MRI restaging of rectal cancer: The RAC (Response–Anal canal–CRM) analysis joint consensus guidelines of the GRERCAR and GRECCAR groups
Date
2023
Authors
Nougaret, S.
Rousset, P.
Lambregts, D.M.J.
Maas, M.
Gormly, K.
Lucidarme, O.
Brunelle, S.
Milot, L.
Arrivé, L.
Salut, C.
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Journal article
Citation
Diagnostic and Interventional Imaging, 2023; 104(7-8):311-322
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Abstract
Purpose: To develop guidelines by international experts to standardize data acquisition, image interpretation, and reporting in rectal cancer restaging with magnetic resonance imaging (MRI). Materials and methods: Evidence-based data and experts’ opinions were combined using the RAND-UCLA Appropriateness Method to attain consensus guidelines. Experts provided recommendations for reporting template and protocol for data acquisition were collected; responses were analysed and classified as “RECOMMENDED” versus “NOT RECOMMENDED” (if ≥ 80% consensus among experts) or uncertain (if < 80% consensus among experts). Results: Consensus regarding patient preparation, MRI sequences, staging and reporting was attained using the RAND-UCLA Appropriateness Method. A consensus was reached for each reporting template item among the experts. Tailored MRI protocol and standardized report were proposed. Conclusion: These consensus recommendations should be used as a guide for rectal cancer restaging with MRI.
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© 2023 Published by Elsevier Masson SAS on behalf of Société française de radiologie.