Fig. 2

Laparoscopic technique and procedure. A preoperative 3D reconstruction. B Liver mobilization and dissection of the second hepatic hilum were performed to expose the root of the MHV and left hepatic veins (LHV). C The Arantius ligament was used as an anatomic marker in preparing to separate the LHV and the LGP. D Exposure and dissection of the LGP. E Dividing the LHV and umbilicus fissure vein (UFV). F Exposing the MHV towards the cranio-dorsal direction. G The definite resection line after injecting 5 mL of ICG (0.025 mg/mL) for negative staining. H Parenchymal transection was performed along the fluorescent boundary. I Findings after left hemihepatectomy. (Additional file: https://pan.baidu.com/s/1zl0NvdpKm-tNQnshFcfryA?pwd=6kwl)