ArticleAbdominal radiology (New York)2020
Diagnostic accuracy of b800 and b1500 DWI-MRI of the pelvis to detect residual rectal adenocarcinoma: a multi-reader study.
Article in Abdominal radiology (New York), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Ultra-high b-value DWI in rectal cancer: image quality assessment and regional lymph node prediction based on radiomics.European radiology · 2025Article
- Clinical evaluation of accelerated diffusion-weighted imaging of rectal cancer using a denoising neural network.European journal of radiology · 2024Article
- The optimized rectal cancer MRI protocol: choosing the right sequences, sequence parameters, and preparatory strategies.Abdominal radiology (New York) · 2023Review
- Medical Radiology: Current Progress.Diagnostics (Basel, Switzerland) · 2023Review
- Watch-and-Wait Approach to Rectal Cancer: The Role of Imaging.Radiology · 2023Review
- Rectal MRI Interpretation After Neoadjuvant Therapy.Journal of magnetic resonance imaging : JMRI · 2023Review
- Multi-practice survey on MR imaging practice patterns in rectal cancer in the United States.Abdominal radiology (New York) · 2022Article
- MRI Evaluation of Complete Response of Locally Advanced Rectal Cancer After Neoadjuvant Therapy: Current Status and Future Trends.Cancer management and research · 2021Review
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
Abstract
purposeTo compare the sensitivity, specificity and intra-observer and inter-observer agreement of pelvic magnetic resonance imaging (MRI) b800 and b1500 s/mm
introductionDetection of residual adenocarcinoma after neoadjuvant CRT for LARC has become increasingly important and relies on both MRI and endoscopic surveillance. Optimal MRI diffusion b values have yet to be established for this clinical purpose.
methodsFrom our MRI database between 2018 and 2019, we identified a cohort of 28 patients after exclusions who underwent MRI of the rectum before and after neoadjuvant chemoradiation with a protocol that included both b800 and b1500 s/mm
resultsWithin the cohort, 19/28 (67.9%) had residual tumor, while 9/28 (32.1%) had a complete response. Among four readers, one reader had increased sensitivity for detection of residual tumor at b1500 s/mm
conclusionAside from one reader demonstrating increased sensitivity, no significant difference in accuracy parameters or inter-observer agreement was found between MR using b800 and b1500 for the detection of residual tumor after neoadjuvant CRT for LARC. However, there was a suggestion of a trend towards increased sensitivity with b1500, and further studies using larger cohorts may be needed to further investigate this topic.
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