Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2015
Utility of a Single 3-Vessel View in the Evaluation of the Ventricular Outflow Tracts.
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Brandt Justin S, Wang Eileen, Rychik Jack, Soffer Debbra, McCann Margaret L, Schwartz Nadav
Аннотация
OBJECTIVES: Prenatal diagnosis of congenital heart disease can improve neonatal outcomes. The purpose of this study was to evaluate the utility of an isolated 3-vessel view image in evaluating the ventricular outflow tracts.
METHODS: Three-vessel view images were prospectively collected from consecutive patients referred to a regional fetal heart center for fetal echocardiography between gestational ages of 18 weeks and 23 weeks 6 days. Cardiac malformations were categorized as anomalies of the outflow tracts, the 4-chamber view, or combined lesions. A single representative still-frame 3-vessel view image was reviewed by 2 independent and blinded observers who were asked to label each image as "normal" or "abnormal." Test characteristics of the isolated 3-vessel view were calculated.
RESULTS: During the study period, 122 consecutive patients (139 fetuses) underwent fetal echocardiography. Eight fetuses with fetal chest anomalies and 12 fetuses with oblique images were excluded. Thirty-four of 119 fetuses (28.6%) had abnormal echocardiograms, including 11 outflow tract anomalies and 16 combined anomalies. Using the 3-vessel view alone, both reviewers achieved 91% sensitivity for the detection of isolated outflow tract anomalies and mean sensitivity of 88% for combined anomalies. All cases of tetralogy of Fallot and transposition of the great arteries were identified in the 3-vessel view.
CONCLUSIONS: A single 3-vessel view image can serve as a representative view of the outflow tracts and can show ventricular outflow tract anomalies with high sensitivity. Given that the conventional outflow tract views can be difficult to obtain, the 3-vessel view may serve as an effective first-line view when evaluating the ventricular outflow tracts for congenital heart disease.
METHODS: Three-vessel view images were prospectively collected from consecutive patients referred to a regional fetal heart center for fetal echocardiography between gestational ages of 18 weeks and 23 weeks 6 days. Cardiac malformations were categorized as anomalies of the outflow tracts, the 4-chamber view, or combined lesions. A single representative still-frame 3-vessel view image was reviewed by 2 independent and blinded observers who were asked to label each image as "normal" or "abnormal." Test characteristics of the isolated 3-vessel view were calculated.
RESULTS: During the study period, 122 consecutive patients (139 fetuses) underwent fetal echocardiography. Eight fetuses with fetal chest anomalies and 12 fetuses with oblique images were excluded. Thirty-four of 119 fetuses (28.6%) had abnormal echocardiograms, including 11 outflow tract anomalies and 16 combined anomalies. Using the 3-vessel view alone, both reviewers achieved 91% sensitivity for the detection of isolated outflow tract anomalies and mean sensitivity of 88% for combined anomalies. All cases of tetralogy of Fallot and transposition of the great arteries were identified in the 3-vessel view.
CONCLUSIONS: A single 3-vessel view image can serve as a representative view of the outflow tracts and can show ventricular outflow tract anomalies with high sensitivity. Given that the conventional outflow tract views can be difficult to obtain, the 3-vessel view may serve as an effective first-line view when evaluating the ventricular outflow tracts for congenital heart disease.