Radiographic pelvimetry is of limited value in managing most cephalic presentations.

大多露放射骨盆测量价值有限。

Dolichocephaly (i.e., a long, thin head) is present on this sonogram, and can only be revealed by determining the cephalic index.

图中所见长(特别长、扁)，只能用来定量诊断。

Objective To compare the successful rate of two methods of arterial puncture of cephalic arteria and arteria femoralis for blood gas analysis.

目比较皮动脉穿刺和股动脉穿刺两种方法采血进行血气分析检查穿刺成功率。