Evidence map›Paper›PMID 42369141›Full record

ArticleFrontiers in medicine2026

Machine learning for predicting surgical difficulty of laparoscopic total mesorectal excision for rectal cancer: integrating MR-based pelvimetry and peritoneal reflection.

Shaoting Zhang, Fangying Chen, Minglu Liu, Yukun Chen, Guodong Jing, Xiaolu Ma, Chengwei Shao, Xiaohui Shi

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Article in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Shaoting Zhang *Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Fangying Chen *Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Minglu Liu *Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Yukun Chen *Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Guodong JingDepartment of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Xiaolu MaDepartment of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Chengwei ShaoDepartment of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China.
Xiaohui ShiDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: To investigate the potential of a machine learning (ML) model integrating MR-based pelvimetry and the peritoneal reflection (PR) in predicting the surgical difficulty of laparoscopic total mesorectal excision (LaTME) for rectal cancer (RC). Methods: RC patients who underwent rectal magnetic resonance imaging (MRI) before LaTME between December 2020 and December 2022 were included in this retrospective study. The duration of surgery, blood loss, postoperative hospital stay, and postoperative complications were selected to evaluate the surgical difficulty. Using unsupervised clustering analysis, all patients were divided into surgical difficulty group and non-surgical difficulty group based on four indicators of surgical difficulty. Least absolute shrinkage and selection operator (LASSO) regression and logistic regression were used to identify factors influencing the surgical difficulty of LaTME, and logistic regression (LR) and the extreme-gradient boosting (XGB) models were constructed. The receiver operating characteristic (ROC) curve and decision curve analysis (DCA) were utilized to compare the performance of the two models. Results: Data from 283 patients (60.98 ± 11.17 years old, 204 males and 79 females) were evaluated. The LASSO regression suggested that pelvic depth, the distance from the lower tumor margin to PR (T-PR), and gender were associated with the operative difficulty. The XGB model with an area under curve (AUC) of 0.809 (95% CI: 0.757-0.862) demonstrated a better performance than the LR model with an AUC of 0.623 (95%CI: 0.553-0.694). DCA confirmed that the XGB model was superior to the LR approach. Conclusion: The ML model integrating the pelvic depth, T-PR, and gender can evaluate the surgical difficulty of LaTME preoperatively and non-invasively, thus facilitating the predictive, preventive, and personalized treatment process in RC treatment.

Indexed as

machine learningpelvimetryperitoneal reflectionrectal cancersurgical difficulty

Identifiers

PMID42369141
PMCPMC13303118

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.