论文部分内容阅读
测量3250例成尸的大脑镰和小脑幕.结果:大脑镰前端最窄处平均为1.56±0.26cm;中间最宽处平均为5.53±0.98cm;前半部平均厚度为0.21±0.04mm;后半部平均厚度为0.32±0.05mm;上缘长度平均为29.06±8.82cm;下游离缘平均为16.05±4.61cm;自然缺口占33%.大脑镰的小静脉分别注入上、下矢状窦;后部有粗大的交通支.约占9.6%.小脑幕最宽处(横径)平均为9.57±2.10cm:前后径平均为4.80±1.21cm:厚度平均为0.35±0.02mm;自然缺口少见.小脑幕的静脉细小,多位于前内侧区;小脑幕窦直径在2～10mm之间,其出现率占侧别的58%,小脑幕外侧半血管分布较少,可视为经小脑幕手术切口的“相对安全区”.
3250 adult falx and cerebellum were measured.Results: The average width of the front of the falx was 1.56 ± 0.26cm, the average width was 5.53 ± 0.98cm, the average thickness of the front half was 0.21 ± 0.04mm, The average thickness of the Ministry of the sickle was 0.32 ± 0.05mm, the average length of the upper edge was 29.06 ± 8.82cm, the average of the downstream edge was 16.05 ± 4.61cm, and the natural gap accounted for 33% Department has a thick traffic branch .About 9.6% .Cute cerebellar widest (mean diameter) average of 9.57 ± 2.10cm: anteroposterior diameter of an average of 4.80 ± 1.21cm: the average thickness of 0.35 ± 0.02mm; rare natural gaps .Cerebral Curtain veins small, mostly located in the anteromedial region; the diameter of the cerebellum sinus in between 2 ~ 10mm, the appearance of the rate of 58% on the side of the cerebellar tentorial lateral distribution of less blood vessels, can be considered by the cerebellar incision “Relatively safe area.”