To fetuses with tumors, Doppler echocardiography is valuable in quantifying fetal cardiac function by calculating such indexes as FS and CCO,and assessing both intracardiac and peripheral hemodynamics.

• 应用彩色多普勒超声心动图诊断胎儿肿瘤,可探讨与CHF的相关因素。 通过主动脉和肺动脉输出量(CO)的总和CCO可无创获得心输出量的指标及计算FS以达到量化胎儿心功能的目的,并可评价心内及外周血流动力学变化。