Tetralogy of Fallot: Imaging of common and uncommon associations by multidetector CT

To demonstrate the superior role of multidetector computed tomography (MDCT) in delineation of the extracardiac vascular abnormalities including the pulmonary arterial tree, major aortopulmonary collateral arteries (MAPCAs), patent ductus arteriosus (PDA), and also the detection of the common and un...

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Bibliographic Details
Published in:Egyptian journal of radiology and nuclear medicine 2011-12, Vol.42 (3-4), p.289-295
Main Authors: Zakaria, Rania H., Barsoum, Nadine R., Asaad, Ramy E., El-Basmy, Ayman A., Azab, Amr O.
Format: Article
Language:English
Subjects:
Cardiac radiology
Multidetector CT
Pediatric cardiology
Tetralogy of Fallot
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Summary:To demonstrate the superior role of multidetector computed tomography (MDCT) in delineation of the extracardiac vascular abnormalities including the pulmonary arterial tree, major aortopulmonary collateral arteries (MAPCAs), patent ductus arteriosus (PDA), and also the detection of the common and uncommon findings in Fallot Tetralogy cases for proper pre-surgical evaluation. A retrospective study of all multidetector CT images acquired to evaluate suspected cases of Tetralogy of Fallot sent by their respective referring physicians between April 2009 and August 2010. A total of 23 cases were included in this study. MDCT protocol, image analysis and calculations used in the diagnosis are explained in detail. Detailed explanation of the MDCT imaging findings in the 23 cases with Tetralogy of Fallot, as well as the common and uncommon associations of the disease, namely pulmonary atresia, MAPCAs, PDAs, atrial septal defects (ASDs), right sided aortic arch, and a few less common associations. A customized approach to MDCT imaging improves the diagnostic accuracy and reduces unneeded prolongation of the study and sedation times. A careful preoperative perceptive of the complex cardiovascular anatomy in patients with Tetralogy of Fallot aids in exposing the patient to a directed and prepared surgical approach.
ISSN:0378-603X
DOI:10.1016/j.ejrnm.2011.07.003