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Development of Computer System Supporting Neurological Surgery

支持神经外科手术的计算机系统的开发

基本信息

批准号：
01570820
负责人：
MANAKA Shinya
金额：
$ 1.34万
依托单位：
University of Teikyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

项目摘要

A new CT-stereotactic device (neuronavigator) has been developed which translates the operating point onto preoperative CT images. We applied this system to various aspects of neurosurgical procedures to examine its usefulness in neurosurgery. The system consists of a 6-joint sensing arm and a 16-bit personal computer. It projects the location of the arm tip onto a corresponding CT slice with a cursor, which guides a surgeon toward the intracranial target during open surgery. The system also projicts the tip location onto angiograms, and when used in conjunction with echography the ability of navigation is enhanced. The system was tired in neurosurgical procedures. The navigation system worked as the core of a multi-modal 3D data base which was useful during surgery. The maximum detection error was 3 mm which was considered to be sufficient for open microsurgery. It also proved useful in besigning craniotomy, in targeting deep seated mass lesions and in tracing the tumor edge which had been identified on CT scan. When the angiogram was combined with the navigator, it become easy to identify key vessels within a small operating field. The system was also combined with an ultrasonic echography. The combination makes it possible to translate the oblique echo image into standard horizontal T image, improving the precision of anatomical understanding t of the echo image.The guiding system has also been used in combination with three dimensional CT reconstruction (3D) system. The 3D system equipped with a function which simulates the operative dissection of the bone on the screen. When navigator was connected to the 3D system, navigator offered the 3D coordinates ofthe point on the patient's head, enabling the 3D system simulates the operative procedure before the actual craniotomy.

一种新的CT立体定向器(神经导航仪)已经被开发出来，它可以将操作点转换到术前CT图像上。我们将该系统应用于神经外科手术的各个方面，以检验其在神经外科手术中的有效性。该系统由6关节传感臂和16位个人计算机组成。它用光标将手臂尖端的位置投影到相应的CT切片上，在开放手术中引导外科医生朝向颅内目标。该系统还将尖端位置投影到血管造影上，当与超声检查结合使用时，导航能力得到增强。该系统在神经外科手术中疲惫不堪。该导航系统作为多模式3D数据库的核心，在手术中很有用。最大检测误差为3 mm，可用于开放显微外科手术。它还被证明在设计开颅手术、定位深层肿块病变和追踪CT扫描发现的肿瘤边缘方面也很有用。当血管造影与导航仪相结合时，就可以很容易地识别出小范围内的关键血管。该系统还与超声超声检查相结合。该系统可以将斜向回波图像转换为标准的水平T图像，提高了对回波图像的解剖理解精度。该引导系统也已与三维CT重建系统结合使用。3D系统配备了在屏幕上模拟手术解剖骨骼的功能。当导航仪连接到3D系统时，导航仪提供患者头部该点的3D坐标，使3D系统能够在实际开颅手术之前模拟手术过程。