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目的通过经前额-纵裂至第三脑室前部入路的显微解剖研究,为临床切除第三脑室前部肿瘤提供解剖学依据。方法10具成人尸头,在显微镜下经前额-纵裂至第三脑室前部进行解剖,用量规和测微尺进行各项数据测量。结果测量双侧嗅神经、颈内动脉之间的距离,视交叉前缘至鞍结节之间的距离,前交通动脉、Heubner回返动脉及它们发出穿支的长度、直径等数据。结论经前额-纵裂至第三脑室前部入路经生理间隙进入,对周围结构损伤小,是切除第三脑室前部肿瘤的较佳入路。
Objective To provide anatomical basis for clinical resection of the anterior third ventricle through the microanatomical study of the anterior approach - longitudinal dissection to the anterior third ventricle. Methods Ten adult cadaver heads were dissected under the microscope through the forehead - longitudinal cleft to the front of the third ventricle, and the data were measured with a gauge and a micrometer. Results The data of bilateral olfactory nerves, the distance between internal carotid arteries, the distance between the optic chiasm leading to the saddle nodules, the anterior communicating artery, the Heubner return artery, and the length and diameter of their perforating branches were measured. Conclusions The approach of the anterior approach - longitudinal rupture to the anterior third ventricle through the physiological gap with less damage to the surrounding structures is a better approach for resection of the anterior part of the third ventricle.