%0 Journal Article
%T Multi-Detector CT Evaluation of Congenital Heart Disease
%A M. Motavali
%J Iranian Journal of Radiology
%D 2005
%I Tehran University of Medical Sciences
%X Introduction & Background: MDCT with ECG-synchronized images can successfully evaluate cardiac morphology and those types of congenital heart dis-ease mainly involving great vessels. Although echo-cardiography is the initial diagnostic modality for pa-tients with suspected congenital heart disease, it can be of limited value to delineate great artery and in-tracardiac anomalies, pulmonary veins, and coronary arteries in some patients. Patients & Methods: All MDCT evaluations were pre-ceded by consultation with our pediatric cardiology colleagues. Most of the studies were performed to answer specific anatomic questions raised by an in-conclusive echocardiographic or angiogeraphic evaluation. All studies were performed on an MDCT unit (Siemens, somatom sensation 10). In infants and small children, the sedation time for CT ranged be-tween 2 and 10 minutes. In all patients studied, MDCT was performed using a 0.75- to 5-mm slice thickness with 50% reconstruction overlap and a pith of 1. CT angiographic studies were performed with nonionic contrast with iodine concentrations of 240-300mg/ml administered at a dose of 2-4ml/kg and 50ml saline. The tracking device was placed on the specific anatomic part of greatest clinical interest. For all patients, multiple reconstructions were performed with MPR, MIP and VRT in different planes. Three-dimensional reconstructions were created for all pa-tients and reviewed with the referring cardiologist. Prospective or retrospective ECG-gating was per-formed in older patients when coronary artery anomalies were suspected. Conclusion: This abstract presents the MDCT appear-ance of many of the difficult congenital cardiac lesion seen in clinical practice. Multidetector technology provides important complementary information for the referring cardiologist. These technologic advances have produced diagnostic images with increased speed, markedly decreased sedation time, and ease of peripheral venous access.
%U http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/2205.pdf&manuscript_id=2205