Consistency analysis of liver tumor volume between 3D reconstruction via 3D visualization technology and postoperative measurement

Abstract

Abstract: Objective To investigate the consistency between the simulated operation via three-dimensional (3D) visualization technology and the actual operation of liver cancer. Methods Between August 2016 and August 2019, 144 patients with primary liver cancer in our hospital were treated by laparoscopic hepatectomy. All patients had undergone preoperative non-enhanced and contrast-enhanced spiral computed tomography (CT) of the upper abdomen. The original CT images were stored in digital imaging and communications in medicine format. The surgical plan was based on 3D images of liver reconstructed by 3D visualization technology. The actual hepatectomy and prognosis were analyzed, and the volume of tumor were compared between actual hepatectomy and 3D reconstruction. Results All of 144 patients underwent 3D reconstruction of liver and intrahepatic vessels successfully. Five patients underwent transarterial chemoembolization, because preoperative evaluation showed their intolerance to the operation with tumor invading inferior vena cava. The rest underwent hepatectomy successfully, including 74 cases of left lateral hepatic lobectomy, 5 cases of IV segmentectomy, 15 cases of VI segmentectomy, 15 cases of Ⅶ and Ⅷ segmentectomy, 5 cases of right hepatic lobectomy, 10 cases of left hepatic lobectomy and 15 cases of irregular hepatectomy. In the 139 patients, the total liver volume of (1 500.5 ± 447.9) mL, the virtual liver resection volume of (507.8 ± 184.4) mL, and the remnant to standard functional liver volume ratio of (64.0 ± 8.5) % were calculated by 3D visualization technology before operation. The actual tumor volume measured (523.0 ± 175.8) mL after operation. There was a positive correlation between virtual and actual volume of hepatectomy (r=0.949, P<0.001). After operation, 13 patients had complications, all of whom improved to be discharged after symptomatic treatment. No tumor recurrence or metastasis was found during 3-month follow-up. Conclusion The application of 3D reconstruction visualization technology in preoperative evaluation helps to predict the scope of liver resection accurately and to guide the formulation of surgical plan.

Key words: Three-dimensional visualization technology, Liver cancer, Three-dimensional reconstruction, Hepatectomy

CAI Ming-yue, JIANG Kai, XU Meng-lai, JIANG Jun-lin. Consistency analysis of liver tumor volume between 3D reconstruction via 3D visualization technology and postoperative measurement[J]. Chinese Hepatolgy, 2021, 26(3): 276-280.

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