Koivukangas J, Louhisalmi Y
Department of Neurosurgery, University Central Hospital, Oulu, Finland.
Ann Chir Gynaecol. 1990;79(4):192-6.
On the basis of over 40 neurosurgical laser operations, including CO2, Nd-YAG and simultaneous CO2/Nd-YAG laser procedures, a computer-guided system for spatial control of the laser beam has been developed. The pilot laser has several modes: it can direct the neurosurgeon along the central axis of the surgical microscope to stereotactically determined point-like targets or outline selected layers of underlying volume targets onto superficial surfaces such as scalp and cortex and onto the tissue at the appropriate depth. The active treatment laser can be guided by preoperative CT/MRI or intraoperative ultrasound image data for layer-by-layer resection of tumor. The laser system can be connected to the surgical field by rigid stereotactic means or by neuronavigator. In the present system, a special brain surgery adapter coordinates the imaging system and laser to the surgical field. Thus, the laser system can be used for image-guided surgical orientation, for demarcation of lesions and for actual layer-by-layer removal of tumor.
基于40多次神经外科激光手术，包括二氧化碳激光、钕钇铝石榴石激光以及同时使用二氧化碳/钕钇铝石榴石激光的手术，已开发出一种用于激光束空间控制的计算机引导系统。导向激光有多种模式：它可以引导神经外科医生沿着手术显微镜的中轴线到达立体定向确定的点状靶点，或者将选定的深层体积靶点的层面轮廓投影到头皮和皮层等浅表表面以及适当深度的组织上。有源治疗激光可以通过术前CT/MRI或术中超声图像数据进行引导，以逐层切除肿瘤。激光系统可以通过刚性立体定向装置或神经导航仪连接到手术区域。在本系统中，一种特殊的脑外科适配器将成像系统和激光与手术区域进行协调。因此，激光系统可用于图像引导的手术定位、病变划界以及实际的肿瘤逐层切除。
