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Three‐Dimensional Fast Acquisition With Sonographically Based Volume Computer‐Aided Analysis for Imaging of the Fetal Heart at 18 to 22 Weeks' Gestation
Author(s) -
Cohen Leeber,
Mangers Kristie,
Grobman William A.,
Gotteiner Nina,
Julien Svena,
Dungan Jeffrey,
Fonseca Linda,
Platt Lawrence D.
Publication year - 2010
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.2010.29.5.751
Subject(s) - medicine , odds ratio , confidence interval , population , gestation , radiology , fetus , abdomen , fetal echocardiography , fetal position , logistic regression , nuclear medicine , obstetrics , pregnancy , prenatal diagnosis , environmental health , biology , genetics
Objective. The purpose of this study was to determine how frequently cardiac images derived from 3‐dimensional (3D) volume sets, acquired by fast acquisition and evaluated with sonographically based volume computer‐aided analysis (sonoVCAD), were satisfactory for prenatal screening at 18 to 22 weeks' gestation. Methods. A prospective study of 100 women with singleton pregnancies was undertaken. Three fast acquisition 3D volume sets were obtained from each patient. Four reviewers independently evaluated the 4‐chamber and 5 extracted VCAD views. Factors contributing to unsatisfactory screening were also evaluated. Results. The frequency with which adequate views for cardiac screening could be obtained varied widely; some single views, such as that of the stomach, were well seen frequently, whereas others, such as the ductal arch, were well seen significantly less frequently ( P < .05). A satisfactory screening examination, defined as a visualized 4‐chamber, left ventricular outflow tract, right ventricular outflow tract, and axial stomach view, was obtained for 43% to 65% of patients (dependent on reviewer). Logistic regression revealed that obesity (odds ratio, 3.0; 95% confidence interval, 1.7–5.0) and a fetus with the spine toward the maternal abdomen (odds ratio, 1.7; 95% confidence interval, 1.1–2.5) were independently associated with an unsatisfactory screening examination Conclusions. Three‐dimensional fast acquisition volumes evaluated with sonoVCAD did not allow a satisfactory fetal cardiac screening examination to be obtained a high percentage of the time in a general obstetric population during the second trimester. Certain patient factors, such as body habitus and fetal position, are associated with unsatisfactory 3D imaging.