Hashimoto D, Dohi T, Tsuzuki M, Horiuchi T, Ohta Y, Chinzei K, Suzuki M, Idezuki Y
Department of Surgery, Tokyo Metropolitan Police Hospital, Japan.
Surgery. 1991 May;109(5):589-96.
Simulation of the needle puncture and volume estimation for the tumors in the liver were carried out with the three-dimensional image reconstruction system, which consists of a medical image acquisition system, a data processing system, and a graphic display. A set of sliced-image data from a computerized tomography and/or a magnetic resonance imaging was used to reconstruct the liver, the vessels, and the tumors of the patients with liver cancer. A good agreement of anatomic locations of both the intrahepatic vessels and the tumors between the reconstructed liver model and the echography done intraoperatively was observed. Surgical simulations with these graphic models clearly indicated safety areas for needle puncture in the laser coagulation therapy. In addition liver volumes were calculated within 3% of error in comparison to the measured values. These results indicate that the computer-aided surgery system is a highly promising method that avoids cumbersome stereoscopic recognition of the anatomical location of the diseased area and the vessels, before and after surgery.
利用三维图像重建系统对肝脏肿瘤进行了针刺模拟和体积估计，该系统由医学图像采集系统、数据处理系统和图形显示器组成。使用一组来自计算机断层扫描和/或磁共振成像的切片图像数据来重建肝癌患者的肝脏、血管和肿瘤。观察到重建的肝脏模型与术中超声检查的肝内血管和肿瘤的解剖位置吻合良好。使用这些图形模型进行的手术模拟清楚地表明了激光凝固治疗中针刺的安全区域。此外，计算得到的肝脏体积与测量值相比误差在3%以内。这些结果表明，计算机辅助手术系统是一种非常有前景的方法，可避免手术前后对病变区域和血管的解剖位置进行繁琐的立体识别。
