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Updated: Jun 24, 2026
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Development and Angiographic Use of the Rabbit VX2 Model for Liver Cancer
Published on: January 7, 2019
How to operate a liver tumor you cannot see
Karl J Oldhafer1, Gregor A Stavrou, Guido Prause
1Department of General and Visceral Surgery, Celle General Hospital, Siemensplatz 4, 29223, Celle, Germany. oldhafer@liversurgery.de
Langenbeck'S Archives of Surgery
|March 13, 2009
Summary
Advanced chemotherapy for metastatic colorectal cancer can make tumors invisible for surgeons. Image-guided navigation and virtual planning enable precise resection of non-palpable liver lesions, improving surgical outcomes.
Area of Science:
- Hepatobiliary surgery
- Surgical oncology
- Medical imaging technology
Background:
- Neoadjuvant chemotherapy for metastatic colorectal cancer can lead to complete clinical response on imaging.
- Complete response on imaging does not guarantee tumor eradication, posing a challenge for surgeons.
- Non-visualizable and non-palpable residual lesions require advanced resection techniques.
Observation:
- Virtual surgery planning integrates pre- and post-chemotherapy CT data.
- Image-guided stereotactic navigation transfers virtual plans to the intraoperative field.
- Ultrasound and palpation were insufficient for lesion detection during surgery.
Findings:
- The virtual operation plan was successfully registered into the navigation system.
- The planned liver resection was performed without intraoperative complications.
- Histopathology confirmed the presence of vital tumor cells in the resected specimen.
Implications:
- Image-guided stereotactic navigation combined with virtual surgery planning addresses the challenge of resecting non-palpable liver metastases.
- This technique facilitates successful surgical intervention in cases of complete clinical response.
- Improved surgical precision can lead to better patient outcomes in metastatic colorectal cancer treatment.
