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Kawai K, Ozaki K, Nakano D, Dejima A, Ise I, Nakamori S, Kato H, Natsume S, Takao M, Yamaguchi T, Ishihara S. Modified neoadjuvant rectal score as a novel prognostic model for rectal cancer patients who underwent chemoradiotherapy. Int J Clin Oncol 2024; 29:1012-1018. [PMID: 38592641 DOI: 10.1007/s10147-024-02520-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 03/18/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND The neoadjuvant rectal score (NAR score) has recently been proposed as a better prognostic model than the conventional TNM classification for rectal cancer patients that have undergone neoadjuvant chemoradiotherapy. We recently developed an apoptosis-detection technique for assessing the viability of residual tumors in resected specimens after chemoradiotherapy. This study aimed to establish an improved prognostic classification by combining the NAR score and the assessment of the apoptosis of residual cancer cells. METHODS We retrospectively enrolled 319 rectal cancer patients who underwent chemoradiotherapy followed by radical surgery. The recurrence-free survival and overall survival of the four models were compared: TNM stage, NAR score, modified TNM stage by re-staging according to cancer cell viability, and modified NAR score also by re-staging. RESULTS Downstaging of the ypT stage was observed in 15.5% of cases, whereas only 4.5% showed downstaging of ypN stage. C-index was highest for the modified NAR score (0.715), followed by the modified TNM, TNM, and NAR score. Similarly, Akaike's information criterion was smallest in the modified NAR score (926.2), followed by modified TNM, TNM, and NAR score, suggesting that the modified NAR score was the best among these four models. The overall survival results were similar: C-index was the highest (0.767) and Akaike's information criterion was the smallest (383.9) for the modified NAR score among the four models tested. CONCLUSION We established a novel prognostic model, for rectal cancer patients that have undergone neoadjuvant chemoradiotherapy, using a combination of apoptosis-detecting immunohistochemistry and neoadjuvant rectal scores.
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Affiliation(s)
- Kazushige Kawai
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan.
| | - Kosuke Ozaki
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Nakano
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Akira Dejima
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Ichiro Ise
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Sakiko Nakamori
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Hiroki Kato
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Soichiro Natsume
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Misato Takao
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Tatsuro Yamaguchi
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Honkomagome 3-18-22, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Soichiro Ishihara
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Koneru S, Cornish J, Chapuis PH, Keshava A, Rickard MJFX, Ng KS. Low anterior resection syndrome phenotypes-Different symptom profiles for different patients. Colorectal Dis 2024; 26:1214-1222. [PMID: 38803003 DOI: 10.1111/codi.17034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/03/2024] [Accepted: 04/22/2024] [Indexed: 05/29/2024]
Abstract
AIM Attention is increasingly being turned to functional outcomes as being central to colorectal cancer (CRC) survivorship. The current literature may underestimate the impact of evacuatory dysfunction on patient satisfaction with bowel function after anterior resection (AR) for CRC. The aim of this study was to investigate the impact of post-AR symptoms of storage and evacuatory dysfunction on patient satisfaction and health-related quality of life (HRQoL). METHOD A cross-sectional study was performed at an Australian hospital of patients post-AR for CRC (2012-2021). The postoperative bowel function scores used were: low anterior resection syndrome (LARS), St Mark's incontinence, Cleveland Clinic constipation and Altomare obstructive defaecation syndrome scores. Eight 'storage' and 'evacuatory' dysfunction symptoms were derived. A seven-point Likert scale measured patient satisfaction. The SF36v2® measured HRQoL. Linear regression assessed the association between symptoms, patient satisfaction and HRQoL. RESULTS Overall, 248 patients participated (mean age 70.8 years, 57.3% male), comprising 103 with rectal cancer and 145 with sigmoid cancer. Of the symptoms that had a negative impact on patient satisfaction, six reflected evacuatory dysfunction, namely excessive straining (p < 0.001), one or more unsuccessful bowel movement attempt(s)/24 h (p < 0.001), anal/vaginal digitation (p = 0.005), regular enema use (p = 0.004), toilet revisiting (p = 0.004) and >10 min toileting (p = 0.004), and four reflected storage dysfunction, namely leaking flatus (p = 0.002), faecal urgency (p = 0.005), use of antidiarrhoeal medication (p = 0.001) and incontinence-related lifestyle alterations (p < 0.001). A total of 130 patients (53.5%) had 'no LARS', 56 (23.1%) had 'minor LARS' and 57 (23.4%) had 'major LARS'. Fifty-seven (44.5%) patients classified as having 'no LARS' had evacuatory dysfunction. CONCLUSION Postoperative storage and evacuatory dysfunction symptoms have an adverse impact on patient satisfaction and HRQoL post-AR. The importance of comprehensively documenting symptoms of evacuatory dysfunction is highlighted. Further research is required to develop a patient satisfaction-weighted LARS-specific HRQoL instrument.
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Affiliation(s)
- Sireesha Koneru
- Concord Repatriation General Hospital, Concord Institute of Academic Surgery, Sydney, New South Wales, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Julie Cornish
- Cardiff and Vale University Health Board, Cardiff, Wales, UK
- University Hospital of Wales, Cardiff, Wales, UK
| | - Pierre H Chapuis
- Concord Repatriation General Hospital, Concord Institute of Academic Surgery, Sydney, New South Wales, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Anil Keshava
- Concord Repatriation General Hospital, Concord Institute of Academic Surgery, Sydney, New South Wales, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Matthew J F X Rickard
- Concord Repatriation General Hospital, Concord Institute of Academic Surgery, Sydney, New South Wales, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Kheng-Seong Ng
- Concord Repatriation General Hospital, Concord Institute of Academic Surgery, Sydney, New South Wales, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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Karahacioglu D, Taskin OC, Esmer R, Armutlu A, Saka B, Ozata IH, Rencuzogullari A, Bugra D, Balik E, Adsay V, Gurses B. Performance of CT in the locoregional staging of colon cancer: detailed radiology-pathology correlation with special emphasis on tumor deposits, extramural venous invasion and T staging. Abdom Radiol (NY) 2024; 49:1792-1804. [PMID: 38446179 DOI: 10.1007/s00261-024-04203-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 03/07/2024]
Abstract
PURPOSE To investigate the performance of computed tomography (CT) in the local staging of colon cancer in different segments, with emphasis on parameters that have been found to be significant for rectal cancer, namely, extramural venous invasion (EMVI) and tumor deposits (TDs). METHODS CT and pathology data from 137 patients were independently reviewed by radiology and pathology teams. The performance of CT in categorizing a given patient into good, versus poor prognostic groups was assessed for each segment, as well as the presence of lymph nodes (LNs), TDs and EMVIs. Discordant cases were re-evaluated to determine potential sources of error. Elastic stain was applied for EMVI discordance. RESULTS The T staging accuracy was 80.2%. For T stage stratification, CT performed slightly better in the left colon, and the lowest accuracy was in the transverse colon. Under-staging was more common (in 12.4%), and most of the mis-staged cases were in sigmoid colon. According to the first comprehensive correlative analysis, the sensitivity, specificity, and accuracy of CT for detecting TDs were found to be 57.9%, 92.4%, 87.6%, respectively. These figures were 44.7%, 72.7%, and 63.5% for LN, and 58.5%, 82.1% and 73% for EMVI. The detection rate was better for multifocal EMVI. The detection rate was also comparable (although substantially underestimated) for LNs, with the half of the LNs missed by CT being < 5 mm. Four patients that were classified as TD by CT, disclosed to be LNs by pathology. Correlative analysis led to refinement of the pathology criteria, with subsequent modifications of the initial reports in 13 (9.5%) patients. CONCLUSION Overall, CT performed well in the evaluation of colon cancer, as did TD and EMVI. It is advisable to include these parameters in CT-based staging. Radiologists should be aware of the pitfalls that occur more commonly in different segments.
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Affiliation(s)
- Duygu Karahacioglu
- Department of Radiology, Koç University School of Medicine, 34010, Istanbul, Turkey.
| | - Orhun Cig Taskin
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Rohat Esmer
- Koç University School of Medicine, Istanbul, Turkey
| | - Ayse Armutlu
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Burcu Saka
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Ibrahim Halil Ozata
- Department of General Surgery, Koç University School of Medicine, Istanbul, Turkey
| | - Ahmet Rencuzogullari
- Department of General Surgery, Koç University School of Medicine, Istanbul, Turkey
| | - Dursun Bugra
- Department of General Surgery, Koç University School of Medicine, Istanbul, Turkey
| | - Emre Balik
- Department of General Surgery, Koç University School of Medicine, Istanbul, Turkey
| | - Volkan Adsay
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Bengi Gurses
- Department of Radiology, Koç University School of Medicine, 34010, Istanbul, Turkey
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Liu Z, Zhang J, Wang H, Chen X, Song J, Xu D, Li J, Zheng M. MRI-based radiomics feature combined with tumor markers to predict TN staging of rectal cancer. J Robot Surg 2024; 18:229. [PMID: 38809383 DOI: 10.1007/s11701-024-01978-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/11/2024] [Indexed: 05/30/2024]
Abstract
The aim of this study is to evaluate the predictive ability of MRI-based radiomics combined with tumor markers for TN staging in patients with rectal cancer and to develop a prediction model for TN staging. A total of 190 patients with rectal adenocarcinoma who underwent total mesorectal excision at the First Affiliated Hospital of the Air Force Medical University between January 2016 and December 2020 were included in the study. An additional 54 patients from a prospective validation cohort were included between August 2022 and August 2023. Preoperative tumor markers and MRI imaging data were collected from all enrolled patients. The 190 patients were divided into a training cohort (n = 133) and a validation cohort (n = 57). Radiomics features were extracted by outlining the region of interest (ROI) on T2WI sequence images. Feature selection and radiomics score (Rad-score) construction were performed using least absolute shrinkage and selection operator regression analysis (LASSO). The postoperative pathology TNM stage was used to differentiate locally advanced rectal cancer (T3/4 or N1/2) from locally early rectal cancer (T1/2, N0). Logistic regression was used to construct separate prediction models for T stage and N stage. The models' predictive performance was evaluated using DCA curves and calibration curves. The T staging model showed that Rad-score, based on 8 radiomics features, was an independent predictor of T staging. When combined with CEA, tumor diameter, mesoretal fascia (MRF), and extramural venous invasion (EMVI), it effectively differentiated between T1/2 and T3/4 stage rectal cancers in the training cohort (AUC 0.87 [95% CI: 0.81-0.93]). The N-staging model found that Rad-score, based on 10 radiomics features, was an independent predictor of N-staging. When combined with CA19.9, degree of differentiation, and EMVI, it effectively differentiated between N0 and N1/2 stage rectal cancers. The training cohort had an AUC of 0.84 (95% CI: 0.77-0.91). The calibration curves demonstrated good precision between the predicted and actual results. The DCA curves indicated that both sets of predictive models could provide net clinical benefits for diagnosis. MRI-based radiomics features are independent predictors of T staging and N staging. When combined with tumor markers, they have good predictive efficacy for TN staging of rectal cancer.
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Affiliation(s)
- Zhiyu Liu
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China
| | - Jinsong Zhang
- Department of Radiology, The First Affiliated Hospital of Air Force Military Medical University, Xi'an, 710032, China
| | - Hongxuan Wang
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China
| | - Xihao Chen
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China
| | - Jiawei Song
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China
| | - Dong Xu
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China
| | - Jipeng Li
- Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, 710032, China.
| | - Minwen Zheng
- Department of Radiology, The First Affiliated Hospital of Air Force Military Medical University, Xi'an, 710032, China.
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Tovar Pérez R, Cerdán Santacruz C, Cano-Valderrama Ó, Jiménez Escovar F, Flor Lorente B, Perez RO, García Septiem J. Local Excision for organ preservation in early REctal cancer with No Adjuvant treatment (LORENA Trial): prospective observational study protocol. Cir Esp 2024:S2173-5077(24)00119-4. [PMID: 38763491 DOI: 10.1016/j.cireng.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/12/2024] [Indexed: 05/21/2024]
Abstract
INTRODUCTION Local resection (LR) is an alternative to total mesorectal excision (TME) that avoids its associated morbidity to the detriment of oncological radicality in early stages of rectal cancer. There are several conditioning factors for the success of this strategy, such as poor prognosis histological factors (PPHF), involvement of resection margins, clinical under staging, or complications that may lead to the indication for radical surgery with TME. PATIENTS AND METHOD An international multicenter prospective observational open-label study has been designed. Consecutive patients diagnosed with early rectal cancer (cT1N0 on MRI +/- endorectal ultrasound) whose lower limit is a maximum of 2 cm proximal to the ano-rectal junction will be included. The primary objective of the study is to determine the overall prevalence of PPHF after LR and requiring TME or postoperative radio-chemotherapy. DISCUSSION The prevalence of PPHF conditioning the success of LR in early distal rectal cancer has been scarcely studied in the literature, and there are very few prospective data. Considering the increasing interest in the watch and wait strategy in rectal cancer and its possible application in early-stage tumors, it seems necessary to know this information. The results of this study will help guide clinical practice in patients with early distal rectal cancer. It will also provide quality information for the design of future comparative studies to improve organ preservation success in these patients. TRIAL REGISTRATION NUMBER NCT05927584.
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Affiliation(s)
- Rodrigo Tovar Pérez
- General and Digestive Surgery Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Carlos Cerdán Santacruz
- Colorectal Surgery Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), Madrid, Spain; Colorectal Surgery Department, Clínica Santa Elena, Madrid, Spain.
| | - Óscar Cano-Valderrama
- Colorectal Surgery Department, Complejo Hospitalario Universitario de Vigo, Vigo, Spain
| | | | - Blas Flor Lorente
- Colorectal Surgery Department, Hospital Polite´cnico Universitario la Fe, Valencia, Spain
| | - Rodrigo O Perez
- Department of Surgical Oncology, Hospital Beneficencia Portuguesa, São Paulo, Brasil; Division of Colorectal Surgery, Hospital Alemão Oswaldo Cruz, São Paulo, Brasil; Angelita and Joaquim Gama Institute, São Paulo, Brasil
| | - Javier García Septiem
- Colorectal Surgery Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
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Mu RQ, Lv JW, Ma CY, Ma XH, Xing D, Ma HS. Diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging parameters and serum tumor markers in rectal carcinoma prognosis. World J Gastrointest Oncol 2024; 16:1796-1807. [PMID: 38764818 PMCID: PMC11099448 DOI: 10.4251/wjgo.v16.i5.1796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/15/2024] [Accepted: 02/29/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND Rectal carcinoma (RC), one of the most common malignancies globally, presents an increasing incidence and mortality year by year, especially among young people, which seriously affects the prognosis and quality of life of patients. At present, dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameters and serum carbohydrate antigen 19-9 (CA19-9) and CA125 Levels have been used in clinical practice to evaluate the T stage and differentiation of RC. However, the accuracy of these evaluation modalities still needs further research. This study explores the application and value of these methods in evaluating the T stage and differentiation degree of RC. AIM To analyze the diagnostic performance of DCE-MRI parameters combined with serum tumor markers (TMs) in assessing pathological processes and prognosis of RC patients. METHODS A retrospective analysis was performed on 104 RC patients treated at Yantai Yuhuangding Hospital from May 2018 to January 2022. Patients were categorized into stages T1, T2, T3, and T4, depending on their T stage and differentiation degree. In addition, they were assigned to low (L group) and moderate-high differentiation (M + H group) groups based on their differentiation degree. The levels of DCE-MRI parameters and serum CA19-9 and CA125 in different groups of patients were compared. In addition, the value of DCE-MRI parameters [volume transfer constant (Ktrans), rate constant (Kep), and extravascular extracellular volume fraction (Ve) in assessing the differentiation and T staging of RC patients was discussed. Furthermore, the usefulness of DCE-MRI parameters combined with serum CA19-9 and CA125 Levels in the evaluation of RC differentiation and T staging was analyzed. RESULTS Ktrans, Ve, CA19-9 and CA125 were higher in the high-stage group and L group than in the low-stage group and M + H Group, respectively (P < 0.05). The areas under the curve (AUCs) of the Ktran and Ve parameters were 0.638 and 0.694 in the diagnosis of high and low stages, respectively, and 0.672 and 0.725 in diagnosing moderate-high and low differentiation, respectively. The AUC of DCE-MRI parameters (Ktrans + Ve) in the diagnosis of high and low stages was 0.742, and the AUC in diagnosing moderate-high and low differentiation was 0.769. The AUCs of CA19-9 and CA-125 were 0.773 and 0.802 in the diagnosis of high and low stages, respectively, and 0.834 and 0.796 in diagnosing moderate-high and low differentiation, respectively. Then, we combined DCE-MRI (Ktrans + Ve) parameters with CA19-9 and CA-125 and found that the AUC of DCE-MRI parameters plus serum TMs was 0.836 in the diagnosis of high and low stages and 0.946 in the diagnosis of moderate-high and low differentiation. According to the Delong test, the AUC of DCE-MRI parameters plus serum TMs increased significantly compared with serum TMs alone in the diagnosis of T stage and differentiation degree (P < 0.001). CONCLUSION The levels of the DCE-MRI parameters Ktrans and Ve and the serum TMs CA19-9 and CA125 all increase with increasing T stage and decreasing differentiation degree of RC and can be used as indices to evaluate the differentiation degree of RC in clinical practice. Moreover, the combined evaluation of the above indices has a better effect and more obvious clinical value, providing important guiding importance for clinical condition judgment and treatment selection.
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Affiliation(s)
- Ren-Qi Mu
- Department of Radiology, Yantai Mountain Hospital, Yantai 264001, Shandong Province, China
| | - Jun-Wei Lv
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
| | - Cai-Yun Ma
- Department of Gynaecology, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
| | - Xiao-Hui Ma
- The First Clinical Medical College, Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
| | - Dong Xing
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
| | - Hou-Sheng Ma
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
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Ma Q, Zheng L, Cheng H, Li X, Liu Z, Gong P. PDCD4-induced oxidative stress through FGR/NF-κB axis in rectal cancer radiotherapy-induced AKI. Int Immunopharmacol 2024; 132:111779. [PMID: 38581987 DOI: 10.1016/j.intimp.2024.111779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 04/08/2024]
Abstract
This study aimed to investigate the molecular mechanism of the effect of PDCD4 on radiotherapy-induced acute kidney injury (AKI) in rectal cancer through the regulation of FGR/NF-κB signaling. Differentially expressed genes were identified using Gene Expression Omnibus (GEO) datasets (GSE90627 for rectal cancer and GSE145085 for AKI) and R software. The human renal tubular epithelial cell line, HK-2, was used to establish an in vitro model of radiotherapy-induced AKI. RT-qPCR and western blotting were used to detect gene and protein expression levels, respectively. Cell proliferation and apoptosis were assessed using the CCK-8 assay and flow cytometry, respectively. The malondialdehyde and superoxide dismutase levels in the cell culture supernatants were determined. Additionally, an in vivo AKI model was established using BALB/c mice, and kidney tissue morphology, expression of the renal injury molecule KIM-1, apoptosis of renal tubular cells, and TAS and TOS in serum were evaluated. Bioinformatics analysis revealed the upregulated expression of PDCD4 in AKI. In vitro experiments demonstrated that PDCD4 induced apoptosis in renal tubular cells by promoting FGR expression, which activated the NF-κB signaling pathway and triggered an oxidative stress response. In vivo animal experiments confirmed that PDCD4 promoted oxidative stress response and radiotherapy-induced AKI through the activation of the FGR/NF-κB signaling pathway. Silencing PDCD4 attenuated radiotherapy-induced AKI. Our findings suggest that PDCD4 may induce radiotherapy-induced AKI in rectal cancer by promoting FGR expression, activating the NF-κB signaling pathway, and triggering an oxidative stress response.
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Affiliation(s)
- Qiang Ma
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China
| | - Lu Zheng
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China
| | - Hao Cheng
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China
| | - Xiaoyang Li
- The Second Clinical Medical College of Southern Medical University, Guangzhou 510515, PR China
| | - Zhining Liu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China.
| | - Peng Gong
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China.
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Ma Y, Ma D, Xu X, Li J, Guan Z. Progress of MRI in predicting the circumferential resection margin of rectal cancer: A narrative review. Asian J Surg 2024; 47:2122-2131. [PMID: 38331609 DOI: 10.1016/j.asjsur.2024.01.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/02/2024] [Accepted: 01/19/2024] [Indexed: 02/10/2024] Open
Abstract
Rectal cancer (RC) is the third most frequently diagnosed cancer worldwide, and the status of its circumferential resection margin (CRM) is of paramount significance for treatment strategies and prognosis. CRM involvement is defined as tumor touching or within 1 mm from the outermost part of tumor or outer border of the mesorectal or lymph node deposits to the resection margin. The incidence of involved CRM varied from 5.4 % to 36 %, which may associate with an in consistent definition of CRM, the quality of surgeries, and the different examination modalities. Although T and N status are essential factors in determining whether a patient should receive neoadjuvant therapy before surgery, CRM status is a powerful predictor of local and distant recurrence as well as survival rate. This review explores the significance of CRM, the various assessment methods, and the role of magnetic resonance imaging (MRI) and artificial intelligence-based MRI in predicting CRM status. MRI showed potential advantage in predicting CRM status with a high sensitivity and specificity compared to computed tomography (CT). We also discuss MRI advancements in RC imaging, including conventional MRI with body coil, high-resolution MRI with phased-array coil, and endorectal MRI. Along with a discussion of artificial intelligence-based MRI techniques to predict the CRM status of RCs before and after treatments.
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Affiliation(s)
- Yanqing Ma
- Department of Radiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, China.
| | - Dongnan Ma
- Yangming College of Ningbo University, Ningbo, Zhejiang, 315010, China.
| | - Xiren Xu
- Department of Radiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, China.
| | - Jie Li
- Department of Radiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, China.
| | - Zheng Guan
- Department of Radiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, China.
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Brewer J, Kamara M, Huebner M, Taxakis E, Grajewski K, Ramm C, Cleary RK. Operative trends following the adoption of nonoperative management of rectal cancer. J Surg Oncol 2024; 129:1139-1149. [PMID: 38406980 DOI: 10.1002/jso.27605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 02/07/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Differentiating clinical near-complete and complete responses (cCR) after neoadjuvant therapy (NT) is challenging in rectal cancer patients. We hypothesized that magnetic resonance imaging staging limitations for low rectal cancers may increase the proportion of abdominoperineal resection (APR) with permanent colostomy for those without a cCR. METHODS Single institution retrospective analysis of rectal cancer cases before and after adoption of nonoperative "watch and wait" (W&W) pathway. APR as a percentage of rectal resections was the primary outcome. RESULTS There were 76 total mesorectal excisions (TME) in the pre-W&W group and 98 in the post-W&W group. NT was significantly more common in the post-W&W group. There was no significant difference in the APR primary outcome (pre-W&W APR 33.3% vs. post-W&W APR 26.5%, p = 0.482). APR patients had fewer complete TME grades (69.2% vs. 46.2%) and more pathologic complete responses (0% vs. 26.9%) in the post-W&W period. The cCR rate for patients with nonoperative management was 51.4% (n = 37) and 13.5% (n = 5) had regrowths, all of whom underwent salvage surgery. CONCLUSION APR for those without a cCR to NT has not increased in the nonoperative management era. Balancing the pathologic complete response rate may require restaging some patients with clinical near-complete responses.
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Affiliation(s)
- Justin Brewer
- Department of Surgery, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
| | - Maseray Kamara
- Department of Surgery, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
| | - Marianne Huebner
- Center for Statistical Training and Consulting, Michigan State University, East Lansing, Michigan, USA
| | - Elias Taxakis
- Department of Radiology, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
| | - Karen Grajewski
- Department of Radiology, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
| | - Carole Ramm
- Department of Academic Research, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
| | - Robert K Cleary
- Department of Surgery, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA
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10
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Safont MJ, García-Figueiras R, Hernando-Requejo O, Jimenez-Rodriguez R, Lopez-Vicente J, Machado I, Ayuso JR, Bustamante-Balén M, De Torres-Olombrada MV, Domínguez Tristancho JL, Fernández-Aceñero MJ, Suarez J, Vera R. Interdisciplinary Spanish consensus on a watch-and-wait approach for rectal cancer. Clin Transl Oncol 2024; 26:825-835. [PMID: 37787973 DOI: 10.1007/s12094-023-03322-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 09/07/2023] [Indexed: 10/04/2023]
Abstract
Watch-and-wait has emerged as a new strategy for the management of rectal cancer when a complete clinical response is achieved after neoadjuvant therapy. In an attempt to standardize this new clinical approach, initiated by the Spanish Cooperative Group for the Treatment of Digestive Tumors (TTD), and with the participation of the Spanish Association of Coloproctology (AECP), the Spanish Society of Pathology (SEAP), the Spanish Society of Gastrointestinal Endoscopy (SEED), the Spanish Society of Radiation Oncology (SEOR), and the Spanish Society of Medical Radiology (SERAM), we present herein a consensus on a watch-and-wait approach for the management of rectal cancer. We have focused on patient selection, the treatment schemes evaluated, the optimal timing for evaluating the clinical complete response, the oncologic outcomes after the implementation of this strategy, and a protocol for surveillance of these patients.
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Affiliation(s)
- Maria Jose Safont
- Oncology Department, Consorcio Hospital General Universitario de Valencia. Valencia University, Av. de les Tres Creus, 2, 46014, València, Spain.
| | - Roberto García-Figueiras
- Radiology Department, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | | | | | - Jorge Lopez-Vicente
- Gastroenterology Department, Hospital Universitario de Mostoles, Mósteles, Spain
| | - Isidro Machado
- Instituto Valenciano de Oncología, Valencia, Spain
- Pathology Department, Patologika Laboratory QuironSalud, Valencia, Spain
- Pathology Department, University of Valencia, Valencia, Spain
| | | | - Marco Bustamante-Balén
- Gastrointestinal Endoscopy Unit, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | | | | | - Mª Jesús Fernández-Aceñero
- Surgical Pathology Department, Hospital Clínico San Carlos, IdiSSC, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Suarez
- General Surgery Department, Hospital Universitario de Navarra, Pamplona, Spain
| | - Ruth Vera
- Medical Oncology Department, Hospital Universitario de Navarra, Instituto de Investigación (Idisna), Pamplona, Spain
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11
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Volovat CC, Scripcariu DV, Boboc D, Volovat SR, Vasilache IA, Lupascu-Ursulescu C, Gheorghe L, Baean LM, Volovat C, Scripcariu V. Predicting the Feasibility of Curative Resection in Low Rectal Cancer: Insights from a Prospective Observational Study on Preoperative Magnetic Resonance Imaging Accuracy. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:330. [PMID: 38399617 PMCID: PMC10890266 DOI: 10.3390/medicina60020330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Background and Objectives: A positive pathological circumferential resection margin is a key prognostic factor in rectal cancer surgery. The point of this prospective study was to see how well different MRI parameters could predict a positive pathological circumferential resection margin (pCRM) in people who had been diagnosed with rectal adenocarcinoma, either on their own or when used together. Materials and Methods: Between November 2019 and February 2023, a total of 112 patients were enrolled in this prospective study and followed up for a 36-month period. MRI predictors such as circumferential resection margin (mCRM), presence of extramural venous invasion (mrEMVI), tumor location, and the distance between the tumor and anal verge, taken individually or combined, were evaluated with univariate and sensitivity analyses. Survival estimates in relation to a pCRM status were also determined using Kaplan-Meier analysis. Results: When individually evaluated, the best MRI predictor for the detection of a pCRM in the postsurgical histopathological examination is mrEMVI, which achieved a sensitivity (Se) of 77.78%, a specificity (Sp) of 87.38%, a negative predictive value (NPV) of 97.83%, and an accuracy of 86.61%. Also, the best predictive performance was achieved by a model that comprised all MRI predictors (mCRM+ mrEMVI+ anterior location+ < 4 cm from the anal verge), with an Se of 66.67%, an Sp of 88.46%, an NPV of 96.84%, and an accuracy of 86.73%. The survival rates were significantly higher in the pCRM-negative group (p < 0.001). Conclusions: The use of selective individual imaging predictors or combined models could be useful for the prediction of positive pCRM and risk stratification for local recurrence or distant metastasis.
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Affiliation(s)
- Cristian-Constantin Volovat
- Department of Radiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.L.-U.); (L.G.)
| | - Dragos-Viorel Scripcariu
- Department of Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Diana Boboc
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.V.)
| | - Simona-Ruxandra Volovat
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.V.)
| | - Ingrid-Andrada Vasilache
- Department of Mother and Child Care, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Corina Lupascu-Ursulescu
- Department of Radiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.L.-U.); (L.G.)
| | - Liliana Gheorghe
- Department of Radiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.L.-U.); (L.G.)
| | - Luiza-Maria Baean
- Department of Radiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.L.-U.); (L.G.)
| | - Constantin Volovat
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania (C.V.)
| | - Viorel Scripcariu
- Department of Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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12
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İsmail E, Kutlu B, Acar Hİ, Yörübulut M, Akkoca M, Kocaay AF, Elhan A, Kuzu MA. Lateral Lymph Node Dissection for Locally Advanced Rectal Carcinoma: A Step-by-Step Description of Surgical Anatomical Planes During Cadaveric Dissection and Minimally Invasive Surgery. Surg Laparosc Endosc Percutan Tech 2024; 34:101-107. [PMID: 38134383 DOI: 10.1097/sle.0000000000001241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/15/2023] [Indexed: 12/24/2023]
Abstract
PURPOSE Total mesorectal excision (TME) is accepted as gold standard method in rectal cancer globally. But there is no standard for lateral lymph nodes. Combination of neoadjuvant treatment plus lateral lymph node dissection (LLND) in select patients might be a promising method. Our purpose is to describe the anatomic landmarks of LLND on cadavers and minimally invasive surgery. MATERIALS AND METHODS Local advanced rectal cancer and lateral lymph node (LLN) metastasis are accepted as an indication of neoadjuvant treatment. LLND was performed according to preoperative imaging after radiochemotherapy. RESULTS Twenty-eight (10.5%) of 267 patients with rectal cancer who had suspected lateral lymph node metastasis (LLNM) with magnetic resonance imaging (MRI) underwent LLND in addition to TME after neoadjuvant chemoradiotherapy. Eight of them had LLNM. Three patients had bilateral LLND and only 1 had LLNM. The median number of harvested lymph nodes was 6. The rates of LLNM increased with the presence of poor prognosis markers. One regional and 1 distant recurrence were detected in patients who had no LLN metastasis compared with2 regional and 4 distant recurrences in the LLN-positive group. CONCLUSIONS Local advanced rectal cancer cases may benefit from LLND, but it does not appear to have an effect on overall survival. There is no consensus whether size and/or morphologic criteria in MRI are the ideal guide for LLND.
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Affiliation(s)
- Erkin İsmail
- Acibadem Hospital; Departments of General Surgery and Anatomy, Faculty of Medicine, Ankara University; SBU Etlik City Hospital, Ankara, Turkey
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13
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Cai L, Lambregts DMJ, Beets GL, Mass M, Pooch EHP, Guérendel C, Beets-Tan RGH, Benson S. An automated deep learning pipeline for EMVI classification and response prediction of rectal cancer using baseline MRI: a multi-centre study. NPJ Precis Oncol 2024; 8:17. [PMID: 38253770 PMCID: PMC10803303 DOI: 10.1038/s41698-024-00516-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/14/2023] [Indexed: 01/24/2024] Open
Abstract
The classification of extramural vascular invasion status using baseline magnetic resonance imaging in rectal cancer has gained significant attention as it is an important prognostic marker. Also, the accurate prediction of patients achieving complete response with primary staging MRI assists clinicians in determining subsequent treatment plans. Most studies utilised radiomics-based methods, requiring manually annotated segmentation and handcrafted features, which tend to generalise poorly. We retrospectively collected 509 patients from 9 centres, and proposed a fully automated pipeline for EMVI status classification and CR prediction with diffusion weighted imaging and T2-weighted imaging. We applied nnUNet, a self-configuring deep learning model, for tumour segmentation and employed learned multiple-level image features to train classification models, named MLNet. This ensures a more comprehensive representation of the tumour features, in terms of both fine-grained detail and global context. On external validation, MLNet, yielding similar AUCs as internal validation, outperformed 3D ResNet10, a deep neural network with ten layers designed for analysing spatiotemporal data, in both CR and EMVI tasks. For CR prediction, MLNet showed better results than the current state-of-the-art model using imaging and clinical features in the same external cohort. Our study demonstrated that incorporating multi-level image representations learned by a deep learning based tumour segmentation model on primary MRI improves the results of EMVI classification and CR prediction with good generalisation to external data. We observed variations in the contributions of individual feature maps to different classification tasks. This pipeline has the potential to be applied in clinical settings, particularly for EMVI classification.
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Affiliation(s)
- Lishan Cai
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Doenja M J Lambregts
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Geerard L Beets
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
- Department of Surgery, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Monique Mass
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Eduardo H P Pooch
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Corentin Guérendel
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Regina G H Beets-Tan
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 66202 AZ, Maastricht, The Netherlands
| | - Sean Benson
- Department of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
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14
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Miranda J, Causa Andrieu P, Nincevic J, Gomes de Farias LDP, Khasawneh H, Arita Y, Stanietzky N, Fernandes MC, De Castria TB, Horvat N. Advances in MRI-Based Assessment of Rectal Cancer Post-Neoadjuvant Therapy: A Comprehensive Review. J Clin Med 2023; 13:172. [PMID: 38202179 PMCID: PMC10780006 DOI: 10.3390/jcm13010172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Rectal cancer presents significant diagnostic and therapeutic challenges, with neoadjuvant therapy playing a pivotal role in improving resectability and patient outcomes. MRI serves as a critical tool in assessing treatment response. However, differentiating viable tumor tissue from therapy-induced changes on MRI remains a complex task. In this comprehensive review, we explore treatment options for rectal cancer based on resectability status, focusing on the role of MRI in guiding therapeutic decisions. We delve into the nuances of MRI-based evaluation of treatment response following neoadjuvant therapy, paying particular attention to emerging techniques like radiomics. Drawing from our insights based on the literature, we provide essential recommendations for post-neoadjuvant therapy management of rectal cancer, all within the context of MRI-based findings.
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Affiliation(s)
- Joao Miranda
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA; (J.N.); (Y.A.); (M.C.F.)
- Department of Radiology, University of Sao Paulo, R. Dr. Ovidio Pires de Campos, 75 Cerqueira Cesar, Sao Paulo 05403-010, Brazil
| | - Pamela Causa Andrieu
- Department of Radiology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA;
| | - Josip Nincevic
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA; (J.N.); (Y.A.); (M.C.F.)
| | - Lucas de Padua Gomes de Farias
- Department of Radiology, Hospital Sirio-Libanes, Rua Dona Adma Jafet, 91—Bela Vista, Sao Paulo 01308-050, Brazil;
- Department of Radiology, Allianca Saude, Av. Pres. Juscelino Kubitschek, 1830, Sao Paulo 01308-050, Brazil
| | - Hala Khasawneh
- Department of Radiology, University of Texas Southwestern, 5323 Harry Hines Blvd, Dallas, TX 75390, USA;
| | - Yuki Arita
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA; (J.N.); (Y.A.); (M.C.F.)
- Department of Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Nir Stanietzky
- Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Maria Clara Fernandes
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA; (J.N.); (Y.A.); (M.C.F.)
| | - Tiago Biachi De Castria
- Department of Gastrointestinal Oncology, Moffit Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612, USA;
- Morsani College of Medicine, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
| | - Natally Horvat
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA; (J.N.); (Y.A.); (M.C.F.)
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15
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Huang J, Tian WJ. Effects of remifentanil combined with propofol on hemodynamics and oxidative stress in patients undergoing resection of rectal carcinoma. World J Gastrointest Surg 2023; 15:2774-2782. [PMID: 38222023 PMCID: PMC10784818 DOI: 10.4240/wjgs.v15.i12.2774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND Rectal carcinoma (RC) treatment primarily involves laparoscopic surgery, which may induce significant hemodynamic changes and weaken immune function. Certain anesthetic approaches using opioid drugs (including remifentanil and sufentanil) pose risks, such as hypotension. AIM To determine the effects of remifentanil combined with propofol on hemodynamics and oxidative stress in patients undergoing RC resection. METHODS A total of 211 patients one hundred and four patients with RC treated at the First Affiliated Hospital of Dalian Medical University between November 2018 and November 2022 were retrospectively analyzed. Among them, the remifentanil group included 45 patients receiving remifentanil with propofol anesthesia and the sufentanil group included 59 patients receiving sufentanil with propofol anesthesia. Changes in the hemodynamic index, oxidative stress index, general data, consumption of remifentanil, and use of vasoactive drugs were compared. The incidences of adverse reactions were calculated. RESULTS The two groups did not significantly differ in terms of operation, anesthesia, and extubation times (P > 0.05). At 1 min after intubation, the sufentanil group showed a notably higher heart rate, systolic blood pressure (SBP), diastolic blood pressure, and mean arterial pressure (MAP) compared with the remifentanil group (P < 0.05), whereas the sufentanil group showed a notably higher SBP and MAP compared with the remifentanil group at 5 min after pneumoperitoneum (P < 0.05). Thirty minutes after surgery, the remifentanil group showed significantly lower plasma cortisol, noradrenaline, and glucose levels than the sufentanil group (P < 0.001). The remifentanil group consumed significantly less remifentanil than the sufentanil group (P < 0.05), and the adoption frequency of ephedrine was lower in the remifentanil group than that in the sufentanil group (P < 0.05). The incidence of hypotension was notably higher in the sufentanil group than that in the remifentanil group (P < 0.05). CONCLUSION Remifentanil combined with propofol can improve hemodynamics and relieve oxidative stress in patients undergoing RC resection.
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Affiliation(s)
- Jing Huang
- Department of First Anesthesiology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning Province, China
| | - Wen-Jun Tian
- Department of Fourth Anesthesiology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning Province, China
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16
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Koneru S, Builth-Snoad L, Rickard MJFX, Keshava A, Chapuis PH, Ng KS. Major low anterior resection syndrome has equivalent health-related quality of life implications as having a permanent colostomy. Tech Coloproctol 2023; 28:17. [PMID: 38099961 DOI: 10.1007/s10151-023-02879-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/12/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND The literature is inconclusive when comparing health-related quality of life following restorative anterior resection (AR) compared with abdominoperineal resection (APR). Consideration of functional outcomes may explain this inconsistency. The aim of this study was to compare health-related quality of life in patients post-anterior resection, stratified by low anterior resection syndrome score, and post-abdominoperineal resection patients. METHODS A cross-sectional study of consecutive patients post APR and AR for rectal or sigmoid adenocarcinoma at a tertiary centre in Sydney, Australia (Jan 2012- Dec 2021) was performed. HRQoL outcomes (SF36v2 physical [PCS] and mental component summary [MCS] scores) were compared between APR and AR patients, with subgroup analyses stratifying AR patients according to LARS score (no/minor/major). Age- and gender-adjusted comparisons were performed by linear regression. RESULTS Overall, 248 post-AR patients (57.3% male, mean age 70.8 years, SD 11.6) and 64 post-APR patients (62.5% male, mean age 68.1 years, SD 13.1) participated. When stratified by LARS, 'major LARS' had a similar negative effect on age-and sex-adjusted PCS scores as APR. 'No LARS' (p < 0.001) and 'minor LARS' (p < 0.001) patients had higher PCS scores compared to post-APR patients. 'Major LARS' had a similarly negative effect on MCS scores compared with post-APR patients. MCS scores were higher in 'no LARS' (p = 0.006) compared with APR patients. CONCLUSIONS Postoperative bowel dysfunction significantly impacts health-related quality of life. Patients with 'major LARS' have health-related quality of life as poor as those following APR. This requires consideration when counselling patients on postoperative health-related quality of life, especially where poor postoperative bowel function is anticipated following restorative surgery.
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Affiliation(s)
- S Koneru
- Concord Institute of Academic Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - L Builth-Snoad
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
| | - M J F X Rickard
- Concord Institute of Academic Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Department of Colorectal Surgery, Macquarie University Hospital, Macquarie University, Sydney, NSW, Australia
| | - A Keshava
- Concord Institute of Academic Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Department of Colorectal Surgery, Macquarie University Hospital, Macquarie University, Sydney, NSW, Australia
| | - P H Chapuis
- Concord Institute of Academic Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - K-S Ng
- Concord Institute of Academic Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia.
- Division of Colorectal Surgery, Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia.
- Discipline of Surgery, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.
- Concord Institute of Academic Surgery, Concord, NSW, Australia.
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17
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Feng F, Liu Y, Bao J, Hong R, Hu S, Hu C. Multiregional-based magnetic resonance imaging radiomics model for predicting tumor deposits in resectable rectal cancer. Abdom Radiol (NY) 2023; 48:3310-3321. [PMID: 37578553 DOI: 10.1007/s00261-023-04013-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 07/05/2023] [Accepted: 07/19/2023] [Indexed: 08/15/2023]
Abstract
PURPOSE To establish and validate an integrated model incorporating multiregional magnetic resonance imaging (MRI) radiomics features and clinical factors to predict tumor deposits (TDs) preoperatively in resectable rectal cancer (RC). METHODS This study retrospectively included 148 resectable RC patients [TDs+ (n = 45); TDs- (n = 103)] from August 2016 to August 2022, who were divided randomly into a testing cohort (n = 45) and a training cohort (n = 103). Radiomics features were extracted from the volume of interest on T2-weighted images (T2WI) and diffusion-weighted images (DWI) from pretreatment MRI. Model construction was performed after feature selection. Finally, five classification models were developed by support vector machine (SVM) algorithm to predict TDs in resectable RC using the selected clinical factor, single-regional radiomics features (extracted from primary tumor), and multiregional radiomics features (extracted from the primary tumor and mesorectal fat). Receiver-operating characteristic (ROC) curve analysis was employed to assess the discrimination performance of the five models. The AUCs of five models were compared by DeLon's test. RESULTS The training and testing cohorts included 31 (30.1%) and 14 (31.1%) patients with TDs, respectively. The AUCs of multiregional radiomics, single-regional radiomics, and the clinical models for predicting TDs were 0.839, 0.765, and 0.793, respectively. An integrated model incorporating multiregional radiomics features and clinical factors showed good predictive performance for predicting TDs in resectable RC (AUC, 0.931; 95% CI, 0.841-0.988), which demonstrated superiority over clinical model (P = 0.016), the single-regional radiomics model (P = 0.042), and the multiregional radiomics model (P = 0.025). CONCLUSION An integrated model combining multiregional MRI radiomic features and clinical factors can improve prediction performance for TDs and guide clinicians in implementing treatment plans individually for resectable RC patients.
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Affiliation(s)
- Feiwen Feng
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Yuanqing Liu
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Jiayi Bao
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Rong Hong
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Su Hu
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China.
- Institute of Medical Imaging, Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China.
| | - Chunhong Hu
- Department of Radiology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China.
- Institute of Medical Imaging, Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China.
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18
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Qu X, Zhang L, Ji W, Lin J, Wang G. Preoperative prediction of tumor budding in rectal cancer using multiple machine learning algorithms based on MRI T2WI radiomics. Front Oncol 2023; 13:1267838. [PMID: 37941552 PMCID: PMC10628597 DOI: 10.3389/fonc.2023.1267838] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/10/2023] [Indexed: 11/10/2023] Open
Abstract
Objective This study aimed to explore the radiomics model based on magnetic resonance imaging (MRI) T2WI and compare the value of different machine algorithms in preoperatively predicting tumor budding (TB) grading in rectal cancer. Methods A retrospective study was conducted on 266 patients with preoperative rectal MRI examinations, who underwent complete surgical resection and confirmed pathological diagnosis of rectal cancer. Among them, patients from Qingdao West Coast Hospital were assigned as the training group (n=172), while patients from other hospitals were assigned as the external validation group (n=94). Regions of interest (ROIs) were delineated, and image features were extracted and dimensionally reduced using the Least Absolute Shrinkage and Selection Operator (LASSO). Eight machine algorithms were used to construct the models, and the diagnostic performance of the models was evaluated and compared using receiver operating characteristic (ROC) curves and the area under the curve (AUC), as well as clinical utility assessment using decision curve analysis (DCA). Results A total of 1197 features were extracted, and after feature selection and dimension reduction, 11 image features related to TB grading were obtained. Among the eight algorithm models, the support vector machine (SVM) algorithm achieved the best diagnostic performance, with accuracy, sensitivity, and specificity of 0.826, 0.949, and 0.723 in the training group, and 0.713, 0.579, and 0.804 in the validation group, respectively. DCA demonstrated the clinical utility of this radiomics model. Conclusion The radiomics model based on MR T2WI can provide an effective and noninvasive method for preoperative TB grading assessment in patients with rectal cancer.
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Affiliation(s)
- Xueting Qu
- Department of Radiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong, China
| | - Liang Zhang
- Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Weina Ji
- Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jizheng Lin
- Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Guohua Wang
- Department of Radiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong, China
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Zhao M, Feng L, Zhao K, Cui Y, Li Z, Ke C, Yang X, Qiu Q, Lu W, Liang Y, Xie C, Wan X, Liu Z. An MRI-based scoring system for pretreatment risk stratification in locally advanced rectal cancer. Br J Cancer 2023; 129:1095-1104. [PMID: 37558922 PMCID: PMC10539304 DOI: 10.1038/s41416-023-02384-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Accurately assessing the risk of recurrence in patients with locally advanced rectal cancer (LARC) before treatment is important for the development of treatment strategies. The purpose of this study is to develop an MRI-based scoring system to predict the risk of recurrence in patients with LARC. METHODS This was a multicenter observational study that enrolled participants who underwent neoadjuvant chemoradiotherapy. To evaluate the risk of recurrence in these patients, we developed the mrDEC scoring system and assessed inter-reader agreement. Additionally, we plotted Kaplan-Meier curves to compare the 3-year disease-free survival (DFS) and 5-year overall survival (OS) rates among patients with different mrDEC scores. RESULTS A total of 1287 patients with LARC were included in this study. We observed substantial inter-reader agreement for mrDEC. Based on the mrDEC scores ranging from 0 to 3, the patients were categorized into four groups. The 3-year DFS rates for the groups were 91.0%, 79.5%, 65.5%, and 44.0% (P < 0.0001), respectively, and the 5-year OS rates were 92.9%, 87.1%, 74.8%, and 44.5%, respectively (P < 0.0001). CONCLUSIONS The mrDEC scoring system proved to be an effective tool for predicting the prognosis of patients with LARC and can assist clinicians in clinical decision-making.
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Affiliation(s)
- Minning Zhao
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lili Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ke Zhao
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangzhou, China.
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Yanfen Cui
- Department of Radiology, Shanxi Cancer Hospital, Shanxi Medical University, Taiyuan, China
| | - Zhenhui Li
- Department of Radiology, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, China
| | - Chenglu Ke
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Xinyue Yang
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qing Qiu
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Weirong Lu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanting Liang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - ChuanMiao Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
- Department of Radiology, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Xiangbo Wan
- Provincial Key Laboratory of Radiation Medicine in Henan (Under construction), The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
- Department of Radiation Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Zaiyi Liu
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangzhou, China.
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20
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Dong WZ, Ni HL, Cai C. Predictive value of a nomogram based on DCE-MRI and DWI quantitative parameters and serum CEA level for risk of postoperative recurrence/metastasis of rectal cancer. Shijie Huaren Xiaohua Zazhi 2023; 31:773-781. [DOI: 10.11569/wcjd.v31.i18.773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND The prognosis of rectal cancer is poor, and early prediction of recurrence and metastasis after radical surgery is of great significance for improving its prognosis. This study integrated multiple influencing factors such as multimodal magnetic resonance imaging (MRI) parameters, tumor markers, and clinicopathological features to develop a nomogram to provide a basis for the development of clinical intervention measures for this malignancy.
AIM To develop a nomogram based on dynamic contrast enhanced MRI (DCE-MRI) and diffusion-weighted imaging (DWI) quantitative parameters and serum carcinoembryonic antigen (CEA) level, and to analyze the predictive value of this model for the risk of postoperative recurrence and metastasis of rectal cancer, so as to guide the development of clinical intervention measures for this malignancy.
METHODS A total of 120 patients who underwent laparoscopic-assisted radical resection of rectal cancer at our hospital from March 1, 2019 to February 28, 2022 were selected as research subjects. According to the presence of recurrence/metastasis within 1 year after surgery, the patients were divided into a recurrence/metastasis group (n = 29) and a no recurrence/metastasis group (n = 91). The relevant parameters [apparent diffusion coefficient (ADC), transfer rate constant (Ktrans), blood return constant (Kep), and extravascular extracellular space volume fraction (Ve)] of multimodal MRI imaging techniques were compared between the two groups to analyze their predictive value for postoperative recurrence/metastasis. Univariate analysis with Lasso model screening for predictive factors related to postoperative recurrence/metastasis was performed, and logistic regression analysis was used to analyze the influencing factors of postoperative recurrence/metastasis. A nomogram was developed based on the influencing factors identified, and the predictive value of the model for postoperative recurrence/metastasis was assessed. Calibration curve and decision curve analysis (DCA) were used to verify the calibration degree and clinical effectiveness of the model, respectively.
RESULTS ADC in the recurrence/metastasis group was lower than that in the no recurrence/metastasis group, while Ktrans and Kep were higher than those in the no recurrence/metastasis group (P < 0.05). Obstruction, degree of differentiation, clinical stage, lymph node metastasis, postoperative CEA, ADC, Ktrans, and Kep were identified to be independent influencing factors on postoperative recurrence/metastasis (P < 0.05). The area under the curve of the nomogram was higher than that of ADC, Ktrans, and Kep combined (P < 0.05), and the nomogram had good calibration and clinical efficacy.
CONCLUSION The nomogram developed based on DCE-MRI and DWI quantitative parameters and serum CEA level has appreciated predictive value for postoperative recurrence/metastasis of rectal cancer, and clinical intervention measures can be formulated according to these high risk factors to reduce the risk of postoperative recurrence/metastasis.
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Affiliation(s)
- Wu-Zhen Dong
- Jinhua Central Hospital, Jinhua 321000, Zhejiang Province, China
| | - Hao-Liang Ni
- Jinhua Central Hospital, Jinhua 321000, Zhejiang Province, China
| | - Cheng Cai
- Jinhua Central Hospital, Jinhua 321000, Zhejiang Province, China
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21
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El Khababi N, Beets-Tan RGH, Tissier R, Lahaye MJ, Maas M, Curvo-Semedo L, Dresen RC, Nougaret S, Beets GL, Lambregts DMJ. Sense and nonsense of yT-staging on MRI after chemoradiotherapy in rectal cancer. Colorectal Dis 2023; 25:1878-1887. [PMID: 37545140 DOI: 10.1111/codi.16698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 05/02/2023] [Accepted: 06/08/2023] [Indexed: 08/08/2023]
Abstract
AIM The aim of this work was to investigate the value of rectal cancer T-staging on MRI after chemoradiotherapy (ymrT-staging) in relation to the degree of fibrotic transformation of the tumour bed as assessed using the pathological tumour regression grade (pTRG) of Mandard as a standard of reference. METHOD Twenty two radiologists, including five rectal MRI experts and 17 'nonexperts' (general/abdominal radiologists), evaluated the ymrT stage on the restaging MRIs of 90 rectal cancer patients after chemoradiotherapy. The ymrT stage was compared with the final ypT stage at histopathology; the percentages of correct staging (ymrT = ypT), understaging (ymrT < ypT) and overstaging (ymrT > ypT) were calculated and compared between patients with predominant tumour at histopathology (pTRG4-5) and patients with predominant fibrosis (pTRG1-3). Interobserver agreement (IOA) was computed using Krippendorff's alpha. RESULTS Average ymrT/ypT stage concordance was 48% for the experts and 43% for the nonexperts; ymrT/ypT stage concordance was significantly higher in the pTRG4-5 subgroup (58% vs. 41% for the pTRG1-3 group; p = 0.01), with the best results for the MRI experts. Overstaging was the main source of error, especially in the pTRG1-3 subgroup (average overstaging rate 38%-44% vs. 13%-55% in the pTRG4-5 subgroup). IOA was higher for the expert versus nonexpert readers (α = 0.67 vs. α = 0.39). CONCLUSIONS ymrT-staging is moderately accurate; accuracy is higher in poorly responding patients with predominant tumour but low in good responders with predominant fibrosis, resulting in significant overstaging. Radiologists should shift their focus from ymrT-staging to detecting gross residual (and progressive) disease, and identifying potential candidates for organ preservation who would benefit from further clinical and endoscopic evaluation to guide final treatment planning.
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Affiliation(s)
- Najim El Khababi
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
| | - Regina G H Beets-Tan
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
| | - Renaud Tissier
- Biostatistics Unit, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Max J Lahaye
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
| | - Monique Maas
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
| | - Luís Curvo-Semedo
- Department of Radiology, Centro Hospitalar e Universitario de Coimbra EPE, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Raphaëla C Dresen
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Stephanie Nougaret
- Medical Imaging Department, Montpellier Cancer Institute, Montpellier Cancer Research Institute (U1194), University of Montpellier, Montpellier, France
| | - Geerard L Beets
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
- Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Doenja M J Lambregts
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- GROW School for Oncology and Reproduction, University of Maastricht, Maastricht, The Netherlands
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Zhou M, Gong T, Chen M, Wang Y. High-resolution integrated dynamic shimming diffusion-weighted imaging (DWI) in the assessment of rectal cancer. Eur Radiol 2023; 33:5769-5778. [PMID: 36826497 DOI: 10.1007/s00330-023-09494-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/19/2022] [Accepted: 01/27/2023] [Indexed: 02/25/2023]
Abstract
OBJECTIVES To investigate the feasibility of high-resolution integrated dynamic shimming echo planar imaging (iEPI) applied to rectal cancer. METHODS A total of seventy-eight patients with non-mucinous rectum adenocarcinoma were enrolled in this study. Using a prototype high-resolution iEPI sequence, high-resolution single-shot EPI (sEPI) sequence, and sEPI sequence, subjective and objective assessment and apparent diffusion coefficient (ADC) value were measured for comparison. The spearman rank correlation analysis test and the receiver operating characteristic curve were performed to evaluate correlation between tumor ADC values, corresponding T stage, and differentiation degree of rectal cancer. RESULTS The subjective assessment of the image quality (IQ) of high-resolution iEPI was rated superior to high-resolution sEPI and sEPI by both readers (p < 0.001). Signal-to-noise ratio, contrast-to-noise, and signal-intensity ratio were significantly higher in high-resolution iEPI than the other two sequences (p < 0.001). There was no significant difference of tumor ADC values among three EPI sequences in the group of low- to well-differentiated rectal cancer. An inverse correlation was noted between ADC values on three DWI sequences and pathological T stage of rectal cancer (r = - 0.693, - 0.689, - 0.640, p < 0.001). The AUC values of high-resolution iEPI, high-resolution sEPI, and sEPI in predicting well-differentiated rectal cancer were 0.910, 0.761, and 0.725 respectively. CONCLUSIONS In conclusion, the high-resolution iEPI provided significantly higher IQ and stable ADC compared to another two sequences. High-resolution iEPI has the highest efficacy among three examined sequences in differentiation of rectal cancer with different degrees of differentiation. KEY POINTS • High-resolution iEPI provided a significantly better IQ than high-resolution sEPI and sEPI when assessing rectal cancer. • The AUC of high-resolution sEPI was the highest among three EPI sequences in predicting well-differentiated rectal cancer.
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Affiliation(s)
- Mi Zhou
- Department of Radiology, West Second Section of First Ring Road, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32Qingyang District, Chengdu, 610072, People's Republic of China
| | - Tong Gong
- Department of Radiology, West Second Section of First Ring Road, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32Qingyang District, Chengdu, 610072, People's Republic of China
| | - Meining Chen
- Department of MR Scientific Marketing, Siemens Healthineers, Shanghai, 200135, People's Republic of China
| | - Yuting Wang
- Department of Radiology, West Second Section of First Ring Road, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32Qingyang District, Chengdu, 610072, People's Republic of China.
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23
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Huang H, Zhou M, Gong T, Wang Y. Feasibility of high-resolution readout-segmented echo-planar imaging with simultaneous multislice imaging in assessing rectal cancer. Abdom Radiol (NY) 2023; 48:2258-2269. [PMID: 37142823 DOI: 10.1007/s00261-023-03937-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE To investigate the feasibility of high-resolution readout-segmented echo-planar imaging (rs-EPI) with simultaneous multislice (SMS) imaging to predict well-differentiated rectal cancer.Kindly check and confirm whether the Author Name 'Hongyun Huang ' is correctly identified.confirm METHODS: A total of eighty-three patients with nonmucinous rectal adenocarcinoma received both prototype SMS high-spatial-resolution and conventional rs-EPI sequences. Image quality was subjectively assessed by two experienced radiologists using a 4-point Likert scale (1 = poor, 4 = excellent). The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) and apparent diffusion coefficient (ADC) of the lesion were measured by two experienced radiologists in the objective assessment. Paired t tests or Mann‒Whitney U tests were used to compare the two groups. The areas under the receiver operating characteristic (ROC) curves (AUCs) were used to determine the predictive value of the ADCs in discriminating well-differentiated rectal cancer in the two groups. A two-sided p value < 0.05 represented statistical significance.Please check and confirm if the authors and affiliation details have been correctly identified. Amend if necessary.confirm RESULTS: In the subjective assessment, high-resolution rs-EPI had better image quality than conventional rs-EPI (p < 0.001). High-resolution rs-EPI also had a significantly higher SNR and CNR (p < 0.001). The T stage of rectal cancer was inversely correlated with the ADCs measured on high-resolution rs-EPI (r = -0.622, p < 0.001) and rs-EPI (r = -0.567, p < 0.001). The AUC of high-resolution rs-EPI in predicting well-differentiated rectal cancer was 0.768. CONCLUSION High-resolution rs-EPI with SMS imaging provided significantly higher image quality, SNRs, and CNRs and more stable ADC measurements than conventional rs-EPI. Additionally, the pretreatment ADC on high-resolution rs-EPI could discriminate well-differentiated rectal cancer.
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Affiliation(s)
- Hongyun Huang
- Department of Radiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32, West Second Section of First Ring Road, Qingyang District, Chengdu, 610072, People's Republic of China
| | - Mi Zhou
- Department of Radiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32, West Second Section of First Ring Road, Qingyang District, Chengdu, 610072, People's Republic of China
| | - Tong Gong
- Department of Radiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32, West Second Section of First Ring Road, Qingyang District, Chengdu, 610072, People's Republic of China
| | - Yuting Wang
- Department of Radiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, No. 32, West Second Section of First Ring Road, Qingyang District, Chengdu, 610072, People's Republic of China.
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Cuicchi D, Castagna G, Cardelli S, Larotonda C, Petrello B, Poggioli G. Restaging rectal cancer following neoadjuvant chemoradiotherapy. World J Gastrointest Oncol 2023; 15:700-712. [PMID: 37275455 PMCID: PMC10237020 DOI: 10.4251/wjgo.v15.i5.700] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/01/2023] [Accepted: 03/29/2023] [Indexed: 05/12/2023] Open
Abstract
Correct tumour restaging is pivotal for identifying the most personalised surgical treatment for patients with locally advanced rectal cancer undergoing neoadjuvant therapy, and works to avoid both poor oncological outcome and overtreatment. Digital rectal examination, endoscopy, and pelvic magnetic resonance imaging are the recommended modalities for local tumour restaging, while chest and abdominal computed tomography are utilised for the assessment of distant disease. The optimal length of time between neoadjuvant treatment and restaging, in terms of both oncological safety and clinical effectiveness of treatment, remains unclear, especially for patients receiving prolonged total neoadjuvant therapy. The timely identification of patients who are radioresistant and at risk of disease progression remains challenging.
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Affiliation(s)
- Dajana Cuicchi
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Giovanni Castagna
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Stefano Cardelli
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Cristina Larotonda
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Benedetta Petrello
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Gilberto Poggioli
- Department of Medical and Surgical Sciences, Surgery of the Alimentary Tract, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
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Schäfer AO. [Rectal cancer update: postneoadjuvant staging]. RADIOLOGIE (HEIDELBERG, GERMANY) 2023:10.1007/s00117-023-01152-5. [PMID: 37160477 DOI: 10.1007/s00117-023-01152-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/11/2023]
Abstract
Over the last two decades, magnetic resonance imaging (MRI) has continuously been gaining influence in modern management of rectal cancer. Bringing morphological and functional features together improves the differentiation of responders from nonresponders, provides for accurate surgical planning, intensified radiation therapy regimes, and watch-and-wait strategies. A shift from TNM staging towards risk stratification of rectal cancer patients, patient selection to increasingly individualized therapies, and intensified surveillance has contributed to the transformation of rectal MRI into a true gamechanger.
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Affiliation(s)
- Arnd-Oliver Schäfer
- Klinik für Radiologie, Städtisches Klinikum St. Georg Leipzig, Delitzscher Str. 141, 04129, Leipzig, Deutschland.
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Ma J, Zhu J, Yu S, Zhou C, Duan S, Zhang Y. An ileal gastrointestinal stromal tumor misdiagnosed as pelvic metastases from rectal cancer: a case report. Front Oncol 2023; 13:1164391. [PMID: 37182150 PMCID: PMC10166831 DOI: 10.3389/fonc.2023.1164391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
With the advancement of imaging and pathological diagnostic methods, it is not uncommon to see synchronous gastrointestinal stromal tumors (GIST) and other primary cancers, the most common of which are synchronous gastric cancer and gastric GIST. However, synchronous advanced rectal cancer and high-risk GIST in the terminal ileum are extremely rare, and they are easily misdiagnosed as rectal cancer with pelvic metastases due to their special location near iliac vessels. Herein, we report a 55-year-old Chinese woman with rectal cancer. Preoperative imaging revealed a middle and lower rectal lesion with a right pelvic mass (considered possible metastasis from rectal cancer). Through multidisciplinary discussions, we suspected the possibility of rectal cancer synchronous with a GIST in the terminal ileum. Intraoperative exploration by laparoscopy revealed a terminal ileal mass with pelvic adhesion, a rectal mass with plasma membrane depression, and no abdominal or liver metastases. Laparoscopic radical proctectomy (DIXON) plus partial small bowel resection plus prophylactic loop ileostomy was performed, and the pathological report confirmed the coexistence of advanced rectal cancer and a high-risk ileal GIST. The patient was treated with the chemotherapy (CAPEOX regimen) plus targeted therapy(imatinib) after surgery, and no abnormalities were observed on the follow-up examination. Synchronous rectal cancer and ileal GIST are rare and easily misdiagnosed as a rectal cancer with pelvic metastases, and careful preoperative imaging analysis and prompt laparoscopic exploration are required to determine the diagnosis and prolong patient survival.
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Affiliation(s)
- Jun Ma
- Department of General Surgery, Anqing Municipal Hospital, Anqing, China
| | - Juan Zhu
- Department of Imaging, Anqing Municipal Hospital, Anqing, China
| | - Shuihong Yu
- Research and Experimental Center, Anqing Medical and Pharmaceutical College, Anqing, China
| | - Chaoping Zhou
- Department of General Surgery, Anqing Municipal Hospital, Anqing, China
| | - Shuqiang Duan
- Department of Pathology, Anqing Municipal Hospital, Anqing, China
| | - Yaming Zhang
- Department of General Surgery, Anqing Municipal Hospital, Anqing, China
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Awiwi MO, Kaur H, Ernst R, Rauch GM, Morani AC, Stanietzky N, Palmquist SM, Salem UI. Restaging MRI of Rectal Adenocarcinoma after Neoadjuvant Chemoradiotherapy: Imaging Findings and Potential Pitfalls. Radiographics 2023; 43:e220135. [PMID: 36927125 DOI: 10.1148/rg.220135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Rectal adenocarcinoma constitutes about one-third of all colorectal adenocarcinoma cases. Rectal MRI has become mandatory for evaluation of patients newly diagnosed with rectal cancer because it can help accurately stage the disease, impact the choice to give neoadjuvant therapy or proceed with up-front surgery, and even direct surgical dissection planes. Better understanding of neoadjuvant chemoradiotherapy effects on rectal tumors and recognition that up to 30% of patients can have a pathologic complete response have opened the door for the nonsurgical "watch-and-wait" management approach for rectal adenocarcinoma. Candidates for this organ-preserving approach should have no evidence of malignancy on all three components of response assessment after neoadjuvant therapy (ie, digital rectal examination, endoscopy, and rectal MRI). Hence, rectal MRI again has a major role in directing patient management and possibly sparing patients from unnecessary surgical morbidity. In this article, the authors discuss the indications for neoadjuvant therapy in management of patients with rectal adenocarcinoma, describe expected imaging appearances of rectal adenocarcinoma after completion of neoadjuvant therapy, and outline the MRI tumor regression grading system. Since pelvic sidewall lymph node dissection is associated with a high risk of permanent genitourinary dysfunction, it is performed for only selected patients who have radiologic evidence of sidewall lymph node involvement. Therefore, the authors review the relevant lymphatic compartments of the pelvis and describe lymph node criteria for determining locoregional nodal spread. Finally, the authors discuss limitations of rectal MRI, describe several potential interpretation pitfalls after neoadjuvant therapy, and emphasize how these pitfalls may be avoided. © RSNA, 2023 Quiz questions for this article are available in the supplemental material.
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Affiliation(s)
- Muhammad O Awiwi
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Harmeet Kaur
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Randy Ernst
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Gaiane M Rauch
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Ajaykumar C Morani
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Nir Stanietzky
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Sarah M Palmquist
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
| | - Usama I Salem
- From the Division of Diagnostic Imaging, Department of Abdominal Imaging, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030
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Li ZF, Kang LQ, Liu FH, Zhao M, Guo SY, Lu S, Quan S. Radiomics based on preoperative rectal cancer MRI to predict the metachronous liver metastasis. Abdom Radiol (NY) 2023; 48:833-843. [PMID: 36529807 DOI: 10.1007/s00261-022-03773-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE At present, there are few effective method to predict metachronous liver metastasis (MLM) from rectal cancer. We aim to investigate the efficacy of radiomics based on multiparametric MRI of first diagnosed rectal cancer in predicting MLM from rectal cancer. METHODS From 301 consecutive histopathologically confirmed rectal cancer patients, 130 patients who have no distant metastasis detected at the time of diagnosis were enrolled and divided into MLM group (n = 49) and non-MLM group (n = 81) according to whether liver metastasis be detected later than 6 month after the first diagnosis of rectal cancer within 3 years' follow-up. The 130 patients were divided into a training set (n = 91) and a testing set (n = 39) at a ratio of 7:3 by stratified sampling using SPSS 24.0 software. The DWI model, HD T2WI model, and DWI + HD T2WI model were constructed respectively. The best performing model was selected and combined with the screened clinical features (including non-radiomics MRI features) to construct a fusion model. The testing set was used to evaluate the performance of the models, and the area under the curve (AUC) of receiver operating characteristics (ROC) was calculated for both the training set and the testing set. RESULTS The AUC of the DWI + HD T2WI model in the testing set was higher than that of the DWI or the HD T2 model alone with statistically significance (P < 0.05). The screened clinical features were extramural vascular invasion (EMVI), T and N stages in MRI (mrT, mrN), and the distance from the lower edge of the tumor to the anal verge. The AUC of the fusion model in the testing set was 0.911. Decision curves and nomogram also showed that the fusion model had excellent clinical performance. CONCLUSION The fusion model of primary rectal cancer MRI based radiomics combing clinical features can effectively predict MLM from rectal cancer, which may assist clinicians in formulating individualized monitoring and treatment plans.
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Affiliation(s)
- Zhuo-Fu Li
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China
| | - Li-Qing Kang
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China.
| | - Feng-Hai Liu
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China
| | - Meng Zhao
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China
| | - Su-Yin Guo
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China
| | - Shan Lu
- Department of Magnetic Resonance Imaging, Cangzhou Central Hospital, No. 16 Xinhua Western Road, Yunhe District, Cangzhou, 061000, China
| | - Shuai Quan
- GE HealthCare China (Shanghai), Shanghai, 210000, China
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Horvat N, El Homsi M, Miranda J, Mazaheri Y, Gollub MJ, Paroder V. Rectal MRI Interpretation After Neoadjuvant Therapy. J Magn Reson Imaging 2023; 57:353-369. [PMID: 36073323 PMCID: PMC9851947 DOI: 10.1002/jmri.28426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 02/01/2023] Open
Abstract
In recent years, several key advances in the management of locally advanced rectal cancer have been made, including the implementation of total mesorectal excision as the standard surgical approach; use of neoadjuvant chemoradiotherapy in selected patients with a high risk of local recurrence, and finally, adoption of organ preservation strategies, through either local excision or nonoperative management in selected patients with clinical complete response following neoadjuvant chemoradiotherapy. This review aims to shed light on the role of rectal MRI in the assessment of treatment response after neoadjuvant therapy, which is especially important given the growing feasibility of nonoperative management. First, an overview of current neoadjuvant therapies and response assessment based on digital rectal examination, endoscopy, and MRI will be provided. Second, the use of a high-quality restaging rectal MRI protocol will be presented. Third, a step-by-step approach to assessing treatment response on restaging rectal MRI following neoadjuvant treatment will be outlined, acknowledging challenges faced by radiologists during MRI interpretation. Finally, research related to response assessment will be discussed. LEVEL OF EVIDENCE: 4 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- Natally Horvat
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria El Homsi
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joao Miranda
- Department of Radiology, University of Sao Paulo, Sao Paulo, Brazil
| | - Yousef Mazaheri
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marc J. Gollub
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Viktoriya Paroder
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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30
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Feasibility of Simultaneous Multislice Acceleration Technique in Readout-Segmented Echo-Planar Diffusion-Weighted Imaging for Assessing Rectal Cancer. Diagnostics (Basel) 2023; 13:diagnostics13030474. [PMID: 36766579 PMCID: PMC9914524 DOI: 10.3390/diagnostics13030474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Readout-segmented echo-planar imaging (rs-EPI) with simultaneous multislice (SMS) technology has been successfully applied to tumor research in many organs, but no feasibility study in rectal cancer has been reported, and the optimal acceleration of SMS with rs-EPI in rectal cancer has not been well determined yet. OBJECTIVE To investigate the feasibility of SMS rs-EPI of rectal cancer with different acceleration factors (AFs) and its influence on image quality, acquisition time and apparent diffusion coefficients (ADCs) in comparison to conventional sequences. METHODS All patients underwent rs-EPI and SMS rs-EPI with AFs of 2 and 3 (2 × SMS rs-EPI and 3 × SMS rs-EPI, respectively) using a 3T scanner. Acquisition times of the three rs-EPI sequences were measured. Image qualitative parameters (5-point Likert scale), signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), geometric distortion, and apparent diffusion coefficient (ADC) values of the three sequences were compared. RESULTS A total of eighty-three patients were enrolled in our study. rs-EPI and 2 × SMS rs-EPI offered equivalently high overall image quality with a scan time reduction to nearly half (rs-EPI: 137 s, 2 × SM rs-EPI: 60 s). 3 × SMS rs-EPI showed significantly poorer image quality (p < 0.05). ADC values were significantly lower in 3 × SMS rs-EPI compared to rs-EPI in rectal tumors and normal tissue (tumor tissue: rs-EPI 1.19 ± 0.21 × 10-3 mm2/s, 3 × SMS rs-EPI 1.10 ± 0.26 × 10-3 mm2/s, p < 0.001; normal tissue: rs-EPI 1.68 ± 0.13 × 10-3 mm2/s, 3 × SMS rs-EPI 1.54 ± 0.20 × 10-3 mm2/s, p < 0.001). CONCLUSIONS SMS rs-EPI using an AF of 2 is feasible for rectal MRI resulting in substantial reductions in acquisition time while maintaining diagnostic image quality and similar ADC values to those of rs-EPI when the slice distance and number of shots are the same among three rs-EPI sequences.
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Cerdán-Santacruz C, Vailati BB, São Julião GP, Habr-Gama A, Perez RO. Local tumor regrowth after clinical complete response following neoadjuvant therapy for rectal cancer: what happens when organ preservation falls short. Tech Coloproctol 2023; 27:1-9. [PMID: 35986804 DOI: 10.1007/s10151-022-02654-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/09/2022] [Indexed: 01/12/2023]
Abstract
Organ preservation strategies, especially watch and wait, after neoadjuvant treatment in locally advanced rectal cancer, have become topics that generate significant interest, for both patients and clinicians. The obvious advantage of these strategies is the avoidance of surgery with its associated risks and functional consequences. Over time, it has become evident that these strategies offer acceptable safety in oncological terms and, in most patients, allows preservation of the rectum without harming patients in terms of distant metastasis or survival. However, there is a small group of patients in whom the tumor returns after an initially diagnosed clinical complete response; patients with local tumor regrowth. The main threat in these patients is not simply local disease, which can be successfully managed in most cases, but the possible effects it may have on distant metastases. The pathophysiology of the phenomenon of local tumor regrowth is not well known and, therefore, strategies to minimize possible impact on survival are not well defined. Our aim is to review key issues in this subgroup that pose a substantial threat to the safety and viability of organ-preserving and watch-and-wait strategies. We also explore possible pathophysiologic explanations and future directions and perspectives that may improve both local and systemic disease control.
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Affiliation(s)
- C Cerdán-Santacruz
- Colorectal Surgery, Hospital Universitario de la Princesa, Madrid, Spain
| | - B B Vailati
- Department of Surgical Oncology, Hospital Beneficencia Portuguesa, São Paulo, Brazil
- Division of Colorectal Surgery, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
- Angelita and Joaquim Gama Institute, Praça Amadeu Amaral 47, con. 111, São Paulo, 01327-904, Brazil
| | - G P São Julião
- Department of Surgical Oncology, Hospital Beneficencia Portuguesa, São Paulo, Brazil
- Division of Colorectal Surgery, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
- Angelita and Joaquim Gama Institute, Praça Amadeu Amaral 47, con. 111, São Paulo, 01327-904, Brazil
| | - A Habr-Gama
- Department of Surgical Oncology, Hospital Beneficencia Portuguesa, São Paulo, Brazil
- Division of Colorectal Surgery, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
- Angelita and Joaquim Gama Institute, Praça Amadeu Amaral 47, con. 111, São Paulo, 01327-904, Brazil
| | - R O Perez
- Department of Surgical Oncology, Hospital Beneficencia Portuguesa, São Paulo, Brazil.
- Division of Colorectal Surgery, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil.
- Angelita and Joaquim Gama Institute, Praça Amadeu Amaral 47, con. 111, São Paulo, 01327-904, Brazil.
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