Multimodal Image Registration for Helping Laparoscopic Liver Surgery Guidance

Trocar layout is recorded by photo or diagram. The video of conventional or robot-assisted laparoscopy and intraoperative laparoscopic ultrasound images (where applicable) are recorded by the surgeon and anonymized. Depth measurements of internal structures (tumors, cysts, vascular network, anatomical landmarks) are taken using identifiable points on the surface of the liver for tumour resection.

The registration of imaging data in conventional or robot-assisted laparoscopy is performed by the scientific team using the developed registration algorithm. The data obtained from the clinical intervention will help improve the registration algorithm.

Patient code (anonymised) + inclusion number, repeated on each page. Anonymised CT or MRI scan and date of scan. Type of cancer, planned surgery and approach (robotic or laparoscopic). Patient's age. Patient's surgical history. Toxic habits: tobacco, alcohol. Healthy liver, liver disease, cirrhosis. Anticoagulant and antiaggregant treatment.

Endoscope calibration. Intraoperative surgical and ultrasound images. Measurements for tumor's size and tumor's distances from liver surface and vascular vascular structures.

Definitive anatomical pathology with the measurement of resection margins.