时间-空间相关成像技术评估胎儿心脏收缩功能  

Evaluation of spatiotemporal image correlation on fetal cardiac systolic function in normal pregnancy

作　　者：赵旭[1,2] 杨娅[1] 李嵘娟[1] 

机构地区：[1]首都医科大学附属北京安贞医院超声科,100029 [2]民航总医院妇产科,北京100123

出　　处：《重庆医学》2013年第25期2961-2963,共3页Chongqing medicine

基　　金：首都医学发展科研基金资助项目(2007-2057)

摘　　要：目的探讨时间-空间相关成像技术(STIC)评估胎儿心脏收缩功能的价值。方法运用STIC技术采集160例健康孕妇胎儿的心动周期图像,后处理使用VOCAL法测量心室收缩末期和舒张末期容积,计算每搏心输出量(SV)、射血分数(EF)和每分心输出量(CO)。结果胎儿心室收缩末容积(VESV)、心室舒张末容积(VEDV)、SV和CO随孕周的增长而增加、射血分数(EF)不随孕周的变化而变化。胎儿右心室VESV、VEDV、SV、CO和EF均大于左心室。结论胎儿心脏收缩功能随孕周的增长而增加,右心收缩功能优于左心。Objective To investigate the evaluation value of spatiotemporal image correlation （STIC） on fetal cardiac systolic function. Methods The fetal cardiac cycle images were collected by the four-dimensional（4D） STIC ultrasound technique in 160 normal singleton pregnancies. The virtual organ computer-aided analysis （VOCAL） technique was used to measure the ventricular end-systolic volume （VESV） and ventricular end--diastolic volumes（VEDV）. The stroke volume（SV）, ejection fraction（EF） and cardiac output（CO） were calculated. Results VESV,VEDV together with SV and CO in normal pregnancy were increased with gestation week increase. EF remained constant with advancing gestational week. VESV, VEDV,SV,CO and EF of right ventricle were all larger than those of the left ventricle. Conclusion The fetal cardiac systolic function in normal pregnancy is increased with gestational age increase,the right heart systolic function is superior to the left heart.

关 键 词：超声检查 产前 超声心动描记术 多普勒 时间-空间复合成像 

分 类 号：R445.1[医药卫生—影像医学与核医学] R714.5[医药卫生—诊断学]