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3D reconstruction in complex parenchymal sparing liver surgery
Alessandro Michele Bonomi1,2, Alessia Kersik1,2, Greta Bracchetti1,2
1General Surgery Department, ASST-Vimercate, 20871, Vimercate, Italy.
Heliyon
|March 7, 2023
Summary
Three-dimensional (3D) models improve surgical planning for colorectal liver metastases (CRLM). These models enhance anatomical accuracy and guide complex liver resections, optimizing patient outcomes.
Area of Science:
- Surgical Oncology
- Medical Imaging
- Hepatobiliary Surgery
Background:
- Prognosis for stage IV colorectal cancer hinges on managing liver metastases.
- Parenchymal sparing surgery is key for resectable colorectal liver metastases (CRLM).
- 3D reconstruction technology offers enhanced anatomical accuracy for complex liver procedures.
Observation:
- A custom-made 3D model was utilized for bilateral CRLM following neoadjuvant chemotherapy.
- Pre-operative 3D visualization significantly altered the surgical plan, prioritizing atypical resections.
- Augmented reality tools integrated with 3D models enhanced intraoperative navigation and safety.
Findings:
- 3D models facilitated parenchymal sparing surgery by enabling precise resection of lesions near major vessels.
- Surgical strategy prioritized resections based on decreasing difficulty to manage blood redistribution.
- The 3D model provided crucial intraoperative guidance, improving safety during complex dissections.
Implications:
- Routine use of 3D technology can improve preoperative planning and intraoperative navigation in liver surgery.
- 3D visualization offers a dynamic, patient-specific anatomical view, complementing traditional imaging.
- This technology aids surgeons in complex liver procedures, potentially improving patient outcomes.

