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Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Nov 27, 2025; 17(11): 109543
Published online Nov 27, 2025. doi: 10.4240/wjgs.v17.i11.109543
Value of high-resolution magnetic resonance imaging and dynamic contrast-enhanced scanning in the preoperative diagnosis of rectal cancer in older patients
Yan-Lei Gao, Hui-Na Li, Qiang Wang, Wen Shen
Yan-Lei Gao, The First Central Clinical School, Tianjin Medical University, Tianjin 300000, China
Hui-Na Li, Department of Pathology, Shijiazhuang Maternal and Child Health Hospital, Shijiazhuang 050000, Hebei Province, China
Qiang Wang, Department of Radiology, Shijiazhuang Maternal and Child Health Hospital, Shijiazhuang 050000, Hebei Province, China
Wen Shen, Department of Radiology, Tianjin First Central Hospital, Tianjin 300000, China
Author contributions: Gao YL and Shen W designed the research study; Gao YL, Li HN and Wang Q performed the research; Li HN collected and analyzed the data; Gao YL and Wang Q has been involved in drafting the manuscript and all authors have been involved in revising it critically for important intellectual content; all authors give final approval of the version to be published and have participated sufficiently in the work to take public responsibility for appropriate portions of the content and agreed to be accountable for all aspects of the work in ensuring that questions related to its accuracy or integrity.
Supported by Tianjin Key Medical Discipline (Specialty) Construction Project, No. TJYXZDXK-3-012B.
Institutional review board statement: The study was reviewed and approved by Shijiazhuang Maternal and Child Health Hospital, approve number: 20201110.
Informed consent statement: All study participants or their legal guardian provided informed written consent about personal and medical data collection prior to study enrolment.
Conflict-of-interest statement: The authors declare no conflicts of interest for this article.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at shenwen66@126.com. Participants gave informed consent for data sharing.
Open Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Wen Shen, DM, Professor, Department of Radiology, Tianjin First Central Hospital, No. 2 Baoshan West Road, Tianjin 300000, China. shenwen66@126.com
Received: July 4, 2025
Revised: August 12, 2025
Accepted: October 10, 2025
Published online: November 27, 2025
Processing time: 143 Days and 19.6 Hours
Core Tip

Core Tip: This study evaluated the value of high-resolution magnetic resonance imaging combined with dynamic contrast-enhanced scanning for preoperative staging of rectal cancer in older patients. In a retrospective analysis of 148 patients (December 2020 to December 2024), postoperative histopathology served as the gold standard. T staging accuracy was 84.5%, with a sensitivity of 62.5%-90.5% and specificity of 79.3%-100% across T1-T4 stages, demonstrating excellent agreement with pathological staging (k = 0.817, P < 0.001). Conversely, N staging showed lower sensitivity (36.96%-70.0%) and specificity (72.55%-84.85%), with poor agreement (k = 0.259, P < 0.001). Overall, this combined imaging approach provides high diagnostic accuracy for T staging to guide treatment planning, although its performance in N staging requires improvement.