应用CT测量了60例(男30,女30)不同体型成人的小脑延髓池安全穿刺深度、颈围、颈前后径、颅前后径.统计得出了小脑延髓池安全穿刺深度为:男性瘦长型为3.45士0.33cm;中间型为398土0.41cm;矮胖型为4.76土0.62cm;女性瘦长型为3.00土0.29cm;中间型为3.58士0.56cm;矮胖型为4.17±0.52cm.同时对小脑延髓池安全穿刺深度与颈围、颈前后径、颅前后径的相关系数和回归方程进行了统计学处理. The CT depth, neck circumference, anteroposterior diameter and anterior and posterior cranial diameter of cerebellar cistern were measured in 60 cases (male 30, female 30) of different body types using CT.The statistics shows that the safe penetration depth of cerebellar cistern is as follows: male slender Is 3.45 ± 0.33cm; the middle is 398 ± 0.41cm; the short-fat is 4.76 ± 0.62cm; the female is 3.00 ± 0.29cm; the middle is 3.58 ± 0.56cm; the short-fat is 4.17 ± 0.52cm. The correlation between the depth of paracentesis and the neck circumference, anteroposterior diameter and anterior and posterior diameter of cerebellopontine cistern were analyzed statistically.