[Computerized tomography in the diagnosis of congenital heart disease].
The aim of the work was to evaluate the possibility to use CT techniques (SCT and MRT) for the diagnosis of congenital heart disease. A total of 426 patient aged 0-54 years were examined (171 by MRT and 255 by SCT. SCT of the heart with bolus injection of a contrast medium was performed on an Evolution C-150 superfast tomograph in the step-scanning regime and prospective synchronization with ECG (slice thickness 1.5-3 mm). Fasting SCT was used to examine children in the first year of life during quiet (unforced) breathing. Contrast material (Omnipack-300, 350; Visipack-270, 320) was administered at a dose of 1.5-2.0 ml/ kg b.w. at 0.2-0.6 ml/s. MRT was performed using a conventional MR tomograph with a 1 T field and pulsed spin-echo sequences synchronized with ECG for obtaining the anatomic picture and gradient echo-signals (cine-MRT) for the assessment of functional parameters (slice thickness 4-7 mm). Babies were examined under medicamentous sedation. All images were treated and analysed using an Advantage Windows 2.0 workstation and a program package for heart image analysis. A rational procedure of CT and image analysis was developed in the course of the study. It provided data on the formation of all segments and intercommunications of the heart, mutual localization of its cavities and major vessels, permitted to perform morphometry of selected cardiac structures and detect anatomic defects. The informative and diagnostic value of methods for comprehensive evaluation of the heart and mediastinum in patients with congenital heart disease was assessed. Methods of choice for the diagnosis of abnormalities and follow-up of the patients in different periods after surgery were identified.
Makarenko
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Iurpol'skaia
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D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult