Comparison study of harmonic imaging (HI) and fundamental imaging (FI) in fetal echocardiography |
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| Authors: | Zhao Bo-wen Tang Fu-gang Shou Jin-duo Xu Hai-shan Lu Jiang-hong Fan Miao-ying Fan Xiao-min Pan Mei |
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| Institution: | (1) Department of Diagnostic Ultrasound, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, 310016 Hangzhou, China |
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| Abstract: | Objectives: To directly compare the quality of harmonic imaging (HI) and fundamental imaging (FI) in fetal echocardiography
and to determine any difference in image quality between the two modalities. Methods: Fetal echocardiograms were performed
with the use of FI and HI in 58 fetuses, image quality and visualization of left and right atria, left and right ventricles,
mitral and tricuspid valves, aortic and pulmonary valves, left and right ventricular outflow tracts were evaluated and compared
between FI and HI. Results: Mean HI scores were higher than mean FI scores (2.73±0.43 vs 2.16±0.69,P<0.001) for all the cardiovascular structures evaluated. Compared with FI, HI improved the image quality and visualization
of fetal cardiac structures in subjects with both good (2.73±0.43 vs 2.88±0.32,P<0.001) and suboptimal (1. 65±0.41 vs 2.58±0.47,P<0.001) echocardiographic windows. The interobserver correlation coefficient for the grading scores was 0.74 (P<0.001). Conclusions: harmonic imaging enhances and improves the image quality of fetal echocardiography; and has important
potential role in cardiac imaging in the fetus. |
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| Keywords: | Fetal echocardiography Fundamental imaging (FI) Harmonic imaging (HI) |
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