THE VALUES
OF TRANSTHORACIC THREE-DIMENSIONAL ECHOCARDIOGRAPHY IN THE DIAGNOSIS OF
CONOTRUNCAL DEFECTS IN CHILDREN
Chen GZ, Sun K,
Zhang YQ, et al,
Shanghai Children’s Medical Center, Shanghai,
China
Objective:
To
evaluate the diagnostic value of transthoracic dynamic three-dimensional
echocardiography (3DTTE) in children with conotruncal defects (CTD).
Methods: 36 cases of children
(19 male,17 female ,aged 3.83±2.32 years) with conotruncal defects,
including 15 cases of double outlet of right ventricle (DORV), 5 cases of
complete transposition of the great arteries (D-TGA), corrected
transposition of the great arteries (L-TGA) and Tetralogy of Fallot (TOF),
diagnosed by new designed ten three-dimensional echocardiographic section
views. Angiocardiography and/or post-operative diagnosis was served as
“Gold Standard”.
Results: Three-dimensional
reconstruction was possible in 32/36 patients (88.89%). All the diagnoses
were confirmed by Angiocardiography and 16/36 patients had received
operation. Additional information was provided in the 6/16 patients. In
3/16 patients, two-dimensional echocardiographic (2DE) diagnosis was
corrected by 3DTTE. The diagnosis of 3DTTE complied with the operation
findings in the 16 operated patients. En-face view of atrial (ventricular)
septum from right ventricle and left ventricle, en-face view of
atrial-ventricular valve and whole-heart oblique frontal planes of 3DTTE
showed the great advantages in the diagnosis of CTD.
Conclusions: The identified images of 3DTTE section
views could demonstrate detail spatial information of conotruncal
malformations. Some of the
results were more informative than that in 2DE.