McLeary R D, Kuhns L R, Barr M
Radiology. 1984 May;151(2):439-42. doi: 10.1148/radiology.151.2.6709916.
The transverse diameter of the cerebellum was measured with ultrasound in 265 normal fetuses ranging from 15 to 39 weeks gestational age and found to correlate closely with the biparietal diameter. The transverse diameter may be useful in estimating fetal age, particularly in breech presentation where extrinsic pressure may deform the skull and decrease the biparietal diameter. Failure to demonstrate the cerebellum could be a sign of Arnold-Chiari malformation or Dandy-Walker cyst.
在265例孕龄为15至39周的正常胎儿中，用超声测量了小脑横径，发现其与双顶径密切相关。小脑横径在估计胎儿年龄方面可能有用，特别是在臀位时，外部压力可能使颅骨变形并减小双顶径。未能显示小脑可能是阿诺德 - 奇阿利畸形或丹迪 - 沃克囊肿的迹象。
