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ACR Appropriateness Criteria® Staging of Colorectal Cancer: 2021 Update.

Abstract
Preoperative imaging of rectal carcinoma involves accurate assessment of the primary tumor as well as distant metastatic disease. Preoperative imaging of nonrectal colon cancer is most beneficial in identifying distant metastases, regardless of primary T or N stage. Surgical treatment remains the definitive treatment for colon cancer, while organ-sparing approach may be considered in some rectal cancer patients based on imaging obtained before and after neoadjuvant treatment. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
AuthorsExpert Panel on Gastrointestinal Imaging, Elena K Korngold, Courtney Moreno, David H Kim, Kathryn J Fowler, Brooks D Cash, Kevin J Chang, Kenneth L Gage, Aakash H Gajjar, Evelyn M Garcia, Avinash R Kambadakone, Peter S Liu, Meghan Macomber, Daniele Marin, Jason A Pietryga, Cynthia S Santillan, Stefanie Weinstein, Jennifer Zreloff, Laura R Carucci
JournalJournal of the American College of Radiology : JACR (J Am Coll Radiol) Vol. 19 Issue 5S Pg. S208-S222 (05 2022) ISSN: 1558-349X [Electronic] United States
PMID35550803 (Publication Type: Practice Guideline, Journal Article)
CopyrightCopyright © 2022 American College of Radiology. Published by Elsevier Inc. All rights reserved.
Topics
  • Colonic Neoplasms
  • Diagnostic Imaging (methods)
  • Humans
  • Neoadjuvant Therapy
  • Rectal Neoplasms
  • Societies, Medical
  • United States

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