Transposition of Great Arteries Diagnosed at 20 Weeks of Gestation: HDlive Flow Features
Toshiyuki Hata, Aya Koyanagi, Riko Takayoshi, Yuichiro Nakai, Takahito Miyake
3D/4D fetal echocardiography, HDlive Flow, Prenatal diagnosis, STIC, Transposition of great arteries
Citation Information :
Hata T, Koyanagi A, Takayoshi R, Nakai Y, Miyake T. Transposition of Great Arteries Diagnosed at 20 Weeks of Gestation: HDlive Flow Features. Donald School J Ultrasound Obstet Gynecol 2021; 15 (3):215-217.
We present a case of transposition of great arteries (TGA) diagnosed prenatally using HDlive Flow with spatiotemporal image correlation (STIC) at 20 weeks and 5 days of gestation. Right-sided stomach was noted on routine second-trimester screening. Ventricular septal defect, pericardial effusion, and parallel arrangement of great arteries were identified using two-dimensional fetal echocardiography and color Doppler. HDlive Flow with STIC clearly showed an aorta exiting the right ventricle and a pulmonary artery exiting the left ventricle in parallel. The diagnosis of TGA was confirmed antenatally. HDlive Flow with STIC should be an adjunctive technology to conventional fetal echocardiography for the prenatal diagnosis of TGA.
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