To explore the short-term effect and value of preoperative three-dimensional visualization technology combined with intraoperative ultrasound real-time guidance in laparoscopic surgery for resectable primary liver cancer.

A total of 68 patients with resectable primary liver cancer undergoing laparoscopic hepatectomy in the First Affiliated Hospital of Bengbu Medical College from January 2021 to March 2022 were retrospectively analyzed. According to whether three-dimensional liver reconstruction before operation and intraoperative ultrasound guidance were performed, the patients were divided into the control group (traditional surgical planning after enhanced CT examination) and the observation group (three-dimensional liver reconstruction on the basis of enhanced CT combined with intraoperative ultrasound guidance), with 34 cases in each group. The method of operation, intraoperative blood loss, intraoperative blood transfusion, time of hepatic port blocking, operation time, the incidence of postoperative complications and postoperative hospital stay were observed and compared between the two groups.

Compared with the control group, the patients in the observation group had less intraoperative blood loss, lower proportion of blood transfusion, and shorter intraoperative hepatic port blocking time, operation time and postoperative hospital stay (all P<0.05). Six patients in the control group were converted to open surgery, and the difference between the two groups was statistically significant (χ²=4.570, P=0.033). The incidence of postoperative complications in the observation group was significantly lower than that in the control group (11.8% vs 35.3%, χ²=5.231, P=0.022).

The application of preoperative three-dimensional visualization technique combined with intraoperative ultrasound guidance in laparoscopic resection of primary liver cancer helps to formulate individualized surgery strategies, to improve clinical treatment effects by shortening hepatic port blocking time and reducing intraoperative bleeding and the incidence of postoperative complications. It has important guiding significance for the development of laparoscopic hepatectomy.