ArticleJournal of the Korean Society of Radiology2025
Enhancing Rectal Cancer Staging: Integrating Abbreviated Liver MRI into Standard Rectal MRI Protocols for Improved Diagnostic Utility.
Article in Journal of the Korean Society of Radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- A Practical Approach to Rectal Cancer Staging with Abbreviated Liver MRI.Journal of the Korean Society of Radiology · 2025Article
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7 authors.
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Abstract
Purpose: To evaluate the feasibility of an abbreviated MRI protocol for distinguishing hepatic lesions during the initial staging of rectal cancer. Materials and Methods: We conducted a retrospective review of 255 abbreviated liver MRI (axial T2 weighted fat-suppressed, diffusion-weighted image [using three b-values: 50, 400, and 800], apparent diffusion coefficient) in the 3T unit. Two radiologists reviewed the images by consensus interpretation. We calculated 95% confidence intervals (CIs) for the diagnostic yield, prevalence, specificity, and sensitivity of abbreviated MRI for hepatic metastasis. Results: Among the patients with too small to characterize (TSTC)-liver-on-CT, the specificity of abbreviated MRI for hepatic metastasis was 100% (20 of 20 patients; 95% CI: 0.8316-1.0000). Among patients suspected to have metastasis-liver-on-CT, the diagnostic yield of abbreviated MRI for hepatic metastasis was 90% (9 of 10 patients; 95% CI: 0.5550-0.9975), and the specificity of abbreviated MRI was 100% (1 of 1 patient; 95% CI: 0.0250-1.0000). None of the patients with TSTC-liver-on-CT-or suspected metastasis-liver-on-CT images showed unexpected hepatic metastasis at the 6-month follow-up CT. Conclusion: Abbreviated liver MRI is useful for diagnosing the benignity of TSTC-liver-on-CT without full-protocol MRI in patients with newly diagnosed rectal cancer.
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