Related Experiment Video
Updated: Apr 30, 2026

Application of Laparoscopic Hepatectomy Combined with Intraoperative Microwave Ablation in Colorectal Cancer Liver Metastasis
Published on: March 3, 2023
Percutaneous radiofrequency ablation-assisted laparoscopic hepatectomy
Toru Beppu1, Hidetoshi Nitta, Masayo Tsukamoto
1Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan; Department of Multidisciplinary Treatment for Gastroenterological Cancer, Innovation Center for Translational Research, Kumamoto University Hospital, Kumamoto, Japan.
Laparoscopic hepatectomy successfully removed rectal liver metastasis using segmental blood flow occlusion and radiofrequency ablation. Intraoperative imaging confirmed the targeted ischemic area for complete resection with adequate margins.
Area of Science:
- Hepatobiliary surgery
- Surgical oncology
- Minimally invasive surgery
Background:
- Metachronous rectal liver metastasis requires effective surgical management.
- Laparoscopic hepatectomy offers a minimally invasive approach for liver resections.
- Segmental blood flow occlusion and radiofrequency ablation are techniques to aid liver resection.
Observation:
- A 15mm rectal liver metastasis in segment 8 (ventral) was identified.
- Intraoperative enhanced ultrasound visualized the ischemic area as hypoechoic.
- A photodynamic eye camera revealed the ischemic area as a discolored lesion.
Findings:
- Laparoscopic hepatectomy was performed using segmental blood flow occlusion and radiofrequency ablation.
- The targeted ischemic area was clearly delineated using intraoperative imaging modalities.
- The liver metastasis was resected with adequate surgical margins.
Implications:
- This case demonstrates the feasibility and effectiveness of laparoscopic hepatectomy for rectal liver metastasis.
- Intraoperative imaging, including enhanced ultrasound and photodynamic eye camera, aids in precise tumor resection.
- Minimally invasive techniques can achieve oncological goals in managing liver metastases.

