1
|
van den Braak MCT, Hoekstra JWM, Bronkhorst EM, Schols JGJH, Ongkosuwito EM, Meijer GJ, van den Beucken JJJP. The effect of surface roughening on the success of orthodontic mini-implants: A systematic review and meta-analysis. Am J Orthod Dentofacial Orthop 2024; 165:262-271.e3. [PMID: 38069923 DOI: 10.1016/j.ajodo.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 11/01/2023] [Accepted: 11/01/2023] [Indexed: 03/01/2024]
Abstract
INTRODUCTION Orthodontic mini-implants are a widely accepted treatment modality in orthodontics; however, the failure rate is moderately high. Surface roughening is the golden standard in conventional oral implantology, and this may prove beneficial for orthodontic mini-implants as well. The objective of this systematic review is to assess the effect of surface roughening on the success rate of orthodontic mini-implants in both adolescent and adult patients undergoing orthodontic treatment. METHODS Randomized studies comparing the success of surface-roughened and smooth, machined-surface orthodontic mini-implants were included. A literature search was conducted for 6 electronic databases (Pubmed/Medline, Embase, Cochrane, CINAHL, Web of Science, and Scopus), Clinical trial registry (https://www. CLINICALTRIALS gov), and grey literature (Google Scholar). A manual search of the reference lists of included studies was performed. Two authors independently performed the screening, data extraction, risk of bias, and quality assessments. The risk of bias was assessed with the Cochrane risk-of-bias 2.0 Tool. Data were synthesized using a random effect model meta-analysis presented as a forest plot. The certainty in the body of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation tool. RESULTS A total of 4226 unique records were screened, and 6 of these were included in the quantitative analysis. Four additional articles were selected for a secondary outcome. A total of 364 orthodontic mini-implants were included in the primary outcome analysis. There was no statistically significant effect of surface roughening on the success of orthodontic mini-implants (odds ratio = 0.63 favoring roughened orthodontic mini-implants; 95% confidence interval, 0.35-1.14). The secondary outcome (ie, the overall failure rate of roughened orthodontic mini-implants) was 6% based on studies with high heterogeneity. Limitations of this study were the risk of bias, study imprecision, and possible publication bias, leading to a very low certainty in the body of evidence. CONCLUSIONS There is very low-quality evidence that there is no statistically significant effect of surface roughening on the success of orthodontic mini-implants in humans. The overall failure rate of surface-roughened orthodontic mini-implants was 6%. FUNDING No funding was received for this review. REGISTRATION This study was preregistered in the Prospective Register of Systematic Reviews (CRD42022371830).
Collapse
Affiliation(s)
- Matheus C T van den Braak
- Section of Orthodontics and Craniofacial Biology, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Jan Willem M Hoekstra
- Section of Orthodontics and Craniofacial Biology, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Ewald M Bronkhorst
- Department of Dentistry, Radboud University Nijmegen Medical Center Nijmegen, The Netherlands
| | - Jan G J H Schols
- Section of Orthodontics and Craniofacial Biology, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Edwin M Ongkosuwito
- Section of Orthodontics and Craniofacial Biology, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Gert J Meijer
- Department of Oral Maxillofacial Surgery, Radboud University Nijmegen Medical Center Nijmegen, The Netherlands
| | - Jeroen J J P van den Beucken
- Section of Regenerative Biomaterials, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| |
Collapse
|
2
|
van Goor IW, Schouten TJ, Verburg DN, Besselink MG, Bonsing BA, Bosscha K, Brosens LA, Busch OR, Cirkel GA, van Dam RM, Festen S, Koerkamp BG, van der Harst E, de Hingh IH, Intven MP, Kazemier G, Los M, Meijer GJ, de Meijer VE, Nieuwenhuijs VB, Roos D, Schreinemakers JM, Stommel MW, Verdonk RC, van Santvoort HC, Daamen LA, Molenaar IQ. Predicting Long-term Disease-free Survival After Resection of Pancreatic Ductal Adenocarcinoma: A Nationwide Cohort Study. Ann Surg 2024; 279:132-137. [PMID: 37450706 PMCID: PMC10727199 DOI: 10.1097/sla.0000000000006004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
OBJECTIVE To develop a prediction model for long-term (≥5 years) disease-free survival (DFS) after the resection of pancreatic ductal adenocarcinoma (PDAC). BACKGROUND Despite high recurrence rates, ~10% of patients have long-term DFS after PDAC resection. A model to predict long-term DFS may aid individualized prognostication and shared decision-making. METHODS This nationwide cohort study included all consecutive patients who underwent PDAC resection in the Netherlands (2014-2016). The best-performing prognostic model was selected by Cox-proportional hazard analysis and Akaike's Information Criterion, presented by hazard ratios (HRs) with 95% confidence intervals (CIs). Internal validation was performed, and discrimination and calibration indices were assessed. RESULTS In all, 836 patients with a median follow-up of 67 months (interquartile range 51-79) were analyzed. Long-term DFS was seen in 118 patients (14%). Factors predictive of long-term DFS were low preoperative carbohydrate antigen 19-9 (logarithmic; HR 1.21; 95% CI 1.10-1.32), no vascular resection (HR 1.33; 95% CI 1.12-1.58), T1 or T2 tumor stage (HR 1.52; 95% CI 1.14-2.04, and HR 1.17; 95% CI 0.98-1.39, respectively), well/moderate tumor differentiation (HR 1.44; 95% CI 1.22-1.68), absence of perineural and lymphovascular invasion (HR 1.42; 95% CI 1.11-1.81 and HR 1.14; 95% CI 0.96-1.36, respectively), N0 or N1 nodal status (HR 1.92; 95% CI 1.54-2.40, and HR 1.33; 95% CI 1.11-1.60, respectively), R0 resection margin status (HR 1.25; 95% CI 1.07-1.46), no major complications (HR 1.14; 95% CI 0.97-1.35) and adjuvant chemotherapy (HR 1.74; 95% CI 1.47-2.06). Moderate performance (concordance index 0.68) with adequate calibration (slope 0.99) was achieved. CONCLUSIONS The developed prediction model, readily available at www.pancreascalculator.com, can be used to estimate the probability of long-term DFS after resection of pancreatic ductal adenocarcinoma.
Collapse
Affiliation(s)
- Iris W.J.M. van Goor
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
- Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center, Utrecht, the Netherlands
| | - Thijs J. Schouten
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| | - Daphne N. Verburg
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| | - Marc G. Besselink
- Department of Surgery, Amsterdam UMC, location University of Amsterdam, Amsterdam, the Netherlands
- Cancer Center Amsterdam, the Netherlands
| | - Bert A. Bonsing
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Koop Bosscha
- Department of Surgery, Jeroen Bosch Hospital, Den Bosch, the Netherlands
| | - Lodewijk A.A. Brosens
- Department of Pathology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| | - Olivier R. Busch
- Department of Surgery, Amsterdam UMC, location University of Amsterdam, Amsterdam, the Netherlands
- Cancer Center Amsterdam, the Netherlands
| | - Geert A. Cirkel
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & Meander Medical Center Amersfoort, Utrecht, the Netherlands
| | | | | | - Bas Groot Koerkamp
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | | | | | - Martijn P.W. Intven
- Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center, Utrecht, the Netherlands
| | - Geert Kazemier
- Cancer Center Amsterdam, the Netherlands
- Department of Surgery, Amsterdam UMC, location Vrije Universiteit, Amsterdam, the Netherlands
| | - Maartje Los
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| | - Gert J. Meijer
- Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center, Utrecht, the Netherlands
| | - Vincent E. de Meijer
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Daphne Roos
- Department of Surgery, Renier de Graaf Gasthuis, Delft, the Netherlands
| | | | - Martijn W.J. Stommel
- Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Robert C. Verdonk
- Department of Gastroenterology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - Hjalmar C. van Santvoort
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| | - Lois A. Daamen
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
- Imaging Division, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - I. Quintus Molenaar
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht University, University Medical Center Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht, the Netherlands
| |
Collapse
|
3
|
Grimbergen G, Hackett SL, van Ommen F, van Lier ALHMW, Borman PTS, Meijers LTC, de Groot-van Breugel EN, de Boer JCJ, Raaymakers BW, Intven MPW, Meijer GJ. Gating and intrafraction drift correction on a 1.5 T MR-Linac: Clinical dosimetric benefits for upper abdominal tumors. Radiother Oncol 2023; 189:109932. [PMID: 37778533 DOI: 10.1016/j.radonc.2023.109932] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/18/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
This work reports on the first seven patients treated with gating and baseline drift correction on the high-field MR-Linac system. Dosimetric analysis showed that the active motion management system improved congruence to the planned dose, efficiently mitigating detrimental effects of intrafraction motion in the upper abdomen.
Collapse
Affiliation(s)
- Guus Grimbergen
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands.
| | - Sara L Hackett
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Fasco van Ommen
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | | | - Pim T S Borman
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Lieke T C Meijers
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | | | - Johannes C J de Boer
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Bas W Raaymakers
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Martijn P W Intven
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| |
Collapse
|
4
|
Eijkelenkamp H, Grimbergen G, Daamen LA, Heerkens HD, van de Ven S, Mook S, Meijer GJ, Molenaar IQ, van Santvoort HC, Paulson E, Erickson BA, Verkooijen HM, Hall WA, Intven MPW. Clinical outcomes after online adaptive MR-guided stereotactic body radiotherapy for pancreatic tumors on a 1.5 T MR-linac. Front Oncol 2023; 13:1040673. [PMID: 37854684 PMCID: PMC10579578 DOI: 10.3389/fonc.2023.1040673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 08/18/2023] [Indexed: 10/20/2023] Open
Abstract
Introduction Online adaptive magnetic resonance-guided radiotherapy (MRgRT) is a promising treatment modality for pancreatic cancer and is being employed by an increasing number of centers worldwide. However, clinical outcomes have only been reported on a small scale, often from single institutes and in the context of clinical trials, in which strict patient selection might limit generalizability of outcomes. This study presents clinical outcomes of a large, international cohort of patients with (peri)pancreatic tumors treated with online adaptive MRgRT. Methods We evaluated clinical outcomes and treatment details of patients with (peri)pancreatic tumors treated on a 1.5 Tesla (T) MR-linac in two large-volume treatment centers participating in the prospective MOMENTUM cohort (NCT04075305). Treatments were evaluated through schematics, dosage, delivery strategies, and success rates. Acute toxicity was assessed until 3 months after MRgRT started, and late toxicity from 3-12 months of follow-up (FU). The EORTC QLQ-C30 questionnaire was used to evaluate the quality of life (QoL) at baseline and 3 months of FU. Furthermore, we used the Kaplan-Meier analysis to calculate the cumulative overall survival. Results A total of 80 patients were assessed with a median FU of 8 months (range 1-39 months). There were 34 patients who had an unresectable primary tumor or were medically inoperable, 29 who had an isolated local recurrence, and 17 who had an oligometastasis. A total of 357 of the 358 fractions from all hypofractionated schemes were delivered as planned. Grade 3-4 acute toxicity occurred in 3 of 59 patients (5%) with hypofractionated MRgRT and grade 3-4 late toxicity in 5 of 41 patients (12%). Six patients died within 3 months after MRgRT; in one of these patients, RT attribution could not be ruled out as cause of death. The QLQ-C30 global health status remained stable from baseline to 3 months FU (70.5 at baseline, median change of +2.7 [P = 0.5]). The 1-year cumulative overall survival for the entire cohort was 67%, and that for the primary tumor group was 66%. Conclusion Online adaptive MRgRT for (peri)pancreatic tumors on a 1.5 T MR-Linac could be delivered as planned, with low numbers of missed fractions. In addition, treatments were associated with limited grade 3-4 toxicity and a stable QoL at 3 months of FU.
Collapse
Affiliation(s)
- Hidde Eijkelenkamp
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Guus Grimbergen
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lois A. Daamen
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Hanne D. Heerkens
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Radiotherapy, Radboud University Medical Center, Nijmegen, Netherlands
| | - Saskia van de Ven
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Stella Mook
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gert J. Meijer
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Izaak Q. Molenaar
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht, Netherlands
| | | | - Eric Paulson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Beth Ann Erickson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | | | - William Adrian Hall
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Martijn P. W. Intven
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| |
Collapse
|
5
|
van Vulpen JK, Eijkelenkamp H, Wessels F, Mulder S, Meijer GJ, Intven MPW. MR-Guided Stereotactic Ablative Body Radiotherapy for Pancreatic Oligometastases from Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e112. [PMID: 37784652 DOI: 10.1016/j.ijrobp.2023.06.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients with pancreatic metastases from renal cell carcinoma (RCC) have been reported to have an unusually favorable prognosis. Traditionally, treatment for these pancreatic oligometastases comprises either surgical resection or systemic therapy. However, stereotactic ablative body radiotherapy (SAbR) may be an effective, non-invasive alternative strategy, provided that it shows acceptable toxicity and high local control rates among treated patients. MATERIALS/METHODS We reviewed all patients treated with MR-guided SABR for pancreatic oligometastases from renal cell carcinoma at a single institute. We explored adverse events (AE), freedom from local progression (FFLP), progression-free survival (PFS), and freedom from start of systemic therapy (FFST) among treated patients. The Kaplan-Meier method was used to describe the time-to-event endpoints. RESULTS From June 2019 to September 2022, we identified 11 patients treated with MR-guided SAbR to 31 pancreatic oligometastases from RCC. Patients had a mean age of 65.6 years (±6.8) and had a median of 3 irradiated pancreatic metastases (range 1-7). Metastases were treated with 5 fractions of 7 Gy (n = 1 metastasis) or 8 Gy (n = 30 metastases) per fraction. One grade 3 adverse event (bleeding) was observed. At a median follow-up of 10.5 months (range 5-46 months), estimated FFLP at 1 year was 100%. 1y-PFS was 83% (95% CI 58-100%), and 1y-FFST was 91% (95% CI 75-100%). CONCLUSION First exploration of MR-guided SAbR to pancreatic oligometastases from RCC indicates that it can be an effective and safe treatment option. Moreover, MR-guided SAbR may facilitate deferral of systemic therapy initiation in this select group of patients with favorable prognosis.
Collapse
Affiliation(s)
| | - H Eijkelenkamp
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - F Wessels
- UMC Utrecht, Utrecht, The Netherlands
| | - S Mulder
- Radboud UMC, Nijmegen, The Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - M P W Intven
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
6
|
Grimbergen G, Eijkelenkamp H, Bernchou U, Bouchart C, Brown K, Chuter R, Dunlop A, Scripes PG, Heerkens HD, de Leon J, Ng SSW, Renz PB, Shessel A, Intven MPW, Meijer GJ. Toward Global Consensus for MR-Guided Treatment Planning for Pancreatic Tumors on a 1.5 T MR-Linac. Int J Radiat Oncol Biol Phys 2023; 117:e305. [PMID: 37785110 DOI: 10.1016/j.ijrobp.2023.06.2326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) MR-guided SBRT with a 1.5 T MR-Linac is a relatively new therapy for pancreatic tumors with varying expertise levels. Moreover, treatment planning in the upper abdomen can be challenging as target coverage is often compromised by dosimetric constraints of abutting bowel structures. This may lead to large differences between centers in protocols, practices. To increase harmonization a worldwide consortium was founded among 1.5 T MR-Linac users. In this work we report on the outcome of the first phase within this collaboration, which is the assessment of the baseline variation between the treatment planning protocols and subsequent dose distributions. MATERIALS/METHODS Twelve centers across three continents (North America, Europe, and Australia) participated in this consortium. Each center was sent the same two anonymized data sets reflecting two cases of locally advanced pancreatic cancer of different complexity levels. The data sets included a CT scan, a predefined structure set containing the gross target volume (GTV) and the OARs, a brief medical history, tumor motion characteristics, and auxiliary CT and MR imaging. Centers were asked to create an MRgRT treatment plan according to their clinical five-fraction SBRT protocol, using their institutional margin structures, beam setup, target prescriptions, and OAR constraints. Key DVH parameters that were evaluated are D99%, D90%, D50%, D1% for the GTV and D0.5cc for the duodenum, small bowel, and stomach. RESULTS In general, large variations were observed in planning objectives and machine settings yielding widely varying inhomogeneous dose distributions to both the tumor and organs at risk (Table 1). This was especially manifest for case 2 where the tumor abutted with both the duodenum and small bowel over a trajectory of multiple centimeters. Not only were different trade-offs between target coverage and OAR sparing observed, but also different strategies for optimizing the integral dose to the tumor. CONCLUSION These results indicate a large variety in the treatment planning strategies that could well translate to differences in outcome. Based on this first evaluation, the consortium will work towards a collective consensus protocol with a second evaluation round after internal discussions.
Collapse
Affiliation(s)
- G Grimbergen
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - H Eijkelenkamp
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - U Bernchou
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark; Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
| | - C Bouchart
- Department of Radiation Oncology, HUB Institut Jules Bordet, Brussels, Belgium
| | - K Brown
- Department of Radiation Oncology, ONJ Centre, Austin Hospital, Heidelberg, VIC, Australia
| | - R Chuter
- The Christie NHS Foundation, Manchester, United Kingdom
| | - A Dunlop
- The Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
| | - P Godoy Scripes
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - H D Heerkens
- Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J de Leon
- GenesisCare, Alexandria, NSW, Australia
| | - S S W Ng
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - P B Renz
- Allegheny Health Network Cancer Institute, Department of Radiation Oncology, Pittsburgh, PA
| | - A Shessel
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - M P W Intven
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
7
|
Verweij ME, Tanaka MD, Kensen CM, van der Heide UA, Marijnen CAM, Janssen T, Vijlbrief T, van Grevenstein WMU, Moons LMG, Koopman M, Lacle MM, Braat MNGJA, Chalabi M, Maas M, Huibregtse IL, Snaebjornsson P, Grotenhuis BA, Fijneman R, Consten E, Pronk A, Smits AB, Heikens JT, Eijkelenkamp H, Elias SG, Verkooijen HM, Schoenmakers MMC, Meijer GJ, Intven M, Peters FP. Towards Response ADAptive Radiotherapy for organ preservation for intermediate-risk rectal cancer (preRADAR): protocol of a phase I dose-escalation trial. BMJ Open 2023; 13:e065010. [PMID: 37321815 PMCID: PMC10277084 DOI: 10.1136/bmjopen-2022-065010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 05/07/2023] [Indexed: 06/17/2023] Open
Abstract
INTRODUCTION Organ preservation is associated with superior functional outcome and quality of life (QoL) compared with total mesorectal excision (TME) for rectal cancer. Only 10% of patients are eligible for organ preservation following short-course radiotherapy (SCRT, 25 Gy in five fractions) and a prolonged interval (4-8 weeks) to response evaluation. The organ preservation rate could potentially be increased by dose-escalated radiotherapy. Online adaptive magnetic resonance-guided radiotherapy (MRgRT) is anticipated to reduce radiation-induced toxicity and enable radiotherapy dose escalation. This trial aims to establish the maximum tolerated dose (MTD) of dose-escalated SCRT using online adaptive MRgRT. METHODS AND ANALYSIS The preRADAR is a multicentre phase I trial with a 6+3 dose-escalation design. Patients with intermediate-risk rectal cancer (cT3c-d(MRF-)N1M0 or cT1-3(MRF-)N1M0) interested in organ preservation are eligible. Patients are treated with a radiotherapy boost of 2×5 Gy (level 0), 3×5 Gy (level 1), 4×5 Gy (level 2) or 5×5 Gy (level 3) on the gross tumour volume in the week following standard SCRT using online adaptive MRgRT. The trial starts on dose level 1. The primary endpoint is the MTD based on the incidence of dose-limiting toxicity (DLT) per dose level. DLT is a composite of maximum one in nine severe radiation-induced toxicities and maximum one in three severe postoperative complications, in patients treated with TME or local excision within 26 weeks following start of treatment. Secondary endpoints include the organ preservation rate, non-DLT, oncological outcomes, patient-reported QoL and functional outcomes up to 2 years following start of treatment. Imaging and laboratory biomarkers are explored for early response prediction. ETHICS AND DISSEMINATION The trial protocol has been approved by the Medical Ethics Committee of the University Medical Centre Utrecht. The primary and secondary trial results will be published in international peer-reviewed journals. TRIAL REGISTRATION NUMBER WHO International Clinical Trials Registry (NL8997; https://trialsearch.who.int).
Collapse
Affiliation(s)
- Maaike E Verweij
- Department of Radiation-Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
- Department of Surgery, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Max D Tanaka
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Chavelli M Kensen
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Uulke A van der Heide
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Corrie A M Marijnen
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Tomas Janssen
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Tineke Vijlbrief
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Leon M G Moons
- Department of Gastroenterology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Miriam Koopman
- Department of Medical Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Miangela M Lacle
- Department of Pathology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Manon N G J A Braat
- Department of Radiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Myriam Chalabi
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Monique Maas
- Department of Radiology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Inge L Huibregtse
- Department of Gastroenterology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Petur Snaebjornsson
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Remond Fijneman
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Esther Consten
- Department of Surgery, Meander Medical Centre, Amersfoort, The Netherlands
- Department of Surgery, University Medical Centre Groningen, Groningen, The Netherlands
| | - Apollo Pronk
- Department of Surgery, Diakonessenhuis Utrecht Zeist Doorn, Utrecht, The Netherlands
| | - Anke B Smits
- Department of Surgery, Sint Antonius Hospital, Nieuwegein, The Netherlands
| | - Joost T Heikens
- Department of Surgery, Hospital Rivierenland, Tiel, The Netherlands
| | - Hidde Eijkelenkamp
- Department of Radiation-Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Sjoerd G Elias
- Department of Epidemiology, Julius Center for Health Sciences and Primary Care, Utrecht, The Netherlands
| | - Helena M Verkooijen
- Department of Radiation-Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | | | - Gert J Meijer
- Department of Radiation-Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Martijn Intven
- Department of Radiation-Oncology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Femke P Peters
- Department of Radiation-Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| |
Collapse
|
8
|
van Vliembergen ENM, Eijkelenkamp H, Valk GD, Vriens MR, Meijer GJ, Intven MPW, de Laat JM. Precision radiotherapy using MR-linac for pancreatic neuroendocrine tumors in MEN1 patients (PRIME): a protocol for a phase I-II trial, and systematic review on available evidence for radiotherapy of pNETs. Front Endocrinol (Lausanne) 2023; 14:994370. [PMID: 37305036 PMCID: PMC10250693 DOI: 10.3389/fendo.2023.994370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 05/09/2023] [Indexed: 06/13/2023] Open
Abstract
Background Surgical resection is the standard of care for the treatment of pancreatic neuro-endocrine tumors (pNETs) in patients with Multiple Endocrine Neoplasia Type 1 (MEN1). However, surgery can cause significant short- and long-term morbidity. Magnetic resonance-guided radiotherapy (MRgRT) is a potential effective treatment with little side effects. With traditional radiotherapy techniques, irradiation of pancreatic tumors to high dose levels was hampered by poor visibility of the tumor during treatment. MRgRT uses onboard MRI to guide the treatment, thereby enabling delivery of ablative irradiation doses to the tumor, while sparing surrounding tissues. In this study, we describe results from a systematic review assessing efficacy of radiotherapy in pNET and present the protocol of the PRIME study. Methods PubMed, Embase and Cochrane Library were searched for articles assessing efficacy and side effects of radiotherapy for the treatment of pNETs. Risk of bias was assessed using the ROBINS-I Risk of Bias Tool for observational studies. Descriptive statistics were used to describe results of included trials. Results Four studies comprising of 33 patients treated by conventional radiotherapy were included. Despite the heterogeneity of studies, radiotherapy appeared to be effective for the treatment of pNETs with most patients responding (45.5%) or stabilizing (42.4%) in tumor size. Conclusion and trial design Due to the limited literature available and concerns about damage to surrounding tissue, conventional radiotherapy is currently little used for pNETs. The PRIME study is a phase I-II trial with a single arm prospective cohort study design, investigating the efficacy of MRgRT in MEN1 patients with pNET. MEN1 patients with growing pNETs with a size between 1.0 and 3.0 cm without malignant features are eligible for inclusion. Patients are treated with 40 Gy in 5 fractions on the pNET, using online adaptive MRgRT on a 1.5T MR-linac. The primary endpoint is the change in tumor size at MRI 12 months follow-up. Secondary endpoints include radiotoxicity, quality of life, endocrine and exocrine pancreas function, resection rate, metastatic free and overall survival. When MRgRT is found effective with low radiotoxicity, it could reduce the need for surgery for pNET and preserve quality of life. Systematic Review Registration PROSPERO https://clinicaltrials.gov/, (CRD42022325542).
Collapse
Affiliation(s)
- Eline N. M. van Vliembergen
- Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Internal Medicine, Division of Endocrinology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hidde Eijkelenkamp
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gerlof D. Valk
- Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Menno R. Vriens
- Department of Endocrine Surgical Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gert J. Meijer
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Martijn P. W. Intven
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Joanne M. de Laat
- Department of Endocrine Oncology, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Internal Medicine, Division of Endocrinology, Radboud University Medical Center, Nijmegen, Netherlands
| |
Collapse
|
9
|
Verstraeten J, Slootweg PJ, Cuijpers VM, Meijer GJ. Do dental implants facilitate bone invasion in patients with oral squamous cell carcinoma? A case series. Int J Oral Maxillofac Surg 2023; 52:413-416. [PMID: 36008220 DOI: 10.1016/j.ijom.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/19/2022] [Accepted: 08/03/2022] [Indexed: 10/15/2022]
Abstract
Osseointegrated dental implants in the vicinity of oral squamous cell carcinoma (OSCC) will become more common given the increasing popularity of dental implants. Reports and studies of OSCC around dental implants are rare, as is the topic of how to handle OSCC surgically when implants are in contact with the tumour. In view of this uncertainty, a histological study was performed to assess tumour behaviour around implants. The aim was to determine whether an implant facilitates inward growth of the tumour and how this should be taken into account during staging and treatment planning. A total of 20 specimens were collected. The implants were macroscopically in contact with OSCC in 13 of the 20 specimens. Histologically, tumour tissue near the implant was indeed confirmed in nine of these cases. In seven cases, tumour invasion had led to resorption of the underlying jaw bone; tumour between the bone-implant interface was identified in only two of these cases, but without downward growth along the implant. In conclusion, no proof was found to confirm that the bone-implant interface is a preferred route for invasion. Therefore, dental implants in the vicinity of OSCC should not influence staging and treatment planning in this regard.
Collapse
Affiliation(s)
- J Verstraeten
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Oral and Maxillofacial Surgery, AZ Groeninge, Kortrijk, Belgium.
| | - P J Slootweg
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - V M Cuijpers
- Department of Dentistry-Regenerative Biomaterials, Radboud University Medical Center, Nijmegen, the Netherlands
| | - G J Meijer
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
| |
Collapse
|
10
|
Grimbergen G, Eijkelenkamp H, van Vulpen JK, van de Ven S, Raaymakers BW, Intven MP, Meijer GJ. Feasibility of online radial magnetic resonance imaging for adaptive radiotherapy of pancreatic tumors. Phys Imaging Radiat Oncol 2023; 26:100434. [PMID: 37034029 PMCID: PMC10074242 DOI: 10.1016/j.phro.2023.100434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
Background and purpose Online adaptive magnetic resonance (MR)-guided treatment planning for pancreatic tumors on 1.5T systems typically employs Cartesian 3D T 2w magnetic resonance imaging (MRI). The main disadvantage of this sequence is that respiratory motion results in substantial blurring in the abdomen, which can hamper delineation accuracy. This study investigated the use of two motion-robust radial MRI sequences as main delineation scan for pancreatic MR-guided radiotherapy. Materials and methods Twelve patients with pancreatic tumors were imaged with a 3D T 2w scan, a Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction (PROPELLER) scan (partially overlapping strips), and a 3D Vane scan (stack-of-stars), on a 1.5T MR-Linac under abdominal compression. The scans were assessed by three radiation oncologists for their suitability for online adaptive delineation. A quantitative comparison was made for gradient entropy and the effect of motion on apparent target position. Results The PROPELLER scans were selected as first preference in 56% of the cases, the 3D T 2w in 42% and the 3D Vane in 3%. PROPELLER scans sometimes contained a large interslice variation which would have compromised delineation. Gradient entropy was significantly higher in 3D T 2w patient scans. The apparent target position was more sensitive to motion amplitude in the PROPELLER scans, but substantial offsets did not occur under 10 mm peak-to-peak. Conclusion PROPELLER MRI may be a superior imaging sequence for pancreatic MRgRT compared to standard Cartesian sequences. The large interslice variation should be mitigated through further sequence optimization before PROPELLER can be adopted for online treatment adaptation.
Collapse
|
11
|
Boekhoff MR, Lagendijk JJ, L.H.M.W. van Lier A, Mook S, Meijer GJ. Intrafraction motion analysis in online adaptive radiotherapy for esophageal cancer. Phys Imaging Radiat Oncol 2023; 26:100432. [PMID: 37020582 PMCID: PMC10068261 DOI: 10.1016/j.phro.2023.100432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023] Open
Abstract
Intrafraction motion during magnetic resonance (MR)-guided dose delivery of esophageal cancer tumors was retrospectively analyzed. Deformable image registration of cine-MR series resulted in gross tumor volume motion profiles in all directions, which were subsequently filtered to isolate respiratory and drift motion. A large variability in intrafraction motion patterns was observed between patients. Median 95% peak-to-peak motion was 7.7 (3.7 - 18.3) mm, 2.1 (0.7 - 5.7) mm and 2.4 (0.5 - 5.6) mm in cranio-caudal, left-right and anterior-posterior directions, relatively. Furthermore, intrafraction drift was generally modest (<5mm). A patient specific approach could lead to very small margins (<3mm) for most patients.
Collapse
|
12
|
van Goor IWJM, Daamen LA, Besselink MG, Bruynzeel AME, Busch OR, Cirkel GA, Koerkamp BG, Mohammed NH, Heerkens HD, van Laarhoven HWM, Meijer GJ, Nuyttens J, van Santvoort HC, van Tienhoven G, Verkooijen HM, Wilmink JW, Molenaar IQ, Intven MPW. Correction: A nationwide randomized controlled trial on additional treatment for isolated local pancreatic cancer recurrence using stereotactic body radiation therapy (ARCADE). Trials 2023; 24:55. [PMID: 36694252 PMCID: PMC9875523 DOI: 10.1186/s13063-022-07036-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- I W J M van Goor
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands. .,Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands.
| | - L A Daamen
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands.,Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M G Besselink
- Department of Surgery, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - A M E Bruynzeel
- Cancer Center Amsterdam, Amsterdam, the Netherlands.,Department of Radiation Oncology, Amsterdam University Medical Center, location Vrije Universiteit, Amsterdam, the Netherlands
| | - O R Busch
- Department of Surgery, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - G A Cirkel
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - B Groot Koerkamp
- Department of Surgery, Erasmus Medical Center, Rotterdam, the Netherlands
| | - N Haj Mohammed
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - H D Heerkens
- Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - H W M van Laarhoven
- Cancer Center Amsterdam, Amsterdam, the Netherlands.,Department of Medical Oncology, Amsterdam University Medical Center, location University of Amsterdam, Amsterdam, the Netherlands
| | - G J Meijer
- Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - J Nuyttens
- Department of Radiation Oncology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - H C van Santvoort
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - G van Tienhoven
- Cancer Center Amsterdam, Amsterdam, the Netherlands.,Department of Radiation Oncology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - H M Verkooijen
- Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J W Wilmink
- Cancer Center Amsterdam, Amsterdam, the Netherlands.,Department of Medical Oncology, Amsterdam University Medical Center, location University of Amsterdam, Amsterdam, the Netherlands
| | - I Q Molenaar
- Department of Surgery, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands
| | - M P W Intven
- Department of Radiation Oncology, Regional Academic Cancer Center Utrecht, Utrecht, the Netherlands.
| | | |
Collapse
|
13
|
Grimbergen G, Eijkelenkamp H, Heerkens HD, Raaymakers BW, Intven MPW, Meijer GJ. Dosimetric impact of intrafraction motion under abdominal compression during MR-guided SBRT for (Peri-) pancreatic tumors. Phys Med Biol 2022; 67. [DOI: 10.1088/1361-6560/ac8ddd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/30/2022] [Indexed: 11/12/2022]
Abstract
Abstract
Objective. Intrafraction motion is a major concern for the safety and effectiveness of high dose stereotactic body radiotherapy (SBRT) in the upper abdomen. In this study, the impact of the intrafraction motion on the delivered dose was assessed in a patient group that underwent MR-guided radiotherapy for upper abdominal malignancies with an abdominal corset. Approach. Fast online 2D cine MRI was used to extract tumor motion during beam-on time. These tumor motion profiles were combined with linac log files to reconstruct the delivered dose in 89 fractions of MR-guided SBRT in twenty patients. Aside the measured tumor motion, motion profiles were also simulated for a wide range of respiratory amplitudes and drifts, and their subsequent dosimetric impact was calculated in every fraction. Main results. The average (SD) D
99% of the gross tumor volume (GTV), relative to the planned D
99%, was 0.98 (0.03). The average (SD) relative D
0.5cc
of the duodenum, small bowel and stomach was 0.99 (0.03), 1.00 (0.03), and 0.97 (0.05), respectively. No correlation of respiratory amplitude with dosimetric impact was observed. Fractions with larger baseline drifts generally led to a larger uncertainty of dosimetric impact on the GTV and organs at risk (OAR). The simulations yielded that the delivered dose is highly dependent on the direction of on baseline drift. Especially in anatomies where the OARs are closely abutting the GTV, even modest LR or AP drifts can lead to substantial deviations from the planned dose. Significance. The vast majority of the fractions was only modestly impacted by intrafraction motion, increasing our confidence that MR-guided SBRT with abdominal compression can be safely executed for patients with abdominal tumors, without the use of gating or tracking strategies.
Collapse
|
14
|
Kroese TE, Ruurda JP, Bakker AS, Jairam J, Mook S, van der Horst S, Meijer GJ, Haj Mohammad N, van Rossum PS, van Hillegersberg R. Detecting Interval Distant Metastases With 18F-FDG PET/CT After Neoadjuvant Chemoradiotherapy for Locally Advanced Esophageal Cancer. Clin Nucl Med 2022; 47:496-502. [PMID: 35384907 PMCID: PMC9071035 DOI: 10.1097/rlu.0000000000004191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/19/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE Patients with esophageal cancer can develop distant metastases between the start of neoadjuvant chemoradiotherapy (nCRT) and planned surgery (ie, interval distant metastases). 18F-FDG PET/CT restaging after nCRT detects interval distant metastases in ~8% of patients. This study aimed to identify patients for whom 18F-FDG PET/CT restaging after nCRT could be omitted using an existing prediction model predicting for interval distant metastases or by using clinical stage groups. PATIENTS AND METHODS Patients with locally advanced esophageal cancer who underwent baseline and restaging 18F-FDG PET/CT, nCRT, and were planned for esophagectomy between 2017 and 2021 were eligible for inclusion in this retrospective study. The primary outcome was the existing model's external performance (ie, discrimination and calibration) for predicting interval distant metastases. The existing model predictors included tumor length, cN status, squamous cell carcinoma histology, and baseline SUVmax. The secondary outcome determined the clinical stage groups (AJCC/UICC eighth edition) for adenocarcinoma and squamous cell carcinoma for which the incidence of interval distant metastases was <10%. RESULTS In total, 127 patients were included, of whom 17 patients developed interval distant metastases (13%; 95% confidence interval [CI], 8%-21%) and 9 patients were deemed to have false-positive lesions on 18F-FDG PET/CT (7%; 95% CI, 2%-11%). Applying the existing model to this cohort yielded a discriminatory c-statistic of 0.56 (95% CI, 0.40-0.72). The calibration of the existing model was poor (ie, mostly underestimating the actual risk). The incidence of true-positive versus false-positive interval distant metastases for patients with clinical stage II disease was 5% versus 0%; clinical stage III, 14% versus 8%; and clinical stage IVa, 22% versus 9%. CONCLUSIONS The existing prediction model cannot reliably identify patients at risk for developing interval distant metastases after nCRT for esophageal cancer. Omission of 18F-FDG PET/CT restaging after nCRT could be considered in patients with clinical stage II esophageal cancer.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Nadia Haj Mohammad
- Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | | | | |
Collapse
|
15
|
Daamen LA, Groot VP, Besselink MG, Bosscha K, Busch OR, Cirkel GA, van Dam RM, Festen S, Groot Koerkamp B, Haj Mohammad N, van der Harst E, de Hingh IHJT, Intven MPW, Kazemier G, Los M, Meijer GJ, de Meijer VE, Nieuwenhuijs VB, Pranger BK, Raicu MG, Schreinemakers JMJ, Stommel MWJ, Verdonk RC, Verkooijen HM, Molenaar IQ, van Santvoort HC. Detection, Treatment, and Survival of Pancreatic Cancer Recurrence in the Netherlands: A Nationwide Analysis. Ann Surg 2022; 275:769-775. [PMID: 32773631 DOI: 10.1097/sla.0000000000004093] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate whether detection of recurrent pancreatic ductal adenocarcinoma (PDAC) in an early, asymptomatic stage increases the number of patients receiving additional treatment, subsequently improving survival. SUMMARY OF BACKGROUND DATA International guidelines disagree on the value of standardized postoperative surveillance for early detection and treatment of PDAC recurrence. METHODS A nationwide, observational cohort study was performed including all patients who underwent PDAC resection (2014-2016). Prospective baseline and perioperative data were retrieved from the Dutch Pancreatic Cancer Audit. Data on follow-up, treatment, and survival were collected retrospectively. Overall survival (OS) was evaluated using multivariable Cox regression analysis, before and after propensity-score matching, stratified for patients with symptomatic and asymptomatic recurrence. RESULTS Eight hundred thirty-six patients with a median follow-up of 37 months (interquartile range 30-48) were analyzed. Of those, 670 patients (80%) developed PDAC recurrence after a median follow-up of 10 months (interquartile range 5-17). Additional treatment was performed in 159/511 patients (31%) with symptomatic recurrence versus 77/159 (48%) asymptomatic patients (P < 0.001). After propensity-score matching on lymph node ratio, adjuvant therapy, disease-free survival, and recurrence site, additional treatment was independently associated with improved OS for both symptomatic patients [hazard ratio 0.53 (95% confidence interval 0.42-0.67); P < 0.001] and asymptomatic patients [hazard ratio 0.45 (95% confidence interval 0.29-0.70); P < 0.001]. CONCLUSIONS Additional treatment of PDAC recurrence was independently associated with improved OS, with asymptomatic patients having a higher probability to receive recurrence treatment. Therefore, standardized postoperative surveillance aiming to detect PDAC recurrence before the onset of symptoms has the potential to improve survival. This provides a rationale for prospective studies on standardized surveillance after PDAC resection.
Collapse
Affiliation(s)
- Lois A Daamen
- Department of Surgery, UMC Utrecht Cancer Center, Utrecht University, Utrecht, the Netherlands
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, the Netherlands
| | - Vincent P Groot
- Department of Surgery, UMC Utrecht Cancer Center, Utrecht University, Utrecht, the Netherlands
| | - Marc G Besselink
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands
| | - Koop Bosscha
- Department of Surgery, Jeroen Bosch Hospital, Den Bosch, the Netherlands
| | - Olivier R Busch
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands
| | - Geert A Cirkel
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht University, the Netherlands
- Department of Medical Oncology, Meander Medical Center, Amersfoort, the Netherlands
| | - Ronald M van Dam
- Department of Surgery, Maastricht UMC+, Maastricht, the Netherlands
| | | | | | - Nadia Haj Mohammad
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht University, the Netherlands
| | | | | | - Martijn P W Intven
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, the Netherlands
| | - Geert Kazemier
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands
| | - Maartje Los
- Department of Medical Oncology, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht University, the Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, the Netherlands
| | - Vincent E de Meijer
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Bobby K Pranger
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Mihaela G Raicu
- Department of Pathology, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, the Netherlands
| | | | - Martijn W J Stommel
- Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Robert C Verdonk
- Department of Gastroenterology, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, the Netherlands
| | - Helena M Verkooijen
- Imaging Division, University Medical Centre Utrecht; Utrecht University, Utrecht, the Netherlands
| | - Izaak Quintus Molenaar
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht University, the Netherlands
| | - Hjalmar C van Santvoort
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Utrecht University, the Netherlands
| |
Collapse
|
16
|
Liebregts JHF, Xi T, Verhamme L, Kramer B, Wouters M, Meijer GJ. [Reconstruction after facial trauma with dento-alveolar injury]. Ned Tijdschr Tandheelkd 2022; 129:169-173. [PMID: 35420274 DOI: 10.5177/ntvt.2022.04.21132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
While abroad, a healthy 36-year-old woman slammed head-on into a rock wall at high speed, resulting in significant facial trauma. The initial trauma care and first aid took place abroad. In the Netherlands, the woman was referred to the Department of Oral and Maxillofacial Surgery (OMFS) for reconstruction of her face and alveolar processes, gingiva and dentition. In view of the seriousness of the injuries, a 3D treatment plan was drawn up in a multidisciplinary collaboration with an OMF surgeon, an implantologist, dentist and dental technician. By making a digital setup of both the top and bottom front in advance, it was possible to work predictably. The first step consisted of bone augmentation by means of an iliac crest graft to reconstruct the major bone defects of the superior and inferior alveolar processes. Implants were then placed in the upper and lower jaws in the ideal position for the suprastructure by means of drill jigs. Within 10 months after the trauma, the implant bridges could be placed on individual zirconia frameworks to optimally restore oral function and aesthetics, completing the reconstruction.
Collapse
|
17
|
Grimbergen G, Eijkelenkamp H, Heerkens HD, Raaymakers BW, Intven MPW, Meijer GJ. Intrafraction pancreatic tumor motion patterns during ungated magnetic resonance guided radiotherapy with an abdominal corset. Phys Imaging Radiat Oncol 2022; 21:1-5. [PMID: 35005257 PMCID: PMC8715205 DOI: 10.1016/j.phro.2021.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 12/25/2022] Open
Abstract
Background Stereotactic body radiotherapy (SBRT) has been shown to be a promising therapy for unresectable pancreatic tumors. However, intrafraction motion, caused by respiratory motion and organ drift, is one of the main concerns for efficient dose delivery in ungated upper abdominal radiotherapy. The aim of this study was to analyze the intrafraction gross tumor volume (GTV) motion in a clinical cohort. Materials and methods We included 13 patients that underwent online adaptive magnetic resonance (MR)-guided SBRT for malignancies in the pancreatic region (5 × 8 Gy). An abdominal corset was fitted in order to reduce the abdominal respiratory motion. Coronal and sagittal cine magnetic resonance images of the tumor region were made at 2 Hz during the entire beam-on time of each fraction. We used deformable image registration to obtain GTV motion profiles in all three directions, which were subsequently high-pass and low-pass filtered to isolate the motion caused by respiratory motion and baseline drift, respectively. Results The mean (SD) respiratory amplitudes were 4.2 (1.9) mm cranio-caudal (CC), 2.3 (1.1) mm ventral-dorsal (AP) and 1.4 (0.6) mm left–right (LR), with low variability within patients. The mean (SD) maximum baseline drifts were 1.2 (1.1) mm CC, 0.5 (0.4) mm AP and 0.5 (0.3) mm LR. The mean (SD) minimum baseline drifts were −0.7 (0.5) mm CC, −0.6 (0.5) mm AP and −0.5 (0.4) mm LR. Conclusion Overall tumor motion during treatment was small and interfractionally stable. These findings show that high-precision ungated MR-guided SBRT is feasible with an abdominal corset.
Collapse
Affiliation(s)
- Guus Grimbergen
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Hidde Eijkelenkamp
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Hanne D Heerkens
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Bas W Raaymakers
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Martijn P W Intven
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, the Netherlands
| |
Collapse
|
18
|
Daamen LA, de Mol van Otterloo SR, van Goor IWJM, Eijkelenkamp H, Erickson BA, Hall WA, Heerkens HD, Meijer GJ, Molenaar IQ, van Santvoort HC, Verkooijen HM, Intven MPW. Online adaptive MR-guided stereotactic radiotherapy for unresectable malignancies in the upper abdomen using a 1.5T MR-linac. Acta Oncol 2022; 61:111-115. [PMID: 34879792 DOI: 10.1080/0284186x.2021.2012593] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Introduction of online adaptive MR-guided radiotherapy enables stereotactic body radiation therapy (SBRT) of upper abdominal tumors. This study aimed to evaluate the feasibility of MR-guided SBRT on a 1.5 T MR-linac in patients with unresectable upper abdominal malignancies. MATERIAL AND METHODS Patients treated at the UMC Utrecht (April 2019 to December 2020) were identified in the prospective 'Multi-OutcoMe EvaluatioN of radiation Therapy Using the MR-linac' (MOMENTUM) study. Feasibility of treatment was arbitrarily defined as an on-table time interval of ≤60 min for >75% of delivered fractions and completion of >95% of fractions as scheduled, reflecting patient tolerability. Acute treatment-related toxicity was assessed at 3 months of follow-up and graded according to the National Cancer Institute Common Terminology Criteria of Adverse Events version 5.0. RESULTS Twenty-five consecutive patients with a median follow-up time of 8 (range 4-23) months were treated with 35 Gray (n = 4) and 40 Gray (n = 21) in five fractions over 2 weeks. For all fractions, contours were adapted based on the daily anatomy and delivered within 47 min/fraction (range 30-74). In 98/117 fractions (84%), adapted treatment was completed within 1 h. All patients received the scheduled irradiation dose as planned. No acute grade 3 toxicity or higher was reported. Treatment resulted in pain alleviation in 11/13 patients. DISCUSSION Online adaptive MR-guided SBRT on a 1.5 T MR-linac is feasible and well-tolerated in patients with unresectable upper abdominal malignancies. Dose escalation studies, followed by comparative studies, are needed to determine the optimal radiation dose for irradiation of upper abdominal malignancies.
Collapse
Affiliation(s)
- Lois A. Daamen
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | | | - Iris W. J. M. van Goor
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | - Hidde Eijkelenkamp
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | - Beth A. Erickson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - William A. Hall
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Hanne D. Heerkens
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | - Gert J. Meijer
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | - I. Quintus Molenaar
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands
| | - Hjalmar C. van Santvoort
- Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center & St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands
| | - Helena M. Verkooijen
- Division of Imaging, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| | - Martijn P. W. Intven
- Department of Radiation Oncology, UMC Utrecht Cancer Center, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
19
|
Eijkelenkamp H, Boekhoff MR, Verweij ME, Peters FP, Meijer GJ, Intven MPW. Planning target volume margin assessment for online adaptive MR-guided dose-escalation in rectal cancer on a 1.5 T MR-Linac. Radiother Oncol 2021; 162:150-155. [PMID: 34280404 DOI: 10.1016/j.radonc.2021.07.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE This study assessed the margins needed to cover tumor intrafraction motion during an MR-guided radiotherapy (MRgRT) dose-escalation strategy in intermediate risk rectal cancer. METHODS Fifteen patients with rectal cancer were treated with neoadjuvant short-course radiotherapy, 5x5 Gy, according to an online adaptive workflow on a 1.5 T MR-linac. Per patient, 26 3D T2 weighted MRIs were made; one reference scan preceding treatment and five scans per treatment fraction. The primary tumor was delineated on each scan as gross tumor volume (GTV). Target coverage margins were assessed by isotropically expanding the reference GTV until more than 95% of the voxels of the sequential GTVs were covered. A margin with a coverage probability threshold of 90% was defined as adequate. Intra- and interfraction margins to cope with the movement of the GTV in the period between scans were calculated to indicate the target volume margins. Furthermore, the margin needed to cover GTV movement was calculated for different time intervals. RESULTS The required margins to cover inter- and intrafraction GTV motion were 17 mm and 6 mm, respectively. Analysis based on time intervals between scans showed smaller margins were needed for adequate GTV coverage as time intervals became shorter, with a 4 mm margin required for a procedure of 15 min or less. CONCLUSION The shorter the treatment time, the smaller the margins needed to cover for the GTV movement during an online adaptive MRgRT dose-escalation strategy for intermediate risk rectal cancer. When time intervals between replanning and the end of dose delivery could be reduced to 15 min, a 4 mm margin would allow adequate target coverage.
Collapse
Affiliation(s)
- Hidde Eijkelenkamp
- Department of Radiation Oncology, University Medical Center Utrecht, The Netherlands.
| | - Mick R Boekhoff
- Department of Radiation Oncology, University Medical Center Utrecht, The Netherlands
| | - Maaike E Verweij
- Department of Radiation Oncology, University Medical Center Utrecht, The Netherlands
| | - Femke P Peters
- Department of Radiation Oncology, Leiden University Medical Center, The Netherlands; Department of Radiation Oncology, Netherlands Cancer Institute/Antoni van Leeuwenhoek, The Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, The Netherlands
| | - Martijn P W Intven
- Department of Radiation Oncology, University Medical Center Utrecht, The Netherlands
| |
Collapse
|
20
|
Boekhoff MR, Defize IL, Borggreve AS, van Hillegersberg R, Kotte ANTJ, Lagendijk JJW, van Lier ALHMW, Ruurda JP, Takahashi N, Mook S, Meijer GJ. CTV-to-PTV margin assessment for esophageal cancer radiotherapy based on an accumulated dose analysis. Radiother Oncol 2021; 161:16-22. [PMID: 33992628 DOI: 10.1016/j.radonc.2021.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE This study aimed to assess the smallest clinical target volume (CTV) to planned target volume (PTV) margins for esophageal cancer radiotherapy using daily online registration to the bony anatomy that yield full dosimetric coverage over the course of treatment. METHODS 29 esophageal cancer patients underwent six T2-weighted MRI scans at weekly intervals. An online bone-match image-guided radiotherapy treatment of five fractions was simulated for each patient. Multiple conformal treatment plans with increasing margins around the CTV were created for each patient. Then, the dose was warped to obtain an accumulated dose per simulated fraction. Full target coverage by 95% of the prescribed dose was assessed as a function of margin expansion in six directions. If target coverage in a single direction was accomplished, then the respective margin remained fixed for the subsequent dose plans. Margins in uncovered directions were increased in a new dose plan until full target coverage was achieved. RESULTS The smallest set of CTV-to-PTV margins that yielded full dosimetric CTV coverage was 8 mm in posterior and right direction, 9 mm in anterior and cranial direction and 10 mm in left and caudal direction for 27 out of 29 patients. In two patients the curvature of the esophagus considerably changed between fractions, which required a 17 and 23 mm margin in right direction. CONCLUSION Accumulated dose analysis revealed that CTV-to-PTV treatment margins of 8, 9 and 10 mm in posterior & right, anterior & cranial and left & caudal direction, respectively, are sufficient to account for interfraction tumor variations over the course of treatment when applying a daily online bone match. However, two patients with extreme esophageal interfraction motion were insufficiently covered with these margins and were identified as patients requiring replanning to achieve full target coverage.
Collapse
Affiliation(s)
- M R Boekhoff
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands.
| | - I L Defize
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands; Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - A S Borggreve
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands; Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - R van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - A N T J Kotte
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - J J W Lagendijk
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - A L H M W van Lier
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - J P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - N Takahashi
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands; Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands.
| |
Collapse
|
21
|
Hall WA, Small C, Paulson E, Koay EJ, Crane C, Intven M, Daamen LA, Meijer GJ, Heerkens HD, Bassetti M, Rosenberg SA, Aitken K, Myrehaug S, Dawson LA, Lee P, Gani C, Chuong MD, Parikh PJ, Erickson BA. Magnetic Resonance Guided Radiation Therapy for Pancreatic Adenocarcinoma, Advantages, Challenges, Current Approaches, and Future Directions. Front Oncol 2021; 11:628155. [PMID: 34046339 PMCID: PMC8144850 DOI: 10.3389/fonc.2021.628155] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/03/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction Pancreatic adenocarcinoma (PAC) has some of the worst treatment outcomes for any solid tumor. PAC creates substantial difficulty for effective treatment with traditional RT delivery strategies primarily secondary to its location and limited visualization using CT. Several of these challenges are uniquely addressed with MR-guided RT. We sought to summarize and place into context the currently available literature on MR-guided RT specifically for PAC. Methods A literature search was conducted to identify manuscript publications since September 2014 that specifically used MR-guided RT for the treatment of PAC. Clinical outcomes of these series are summarized, discussed, and placed into the context of the existing pancreatic literature. Multiple international experts were involved to optimally contextualize these publications. Results Over 300 manuscripts were reviewed. A total of 6 clinical outcomes publications were identified that have treated patients with PAC using MR guidance. Successes, challenges, and future directions for this technology are evident in these publications. MR-guided RT holds theoretical promise for the treatment of patients with PAC. As with any new technology, immediate or dramatic clinical improvements associated with its use will take time and experience. There remain no prospective trials, currently publications are limited to small retrospective experiences. The current level of evidence for MR guidance in PAC is low and requires significant expansion. Future directions and ongoing studies that are currently open and accruing are identified and reviewed. Conclusions The potential promise of MR-guided RT for PAC is highlighted, the challenges associated with this novel therapeutic intervention are also reviewed. Outcomes are very early, and will require continued and long term follow up. MR-guided RT should not be viewed in the same fashion as a novel chemotherapeutic agent for which dosing, administration, and toxicity has been established in earlier phase studies. Instead, it should be viewed as a novel procedural intervention which must be robustly tested, refined and practiced before definitive conclusions on the potential benefits or detriments can be determined. The future of MR-guided RT for PAC is highly promising and the potential implications on PAC are substantial.
Collapse
Affiliation(s)
- William A Hall
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Christina Small
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Eric Paulson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Eugene J Koay
- Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Christopher Crane
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Martijn Intven
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lois A Daamen
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Hanne D Heerkens
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Michael Bassetti
- Department of Radiation Oncology, University of Wisconsin-Madison, Madison, WI, United States
| | - Stephen A Rosenberg
- Department of Radiation Oncology, Moffitt Cancer Center, Tampa, FL, United States
| | - Katharine Aitken
- Department of Radiation Oncology, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Sten Myrehaug
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Laura A Dawson
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Percy Lee
- Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Cihan Gani
- Department of Radiation Oncology, Faculty of Medicine, University of Tübingen, Tübingen, Germany
| | | | - Parag J Parikh
- Henry Ford Medical Center, Henry Ford Health System, Detroit, MI, United States
| | - Beth A Erickson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| |
Collapse
|
22
|
Abstract
In this review, we outline the potential benefits and the future role of MRI and MR-guided radiotherapy (MRgRT) in the management of esophageal cancer. Although not currently used in most clinical practice settings, MRI is a useful non-invasive imaging modality that provides excellent soft tissue contrast and the ability to visualize cancer physiology. Chemoradiation therapy with or without surgery is essential for the management of locally advanced esophageal cancer. MRI can help stage esophageal cancer, delineate the gross tumor volume (GTV), and assess the response to chemoradiotherapy. Integrated MRgRT systems can help overcome the challenge of esophageal motion due to respiratory motion by using real-time imaging and tumor tracking with respiratory gating. With daily on-table MRI, shifts in tumor position and tumor regression can be taken into account for online-adaptation. The combination of accurate GTV visualization, respiratory gating, and online adaptive planning, allows for tighter treatment volumes and improved sparing of the surrounding normal organs. This could lead to a reduction in radiotherapy induced cardiac toxicity, pneumonitis and post-operative complications. Tumor physiology as seen on diffusion weighted imaging or dynamic contrast enhancement can help individualize treatments based on the response to chemoradiotherapy. Patients with a complete response on MRI can be considered for organ preservation while patients with no response can be offered an earlier resection. In patients with a partial response to chemoradiotherapy, areas of residual cancer can be targeted for dose escalation. The tighter and more accurate targeting enabled with MRgRT may enable hypofractionated treatment schedules.
Collapse
Affiliation(s)
- Sangjune Laurence Lee
- Department of Oncology, Division of Radiation Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, AB, Canada
| | - Michael Bassetti
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI, United States
| | - Gert J. Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Stella Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| |
Collapse
|
23
|
Wetzels JGH, Meijer GJ, de Haan AFJ, Merkx MAW, Speksnijder CM. Immediate implant placement in edentulous oral cancer patients: a long-term retrospective analysis of 207 patients. Int J Oral Maxillofac Surg 2021; 50:1521-1528. [PMID: 33642151 DOI: 10.1016/j.ijom.2021.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/18/2020] [Accepted: 01/21/2021] [Indexed: 11/18/2022]
Abstract
Although the functional benefits of implants in the rehabilitation of edentulous cancer patients are well-known, most studies report on postponed implant placement. The outcome of immediate implant placement regarding successful rehabilitation, implant loading and survival is unclear. Two hundred and seven edentulous oral cancer patients that received implants during ablative surgery at the Radboud University Medical Centre between 2000 and 2011 were included. Data regarding the oncological treatment, implant placement, follow-up and prosthodontic rehabilitation were recorded retrospectively with a follow-up period of 5-17 years. Functioning implant-retained dentures were made in 73.9% of the patients. Of the surviving patients, 81.9% had functioning dentures after 2 years and 86.3% after 10 years. Patients with ASA score 1 and younger patients were rehabilitated more frequently. The median time of functioning denture placement was 336 days after surgery, with a negative influence of postoperative radiotherapy. Implant survival was 90.7%, and was lower when the implant was placed in a jaw involved in the tumour. Immediate implant placement during oral cancer surgery led to a high number of edentulous patients rehabilitated with implant-retained dentures, which are placed at an early time.
Collapse
Affiliation(s)
- J G H Wetzels
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, The Netherlands
| | - G J Meijer
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A F J de Haan
- Department for Health Evidence, Section Biostatistics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M A W Merkx
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands; Netherlands Comprehensive Cancer Organization (IKNL), Utrecht, The Netherlands
| | - C M Speksnijder
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, The Netherlands; Julius Center Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.
| |
Collapse
|
24
|
Terheyden H, Meijer GJ, Raghoebar GM. Vertical bone augmentation and regular implants versus short implants in the vertically deficient posterior mandible: a systematic review and meta-analysis of randomized studies. Int J Oral Maxillofac Surg 2021; 50:1249-1258. [PMID: 33589294 DOI: 10.1016/j.ijom.2021.01.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/29/2020] [Accepted: 01/11/2021] [Indexed: 11/28/2022]
Abstract
The aim of this study was to perform a systematic review and meta-analysis of randomized controlled trials (RCTs) comparing the outcomes of short dental implants (≤7mm) versus vertical bone augmentation followed by regular dental implants (>7mm) in the deficient posterior mandible. In total, eight RCTs (six using interpositional sandwich grafting and two using a guided bone regeneration technique) were reported in 17 articles at different time points. In the meta-analysis of the sandwich group, the relative risk (RR) for implant loss at 1year was in favour of short implants (RR 0.41, P=0.02), while no significant difference was found at 3 years (RR 0.65, P=0.43), 5 years (RR 1.08, P=0.86), or 8 years (RR 1.53, P=0.52). The risk of complications was in favour of short implants (RR 0.34, P=0.0002), as was the mean difference in marginal bone resorption after 1 year (-0.09mm, P=0.17), 3 years (-0.32mm, P<0.00001), 5 years (-0.65mm, P<0.00001), and 8 years (-0.88, P<0.00001). The mean residual osseointegration length of the implants was between 2.94mm and 4.44mm in the short implants group and between 7.97mm and 8.62mm in the regular implants group after 5 years. In conclusion, in the deficient atrophic posterior mandible, short implants and regular implants demonstrate comparable outcomes within the first 5 years. Patients who are fit for surgery should be informed about the risks and benefits of both options.
Collapse
Affiliation(s)
- H Terheyden
- Department of Oral and Maxillofacial Surgery, Red Cross Hospitals of Nordhessen, Kassel, Germany.
| | - G J Meijer
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - G M Raghoebar
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| |
Collapse
|
25
|
Defize IL, van der Horst S, Bülbul M, Haj Mohammad N, Mook S, Meijer GJ, Brosens LAA, Ruurda JP, van Hillegersberg R. Salvage Robot-Assisted Minimally Invasive Esophagectomy (RAMIE) for T4b Esophageal Cancer After Definitive Chemoradiotherapy. Ann Surg Oncol 2020; 28:2730-2738. [PMID: 33341917 PMCID: PMC8043929 DOI: 10.1245/s10434-020-09425-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/26/2020] [Indexed: 12/19/2022]
Abstract
Background Patients with esophageal cancer that invades adjacent structures (cT4b) are precluded from surgery and usually treated with definitive chemoradiotherapy (dCRT). dCRT might result in sufficient downstaging to enable a radical resection, possibly improving survival. This study aimed to assess the perioperative and oncologic outcomes of a salvage robot-assisted minimally invasive esophagectomy (RAMIE) in patients with cT4b esophageal cancer after dCRT. Methods Between June 2012 and November 2019, patients who underwent a RAMIE with a gastric conduit reconstruction after completion of dCRT for cT4b esophageal carcinoma were identified from a prospectively maintained surgical database at the University Medical Center Utrecht. Results In total, 24 patients with a histopathologically confirmed T4b adenocarcinoma or squamous cell carcinoma of the esophagus were included. The adjacent organs involved were the tracheobronchial tree (67%), aorta (21%) or both (13%). No conversions or major intraoperative complications were observed. A radical resection was achieved in 22 patients (92%), and a pathologic complete response was observed in 13 (54%) patients. Postoperative grade 2 or higher complications occurred in 20 patients (83%). The disease-free survival at 24 months was 68% for the patients in whom a radical resection was achieved. Conclusion In patients with cT4b esophageal cancer treated with dCRT followed by a salvage RAMIE, a radical resection rate of 92% was achieved, with acceptable complications and promising survival rates. These results demonstrate the feasibility of a curative surgical treatment for patients with initially irresectable esophageal cancer but underscore the importance of a proper preoperative patient selection.
Collapse
Affiliation(s)
- I L Defize
- Department of Surgery, G04.228, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.,Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - S van der Horst
- Department of Surgery, G04.228, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - M Bülbul
- Department of Pulmonary Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - N Haj Mohammad
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - S Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - L A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - J P Ruurda
- Department of Surgery, G04.228, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - R van Hillegersberg
- Department of Surgery, G04.228, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
| |
Collapse
|
26
|
Daamen LA, Heerkens HD, Molenaar IQQ, Verkooijen HLM, Meijer GJ, Intven MPW. [MRI-guided radiotherapy: An innovation for patients with upper abdominal malignancies]. Ned Tijdschr Geneeskd 2020; 164:D4780. [PMID: 32940972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
MRI-guided radiotherapy is a new technique for high-precision radiation(stereotactic radiotherapy) for patients with malignancies. This minimally invasive treatmentis carried out with the aid of an irradiation device with an integrated MRI scanner, the 'magnetic resonance linear accelerator' (MR-Linac), which is used to image the tumour and surrounding tissue immediately before each radiotherapy treatment. The radiation plan can be adapted on the basis of the latest MRI image as required. MRI-guided radiotherapy can have advantages when treating patients with malignancies in the upper abdomen, such as pancreatic carcinoma or periampullary malignancies. These tumours and the surrounding tissues are often poorly visible on the CT scans used in conventional radiotherapy techniques. Patients with upper-abdominal malignancies can be precisely and effectively treated with MRI-guided radiotherapy and organs that are sensitive to radiation can be spared as much as possible, thus decreasing the risk of side-effects.
Collapse
Affiliation(s)
- Lois A Daamen
- UMCU, Utrecht. Afd. Radiotherapie
- Contact: Lois A. Daamen
| | | | | | | | | | | |
Collapse
|
27
|
Dieleman FJ, Meijer GJ, Merkx MAW. Does hyperbaric oxygen therapy play a role in the management of osteoradionecrosis? A survey of Dutch oral and maxillofacial surgeons. Int J Oral Maxillofac Surg 2020; 50:273-276. [PMID: 32674903 DOI: 10.1016/j.ijom.2020.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/22/2020] [Accepted: 06/26/2020] [Indexed: 11/27/2022]
Abstract
For decades, hyperbaric oxygen (HBO) has often been part of the treatment of osteoradionecrosis (ORN), despite controversy in the literature about its efficacy. An online survey was conducted to investigate the use of HBO in the treatment of ORN by Dutch oral and maxillofacial surgeons and to assess their perception of its efficacy. Of the 53 Dutch oral and maxillofacial surgery units contacted, 49 (92%) replied. Thirty-five were not head and neck cancer (HNC) units or preferred partner (PP-HNC) units recognized by the Dutch Head and Neck Association. All HNC and PP-HNC units (group 1) treated ORN patients, compared to only 12 (34%) of the non-HNC units (group 2). The average number of ORN patients seen and treated was higher in group 1. The units in group 1 more often referred patients for HBO therapy (HBOT) than those in group 2 (93% vs 84%). The efficacy of HBOT in curing ORN, rated on a scale of 1 to 5 points, was 3.7 in group 1 and 3.2 in group 2. This survey shows a trend towards centralization of ORN care to more experienced units. These units tend to use HBOT in curing ORN.
Collapse
Affiliation(s)
- F J Dieleman
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - G J Meijer
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M A W Merkx
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
28
|
Defize IL, Boekhoff MR, Borggreve AS, van Lier ALHMW, Takahashi N, Haj Mohammad N, Ruurda JP, van Hillegersberg R, Mook S, Meijer GJ. Tumor volume regression during neoadjuvant chemoradiotherapy for esophageal cancer: a prospective study with weekly MRI. Acta Oncol 2020; 59:753-759. [PMID: 32400242 DOI: 10.1080/0284186x.2020.1759819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Neoadjuvant chemoradiotherapy (nCRT) for esophageal cancer causes tumor regression during treatment. Tumor regression can induce changes in the thoracic anatomy, with smaller target volumes and displacement of organs at risk (OARs) surrounding the tumor as a result. Adaptation of the radiotherapy treatment plan according to volumetric changes during treatment might reduce radiation dose to the OARs, while maintaining adequate target coverage. Data on the magnitude of the volumetric changes and its impact on the thoracic anatomy is scarce. The aim of this study was to assess the volumetric changes in the primary tumor during nCRT for esophageal cancer based on weekly MRI scans.Material and methods: In this prospective study, patients with adeno- or squamous cell carcinoma of the esophagus treated with neoajduvant chemoradiotherapy according to the CROSS regimen (carboplatin + paclitaxel + 23 × 1.8 Gy) were included. Of each patient, six sequential MRI scans were acquired: one prior to nCRT, and five in each subsequent week during nCRT. Tumor volumes were delineated on the transversal T2 weighted images by two radiation oncologists. Volumetric changes were analyzed using linear mixed effects models.Results: A total of 170 MRI scans from 29 individual patients were included. The mean (± standard deviation (SD)) tumor volume at baseline was 45 cm3 (± 23). Tumor volume regression started after the first week of nCRT with a significant decrease in tumor volumes every subsequent week. A decrease to 42 cm3 (91% of initial volume), 38 cm3 (81%), 35 cm3 (77%), and 32 cm3 (72%) was observed in the second, third, fourth and fifth week of nCRT, respectively.Conclusion: Based on weekly MRI scanning during nCRT for esophageal cancer, a considerable decrease in tumor volume was observed during treatment. Volume regression and consequential anatomical changes suggest the possible benefit of adaptive radiotherapy.
Collapse
Affiliation(s)
- Ingmar L. Defize
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Mick R. Boekhoff
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Alicia S. Borggreve
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Astrid L. H. M. W. van Lier
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Noriyoshi Takahashi
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nadia Haj Mohammad
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jelle P. Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Richard van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Stella Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Gert J. Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
29
|
Tabassum A, Meijer GJ, Cuijpers VMJI, Frank Walboomers X. Combined effect of undersized surgical technique and axial compression on the primary implant stability and host bone architecture. Saudi Dent J 2020; 33:283-291. [PMID: 34194192 PMCID: PMC8236550 DOI: 10.1016/j.sdentj.2020.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 12/11/2022] Open
Abstract
Aim The aim of this study was to investigate the combined effect of the lateral-compression of host-bone (undersized-osteotomy-preparation) and axial-compression of host-bone (not drilling the full length of the implant) on the primary-implant-stability and the host-bone-architecture. Materials and Methods In this experimental-study, 44 dental implants (diameter-4.2 mm; length-10 mm; Dyna®) were installed in the femoral-condyles of four cadaver-goats using four different surgical approaches (11 implant/surgical approach; n = 11). Approach-1: Standard preparation according to the manufacturer's guidelines. The bone-cavity was prepared up to 10 mm in depth and 4 mm in diameter. Approach-2: Preparation up to 8 mm in depth and 4 mm in diameter. Approach-3: Preparation up to 10 mm in depth. Approach-4: The bone-cavity was prepared up to 8 mm in depth and 3.6 mm in diameter. Insertion torque (n = 11), removal torque (n = 7) and % bone-implant contact (n = 4) measurements were recorded. Bone architecture was assessed by micro-computer tomography and histological analysis (n = 4). Results For approaches 2, 3, and 4 (P < .05), insertion-torque values were significantly higher as compared to approach 1. Regarding the bone-implant-contact percentage (%BIC), approach 3 and 4 were significantly higher compared to approach 1 and 2 (P<.05). For approach 2, the %bone volume (%BV) was significantly higher as compared to approach 1 (P<.05) for the most the inner zone of host bone in proximity of the implant. Conclusion Lateral and axial compression improved the primary-implant-stability and therefore this new surgical-technique should be considered as an alternative approach especially for placing implants in low-density bone. Nevertheless, additional in vivo studies should be performed.
Collapse
Affiliation(s)
- Afsheen Tabassum
- Department of Preventive Dentistry, Imam Abdulrahman Bin Faisal University, College of Dentistry Dammam, Saudi Arabia
| | - Gert J Meijer
- Department of Implantology & Periodontology, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands.,Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
| | - Vincent M J I Cuijpers
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - X Frank Walboomers
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands
| |
Collapse
|
30
|
Dings JPJ, Vijverberg MA, Hol MKS, Ulrich DJO, de Haan AFJ, Verhage-Damen GW, de Clonie Maclennan-Naphausen MTP, Kruyt IJ, Ghaeminia H, Bruekers-Schipper GB, Ingels KJAO, Dicker GJ, Meijer GJ, Merkx MAW. Autologous versus prosthetic nasal and auricular reconstruction - patient, professional and layperson perceptions. Int J Oral Maxillofac Surg 2020; 49:1271-1278. [PMID: 32173245 DOI: 10.1016/j.ijom.2020.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/27/2019] [Accepted: 02/26/2020] [Indexed: 10/24/2022]
Abstract
The aim of this study was to retrospectively evaluate the perceptions of aesthetic outcome following the autologous and prosthetic reconstruction of nasal and auricular defects among patients, professionals (oral and maxillofacial surgeons and ear, nose and throat surgeons) and people unfamiliar with reconstructive surgery. The influence of anatomical subunits on the overall perception of nasal and auricular reconstructions was also determined. A total of 119 patients treated for nasal and auricular defects between 1997 and 2016, with a minimum follow-up period of 6 months, were selected, and photographs of 77 of these patients (65%) were presented in a digital survey and reviewed using a standardized questionnaire. No clinically relevant correlations were found between the age or gender of patients (as well as those of the respondents) and their scores. Prosthetic reconstructions of nasal and auricular defects were considered advantageous over autologous reconstructions in terms of the subjective aesthetic outcome in the view of the professionals, in particular oral and maxillofacial surgeons; however, the patients judged both techniques to be equally effective in terms of aesthetics. No anatomical subunits were found to have a significant impact on the overall match of a nasal or auricular reconstruction with the patient's face.
Collapse
Affiliation(s)
- J P J Dings
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - M A Vijverberg
- Department of Otorhinolaryngology, Donders Center for Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M K S Hol
- Department of Otorhinolaryngology, Donders Center for Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - D J O Ulrich
- Department of Plastic and Reconstructive Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A F J de Haan
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - G W Verhage-Damen
- Department of Otorhinolaryngology, Donders Center for Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - I J Kruyt
- Department of Otorhinolaryngology, Donders Center for Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - H Ghaeminia
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - K J A O Ingels
- Department of Otorhinolaryngology, Donders Center for Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - G J Dicker
- Department of Oral and Maxillofacial Surgery, Elkerliek Hospital, Helmond, The Netherlands
| | - G J Meijer
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M A W Merkx
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
31
|
Borggreve AS, Goense L, van Rossum PSN, Heethuis SE, van Hillegersberg R, Lagendijk JJW, Lam MGEH, van Lier ALHMW, Mook S, Ruurda JP, van Vulpen M, Voncken FEM, Aleman BMP, Bartels-Rutten A, Ma J, Fang P, Musall BC, Lin SH, Meijer GJ. Preoperative Prediction of Pathologic Response to Neoadjuvant Chemoradiotherapy in Patients With Esophageal Cancer Using 18F-FDG PET/CT and DW-MRI: A Prospective Multicenter Study. Int J Radiat Oncol Biol Phys 2020; 106:998-1009. [PMID: 31987972 DOI: 10.1016/j.ijrobp.2019.12.038] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 11/06/2019] [Accepted: 12/26/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE Accurate preoperative prediction of pathologic response to neoadjuvant chemoradiotherapy (nCRT) in patients with esophageal cancer could enable omission of esophagectomy in patients with a pathologic complete response (pCR). This study aimed to evaluate the individual and combined value of 18F-fluorodeoxyglucose positron emission tomography with integrated computed tomography (18F-FDG PET/CT) and diffusion-weighted magnetic resonance imaging (DW-MRI) during and after nCRT to predict pathologic response in patients with esophageal cancer. METHODS AND MATERIALS In this multicenter prospective study, patients scheduled to receive nCRT followed by esophagectomy for esophageal cancer underwent 18F-FDG PET/CT and DW-MRI scanning before the start of nCRT, during nCRT, and before esophagectomy. Response to nCRT was based on histopathologic evaluation of the resection specimen. Relative changes in 18F-FDG PET/CT and DW-MRI parameters were compared between patients with pCR and non-pCR groups. Multivariable ridge regression analyses with bootstrapped c-indices were performed to evaluate the individual and combined value of 18F-FDG PET/CT and DW-MRI. RESULTS pCR was found in 26.1% of 69 patients. Relative changes in 18F-FDG PET/CT parameters after nCRT (Δ standardized uptake value [SUV]mean,postP = .016, and Δ total lesion glycolysis postP = .024), as well as changes in DW-MRI parameters during nCRT (Δ apparent diffusion coefficient [ADC]duringP = .008) were significantly different between pCR and non-pCR. A c-statistic of 0.84 was obtained for a model with ΔADCduring, ΔSUVmean,post, and histology in classifying patients as pCR (versus 0.82 for ΔADCduring and 0.79 for ΔSUVmean,post alone). CONCLUSIONS Changes on 18F-FDG PET/CT after nCRT and early changes on DW-MRI during nCRT can help identify pCR to nCRT in esophageal cancer. Moreover, 18F-FDG PET/CT and DW-MRI might be of complementary value in the assessment of pCR.
Collapse
Affiliation(s)
- Alicia S Borggreve
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands; Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Lucas Goense
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands; Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Peter S N van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Sophie E Heethuis
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | | | - Jan J W Lagendijk
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Marnix G E H Lam
- Department of Nuclear Medicine, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Astrid L H M W van Lier
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Stella Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht University, the Netherlands
| | | | - Francine E M Voncken
- Department of Radiation Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Berthe M P Aleman
- Department of Radiation Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Annemarieke Bartels-Rutten
- Department of Radiology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Jingfei Ma
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Penny Fang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Benjamin C Musall
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Steven H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, the Netherlands.
| |
Collapse
|
32
|
Borggreve AS, Heethuis SE, Boekhoff MR, Goense L, van Rossum PSN, Brosens LAA, van Lier ALHMW, van Hillegersberg R, Lagendijk JJW, Mook S, Ruurda JP, Meijer GJ. Optimal timing for prediction of pathologic complete response to neoadjuvant chemoradiotherapy with diffusion-weighted MRI in patients with esophageal cancer. Eur Radiol 2019; 30:1896-1907. [PMID: 31822974 PMCID: PMC7062655 DOI: 10.1007/s00330-019-06513-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/18/2019] [Accepted: 10/14/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This study was conducted in order to determine the optimal timing of diffusion-weighted magnetic resonance imaging (DW-MRI) for prediction of pathologic complete response (pCR) to neoadjuvant chemoradiotherapy (nCRT) for esophageal cancer. METHODS Patients with esophageal adenocarcinoma or squamous cell carcinoma who planned to undergo nCRT followed by surgery were enrolled in this prospective study. Patients underwent six DW-MRI scans: one baseline scan before the start of nCRT and weekly scans during 5 weeks of nCRT. Relative changes in mean apparent diffusion coefficient (ADC) values between the baseline scans and the scans during nCRT (ΔADC(%)) were compared between pathologic complete responders (pCR) and non-pCR (tumor regression grades 2-5). The discriminative ability of ΔADC(%) was determined based on the c-statistic. RESULTS A total of 24 patients with 142 DW-MRI scans were included. pCR was observed in seven patients (29%). ΔADC(%) from baseline to week 2 was significantly higher in patients with pCR versus non-pCR (median [IQR], 36% [30%, 41%] for pCR versus 16% [14%, 29%] for non-pCR, p = 0.004). The ΔADC(%) of the second week in combination with histology resulted in the highest c-statistic for the prediction of pCR versus non-pCR (0.87). The c-statistic of this model increased to 0.97 after additional exclusion of patients with a small tumor volume (< 7 mL, n = 3) and tumor histology of the resection specimen other than adenocarcinoma or squamous cell carcinoma (n = 1). CONCLUSION The relative change in tumor ADC (ΔADC(%)) during the first 2 weeks of nCRT is the most predictive for pathologic complete response to nCRT in esophageal cancer patients. KEY POINTS • DW-MRI during the second week of neoadjuvant chemoradiotherapy is most predictive for pathologic complete response in esophageal cancer. • A model including ΔADCweek 2was able to discriminate between pathologic complete responders and non-pathologic complete responders in 87%. • Improvements in future MRI studies for esophageal cancer may be obtained by incorporating motion management techniques.
Collapse
Affiliation(s)
- Alicia S Borggreve
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands.
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands.
| | - Sophie E Heethuis
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Mick R Boekhoff
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Lucas Goense
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Peter S N van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Astrid L H M W van Lier
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Richard van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Jan J W Lagendijk
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Stella Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands.
| |
Collapse
|
33
|
Defize IL, van Hillegersberg R, Mook S, Meijer GJ, Lin SH, Ruurda JP, van Rossum PSN. Restaging after chemoradiotherapy for locally advanced esophageal cancer. Ann Transl Med 2019; 7:S288. [PMID: 32016007 DOI: 10.21037/atm.2019.11.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ingmar L Defize
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Stella Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Steven H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter S N van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
34
|
Vollenbrock SE, Nowee ME, Voncken FE, Kotte AN, Goense L, van Rossum PS, van Lier AL, Heijmink SW, Bartels-Rutten A, Wessels FJ, Aleman BM, Dewit L, Kerkmeijer LG, Jansen EP, Intven M, Lips IM, Meijer GJ, Nijkamp J. Gross Tumor Delineation in Esophageal Cancer on MRI Compared With 18F-FDG-PET/CT. Adv Radiat Oncol 2019; 4:596-604. [PMID: 31673653 PMCID: PMC6817537 DOI: 10.1016/j.adro.2019.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 12/29/2022] Open
Abstract
PURPOSE Current delineation of the gross tumor volume (GTV) in esophageal cancer relies on computed tomography (CT) and combination with 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET). There is increasing interest in integrating magnetic resonance imaging (MRI) in radiation treatment, which can potentially obviate CT- or FDG-PET/CT-based delineation. The aim of this study is to evaluate the feasibility of target delineation on T2-weighted (T2W) MRI and T2W including diffusion-weighted MRI (T2W + DW-MRI) compared with current-practice FDG-PET/CT. METHODS Ten observers delineated primary esophageal tumor GTVs of 6 patients on FDG-PET/CT, T2W-MRI, and T2W + DW-MRI. GTVs, generalized conformity indices, in-slice delineation variation (root mean square), and standard deviations in the position of the most cranial and caudal delineated slice were calculated. RESULTS Delineations on MRI showed smaller GTVs compared with FDG-PET/CT-based delineations. The main variation was seen at the cranial and caudal border. No differences were observed in conformity indices (FDG-PET/CT, 0.68; T2W-MRI, 0.66; T2W + DW-MRI, 0.68) and in-slice variation (root mean square, 0.13 cm on FDG-PET/CT; 0.10 cm on T2W-MRI; 0.14 cm on T2W + DW-MRI). In the 2 tumors involving the gastroesophageal junction, addition of DW-MRI to T2W-MRI significantly decreased caudal border variation. CONCLUSIONS MRI-based target delineation of the esophageal tumor is feasible with interobserver variability comparable to that with FDG-PET/CT, despite limited experience with delineation on MRI. Most variation was seen at cranial-caudal borders, and addition of DW-MRI to T2W-MRI may reduce caudal delineation variation of gastroesophageal junction tumors.
Collapse
Affiliation(s)
- Sophie E. Vollenbrock
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Marlies E. Nowee
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Francine E.M. Voncken
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alexis N.T.J. Kotte
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lucas Goense
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter S.N. van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Stijn W. Heijmink
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Frank J. Wessels
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Berthe M.P. Aleman
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Luc Dewit
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Linda G.W. Kerkmeijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Edwin P.M. Jansen
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Martijn Intven
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Irene M. Lips
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Gert J. Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jasper Nijkamp
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| |
Collapse
|
35
|
Winkel D, Bol GH, Kroon PS, van Asselen B, Hackett SS, Werensteijn-Honingh AM, Intven MP, Eppinga WS, Tijssen RH, Kerkmeijer LG, de Boer HC, Mook S, Meijer GJ, Hes J, Willemsen-Bosman M, de Groot-van Breugel EN, Jürgenliemk-Schulz IM, Raaymakers BW. Adaptive radiotherapy: The Elekta Unity MR-linac concept. Clin Transl Radiat Oncol 2019; 18:54-59. [PMID: 31341976 PMCID: PMC6630157 DOI: 10.1016/j.ctro.2019.04.001] [Citation(s) in RCA: 309] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND PURPOSE The promise of the MR-linac is that one can visualize all anatomical changes during the course of radiotherapy and hence adapt the treatment plan in order to always have the optimal treatment. Yet, there is a trade-off to be made between the time spent for adapting the treatment plan against the dosimetric gain. In this work, the various daily plan adaptation methods will be presented and applied on a variety of tumour sites. The aim is to provide an insight in the behavior of the state-of-the-art 1.5 T MRI guided on-line adaptive radiotherapy methods. MATERIALS AND METHODS To explore the different available plan adaptation workflows and methods, we have simulated online plan adaptation for five cases with varying levels of inter-fraction motion, regions of interest and target sizes: prostate, rectum, esophagus and lymph node oligometastases (single and multiple target). The plans were evaluated based on the clinical dose constraints and the optimization time was measured. RESULTS The time needed for plan adaptation ranged between 17 and 485 s. More advanced plan adaptation methods generally resulted in more plans that met the clinical dose criteria. Violations were often caused by insufficient PTV coverage or, for the multiple lymph node case, a too high dose to OAR in the vicinity of the PTV. With full online replanning it was possible to create plans that met all clinical dose constraints for all cases. CONCLUSION Daily full online replanning is the most robust adaptive planning method for Unity. It is feasible for specific sites in clinically acceptable times. Faster methods are available, but before applying these, the specific use cases should be explored dosimetrically.
Collapse
Affiliation(s)
- Dennis Winkel
- Department of Radiotherapy, University Medical Center, Utrecht, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Dings JP, Verhamme L, Merkx MA, Xi T, Meijer GJ, Maal TJ. Reliability and accuracy of cone beam computed tomography versus conventional multidetector computed tomography for image-guided craniofacial implant planning: An in vitro study. Int J Oral Maxillofac Implants 2019; 34:665–672. [PMID: 30934042 DOI: 10.11607/jomi.6915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE To assess the reliability and accuracy of linear measurements on three-dimensional (3D) cross-sectional images, both acquired with cone beam computed tomography (CBCT) and multi-detector row CT (MDCT). Bone thickness was evaluated with regard to image-guided planning of craniofacial implant surgery. MATERIALS AND METHODS Five dry human skulls were used. Cuts were made with a circular bone saw at the ideal implant positions in the nasal, orbital, and temporal regions prior to acquisition of CBCT and MDCT scans. After imaging examination, bone width was assessed by three independent observers using a caliper and defined as a reference. In the next step, cross-sectional images of the regions with the aforementioned cuts were reconstructed from 3D virtual models generated from the digital DICOM datasets with the use of 3D image-based planning software. Subsequently, linear measurements were performed. The systematic difference and interobserver and intraobserver variation of MDCT and CBCT linear measurements were compared with the physical measurements at different locations in the nasal, orbital, and temporal region, respectively. Also, the potential influence of different gray-level values was investigated. The quantitative accuracy of distance measurements was performed using a two-way analysis of variance (ANOVA) and variance component analyses. Only differences with P values < .05 were considered significant. RESULTS All radiologic measurements showed a significant overestimation of the bony dimensions, reaching more than the used voxel sizes of 0.3 mm for CBCT and 0.5 mm for MDCT. For CBCT, an average measurement bias of 0.39 to 0.53 mm and for MDCT of 0.57 to 0.59 mm was found. MDCT images showed less interobserver variation in linear measurements on cross-sectional images from 3D virtual models compared with CBCT images. Contrast settings statistically significantly influenced linear measurements of bone width for CBCT images (P < .0015) and interobserver variation on MDCT imaging (P < .029). CONCLUSION Both CBCT images (KaVo 3D eXam Imaging System) and MDCT images (Aquilion ONE, Toshiba) showed a highly consistent submillimeter overestimation of the anatomical truth in assessing bone thickness of nasal, orbital, and temporal regions of ex vivo specimens. When using CBCT and MDCT images for presurgical assessment, one should be aware of the overestimation of the cortical bone thickness.
Collapse
|
37
|
Dings JPJ, Merkx MAW, de Clonie Maclennan-Naphausen MTP, van de Pol P, Maal TJJ, Meijer GJ. Maxillofacial prosthetic rehabilitation: A survey on the quality of life. J Prosthet Dent 2019; 120:780-786. [PMID: 30414646 DOI: 10.1016/j.prosdent.2018.03.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 03/18/2018] [Accepted: 03/19/2018] [Indexed: 11/30/2022]
Abstract
STATEMENT OF PROBLEM Maxillofacial prostheses, especially those supported by endosseous implants, are regarded as a viable, secure treatment for the reconstruction of facial defects to restore quality of life. The long-term quality of life of patients treated with facial prostheses with different retentive systems is unclear. PURPOSE The purpose of this clinical study was to assess the long-term quality of life of patients treated with facial prostheses with different retentive systems over a 14-year period at a Dutch oral and maxillofacial surgery unit. MATERIAL AND METHODS A total of 66 patients with facial prostheses were inventoried and categorized based on anatomic location and type of retention. A 62-item questionnaire was designed to survey the daily prosthetic use, care, quality, durability, longevity, and reliability of retention. Furthermore, issues relating to general satisfaction, self-image, and socialization frequency were addressed. RESULTS Completed validated questionnaires were returned by 52 patients. Of the prosthetic replacements, 23% (n=12) were orbital, 33% (n=17) nasal, and 44% (n=23) auricular prostheses. The survey showed that a prosthetic reconstruction led to high satisfaction scores with regard to wearing comfort, anatomic fit, color, and anatomic form. A significant difference was shown for implant-retained facial prostheses, which provided enhanced retention and increased ease of placement and removal (Fisher exact test P=.01 and P=.04). Patients with nasal prostheses were less satisfied with the junction of their prostheses to the surrounding soft tissue and more aware of others noticing their prosthetic rehabilitation. Patients with auricular defects were less embarrassed (P=.01) by their prostheses. Although auricular prostheses were less frequently cleaned (P=.01), no significant difference was found in minor soft tissue complications between different anatomic locations and the various retentive systems. CONCLUSIONS Implant-retained prostheses have advantages over adhesive-retained prostheses in terms of ease of handling. However, improvements in prosthetic material properties, including color stability and durability, are needed to increase the longevity of facial prostheses.
Collapse
Affiliation(s)
- Jeroen P J Dings
- Oral and Maxillofacial Surgeon, Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| | - Matthias A W Merkx
- Professor, Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | | | - Pascal van de Pol
- Maxillofacial Prosthodontist, Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Thomas J J Maal
- Coordinator 3D Laboratory, Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Gert J Meijer
- Professor, Department of Implantology and Periodontology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
38
|
Borggreve AS, Goense L, Brenkman HJF, Mook S, Meijer GJ, Wessels FJ, Verheij M, Jansen EPM, van Hillegersberg R, van Rossum PSN, Ruurda JP. Imaging strategies in the management of gastric cancer: current role and future potential of MRI. Br J Radiol 2019; 92:20181044. [PMID: 30789792 DOI: 10.1259/bjr.20181044] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Accurate preoperative staging of gastric cancer and the assessment of tumor response to neoadjuvant treatment is of importance for treatment and prognosis. Current imaging techniques, mainly endoscopic ultrasonography (EUS), computed tomography (CT) and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET), have their limitations. Historically, the role of magnetic resonance imaging (MRI) in gastric cancer has been limited, but with the continuous technical improvements, MRI has become a more potent imaging technique for gastrointestinal malignancies. The accuracy of MRI for T- and N-staging of gastric cancer is similar to EUS and CT, making MRI a suitable alternative to other imaging strategies. There is limited evidence on the performance of MRI for M-staging of gastric cancer specifically, but MRI is widely used for diagnosing liver metastases and shows potential for diagnosing peritoneal seeding. Recent pilot studies showed that treatment response assessment as well as detection of lymph node metastases and systemic disease might benefit from functional MRI (e.g. diffusion weighted imaging and dynamic contrast enhancement). Regarding treatment guidance, additional value of MRI might be expected from its role in better defining clinical target volumes and setup verification with MR-guided radiation treatment.
Collapse
Affiliation(s)
- Alicia S Borggreve
- 1 Department of Surgery, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands.,2 Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Lucas Goense
- 1 Department of Surgery, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands.,2 Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Hylke J F Brenkman
- 1 Department of Surgery, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Stella Mook
- 2 Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Gert J Meijer
- 2 Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Frank J Wessels
- 3 Department of Radiology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Marcel Verheij
- 4 Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek (NKI-AVL) , Amsterdam , Netherlands
| | - Edwin P M Jansen
- 4 Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek (NKI-AVL) , Amsterdam , Netherlands
| | - Richard van Hillegersberg
- 1 Department of Surgery, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Peter S N van Rossum
- 2 Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| | - Jelle P Ruurda
- 1 Department of Surgery, University Medical Center Utrecht, Utrecht University , Utrecht , Netherlands
| |
Collapse
|
39
|
Vollenbrock SE, Voncken FEM, van Dieren JM, Lambregts DMJ, Maas M, Meijer GJ, Goense L, Mook S, Hartemink KJ, Snaebjornsson P, Ter Beek LC, Verheij M, Aleman BMP, Beets-Tan RGH, Bartels-Rutten A. Diagnostic performance of MRI for assessment of response to neoadjuvant chemoradiotherapy in oesophageal cancer. Br J Surg 2019; 106:596-605. [PMID: 30802305 PMCID: PMC6594024 DOI: 10.1002/bjs.11094] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/12/2018] [Accepted: 11/26/2018] [Indexed: 01/03/2023]
Abstract
Background Patients with a pathological complete response (pCR) after neoadjuvant chemoradiotherapy (nCRT) for oesophageal cancer may benefit from non‐surgical management. The aim of this study was to determine the diagnostic performance of visual response assessment of the primary tumour after nCRT on T2‐weighted (T2W) and diffusion‐weighted (DW) MRI. Methods Patients with locally advanced oesophageal cancer who underwent T2W‐ and DW‐MRI (1·5 T) before and after nCRT in two hospitals, between July 2013 and September 2017, were included in this prospective study. Three radiologists evaluated T2W images retrospectively using a five‐point score for the assessment of residual tumour in a blinded manner and immediately rescored after adding DW‐MRI. Histopathology of the resection specimen was used as the reference standard; ypT0 represented a pCR. Sensitivity, specificity, area under the receiver operating characteristic (ROC) curve (AUC) and interobserver agreement were calculated. Results Twelve of 51 patients (24 per cent) had a pCR. The sensitivity and specificity of T2W‐MRI for detection of residual tumour ranged from 90 to 100 and 8 to 25 per cent respectively. Respective values for T2W + DW‐MRI were 90–97 and 42–50 per cent. AUCs for the three readers were 0·65, 0·66 and 0·68 on T2W‐MRI, and 0·71, 0·70 and 0·70 on T2W + DW‐MRI (P = 0·441, P = 0·611 and P = 0·828 for readers 1, 2 and 3 respectively). The κ value for interobserver agreement improved from 0·24–0·55 on T2W‐MRI to 0·55–0·71 with DW‐MRI. Conclusion Preoperative assessment of residual tumour on MRI after nCRT for oesophageal cancer is feasible with high sensitivity, reflecting a low chance of missing residual tumour. However, the specificity was low; this results in overstaging of complete responders as having residual tumour and, consequently, overtreatment.
Collapse
Affiliation(s)
- S E Vollenbrock
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands.,GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - F E M Voncken
- Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - J M van Dieren
- Department of Gastrointestinal Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - D M J Lambregts
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - M Maas
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - L Goense
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, the Netherlands.,Department of Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - S Mook
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - K J Hartemink
- Department of Surgery, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - P Snaebjornsson
- Department of Pathology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - L C Ter Beek
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - M Verheij
- Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - B M P Aleman
- Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - R G H Beets-Tan
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands.,GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - A Bartels-Rutten
- Department of Radiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| |
Collapse
|
40
|
Dings JPJ, Verhamme L, Maal TJJ, Merkx MAW, Meijer GJ. Reliability and accuracy of skin-supported surgical templates for computer-planned craniofacial implant placement, a comparison between surgical templates: With and without bony fixation. J Craniomaxillofac Surg 2019; 47:977-983. [PMID: 30905534 DOI: 10.1016/j.jcms.2019.01.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 12/17/2018] [Accepted: 01/23/2019] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION The purpose is to determine the accuracy of guided implant placement in the orbital, nasal, and auricular region using computer-aided designed stereolithographic skin-supported surgical templates with and without bone fixation pins. MATERIALS AND METHODS Preoperatively, cone-beam CT (CBCT) and multiple detector computed tomography (MDCT) scans were acquired from 10 cadaver heads, followed by virtual planning of implants in the orbital margin, auricular region and nasal floor. Surgical skin-supported templates were digitally designed to allow flapless implant placement. Fixation pins were used for stabilization comprising half of all templates in predetermined bone areas. The accuracy of the surgical templates was validated by comparing the achieved implant location to its virtual planned implant position by calculating the linear and angular deviations. RESULTS Surgical templates with the use of bone fixation pins produced statistically significant greater implant deviations as compared to the non-fixated surgical templates. CONCLUSION The results of this study indicate that significant deviation has to be taken into account when placing cranio-maxillofacial implants using skin-supported surgical templates. Surprisingly, the use of bone-fixated pins worsened the accuracy.
Collapse
Affiliation(s)
- J P J Dings
- Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands.
| | - L Verhamme
- 3D Lab, Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - T J J Maal
- 3D Lab, Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - M A W Merkx
- Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - G J Meijer
- Dept of Implantology and Periodontology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| |
Collapse
|
41
|
Goense L, Merrell KW, Arnett AL, Hallemeier CL, Meijer GJ, Ruurda JP, Hofstetter WL, van Hillegersberg R, Lin SH. Validation of a Nomogram Predicting Survival After Trimodality Therapy for Esophageal Cancer. Ann Thorac Surg 2018; 106:1541-1547. [DOI: 10.1016/j.athoracsur.2018.05.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/18/2018] [Accepted: 05/21/2018] [Indexed: 02/07/2023]
|
42
|
Borggreve AS, Mook S, Verheij M, Mul VEM, Bergman JJ, Bartels-Rutten A, Ter Beek LC, Beets-Tan RGH, Bennink RJ, van Berge Henegouwen MI, Brosens LAA, Defize IL, van Dieren JM, Dijkstra H, van Hillegersberg R, Hulshof MC, van Laarhoven HWM, Lam MGEH, van Lier ALHMW, Muijs CT, Nagengast WB, Nederveen AJ, Noordzij W, Plukker JTM, van Rossum PSN, Ruurda JP, van Sandick JW, Weusten BLAM, Voncken FEM, Yakar D, Meijer GJ. Preoperative image-guided identification of response to neoadjuvant chemoradiotherapy in esophageal cancer (PRIDE): a multicenter observational study. BMC Cancer 2018; 18:1006. [PMID: 30342494 PMCID: PMC6195948 DOI: 10.1186/s12885-018-4892-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/03/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Nearly one third of patients undergoing neoadjuvant chemoradiotherapy (nCRT) for locally advanced esophageal cancer have a pathologic complete response (pCR) of the primary tumor upon histopathological evaluation of the resection specimen. The primary aim of this study is to develop a model that predicts the probability of pCR to nCRT in esophageal cancer, based on diffusion-weighted magnetic resonance imaging (DW-MRI), dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and 18F-fluorodeoxyglucose positron emission tomography with computed tomography (18F-FDG PET-CT). Accurate response prediction could lead to a patient-tailored approach with omission of surgery in the future in case of predicted pCR or additional neoadjuvant treatment in case of non-pCR. METHODS The PRIDE study is a prospective, single arm, observational multicenter study designed to develop a multimodal prediction model for histopathological response to nCRT for esophageal cancer. A total of 200 patients with locally advanced esophageal cancer - of which at least 130 patients with adenocarcinoma and at least 61 patients with squamous cell carcinoma - scheduled to receive nCRT followed by esophagectomy will be included. The primary modalities to be incorporated in the prediction model are quantitative parameters derived from MRI and 18F-FDG PET-CT scans, which will be acquired at fixed intervals before, during and after nCRT. Secondary modalities include blood samples for analysis of the presence of circulating tumor DNA (ctDNA) at 3 time-points (before, during and after nCRT), and an endoscopy with (random) bite-on-bite biopsies of the primary tumor site and other suspected lesions in the esophagus as well as an endoscopic ultrasonography (EUS) with fine needle aspiration of suspected lymph nodes after finishing nCRT. The main study endpoint is the performance of the model for pCR prediction. Secondary endpoints include progression-free and overall survival. DISCUSSION If the multimodal PRIDE concept provides high predictive performance for pCR, the results of this study will play an important role in accurate identification of esophageal cancer patients with a pCR to nCRT. These patients might benefit from a patient-tailored approach with omission of surgery in the future. Vice versa, patients with non-pCR might benefit from additional neoadjuvant treatment, or ineffective therapy could be stopped. TRIAL REGISTRATION The article reports on a health care intervention on human participants and was prospectively registered on March 22, 2018 under ClinicalTrials.gov Identifier: NCT03474341 .
Collapse
Affiliation(s)
- A S Borggreve
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. .,Department of Surgical Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
| | - S Mook
- Department of Surgical Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - M Verheij
- Department of Radiation Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - V E M Mul
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - J J Bergman
- Department of Gastroenterology, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - A Bartels-Rutten
- Department of Radiology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - L C Ter Beek
- Department of Radiology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - R G H Beets-Tan
- Department of Radiology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - R J Bennink
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - M I van Berge Henegouwen
- Department of Surgical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - L A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - I L Defize
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.,Department of Surgical Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - J M van Dieren
- Department of Gastroenterology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - H Dijkstra
- Department of Radiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - R van Hillegersberg
- Department of Surgical Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - M C Hulshof
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - H W M van Laarhoven
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - M G E H Lam
- Department of Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - A L H M W van Lier
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - C T Muijs
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - W B Nagengast
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - A J Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - W Noordzij
- Department of Nuclear Medicine, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - J T M Plukker
- Department of Surgical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - P S N van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - J P Ruurda
- Department of Surgical Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - J W van Sandick
- Department of Surgical Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - B L A M Weusten
- Department of Gastroenterology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - F E M Voncken
- Department of Radiation Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - D Yakar
- Department of Radiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GW, Groningen, The Netherlands
| | - G J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | | |
Collapse
|
43
|
Kerkmeijer LGW, Maspero M, Meijer GJ, van der Voort van Zyp JRN, de Boer HCJ, van den Berg CAT. Magnetic Resonance Imaging only Workflow for Radiotherapy Simulation and Planning in Prostate Cancer. Clin Oncol (R Coll Radiol) 2018; 30:692-701. [PMID: 30244830 DOI: 10.1016/j.clon.2018.08.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 06/29/2018] [Accepted: 08/21/2018] [Indexed: 01/06/2023]
Abstract
Magnetic resonance imaging (MRI) is often combined with computed tomography (CT) in prostate radiotherapy to optimise delineation of the target and organs-at-risk (OAR) while maintaining accurate dose calculation. Such a dual-modality workflow requires two separate imaging sessions, and it has some fundamental and logistical drawbacks. Due to the availability of new MRI hardware and software solutions, CT examinations can be omitted for prostate radiotherapy simulations. All information for treatment planning, including electron density maps and bony anatomy, can nowadays be obtained with MRI. Such an MRI-only simulation workflow reduces delineation ambiguities, eases planning logistics, and improves patient comfort; however, careful validation of the complete MRI-only workflow is warranted. The first institutes are now adopting this MRI-only workflow for prostate radiotherapy. In this article, we will review technology and workflow requirements for an MRI-only prostate simulation workflow.
Collapse
Affiliation(s)
- L G W Kerkmeijer
- Department of Radiotherapy, University Medical Center Utrecht, The Netherlands.
| | - M Maspero
- Department of Radiotherapy, University Medical Center Utrecht, The Netherlands
| | - G J Meijer
- Department of Radiotherapy, University Medical Center Utrecht, The Netherlands
| | | | - H C J de Boer
- Department of Radiotherapy, University Medical Center Utrecht, The Netherlands
| | - C A T van den Berg
- Department of Radiotherapy, University Medical Center Utrecht, The Netherlands
| |
Collapse
|
44
|
Heethuis SE, Goense L, van Rossum PSN, Borggreve AS, Mook S, Voncken FEM, Bartels-Rutten A, Aleman BMP, van Hillegersberg R, Ruurda JP, Meijer GJ, Lagendijk JJW, van Lier ALHMW. DW-MRI and DCE-MRI are of complementary value in predicting pathologic response to neoadjuvant chemoradiotherapy for esophageal cancer. Acta Oncol 2018; 57:1201-1208. [PMID: 29781342 DOI: 10.1080/0284186x.2018.1473637] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE To explore the potential benefit and complementary value of a multiparametric approach using diffusion-weighted (DW-) and dynamic contrast-enhanced (DCE-) magnetic resonance imaging (MRI) for prediction of response to neoadjuvant chemoradiotherapy (nCRT) in esophageal cancer. MATERIAL AND METHODS Forty-five patients underwent both DW-MRI and DCE-MRI prior to nCRT (pre), during nCRT (week 2-3) (per) and after completion of nCRT, but prior to esophagectomy (post). Subsequently, histopathologic tumor regression grade (TRG) was assessed. Tumor apparent diffusion coefficient (ADC) and area-under-the-concentration time curve (AUC) were calculated for DW-MRI and DCE-MRI, respectively. The ability of these parameters to predict pathologic complete response (pCR, TRG1) or good response (GR, TRG ≤ 2) to nCRT was assessed. Furthermore the complementary value of DW-MRI and DCE-MRI was investigated. RESULTS GR was found in 22 (49%) patients, of which 10 (22%) patients showed pCR. For DW-MRI, the 75th percentile (P75) ΔADCpost-pre was most predictive for GR (c-index = 0.75). For DCE-MRI, P90 ΔAUCper-pre was most predictive for pCR (c-index = 0.79). Multivariable logistic regression analyses showed complementary value when combining DW-MRI and DCE-MRI for pCR prediction (c-index = 0.89). CONCLUSIONS Both DW-MRI and DCE-MRI are promising in predicting response to nCRT in esophageal cancer. Combining both modalities provides complementary information, resulting in a higher predictive value.
Collapse
Affiliation(s)
- Sophie E. Heethuis
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lucas Goense
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | | | - Alicia S. Borggreve
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Stella Mook
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Francine E. M. Voncken
- Department of Radiotherapy, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
| | - Annemarieke Bartels-Rutten
- Department of Radiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
| | - Berthe M. P. Aleman
- Department of Radiotherapy, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
| | | | - Jelle P. Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gert J. Meijer
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | - Jan J. W. Lagendijk
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands
| | | |
Collapse
|
45
|
Heerkens HD, van Vulpen M, Erickson B, Reerink O, Intven MP, van den Berg CA, Molenaar IQ, Vleggaar FP, Meijer GJ. MRI guided stereotactic radiotherapy for locally advanced pancreatic cancer. Br J Radiol 2018; 91:20170563. [PMID: 30063383 DOI: 10.1259/bjr.20170563] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE: We want to explore the safety and technical feasibility of MRI-guided stereotactic radiotherapy for locally advanced pancreatic cancer. METHODS: A custom-made abdominal corset was manufactured to reduce breathing induced tumour motion. Delineation of the tumour and organs at risk (OARs) was performed on CT and multiparametric MRI. Tumour motion was quantified with cine MRI. After treatment planning, the static dose distribution was convolved with the cine MRI-based motion trajectory to simulate the delivered dose to the tumour and OARs. Stereotactic body radiation therapy (SBRT) was carried out up to a dose of 24 G in three fractions in 1 week. RESULTS: From July 2013 to January 2016, 20 patients were included. Tumours and OARs were clearly visible with contrast-enhanced CT and MRI. After simulation of the delivered dose taking the motion into account, an adequate target coverage was achieved with acceptable dose in the OARs. No Grade3 or higher treatment related toxicity was observed. CONCLUSION: MRI-guided SBRT for pancreatic cancer is technical feasible and safe, with no treatment related grade ≥3 toxicity. New strategies are applied, including an individual corset to reduce breathing motion, MRI-based delineation and simulation of motion-integrated dose distributions. ADVANCES IN KNOWLEDGE: This article is the first to describe an MRI-integrated workflow in SBRT for locally advanced pancreatic cancer. In addition, it demonstrated that SBRT with an abdominal corset to reduce tumour motion is feasible and safe. TRIAL REGISTRATION: This trial was registered at www.clinicaltrials.gov (NCT01898741) on July 9, 2013.
Collapse
Affiliation(s)
- Hanne D Heerkens
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , The Netherlands
| | - Marco van Vulpen
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , The Netherlands.,2 Department of Radiation Oncology, Holland Particle Therapy Centre , Delft , The Netherlands
| | - Beth Erickson
- 3 Department of Radiation Oncology, Medical College of Wisconsin , Milwaukee, WI , USA
| | - Onne Reerink
- 4 Department of Radiation Oncology, Isala Clinic , Zwolle , The Netherlands
| | - Martijn Pw Intven
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , The Netherlands
| | - Cornelis At van den Berg
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , The Netherlands
| | - I Quintus Molenaar
- 5 Department of Surgery, University Medical Center Utrecht , Utrecht , The Netherlands
| | - Frank P Vleggaar
- 6 Department of Gastroenterology, University Medical Center Utrecht , Utrecht , The Netherlands
| | - Gert J Meijer
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , The Netherlands
| |
Collapse
|
46
|
Heethuis SE, Borggreve AS, Goense L, van Rossum PSN, Mook S, van Hillegersberg R, Ruurda JP, Meijer GJ, Lagendijk JJW, van Lier ALHMW. Quantification of variations in intra-fraction motion of esophageal tumors over the course of neoadjuvant chemoradiotherapy based on cine-MRI. ACTA ACUST UNITED AC 2018; 63:145019. [DOI: 10.1088/1361-6560/aacfb5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
47
|
Goense L, Ruurda JP, Carter BW, Fang P, Ho L, Meijer GJ, van Hillegersberg R, Hofstetter WL, Lin SH. Prediction and diagnosis of interval metastasis after neoadjuvant chemoradiotherapy for oesophageal cancer using 18F-FDG PET/CT. Eur J Nucl Med Mol Imaging 2018; 45:1742-1751. [PMID: 29663014 PMCID: PMC6097755 DOI: 10.1007/s00259-018-4011-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/06/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE During neoadjuvant chemoradiotherapy for oesophageal cancer, or in the interval prior to surgery, some patients develop systemic metastasis. This study aimed to evaluate the diagnostic performance of 18F-FDG PET/CT for the detection of interval metastasis and to identify predictors of interval metastases in a large cohort of oesophageal cancer patients. METHODS In total, 783 consecutive patients with potentially resectable oesophageal cancer who underwent chemoradiotherapy and pre- and post-treatment 18F-FDG PET/CT between 2006 and 2015 were analyzed from a prospectively maintained database. Diagnostic accuracy measures were calculated on a per-patient basis using histological verification or clinical follow-up as a reference standard. Multivariable logistic regression analysis was performed to determine pre-treatment predictors of interval metastasis. A prediction score was developed to predict the probability of interval metastasis. RESULTS Of 783 patients that underwent 18F-FDG PET/CT restaging, 65 (8.3%) were found to have interval metastasis and 44 (5.6%) were deemed to have false positive lesions. The resulting sensitivity and specificity was 74.7% (95% CI: 64.3-83.4%) and 93.7% (95% CI: 91.6-95.4%), respectively. Multivariable analysis revealed that tumor length, cN status, squamous cell tumor histology, and baseline SUVmax were associated with interval metastasis. Based on these criteria, a prediction score was developed with an optimism adjusted C-index of 0.67 that demonstrated accurate calibration. CONCLUSIONS 18F-FDG PET/CT restaging detects distant interval metastases in 8.3% of patients after chemoradiotherapy for oesophageal cancer. The provided prediction score may stratify risk of developing interval metastasis, and could be used to prioritize additional restaging modalities for patients most likely to benefit.
Collapse
Affiliation(s)
- Lucas Goense
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA. .,Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. .,Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Brett W Carter
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Penny Fang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Linus Ho
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | | | - Wayne L Hofstetter
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Steven H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
| |
Collapse
|
48
|
Goense L, Meziani J, Borggreve AS, van Rossum PS, Meijer GJ, Ruurda JP, van Hillegersberg R, Weusten BL. Role of adjuvant chemoradiotherapy after endoscopic treatment of early-stage esophageal cancer: a systematic review. MINERVA CHIR 2018; 73:428-436. [PMID: 29658684 DOI: 10.23736/s0026-4733.18.07763-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Esophagectomy combined with lymphadenectomy is currently recommended for patients with high-risk early-stage esophageal cancer after endoscopic treatment (i.e. submucosal tumor invasion [sm2-3], presence of lymphovascular invasion and/or poor tumor differentiation) given the high risk of lymph node metastases. Unfortunately, some patients do not have the physiologic capability to endure surgery. For these patients chemoradiotherapy (CRT) following endoscopic treatment could be an alternative. The aim of this systematic review was to evaluate the evidence on the safety and efficacy of endoscopic treatment combined with CRT in patients with high-risk early-stage esophageal cancer. EVIDENCE ACQUISITION A systematic literature search was performed to identify studies reporting on the safety and efficacy of CRT following endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD) in patients with esophageal cancer invading the muscularis mucosae or submucosa. Primary outcomes were locoregional recurrence (LRR), disease-free survival (DFS) and overall survival (OS). The secondary outcome was the occurrence of treatment-related adverse events. EVIDENCE SYNTHESIS Six studies were included, comprising a total of 168 patients with early-stage esophageal cancer that underwent endoscopic treatment followed by CRT. Most studies were retrospective case series and included small numbers of patients (11 to 66). All patients had T1a(m3) or T1b(sm1-3) esophageal squamous cell carcinoma. Adjuvant treatment consisted of cisplatin and 5-fluorouracil with concurrent radiotherapy; doses ranging from 40 to 60 Gy. The overall LRR rate ranged between 0-9%. Reported 3-year DFS and OS rates ranged between 69-100% and 87-100%, respectively. In all studies ESD and/or EMR was safely performed without serious complications. The observed CRT treatment-related toxicity (grade ≥3) ranged between 0% and 32%. CONCLUSIONS This review demonstrates that the current available literature lacks large prospective adequately powered studies and does not allow any firm conclusion regarding the role of endoscopic treatment combined with adjuvant CRT for patients with high-risk early-stage esophageal cancer.
Collapse
Affiliation(s)
- Lucas Goense
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jihane Meziani
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Alicia S Borggreve
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter S van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Bas L Weusten
- Department of Gastroenterology, University Medical Center Utrecht, Utrecht, The Netherlands -
| |
Collapse
|
49
|
Goense L, van Rossum PSN, Xi M, Maru DM, Carter BW, Meijer GJ, Ho L, van Hillegersberg R, Hofstetter WL, Lin SH. Preoperative Nomogram to Risk Stratify Patients for the Benefit of Trimodality Therapy in Esophageal Adenocarcinoma. Ann Surg Oncol 2018; 25:1598-1607. [PMID: 29569125 PMCID: PMC5928173 DOI: 10.1245/s10434-018-6435-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Indexed: 12/23/2022]
Abstract
Purpose To develop a nomogram that estimates 1-year recurrence-free survival (RFS) after trimodality therapy for esophageal adenocarcinoma and to assess the overall survival (OS) benefit of esophagectomy after chemoradiotherapy (CRT) on the basis of 1-year recurrence risk. Methods In total, 568 consecutive patients with potentially resectable esophageal adenocarcinoma who underwent CRT were included for analysis, including 373 patients who underwent esophagectomy after CRT (trimodality therapy), and 195 who did not undergo surgery (bimodality therapy). A nomogram for 1-year RFS was created using a Cox regression model. The upper tertile of the nomogram score was used to stratify patients in low-risk and high-risk groups for 1-year recurrence. The 5-year OS was compared between trimodality and bimodality therapy in low-risk and high-risk patients after propensity score matching, respectively. Results Median follow-up for the entire cohort was 62 months. The 5-year OS in the trimodality and bimodality treatment groups was 56.3% (95% confidence interval [CI] 47.9–64.7) and 36.9% (95% CI 31.4–42.4), respectively. The final nomogram for the prediction of 1-year RFS included male gender, poor histologic grade, signet ring cell adenocarcinoma, cN1, cN2-3, and baseline SUVmax, with accurate calibration and reasonable discrimination (C-statistic: 0.66). Trimodality therapy was associated with improved 5-year OS in low-risk patients (p = 0.003), whereas it showed no significant survival benefit in high-risk patients (p = 0.302). Conclusions The proposed nomogram estimates early recurrence risk. The addition of surgery to CRT provides a clear OS benefit in low-risk patients. The OS benefit of surgery in high-risk patients is less pronounced. Electronic supplementary material The online version of this article (10.1245/s10434-018-6435-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Lucas Goense
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands. .,Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Peter S N van Rossum
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Mian Xi
- Department of Radiation Oncology, Cancer Center, Sun Yat-Sen University, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, Guandong, China
| | - Dipen M Maru
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Brett W Carter
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gert J Meijer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Linus Ho
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Wayne L Hofstetter
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Steven H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| |
Collapse
|
50
|
Goense L, Borggreve AS, Heethuis SE, van Lier AL, van Hillegersberg R, Mook S, Meijer GJ, van Rossum PSN, Ruurda JP. Patient perspectives on repeated MRI and PET/CT examinations during neoadjuvant treatment of esophageal cancer. Br J Radiol 2018; 91:20170710. [PMID: 29498535 DOI: 10.1259/bjr.20170710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The perceived burden of diagnostic tests by patients during the assessment of esophageal cancer warrants attention with the current increase in repeated imaging for purposes of disease monitoring during and after treatment. The purpose of this prospective study was to evaluate the experienced burden associated with repeated MRI and positron emission tomography with integrated CT (PET/CT) examinations during neoadjuvant treatment for esophageal cancer from the perspective of the patient. METHODS In 27 patients receiving neoadjuvant chemoradiotherapy (nCRT) for esophageal cancer MRI and PET/CT examinations were performed before nCRT, during nCRT and before surgery. The experienced burden during repeated MRI and PET/CT examinations was evaluated with a self-report questionnaire addressing discomfort, pain, anxiety and embarrassment, each measured on a 5-point Likert scale (1 = none; up to 5 = very much). In addition, a comparative assessment was used to rank MRI, PET/CT and baseline endoscopy. RESULTS All scans were performed without the occurrence of an adverse event. Few patients experienced discomfort (mean score ±SD: 1.9 ± 1.0 for MRI vs 2.0 ± 1.0 for PET/CT, p = 0.586), pain (1.1 ± 0.4 for MRI vs 1.3 ± 0.7 for PET/CT, p = 0.059), anxiety (1.0 ± 0.2 for MRI vs 1.0 ± 0.2 for PET/CT, p = 1.000) and embarrassment (1.0 ± 0 for MRI vs 1.0 ± 0.2 for PET/CT, p = 0.317) during both MRI and PET/CT. Patients preferred MRI over PET/CT (67% vs 22%, respectively, p = 0.023), and MRI over endoscopy (59% vs 19%, respectively, p = 0.027). In the comparison between PET/CT and endoscopy, 59% of patients preferred PET/CT and 26% preferred endoscopy (p = 0.093). CONCLUSION Repeated imaging with both MRI and PET/CT is generally well-tolerated for the assessment of response to treatment in esophageal cancer patients. Shorter acquisition times and altered body positioning during scanning will likely improve patient experience. Advances in knowledge: This paper demonstrates that MRI and PET/CT are generally well-tolerated imaging procedures for the assessment of response to treatment in esophageal cancer patients. When asked to rank different tests, patients preferred MRI over PET/CT and endoscopy.
Collapse
Affiliation(s)
- Lucas Goense
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands.,2 Department of Surgery, University Medical Center Utrecht , Utrecht , Netherlands
| | - Alicia S Borggreve
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands.,2 Department of Surgery, University Medical Center Utrecht , Utrecht , Netherlands
| | - Sophie E Heethuis
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Astrid Lhmw van Lier
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands
| | | | - Stella Mook
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Gert J Meijer
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Peter S N van Rossum
- 1 Department of Radiation Oncology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Jelle P Ruurda
- 2 Department of Surgery, University Medical Center Utrecht , Utrecht , Netherlands
| |
Collapse
|