Retrospective Study
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Oncol. Aug 15, 2025; 17(8): 107526
Published online Aug 15, 2025. doi: 10.4251/wjgo.v17.i8.107526
Intraoperative laparoscopic ultrasound-guided resection and microwave ablation for colorectal liver metastases
Hao-Ran Wu, Hao Bu, You-Yuan Liu, Hou-Ping Zhou, Jing-Song Ye, Hua Chen
Hao-Ran Wu, Hao Bu, Hou-Ping Zhou, Jing-Song Ye, Hua Chen, Department of General Surgery, Changde Hospital, Xiangya School of Medicine, Central South University, Changde 415000, Hunan Province, China
You-Yuan Liu, Department of Ultrasound, Changde Hospital, Xiangya School of Medicine, Central South University, Changde 415000, Hunan Province, China
Co-first authors: Hao-Ran Wu and Hao Bu.
Co-corresponding authors: Jing-Song Ye and Hua Chen.
Author contributions: Wu HR and Bu H designed the research study as the co-first authors of the paper; Wu HR, Bu H, Zhou HP, Ye JS, and Chen H performed the research; Wu HR and Zhou HP collected and analyzed the data; Bu H and Ye JS drafted the manuscript; Ye JS and Chen H critically revised the manuscript and gave final approval of the version to be published as co-corresponding authors; all of the authors have sufficiently participated 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 its accuracy and integrity.
Supported by National Clinical Key Specialty Major Research Project of Hunan Provincial Health Commission in 2023, No. Z2023165.
Institutional review board statement: The study was reviewed and approved by Changde Hospital, Xiangya School of Medicine, Central South University.
Informed consent statement: All study participants or their legal guardian provided informed written consent about personal and medical data collection prior to study enrollment.
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 monday202003@163.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: Hua Chen, Professor, Department of General Surgery, Changde Hospital, Xiangya School of Medicine, Central South University, No. 818 Renmin Road, Wuling District, Changde 415000, Hunan Province, China. monday202003@163.com
Received: April 8, 2025
Revised: May 8, 2025
Accepted: July 8, 2025
Published online: August 15, 2025
Processing time: 127 Days and 15.7 Hours
Core Tip

Core Tip: This study demonstrates that intraoperative laparoscopic ultrasound [contrast-enhanced ultrasound with Sonazoid (S-CEUS)]-guided surgical resection and microwave ablation significantly enhances clinical outcomes in colorectal cancer liver metastasis patients compared to preoperative ethoxybenzyl diethylenetriamine penta-acetic acid enhanced magnetic resonance imaging planning. The S-CEUS group exhibited superior oncologic efficacy (higher 5-year survival: 32% vs 18%), fewer adverse events, and improved quality of life (Karnofsky Performance Status scores). Multivariate analysis confirmed intraoperative S-CEUS utilization and primary tumor differentiation as independent prognostic factors. These findings highlight S-CEUS-guided strategies as a critical advance in optimizing oncologic precision and long-term survival in metastatic liver surgery, warranting broader clinical adoption.