DIAGNOSIS OF COMPLEX CONGENITAL HEART DISEASES WITH MAGNETIC
RESONANCE IMAGING AND THREE-DIMENSIONAL ECHOCARDIOGRAPHY
Pang YS, Huang GY, Liu YY, Yang YS
Children’s Hospital of Fudan University,
Shanghai, China
Objective: To
evaluate the diagnostic values of magnetic resonance imaging (MRI) and
three-dimensional echocardiography (3DE) in complex congenital heart
diseases (CCHD).
Methods: 83
patients with CCHD initially diagnosed by two-dimensional Doppler
echocardiography (2DE), aged 4.6±3.2
years in average, were studied. MRI was performed in 72 patients with
Superconductive Magnetic System . 3DE was performed in 31 patients using
HP/SONOS 5500 Ultrasonic Scanner and TomTec Echoview Work Station. The left
ventricular end-systolic volume (EDV) and end-diastolic volume (ESV),
stroke volume (SV) and ejection fraction (EF) were measured in 23 patients.
Results: Compared
with cardioangiography and surgical findings, MRI could correctly depict
the anatomic malformations in transposition of the great arteries,
coarctation of the aorta, interrupted aortic arch, tetralogy of Follot, pulmonary
atresia, double outlet right ventricle, trancus arteriousus, cardiac
malposition with complex malformations and pulmonary arteriovenous
fistulae, etc. 3DE was more accurate than 2DE in providing with the
information in both anatomic structures and systolic functions of the
heart. The EDV, ESV, SV and EF measured by 3DE were 25.89±7.36ml,
10.04±7.01ml,
15.85±6.57ml
and 0.61±0.05,
respectively, displaying excellent correlation with those measured with
cardiac catheterization.
Conclusion： MRI is invaluable in diagnosing CCHD, especially for
the abnormalities in great arteries. 3DE is of great value in displaying
the defects in the position of atria and ventricles, septa and valves and
is highly reliable in measuring left ventricular volume for CCHD.