A preliminary study of 24-segment spherical indexes of fetal ventricles in the middle and late trimestries by automatic fetal heart quantification
10.3760/cma.j.cn131148-20191226-00800
- VernacularTitle:胎儿心脏定量分析技术对中晚孕胎儿心室24节段球形指数的初步研究
- Author:
Wengang LI
1
;
Bowen ZHAO
;
Mei PAN
;
Ran CHEN
;
Xiaohui PENG
;
Bei WANG
;
Wanyu HU
;
Xiaolu SUN
Author Information
1. 浙江大学医学院附属邵逸夫医院超声科 浙江省胎儿心脏超声诊断技术指导中心 浙江大学邵逸夫临床医学研究所，杭州 310016；中国科学院大学宁波华美医院超声科 315010
- From:
Chinese Journal of Ultrasonography
2020;29(7):586-591
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the clinical application value of fetal heart quantification (fetal HQ) in the analysis of 24-segment spherical index (SI) of fetal heart in normal second and third trimestries.Methods:In July 2019, sixty-five normal singletons with gestational age (GA) of 28(24, 31) weeks were examined by echocardiography in Sir Run Run Shaw Hospital. The global spherical index (GSI) of the heart was measured and the dynamic images of the standard four chamber view were collected. Twenty-four-segment SI of the left and right ventricles were measured by using the fetal HQ analysis system and the correlation between SI and gestational age was analyzed.Results:There were no significant correlations between GSI, SI of left and right ventricles and gestational age ( r s=-0.22-0.14, all P>0.05). The SI of the first segment of left ventricle was lower than those of the other 23 segments (all P<0.05). There were no significant differences of SI among the second to the eleventh segments of the left ventricle (all P>0.05). In the 13th to the 24th segments of the left ventricle, the closer to the apex of the heart, the greater the SI of the segment were noted (all P<0.05). For the right ventricle, the closer to the apex of the heart, the greater the SI of the 4th to the 24th segments were found (all P<0.05), and there were no significant differences in SI among the first to third segment( P>0.05). The success rate of fetal HQ software was 95.4%. Conclusions:The 24-segment SI of RV and LV provides a feasible and reliable quantitative method which allows for the assessment of fetal heart function from the four-chamber view.
