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目的:为神经内镜下经胼胝体-穹隆间入路切除第三脑室病变提供相关解剖学资料。方法:在手术显微镜及神经内镜下对25例国人尸头模拟经胼胝体-穹隆间入路,并测量相关解剖学数据。结果:冠矢点下方胼胝体厚度(7.22±0.32)mm,冠矢点前2cm下方穹隆至胼胝体下缘(8.65±1.64)mm,出现透明隔间腔19例(76%),6例中间块缺如(24%)。神经内镜经穹隆间进入第三脑室,脉络丛、前后连合、漏斗隐窝、中间块、中脑导水管开口等是第三脑室的重要“路标”。结论:神经内镜下经胼胝体-穹隆间入路有利于第三脑室和松果体区术野暴露,减少手术损伤,从而最大限度保留正常的解剖和神经功能。
OBJECTIVE: To provide anatomical data for the treatment of third ventricle lesions by intra-corpus callosal approach in neuroendoscopy. Methods: Twenty-five cadaver cadaver heads were enrolled in this study. The corpus callosum - intercavernosal approach was performed under operating microscope and endoscopic surgery. The related anatomic data were measured. Results: The thickness of the corpus callosum below the coronary artery was (7.22 ± 0.32) mm, and the lower edge of the corpus callosum below the crest of the coronary artery was 8.65 ± 1.64 mm. There were 19 cases (76%) of clear compartment and 6 cases Such as (24%). Neuroendoscopy into the third ventricle through the dome, choroid plexus, anterior commissure, funnel crypts, the middle block, midbrain aqueduct is the third ventricle, an important CONCLUSION: Endoscopic trans-corpus-luniva approach is beneficial for the exposure of the third ventricle and the pineal region, which can reduce the surgical injury and maximize the normal anatomic and neurological function.