Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结分析46例胸锁乳突肌(SCM)肿块的超声检查资料,分析其大小、内部回声及多普勒血流信号。