Preliminary application of uNavigator dual navigation system during laparoscopic liver resection at difficult sites
Objective To explore the application of uNavigator dual navigation system during perioperative period of laparoscopic liver resection.Methods This 53-year-old female had a history of lumbar disc herniation.Preoperative complete blood count,coagulation function,liver function and renal function were all normal.An 11.2 cm hepatic hemangioma was detected in right lobe of liver close to right posterior and right anterior hepatic pedicles and right hepatic vein.Laparoscopic resection of right posterior lobe and dorsal segment of right anterior lobe was planned.Three-dimensional(3D)hepatic image was reconstructed based upon the DICOM data of abdominal contrast-enhanced computed tomography(CT)for physician-patient communication,preoperative surgical planning and intraoperative navigation.Results Fusion of three-dimensional image and actual liver was utilized for marking left border of hemangioma and course of right anterior and right posterior hepatic pedicles.An ultrasonic scalpel was applied for separating liver parenchyma along border and Endo-GIA for resecting right posterior hepatic pedicle and main right hepatic vein.Operative duration was 180 min and volume of blood loss approximately 300 mL.She recovered well post-operation and was smoothly discharged from hospital at Day 8.Conclusion uNavigator dual navigation system may promote doctor-patient communication and aid clinicians in preoperative planning and intraoperative navigation.