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Katharina Ingenerf M, Karim H, Fink N, Ilhan H, Ricke J, Treitl KM, Schmid-Tannwald C. Apparent diffusion coefficients (ADC) in response assessment of transarterial radioembolization (TARE) for liver metastases of neuroendocrine tumors (NET): a feasibility study. Acta Radiol 2022; 63:877-888. [PMID: 34225464 PMCID: PMC9194807 DOI: 10.1177/02841851211024004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background In patients with hepatic neuroendocrine tumors (NETs) locoregional therapies
such as transarterial radioembolization (TARE) are increasingly applied.
Response evaluation remains challenging and previous studies assessing
response with diffusion-weighted imaging (DWI) have been inconclusive. Purpose To perform a feasibility study to evaluate if response assessment with
quantitative apparent diffusion coefficient (ADC) in patients with liver
metastases of NETs after TARE will be possible. Material and Methods Retrospectively, 43 patients with 120 target lesions who obtained abdominal
magnetic resonance imaging (MRI) with DWI 39±28 days before and 74±46 days
after TARE were included. Intralesional ADC (ADCmin,
ADCmax, and ADCmean) were measured for a maximum
number of three lesions per patient on baseline and post-interventional DWI.
Tumor response was categorized according to RECIST 1.1 and mRECIST. Results TARE resulted in partial remission (PR) in 23% (63%), in stable disease (SD)
in 73% (23%), in progressive disease (PD) in 5% (7%) and in complete
response (CR) in 0% (1%) according to RECIST 1.1 (mRECIST, respectively).
ADC values increased significantly (P<0.005) after TARE
in the PR group whereas there was no significant change in the PD group.
Post-therapeutic ADC values of SD lesions increased significantly when
evaluated by RECIST 1.1 but not if evaluated by mRECIST. Percentual changes
of ADCmean values were slightly higher for responders compared to
non-responders (P<0.05). Conclusion ADC values seem to represent an additional marker for treatment response
evaluation after TARE in patients with secondary hepatic NET. A conclusive
study seems feasible though patient-based evaluation and overall survival
and progression free survival as alternate primary endpoints should be
considered.
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Affiliation(s)
- Maria Katharina Ingenerf
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
| | - Homeira Karim
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
| | - Nicola Fink
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
| | - Harun Ilhan
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Jens Ricke
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
| | - Karla-Maria Treitl
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
| | - Christine Schmid-Tannwald
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, LMU München, Munich, Germany
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Kim J, Kim JY, Lee JH, Sinn DH, Hur MH, Hong JH, Park MK, Cho HJ, Choi NR, Lee YB, Cho EJ, Yu SJ, Kim YJ, Paeng JC, Kim HC, Yi NJ, Lee KW, Suh KS, Hyun D, Kim JM, Yoon JH. Long-Term Outcomes of Transarterial Radioembolization for Large Single Hepatocellular Carcinoma: A Comparison to Resection. J Nucl Med 2021; 63:1215-1222. [PMID: 34887340 DOI: 10.2967/jnumed.121.263147] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
The surgical treatment for large hepatocellular carcinoma (HCC) remains controversial due to a high risk of recurrence after resection. This study aimed to compare long-term outcomes of transarterial radioembolization (TARE) with resection for patients with large HCC. Methods: This retrospective cohort study included a total of 557 patients who were initially treated with either resection (the resection group, n = 500) or TARE (the TARE group, n = 57) for large (≥5 cm) single nodular HCC at two tertiary centers in Korea. Patients with major portal vein tumor thrombosis or extrahepatic metastasis were excluded. The primary endpoint was overall survival (OS), and secondary endpoints were time to progression (TTP), time to intrahepatic progression (TTIP), and safety. Results: The resection group were younger (median, 60 years vs. 69 years) with smaller tumor size (median, 7.0 cm vs. 10.0 cm) (all P<0.05). After baseline characteristics were balanced using inverse probability of treatment weighting (IPTW), the TARE group showed comparable OS (hazard ratio [HR], 0.98; 95% confidence interval [CI], 0.40-2.43; P = 0.97), TTP (HR, 1.10; 95% CI, 0.55-2.20; P = 0.80), and TTIP (HR, 1.45; 95% CI, 0.72-2.93; P = 0.30) to the resection group. TARE was not an independent risk for OS (adjusted-HR, 1.04; 95% CI, 0.42-2.59; P = 0.93), TTP (adjusted-HR, 0.98; 95% CI, 0.50-1.95; P = 0.96), or TTIP (adjusted-HR, 1.30; 95% CI, 0.65-2.58; P = 0.46). The TARE group showed shorter hospital stay and fewer adverse events than the resection group. Conclusion: TARE showed comparable OS, TTP, and TTIP with better safety profile compared to surgical resection for large single nodular HCC.
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Affiliation(s)
- Jihye Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Dong Hyun Sinn
- Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Hee Jin Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Na Ryung Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Jin Chul Paeng
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Hyo Cheol Kim
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Nam-Joon Yi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Dongho Hyun
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
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3
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Gerke O, Ehlers K, Motschall E, Høilund-Carlsen PF, Vach W. PET/CT-Based Response Evaluation in Cancer-a Systematic Review of Design Issues. Mol Imaging Biol 2021; 22:33-46. [PMID: 31016638 DOI: 10.1007/s11307-019-01351-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Positron emission tomography/x-ray computed tomography (PET/CT) has long been discussed as a promising modality for response evaluation in cancer. When designing respective clinical trials, several design issues have to be addressed, especially the number/timing of PET/CT scans, the approach for quantifying metabolic activity, and the final translation of measurements into a rule. It is unclear how well these issues have been tackled in quest of an optimised use of PET/CT in response evaluation. Medline via Ovid and Science Citation Index via Web of Science were systematically searched for articles from 2015 on cancer patients scanned with PET/CT before and during/after treatment. Reports were categorised as being either developmental or evaluative, i.e. focusing on either the establishment or the evaluation of a rule discriminating responders from non-responders. Of 124 included papers, 112 (90 %) were accuracy and/or prognostic studies; the remainder were response-curve studies. No randomised controlled trials were found. Most studies were prospective (62 %) and from single centres (85 %); median number of patients was 38.5 (range 5-354). Most (69 %) of the studies employed only one post-baseline scan. Quantification was mainly based on SUVmax (91 %), while change over time was most frequently used to combine measurements into a rule (79 %). Half of the reports were categorised as developmental, the other half evaluative. Most development studies assessed only one element (35/62, 56 %), most frequently the choice of cut-off points (25/62, 40 %). In summary, the majority of studies did not address the essential open issues in establishing PET/CT for response evaluation. Reasonably sized multicentre studies are needed to systematically compare the many different options when using PET/CT for response evaluation.
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Affiliation(s)
- Oke Gerke
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark. .,Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - Karen Ehlers
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Edith Motschall
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Poul Flemming Høilund-Carlsen
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Werner Vach
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
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4
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Maas M, Beets-Tan R, Gaubert JY, Gomez Munoz F, Habert P, Klompenhouwer LG, Vilares Morgado P, Schaefer N, Cornelis FH, Solomon SB, van der Reijd D, Bilbao JI. Follow-up after radiological intervention in oncology: ECIO-ESOI evidence and consensus-based recommendations for clinical practice. Insights Imaging 2020; 11:83. [PMID: 32676924 PMCID: PMC7366866 DOI: 10.1186/s13244-020-00884-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 05/20/2020] [Indexed: 12/19/2022] Open
Abstract
Interventional radiology plays an important and increasing role in cancer treatment. Follow-up is important to be able to assess treatment success and detect locoregional and distant recurrence and recommendations for follow-up are needed. At ECIO 2018, a joint ECIO-ESOI session was organized to establish follow-up recommendations for oncologic intervention in liver, renal, and lung cancer. Treatments included thermal ablation, TACE, and TARE. In total five topics were evaluated: ablation in colorectal liver metastases (CRLM), TARE in CRLM, TACE and TARE in HCC, ablation in renal cancer, and ablation in lung cancer. Evaluated modalities were FDG-PET-CT, CT, MRI, and (contrast-enhanced) ultrasound. Prior to the session, five experts were selected and performed a systematic review and presented statements, which were voted on in a telephone conference prior to the meeting by all panelists. These statements were presented and discussed at the ECIO-ESOI session at ECIO 2018. This paper presents the recommendations that followed from these initiatives. Based on expert opinions and the available evidence, follow-up schedules were proposed for liver cancer, renal cancer, and lung cancer. FDG-PET-CT, CT, and MRI are the recommended modalities, but one should beware of false-positive signs of residual tumor or recurrence due to inflammation early after the intervention. There is a need for prospective preferably multicenter studies to validate new techniques and new response criteria. This paper presents recommendations that can be used in clinical practice to perform the follow-up of patients with liver, lung, and renal cancer who were treated with interventional locoregional therapies.
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Affiliation(s)
- Monique Maas
- Dept of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Regina Beets-Tan
- Dept of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jean-Yves Gaubert
- Dept of Radiology, CHU Hospital Timone, Marseille, France.,Aix Marseille Univ, LIIE, Marseille, France
| | - Fernando Gomez Munoz
- Dept of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Dept of Radiology, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Paul Habert
- Dept of Radiology, CHU Hospital Timone, Marseille, France.,Aix Marseille Univ, LIIE, Marseille, France
| | | | | | - Niklaus Schaefer
- Dept of Radiology, Lausanne University Hospital, Lausanne, Switzerland
| | | | - Stephen B Solomon
- Dept of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | | | - Jose Ignacio Bilbao
- Dept of Radiology, University Clinic of Navarra, Calle Benjamín de Tudela, 2, 31008, Pamplona, Navarra, Spain.
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Spina JC, Hume I, Pelaez A, Peralta O, Quadrelli M, Garcia Monaco R. Expected and Unexpected Imaging Findings after 90Y Transarterial Radioembolization for Liver Tumors. Radiographics 2020; 39:578-595. [PMID: 30844345 DOI: 10.1148/rg.2019180095] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Transarterial radioembolization (TARE), also called radioembolization or selective internal radiation therapy, is an interventional radiology technique used to treat primary liver tumors and liver metastases. The aim of this therapy is to deliver tumoricidal doses of radiation to liver tumors while selecting a safe radiation dose limit for nontumoral liver and lung tissue. Hence, correct treatment planning is essential to obtaining good results. However, this treatment invariably results in some degree of irradiation of normal liver parenchyma, inducing different radiologic findings that may affect follow-up image interpretation. When evaluating treatment response, the treated area size, tumor necrosis, devascularization, and changes seen at functional MRI must be taken into account. Unlike with other interventional procedures, with TARE, it can take several months for the tumor response to become evident. Ideally, responding lesions will show reduced size and decreased enhancement 3-6 months after treatment. In addition, during follow-up, there are many imaging findings related to the procedure itself (eg, peritumoral edema, inflammation, ring enhancement, hepatic fibrosis, and capsular retraction) that can make image interpretation and response evaluation difficult. Possible complications, either hepatic or extrahepatic, also can occur and include biliary injuries, hepatic abscess, radioembolization-induced liver disease, and radiation pneumonitis or dermatitis. A complete understanding of these possible posttreatment changes is essential for correct radiologic interpretations during the follow-up of patients who have undergone TARE. ©RSNA, 2019.
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Affiliation(s)
- Juan C Spina
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
| | - Isabel Hume
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
| | - Ana Pelaez
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
| | - Oscar Peralta
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
| | - Marcos Quadrelli
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
| | - Ricardo Garcia Monaco
- From the Departments of Radiology (J.C.S., A.P., O.P., M.Q., R.G.M.) and Nuclear Medicine (I.H.), Hospital Italiano, Tte Gral Juan Domingo Perón 4230, C1199ABH CABA, Buenos Aires, Argentina
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Deipolyi AR, England RW, Ridouani F, Riedl CC, Kunin HS, Boas FE, Yarmohammadi H, Sofocleous CT. PET/CT Imaging Characteristics After Radioembolization of Hepatic Metastasis from Breast Cancer. Cardiovasc Intervent Radiol 2019; 43:488-494. [PMID: 31732778 DOI: 10.1007/s00270-019-02375-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/06/2019] [Indexed: 12/15/2022]
Abstract
PURPOSE To define positron emission tomography/computed tomography (PET/CT) imaging characteristics during follow-up of patients with metastatic breast cancer (MBC) treated with yttrium-90 (Y90) radioembolization (RE). MATERIALS AND METHODS From January 2011 to October 2017, 30 MBC patients underwent 38 Y90 glass or resin RE treatments. Pre-RE PET/CT was performed on average 51 days before RE. There were 68 PET/CTs performed after treatment. Response was assessed using modified PERCIST criteria focusing on the hepatic territory treated with RE, normalizing SUVpeak to the mean SUV of liver uninvolved by tumor. An objective response (OR) was defined as a decrease in SUVpeak by at least 30%. RESULTS Of the 68 post-RE scans, 6 were performed at 0-30 days, 15 at 31-60 days, 9 at 61-90 days, 13 at 91-120 days, 14 scans at 121-180 days, and 11 scans at > 180 days after RE. Of the 30 patients, 25 (83%) achieved OR on at least one follow-up. Median survival was 15 months after the first RE administration. Highest response rates occurred at 30-90 days, with over 75% of cases demonstrating OR at that time. After 180 days, OR was seen in only 25%. There was a median TTP of 169 days among responders. CONCLUSION In MBC, follow-up PET/CT after RE demonstrates optimal response rates at 30-90 days, with progression noted after 180 days. These results help to guide the timing of imaging and also to inform patients of expected outcomes after RE.
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Affiliation(s)
- Amy R Deipolyi
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Ryan W England
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Fourat Ridouani
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christopher C Riedl
- Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Henry S Kunin
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - F Edward Boas
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hooman Yarmohammadi
- Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Baseline 3D-ADC outperforms 2D-ADC in predicting response to treatment in patients with colorectal liver metastases. Eur Radiol 2019; 30:291-300. [PMID: 31209620 DOI: 10.1007/s00330-019-06289-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 05/13/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To examine the value of baseline 3D-ADC and to predict short-term response to treatment in patients with hepatic colorectal metastases (CLMs). METHODS Liver MR images of 546 patients with CLMs (2008-2015) were reviewed retrospectively and 68 patients fulfilled inclusion criteria. Patients had received systemic chemotherapy (n = 17), hepatic trans-arterial chemoembolization or TACE (n = 34), and 90Y radioembolization (n = 17). Baseline (pre-treatment) 3D-ADC (volumetric) of metastatic lesions was calculated employing prototype software. RECIST 1.1 was used to assess short-term response to treatment. Prediction of response to treatment by baseline 3D-ADC and 2D-ADC (ROI-based) was also compared in all patients. RESULTS Partial response to treatment (minimum 30% decrease in tumor largest transverse diameter) was seen in 35.3% of patients; 41.2% with systemic chemotherapy, 32.4% with TACE, and 35.3% with 90Y radioembolization (p = 0.82). Median baseline 3D-ADC was significantly lower in responding than in nonresponding lesions. Area under the curve (AUC) of 3D-ADC was 0.90 in 90Y radioembolization patients, 0.88 in TACE patients, and 0.77 in systemic chemotherapy patients (p < 0.01). Optimal prediction was observed with the 10th percentile of ADC (1006 × 10-6 mm2/s), yielding sensitivity and specificity of 77.4% and 91.3%, respectively. 3D-ADC outperformed 2D-ADC in predicting response to treatment (AUC; 0.86 vs. 0.71; p < 0.001). CONCLUSION Baseline 3D-ADC is a highly specific biomarker in predicting partial short-term response to treatment in hepatic CLMs. KEY POINTS • Baseline 3D-ADC is a highly specific biomarker in predicting response to different treatments in hepatic CLMs. • The prediction level of baseline ADC is better for90Y radioembolization than for systemic chemotherapy/TACE in hepatic CLMs. • 3D-ADC outperforms 2D-ADC in predicting short-term response to treatment in hepatic CLMs.
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8
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HITM-SIR: phase Ib trial of intraarterial chimeric antigen receptor T-cell therapy and selective internal radiation therapy for CEA + liver metastases. Cancer Gene Ther 2019; 27:341-355. [PMID: 31155611 DOI: 10.1038/s41417-019-0104-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/27/2019] [Indexed: 02/06/2023]
Abstract
Effective chimeric antigen receptor-modified T-cell (CAR-T) therapy for liver metastases (LM) will require innovative solutions to ensure efficient delivery and minimization of systemic toxicity. We previously demonstrated the safety of CAR-T hepatic artery infusions (HAI). We subsequently conducted the phase 1b HITM-SIR trial, in which six patients (pts) with CEA+ LM received anti-CEA CAR-T HAIs and selective internal radiation therapy (SIRT). The primary endpoint was safety with secondary assessments of biologic activity. Enrolled pts had a mean LM size of 6.4 cm, 4 pts had >10 LM, and pts received an average of two lines of prior systemic therapy. No grade 4 or 5 toxicities were observed, and there were no instances of severe cytokine-release syndrome (CRS) or neurotoxicity. The mean transduction efficiency was 60.4%. Following CAR-T HAI, reduced levels of GM-CSF-R, IDO, and PD-L1 were detected in LM, and serum CEA levels were stable or decreased in all subjects. Median survival time was 8 months (mean 11, range 4-31). Anti-CEA CAR-T HAI with subsequent SIRT was well tolerated, and biologic responses were demonstrated following failure of conventional therapy. HAI of CAR-T was once again confirmed not to be associated with severe CRS or neurotoxicity.
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9
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Alis D, Durmaz ESM, Gulsen F, Bas A, Kabasakal L, Sager S, Numan F. Prognostic value of ADC measurements in predicting overall survival in patients undergoing 90Y radioembolization for colorectal cancer liver metastases. Clin Imaging 2019; 57:124-130. [PMID: 31220677 DOI: 10.1016/j.clinimag.2019.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 05/06/2019] [Accepted: 05/28/2019] [Indexed: 12/14/2022]
Abstract
AIM To assess the ability of diffusion-weighted imaging (DWI) in predicting the overall survival in patients who underwent Yttrium 90 radioembolization (90Y-RE) for colorectal liver metastases (CLM) with other well-established clinical and imaging parameters by comparing the pre- and post-treatment apparent diffusion coefficient (ADC) values of the lesions. METHODS A total of 81 metastatic lesions of 27 consecutive patients who underwent DWI before and after the 90Y-RE session were enrolled in the study. ADC values were calculated from the entire (ADCe) and peripheral (ADCp) tumor on pre- and post-treatment DWI, and any relative increase in ADC >0% accepted as a functional imaging response. The impact of functional imaging response in addition to other well-known parameters including Response Evaluation Criteria in Solid Tumors (RECIST), hepatic tumor burden, Eastern Cooperative Oncology Group performance status (ECOG-PS) and the presence of extrahepatic metastases in predicting overall survival (OS) was assessed using Kaplan-Meier curves and Cox-regression analyses. RESULTS The median OS of the patients was 10 months (range, 6-20 months) while the median OS of the responders being significantly longer than the non-responders for ADCe and ADCp (median 11 vs 7 months, P = 0.003; median 12 vs. 7 months, P < 0.0001, respectively). The RECIST score was also significantly affected the OS (progressive or stable disease median 8 months vs. partial response 15 indent months, P = 0.019). The other parameters including hepatic tumor burden, gender, ECOG score, the involvement of the liver lobes, and the presence of extrahepatic metastases were not associated with the OS. In multivariate analysis, only ADCp remained as an independent predictor of OS (P = 0.003, HR = 19.878). CONCLUSION Any increase in relative ADCp or ADCe values after Y90-RE treatment was associated with longer OS in CLM patients, and DWI seems to be valuable imaging biomarker in predicting OS in CLM patients during the early post-interventional period after 90Y-RE.
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Affiliation(s)
- Deniz Alis
- Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Department of Radiology, Istanbul, Turkey.
| | - Emine Sebnem Memis Durmaz
- Ministry of Health, Buyukcekmece Mimar Sinan Hospital, Buyukcekmece, Department of Radiology, Istanbul, Turkey
| | - Fatih Gulsen
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Department of Interventional Radiology, Fatih, Istanbul, Turkey
| | - Ahmet Bas
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Department of Interventional Radiology, Fatih, Istanbul, Turkey
| | - Levent Kabasakal
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Department of Nuclear Medicine, Fatih, Istanbul, Turkey.
| | - Sait Sager
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Department of Nuclear Medicine, Fatih, Istanbul, Turkey
| | - Furuzan Numan
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Department of Interventional Radiology, Fatih, Istanbul, Turkey
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Ciritsis A, Rossi C, Marcon M, Van VDP, Boss A. Accelerated diffusion-weighted imaging for lymph node assessment in the pelvis applying simultaneous multislice acquisition: A healthy volunteer study. Medicine (Baltimore) 2018; 97:e11745. [PMID: 30095628 PMCID: PMC6133413 DOI: 10.1097/md.0000000000011745] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
To evaluate the feasibility of accelerated simultaneous multislice diffusion weighted sequences (SMS-DWI) for lymph node detection in the abdominopelvic region. Sequences were evaluated regarding the number and depiction of lymph nodes detected with SMS-DWI compared with conventional diffusion weighted sequences, the most suitable SMS- acceleration factor, signal-to-noise ratio (SNR), and the overall acquisition time (TA).Eight healthy volunteers (4 men, 4 women; age range 21-39 years; median age 25 years) were examined in the pelvic region at 3T using a conventional DWI sequence and a SMS DWI sequence with different acceleration factors (AF: 2-3). Moreover, a SMS DWI sequence with AF 3 and higher slice resolution was applied. For morphological correlation of the lymph nodes and as a reference standard, an isotropic 3-dimensional T2-weighted fast-spin-echo sequence with high sampling efficiency (SPACE) was acquired. Two radiologists reviewed each DWI sequence and assessed the number of lymph nodes and the overall image quality. For each DWI sequence, SNR, SNR efficiency per time, contrast to noise (CNR), and ADC values were calculated. Values were statistically compared using a Wilcoxon test (P < .05).Overall, scan time of SMS-DWI with AF2 (AF3) decreased by 46.9% (57.2%) with respect to the conventional DWI. Compared with the SPACE sequence, the detection rate was 89.6% for conventional DWI, 69.4% for SMS-DWI with AF2, and 59.9% for SMS-DWI with AF3. The highly resolved SMS-DWI with AF3 leads to a scan time reduction of 46.9% and detection rate of 83.0%. SNR and CNR were lower in the accelerated sequences (up to 51.0%, P < .001) as compared with the conventional DWI. SNR efficiency decreased to 19.3% for AF2 and to 31.3% for AF3. In the highly resolved dataset, an SNR efficiency reduction of 51.2% was found.This study showed that lymph node detection in the abdominopelvic region with accelerated SMS-DWI sequences is feasible whereby an AF of 2 represents the best compromise between image quality, SNR, CNR, TA, and detection rate.
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Intravoxel Incoherent Motion: Model-Free Determination of Tissue Type in Abdominal Organs Using Machine Learning. Invest Radiol 2018; 52:747-757. [PMID: 28742733 DOI: 10.1097/rli.0000000000000400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
PURPOSE For diffusion data sets including low and high b-values, the intravoxel incoherent motion model is commonly applied to characterize tissue. The aim of the present study was to show that machine learning allows a model-free approach to determine tissue type without a priori assumptions on the underlying physiology. MATERIALS AND METHODS In 8 healthy volunteers, diffusion data sets were acquired using an echo-planar imaging sequence with 16 b-values in the range between 0 and 1000 s/mm. Using the k-nearest neighbors technique, the machine learning algorithm was trained to distinguish abdominal organs (liver, kidney, spleen, muscle) using the signal intensities at different b-values as training features. For systematic variation of model complexity (number of neighbors), performance was assessed by calculation of the accuracy and the kappa coefficient (κ). Most important b-values for tissue discrimination were determined by principal component analysis. RESULTS The optimal trade-off between model complexity and overfitting was found in the range between K = 11 to 13. On "real-world" data not previously applied to optimize the algorithm, the k-nearest neighbors algorithm was capable to accurately distinguish tissue types with best accuracy of 94.5% and κ = 0.92 reached for intermediate model complexity (K = 11). The principal component analysis showed that most important b-values are (with decreasing importance): b = 1000 s/mm, b = 970 s/mm, b = 750 s/mm, b = 20 s/mm, b = 620 s/mm, and b = 40 s/mm. Applying a reduced set of 6 most important b-values, still a similar accuracy was achieved on the real-world data set with an average accuracy of 93.7% and a κ coefficient of 0.91. CONCLUSIONS Machine learning allows for a model-free determination of tissue type using intra voxel incoherent motion signal decay curves as features. The technique may be useful for segmentation of abdominal organs or distinction between healthy and pathological tissues.
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Barabasch A, Heinzel A, Bruners P, Kraemer NA, Kuhl CK. Diffusion-weighted MRI Is Superior to PET/CT in Predicting Survival of Patients Undergoing 90Y Radioembolization of Hepatic Metastases. Radiology 2018; 288:764-773. [PMID: 29786487 DOI: 10.1148/radiol.2018170408] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Purpose To determine the relationship between diffusion-weighted (DW) liver MR images obtained 4-6 weeks after lobar yttrium 90 (90Y) treatment and overall survival in comparison with PET/CT or established oncologic factors known to affect survival. Materials and Methods The institutional review board approved this prospective intraindividual comparative study in 36 consecutive patients (25 women) with liver-dominant metastases (20 colorectal, 14 breast, two other) (mean age, 60 years ± 10 [standard deviation]) who underwent fluorine 18 (18F) fluorodeoxyglucose (FDG) PET/CT and DW MRI before and 4-6 weeks after 90Y radioembolization. DW MRI response was defined as a mean minimal apparent diffusion coefficient increase of more than 30%; PET/CT response was defined as a mean maximal standardized uptake value decrease of more than 30%. Kaplan-Meier curves, log-rank test, and multivariable Cox regression analyses were used to compare patient survival as a function of imaging and Response Evaluation Criteria in Solid Tumors (RECIST) response, pretreatment Eastern Cooperative Oncology Group (ECOG) performance status (PS) (0 vs 1), hepatic tumor load (<25% vs ≥25%), and presence versus absence of extrahepatic disease. Results Thirty-five of the 36 patients were observed until death (median survival, 36 weeks). Response was observed with PET/CT in 18 of 36 patients (50%). Median survival was 39 weeks in patients who responded to PET/CT versus 27 weeks in those who did not (P = .60). Response was observed with DW MRI in 24 of 36 patients (67%). Median survival was 53 weeks in DW MRI responders versus 20 weeks in nonresponders (P = .01). At multivariable analysis, DW MRI response was the only independent predictor of survival (P < .01). Response based on RECIST parameters, ECOG PS, hepatic tumor load, and presence of extrahepatic metastases did not correlate with survival. Conclusion In patients with hepatic metastases undergoing 90Y radioembolization, prediction of response to therapy with DW MRI was superior to that with PET/CT and established oncologic factors.
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Affiliation(s)
- Alexandra Barabasch
- From the Departments of Diagnostic and Interventional Radiology (A.B., P.B., N.A.K., C.K.K.) and Nuclear Medicine (A.H.), University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Alexander Heinzel
- From the Departments of Diagnostic and Interventional Radiology (A.B., P.B., N.A.K., C.K.K.) and Nuclear Medicine (A.H.), University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Philipp Bruners
- From the Departments of Diagnostic and Interventional Radiology (A.B., P.B., N.A.K., C.K.K.) and Nuclear Medicine (A.H.), University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Nils A Kraemer
- From the Departments of Diagnostic and Interventional Radiology (A.B., P.B., N.A.K., C.K.K.) and Nuclear Medicine (A.H.), University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Christiane K Kuhl
- From the Departments of Diagnostic and Interventional Radiology (A.B., P.B., N.A.K., C.K.K.) and Nuclear Medicine (A.H.), University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
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Leng F, Liu F, Yang Y, Wu Y, Tian W. Strategies on Nanodiagnostics and Nanotherapies of the Three Common Cancers. NANOMATERIALS 2018; 8:nano8040202. [PMID: 29597315 PMCID: PMC5923532 DOI: 10.3390/nano8040202] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/18/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
Abstract
The emergence of nanomedicine has enriched the knowledge and strategies of treating diseases, and especially some incurable diseases, such as cancers, acquired immune deficiency syndrome (AIDS), and neurodegenerative diseases. The application of nanoparticles in medicine is in the core of nanomedicine. Nanoparticles can be used in drug delivery for improving the uptake of poorly soluble drugs, targeted delivery to a specific site, and drug bioavailability. Early diagnosis of and targeted therapies for cancers can significantly improve patients' quality of life and extend patients' lives. The advantages of nanoparticles have given them a progressively important role in the nanodiagnosis and nanotherapy of common cancers. To provide a reference for the further application of nanoparticles, this review focuses on the recent development and application of nanoparticles in the early diagnosis and treatment of the three common cancers (lung cancer, liver cancer, and breast cancer) by using quantum dots, magnetic nanoparticles, and gold nanoparticles.
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Affiliation(s)
- Fan Leng
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Fang Liu
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Yongtao Yang
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Yu Wu
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Weiqun Tian
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
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Anatomic versus Metabolic Tumor Response Assessment after Radioembolization Treatment. J Vasc Interv Radiol 2018; 29:244-253.e2. [DOI: 10.1016/j.jvir.2017.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/22/2017] [Accepted: 09/25/2017] [Indexed: 02/01/2023] Open
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Aarntzen EH, Heijmen L, Oyen WJ. 18F-FDG PET/CT in Local Ablative Therapies: A Systematic Review. J Nucl Med 2018; 59:551-556. [DOI: 10.2967/jnumed.117.198184] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/13/2017] [Indexed: 12/13/2022] Open
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Lewis H, Ghasabeh M, Khoshpouri P, Kamel I, Pawlik T. Functional hepatic imaging as a biomarker of primary and secondary tumor response to loco-regional therapies. Surg Oncol 2017; 26:411-422. [DOI: 10.1016/j.suronc.2017.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 08/21/2017] [Indexed: 02/06/2023]
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Dendy MS, Ludwig JM, Kim HS. Predictors and prognosticators for survival with Yttrium-90 radioembolization therapy for unresectable colorectal cancer liver metastasis. Oncotarget 2017; 8:37912-37922. [PMID: 28415671 PMCID: PMC5514961 DOI: 10.18632/oncotarget.16007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/27/2017] [Indexed: 02/06/2023] Open
Abstract
This critical review aims to explore predictive and prognostic biomarkers of Yttrium-90 (Y90) radioembolization therapy of colorectal liver metastases. A brief overview of established predictive and prognostic molecular and genetic biomarkers in colorectal cancer therapies will be discussed. A review of the literature on imaging modalities, genetic, metabolic and other molecular markers and the subsequent outcomes in post-Y90 treatment will be presented. How these biomarkers and future biomarker research can inform locoregional treatment decisions in the clinical setting of metastatic colorectal cancer lesions of the liver will be explored. There are opportunities for personalized cancer treatment in the setting of Y90 radioembolization. The ability to predict tumor response after Ytrium-90 radioembolization therapy can greatly impact clinical decision making and enhance treatment outcomes, therefore further research into the field is needed.
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Affiliation(s)
- Meaghan S. Dendy
- Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, Yale School of Medicine, New Haven, CT, USA
| | - Johannes M. Ludwig
- Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, Yale School of Medicine, New Haven, CT, USA
| | - Hyun S. Kim
- Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, Yale School of Medicine, New Haven, CT, USA
- Yale Cancer Center, Yale University, New Haven, CT, USA
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Detection and Viability of Colorectal Liver Metastases After Neoadjuvant Chemotherapy: A Multiparametric PET/CT-MRI Study. Clin Nucl Med 2017; 42:258-263. [PMID: 28166142 DOI: 10.1097/rlu.0000000000001538] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE The aim of this study was to compare combined gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid (Gd-EOB-DTPA)-enhanced and diffusion-weighted (DW) MRI with IV contrast-enhanced F-FDG PET/CT to detect and assess the viability of colorectal liver metastases (CLMs) after neoadjuvant chemotherapy (NAC). PATIENTS AND METHODS After NAC, 45 patients with CLMs were prospectively enrolled and underwent combined Gd-EOB-DTPA-enhanced and DW-MRI and contrast-enhanced F-FDG PET/CT. Forty patients subsequently underwent surgery based on intraoperative ultrasound, which served as the reference standard for the presence of CLMs. The number of metastases detected by each technique was then compared. In 69 resected metastases, the SUVmean and SUVmax, mean and maximum target-to-background ratio (TBR), total lesion glycolysis, metabolic tumor volume, and mean and minimum apparent diffusion coefficient (ADC) were examined to identify correlations with the corresponding tumor viability (TV) determined from histological specimens. RESULTS Intraoperative ultrasound revealed 153 CLMs, 122 of which were resected. The detection rate of MRI and contrast-enhanced F-FDG PET/CT were similar (P = 0.61). The SUVmax and minimum ADC were negatively correlated (r = -0.34, P = 0.005) on preoperative imaging after NAC. However, TV was significantly correlated with the maximum TBR (r = 0.33, P = 0.006) and mean TBR (r = 0.37, P = 0.002), but not with the minimum ADC (r = -0.02, P = 0.9) or mean ADC (r = 0.01, P = 0.9). CONCLUSIONS Combined Gd-EOB-DTPA-enhanced and DW-MRI and contrast-enhanced F-FDG PET/CT allow confident detection of CLMs, but only F-FDG PET metrics are associated with TV after NAC.
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Zimmermann M, Schulze-Hagen M, Liebl M, Pedersoli F, Goerg F, Ulmer TF, Heinzel A, Isfort P, Kuhl C, Bruners P. Safety and Efficacy of Y-90 Radioembolization After Prior Major Hepatic Resection. Cardiovasc Intervent Radiol 2017; 40:1206-1212. [DOI: 10.1007/s00270-017-1629-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 03/15/2017] [Indexed: 12/13/2022]
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Prognostic value of pretreatment diffusion-weighted magnetic resonance imaging for outcome prediction of colorectal cancer liver metastases undergoing 90Y-microsphere radioembolization. J Cancer Res Clin Oncol 2017; 143:1531-1541. [PMID: 28317063 DOI: 10.1007/s00432-017-2395-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/12/2017] [Indexed: 12/15/2022]
Abstract
PURPOSE To investigate the clinical potential of pretreatment apparent diffusion coefficient (ADC) on diffusion-weighted magnetic resonance imaging (DWI) for therapy response and outcome prediction in patients with liver-predominant metastatic colorectal cancer (CRC) undergoing radioembolization with 90Yttrium-microspheres (90Y-RE). METHODS Forty-six consecutive patients with unresectable CRC liver metastases underwent standardized clinical DWI on a 1.5 T MR scanner prior to and 4-6 weeks after 90Y-RE. Pretreatment clinical parameters, ADC values derived from region-of-interest analysis, and the corresponding tumor sizes of three treated liver metastases per subject were recorded. Long-term tumor response to radioembolization was categorized into response (partial remission) and nonresponse (stable disease, progressive disease) according to Response Evaluation Criteria in Solid Tumors v1.1 (RECIST) 3 months after treatment. Associations between long-term tumor response and the clinical and imaging parameters were evaluated. The impact of pretreatment clinical and imaging parameters on progression-free survival (PFS) and overall survival (OS) was further assessed by Kaplan-Meier and multivariate Cox-regression analyses. RESULTS Nonresponders had higher hepatic tumor burden (p = 0.021) and lower ADC values than patients responding to 90Y-RE, both pretreatment (986 ± 215 vs. 1162 ± 178; p = 0.036) and posttreatment (1180 ± 350 vs. 1598 ± 225; p = 0.002). ADC values higher than 935 × 10-6 mm2 (5 vs. 3 months; p = 0.022) and hepatic tumor burden ≤25% (6 vs. 3 months; p = 0.014) were associated with longer median PFS, whereas ADC >935 × 10-6 mm2 (14 vs. 6 months; p = 0.02), hepatic tumor burden ≤25% (14 vs. 6 months; p = 0.048), size of the largest metastasis <4.7 cm (18 vs. 7 months; p = 0.024), and Eastern Cooperative Oncology Group (ECOG) score <1 (8 vs. 5 months; p = 0.045) were associated with longer median OS. On multivariate analysis, ADC >935 × 10-6 mm2 and hepatic tumor burden ≤25% remained prognostic factors for PFS, and ADC >935 × 10-6 mm2 and size of the largest metastasis <4.7 cm were independent predictors of OS. CONCLUSION Pretreatment ADC on DWI represents a valuable prognostic biomarker for predicting both the therapeutic efficacy and survival prognosis in CRC liver metastases treated by 90Y-RE, allowing risk stratification and potentially optimizing further treatment strategies.
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Cliffe H, Patel C, Prestwich R, Scarsbrook A. Radiotherapy response evaluation using FDG PET-CT-established and emerging applications. Br J Radiol 2017; 90:20160764. [PMID: 28008773 DOI: 10.1259/bjr.20160764] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Radiation therapy is a common component of curative cancer treatment. However, there is a significant incidence of treatment failure. In these cases, salvage surgical options are sometimes appropriate. Accurate assessment of response and early recognition of treatment success or failure is therefore critical to guide treatment decisions and impacts on survival and the morbidity of treatment. Traditionally, treatment response has depended upon the anatomical measurement of disease. However, this may not correlate well with the presence of disease, especially after radiotherapy. Combined positron emission tomography (PET) and CT imaging employs radioactive tracers to identify molecular characteristics of tissues. PET imaging exploits the fact that malignancies have characteristic molecular profiles which differ compared with surrounding tissues. The complementary anatomical and functional information facilitates accurate non-invasive assessment of surrogate biomarkers of disease activity.
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Affiliation(s)
- Helen Cliffe
- 1 Department of Radiology, Leeds Teaching Hospitals NHS Trust, UK
| | - Chirag Patel
- 1 Department of Radiology, Leeds Teaching Hospitals NHS Trust, UK.,2 Department of Nuclear Medicine, Leeds Teaching Hospitals NHS Trust, UK
| | - Robin Prestwich
- 3 Department of Clinical Oncology, Leeds Teaching Hospitals NHS Trust, UK
| | - Andrew Scarsbrook
- 1 Department of Radiology, Leeds Teaching Hospitals NHS Trust, UK.,2 Department of Nuclear Medicine, Leeds Teaching Hospitals NHS Trust, UK.,4 Leeds Institute of Cancer and Pathology, University of Leeds, UK
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Matos AP, Altun E, Ramalho M, Velloni F, AlObaidy M, Semelka RC. An overview of imaging techniques for liver metastases management. Expert Rev Gastroenterol Hepatol 2016; 9:1561-76. [PMID: 26414180 DOI: 10.1586/17474124.2015.1092873] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Evaluation of liver metastases is one of the most common indications for liver imaging. Imaging plays a key role in the of assessment liver metastases. A variety of imaging techniques, including ultrasonography, computed tomography, MRI and PET combined with CT scan are available for diagnosis, planning treatment, and follow-up treatment response. In this paper, the authors present the role of imaging for the assessment of liver metastases and the contribution of each of the different imaging techniques for their evaluation and management. Following recent developments in the field of oncology, the authors also present the importance of imaging for the assessment of liver metastases response to therapy. Finally, future perspectives on imaging of liver metastases are presented.
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Affiliation(s)
- António P Matos
- a University of North Carolina, Department of Radiology, Chapel Hill, NC, USA
| | - Ersan Altun
- a University of North Carolina, Department of Radiology, Chapel Hill, NC, USA
| | - Miguel Ramalho
- a University of North Carolina, Department of Radiology, Chapel Hill, NC, USA
| | - Fernanda Velloni
- a University of North Carolina, Department of Radiology, Chapel Hill, NC, USA
| | - Mamdoh AlObaidy
- a University of North Carolina, Department of Radiology, Chapel Hill, NC, USA
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Abstract
Cancer therapy is mainly based on different combinations of surgery, radiotherapy, and chemotherapy. Additionally, targeted therapies (designed to disrupt specific tumor hallmarks, such as angiogenesis, metabolism, proliferation, invasiveness, and immune evasion), hormonotherapy, immunotherapy, and interventional techniques have emerged as alternative oncologic treatments. Conventional imaging techniques and current response criteria do not always provide the necessary information regarding therapy success particularly to targeted therapies. In this setting, MR imaging offers an attractive combination of anatomic, physiologic, and molecular information, which may surpass these limitations, and is being increasingly used for therapy response assessment.
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Boss A, Barth B, Filli L, Kenkel D, Wurnig MC, Piccirelli M, Reiner CS. Simultaneous multi-slice echo planar diffusion weighted imaging of the liver and the pancreas: Optimization of signal-to-noise ratio and acquisition time and application to intravoxel incoherent motion analysis. Eur J Radiol 2016; 85:1948-1955. [PMID: 27776645 DOI: 10.1016/j.ejrad.2016.09.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 09/02/2016] [Accepted: 09/05/2016] [Indexed: 01/02/2023]
Abstract
PURPOSE To optimize and test a diffusion-weighted imaging (DWI) echo-planar imaging (EPI) sequence with simultaneous multi-slice (SMS) excitation in the liver and pancreas regarding acquisition time (TA), number of slices, signal-to-noise ratio (SNR), image quality (IQ), apparent diffusion coefficient (ADC) quantitation accuracy, and feasibility of intravoxel incoherent motion (IVIM) analysis. MATERIALS AND METHODS Ten healthy volunteers underwent DWI of the upper abdomen at 3T. A SMS DWI sequence with CAIPIRINHA unaliasing technique (acceleration factors 2/3, denoted AF2/3) was compared to standard DWI-EPI (AF1). Four schemes were evaluated: (i) reducing TA, (ii) keeping TA identical with increasing number of averages, (iii) increasing number of slices with identical TA (iv) increasing number of b-values for IVIM. Acquisition schemes i-iii were evaluated qualitatively (reader score) and quantitatively (ADC values, SNR). RESULTS In scheme (i) no differences in SNR were observed (p=0.321-0.038) with reduced TA (AF2 increase in SNR/time 75.6%, AF3 increase SNR/time 102.4%). No SNR improvement was obtained in scheme (ii). Increased SNR/time could be invested in acquisition of more and thinner slices or higher number of b-values. Image quality scores were stable for AF2 but decreased for AF3. Only for AF3, liver ADC values were systematically lower. CONCLUSION SMS-DWI of the liver and pancreas provides substantially higher SNR/time, which either may be used for shorter scan time, higher slice resolution or IVIM measurements.
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Affiliation(s)
- Andreas Boss
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland.
| | - Borna Barth
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland
| | - Lukas Filli
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland
| | - David Kenkel
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland
| | - Moritz C Wurnig
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland
| | - Marco Piccirelli
- Institute of Neuroradiology, University Hospital of Zurich, Switzerland
| | - Caecilia S Reiner
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland
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Diffusion-weighted magnetic resonance imaging predicts survival in patients with liver-predominant metastatic colorectal cancer shortly after selective internal radiation therapy. Eur Radiol 2016; 27:966-975. [DOI: 10.1007/s00330-016-4430-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 03/15/2016] [Accepted: 05/20/2016] [Indexed: 12/14/2022]
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Abstract
PURPOSE To discuss guidelines and salient imaging findings of solid tumors treated with common intra-arterial procedures used in interventional oncology. METHODS A meticulous literature search of PubMed-indexed articles was conducted. Key words included "imaging + embolization," "imaging + TACE," "imaging + radioembolization," "imaging + Y90," "mRECIST," and "EASL." Representative post-treatment cross-sectional images were obtained from past cases in this institution. RESULTS Intra-arterial therapy (IAT) in interventional oncology includes bland embolization, chemoembolization, and radioembolization. Solid tumors of the liver are the primary focus of these procedures. Cross-sectional CT and/or MR are the main modalities used to image tumors after treatment. Traditional size-based response criteria (WHO and RECIST) alone are of limited utility in determining response to IAT; tumoral necrosis and enhancement must be considered. Specifically for HCC, the EASL and mRECIST guidelines are becoming widely adopted response criteria to assess these factors. DWI, FDG-PET, and CEUS are modalities that play an adjunctive but controversial role. CONCLUSIONS Radiologists must be aware that the different forms of intra-arterial therapy yield characteristic findings on cross-sectional imaging. Knowledge of these findings is integral to accurate assessment of tumor response and progression.
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Pieper CC, Sprinkart AM, Meyer C, König R, Schild HH, Kukuk GM, Mürtz P. Evaluation of a Simplified Intravoxel Incoherent Motion (IVIM) Analysis of Diffusion-Weighted Imaging for Prediction of Tumor Size Changes and Imaging Response in Breast Cancer Liver Metastases Undergoing Radioembolization: A Retrospective Single Center Analysis. Medicine (Baltimore) 2016; 95:e3275. [PMID: 27057887 PMCID: PMC4998803 DOI: 10.1097/md.0000000000003275] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/10/2016] [Accepted: 03/04/2016] [Indexed: 12/11/2022] Open
Abstract
To investigate the value of a simplified intravoxel incoherent motion (IVIM) analysis for evaluation of therapy-induced tumor changes and response of breast cancer liver metastases (mBRC) undergoing radioembolization.In 21 females (mean age 54 years, range 43-72) with mBRC tumor size changes and response evaluation criteria in solid tumors (RECIST) response to 26 primary radioembolization procedures were analyzed. Standard 1.5-T liver magnetic resonance imaging including respiratory-gated diffusion-weighted imaging (DWI) with b0 = 0 s/mm, b1 = 50 s/mm, b2 = 800 s/mm before and 6 weeks after each treatment was performed. In addition to the apparent diffusion coefficient (ADC)(0,800), the estimated diffusion coefficient D' and the perfusion fraction f' were determined using a simplified IVIM approach. For each radioembolization, the 2 largest treated metastases (if available) were analyzed. Lesions were categorized according to size changes into group A (reduction of longest diameter [LD]) and group B (LD increase) after 3 months. Radioembolization procedures were further categorized into "response" (partial response and stable disease) and "nonresponse" (progressive disease) according to RECIST after 3 months. ADC and D' are given in 10 mm/s.Forty-five metastases were analyzed. Thirty-two lesions were categorized as A; 13 as B. Before therapy, group A lesions showed significantly larger f'-values than B (P = 0.001), but ADC(0,800) and D' did not differ. After therapy, in group A lesions the ADC(0,800)- and D'-values increased and f' decreased (P < 0.0001); in contrast in group B lesions f' increased (P = 0.001). Groups could be differentiated by preinterventional f' and by changes of D' and f' between pre and postinterventional imaging (area under the curve [AUC] of 0.903, 0.747 and 1.0, respectively).Preinterventional parameters did not differ between responders and nonresponders according to RECIST. ADC(0,800)- and D'-values showed a larger increase in responders compared with nonresponders (P = 0.013 and P = 0.001, respectively). After therapy f'-values decreased significantly in responders (P = 0.001). Good to excellent prediction of long-term RECIST response was possible by therapy-induced changes in LD, D', and f' (AUC 0.903, 0.879, and 0.867, respectively).A simplified IVIM model-based analysis of early post-treatment DWI can deliver additional information on tumor size changes and long-term RECIST response after radioembolization of mBRC. The estimated perfusion fraction f' is better suited for response assessment than the conventional ADC(0,800) or D'. This can be useful to guide further treatment strategy.
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Affiliation(s)
- Claus C Pieper
- From the Department of Radiology, University of Bonn, Bonn, Germany
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Luna A, Pahwa S, Bonini C, Alcalá-Mata L, Wright KL, Gulani V. Multiparametric MR Imaging in Abdominal Malignancies. Magn Reson Imaging Clin N Am 2016; 24:157-186. [PMID: 26613880 PMCID: PMC4974463 DOI: 10.1016/j.mric.2015.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Modern MR imaging protocols can yield both anatomic and functional information for the assessment of hepatobiliary and pancreatic malignancies. Diffusion-weighted imaging is fully integrated into state-of-the-art protocols for tumor detection, characterization, and therapy monitoring. Hepatobiliary contrast agents have gained ground in the evaluation of focal liver lesions during the last years. Perfusion MR imaging is expected to have a central role for monitoring therapy in body tumors treated with antivascular drugs. Approaches such as Magnetic resonance (MR) elastography and (1)H-MR spectroscopy are still confined to research centers, but with the potential to grow in a short time frame.
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Affiliation(s)
- Antonio Luna
- Department of Radiology, Health Time, Carmelo Torres 2, Jaén 23006, Spain; Department of Radiology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA.
| | - Shivani Pahwa
- Department of Radiology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA
| | | | - Lidia Alcalá-Mata
- Department of Radiology, Health Time, Carmelo Torres 2, Jaén 23006, Spain
| | - Katherine L Wright
- Department of Radiology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA
| | - Vikas Gulani
- Department of Radiology, Case Comprehensive Cancer Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA; Department of Urology, Case Comprehensive Cancer Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA; Department of Biomedical Engineering, Case Comprehensive Cancer Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA
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Ahlawat S, Khandheria P, Del Grande F, Morelli J, Subhawong TK, Demehri S, Fayad LM. Interobserver variability of selective region-of-interest measurement protocols for quantitative diffusion weighted imaging in soft tissue masses: Comparison with whole tumor volume measurements. J Magn Reson Imaging 2015; 43:446-54. [PMID: 26174705 DOI: 10.1002/jmri.24994] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 06/23/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND To assess the interobserver reliability of three selective region-of-interest (ROI) measurement protocols for apparent diffusion coefficient (ADC) quantifications in soft tissue masses (STMs) compared with whole tumor volume (WTV) ADC measurements. METHODS Institutional review board approval was obtained and informed consent was waived. Three observers independently measured minimum and mean ADCs of 73 benign and malignant musculoskeletal STMs using three selective methods (single-slice [SS], predefined three slices [PD], observer-based [OB]) and WTV measurements at 3.0 Tesla. Minimum and mean ADC values derived from each method were compared with WTV measurements, and inter-reader variation was assessed using the intraclass correlation coefficient (ICC). The time required for each method of ADC measurement was recorded. RESULTS For the SS, PD, OB, and WTV methods, minimum ADC values ((×10(-3) mm2 /s)) were 0.97, 0.78, 0.73, and 0.67, respectively, and mean ADC values ((×10(-3) mm2 /s)) were 1.49, 1.49, 1.51, and 1.49, respectively. Interobserver agreement was good to excellent for the minimum and mean ADC values for the three readers using the SS, PD, OB, and WTV (ICC range 0.78-0.90). The SS, PD and OB methods required the least amount of measurement time (14 ± 5, 40 ± 17, and 38 ± 15 s, respectively) while the reference WTV method required the longest measurement time (111 ± 54 s) (P < 0.01). CONCLUSION While all selective and WTV measurements offer good to excellent interobserver agreement, the selective OB method of ADC measurement results in the closest values to WTV measurements and requires significantly less measurement time than that required for the WTV method.
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Affiliation(s)
- Shivani Ahlawat
- The Johns Hopkins Medical Institutions, The Russell H. Morgan Department of Radiology & Radiological Science, Baltimore, Maryland, USA
| | - Paras Khandheria
- The Johns Hopkins Medical Institutions, The Russell H. Morgan Department of Radiology & Radiological Science, Baltimore, Maryland, USA
| | - Filippo Del Grande
- The Johns Hopkins Medical Institutions, The Russell H. Morgan Department of Radiology & Radiological Science, Baltimore, Maryland, USA.,Department of Radiology, Regional Hospital, Lugano, Switzerland
| | - John Morelli
- Tulsa Radiology Associates, Tulsa, Oklahoma, USA
| | - Ty K Subhawong
- Department of Radiology (R-109), University of Miami, Miami, Florida, USA
| | - Shadpour Demehri
- The Johns Hopkins Medical Institutions, The Russell H. Morgan Department of Radiology & Radiological Science, Baltimore, Maryland, USA
| | - Laura M Fayad
- The Johns Hopkins Medical Institutions, The Russell H. Morgan Department of Radiology & Radiological Science, Baltimore, Maryland, USA
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