Document Detail

Segmental approach to imaging of congenital heart disease.
MedLine Citation:
PMID:  20228325     Owner:  NLM     Status:  MEDLINE    
The segmental approach, which is widely used in the imaging work-up of congenital heart disease, consists of a three-step evaluation of the cardiac anatomy. In step 1, the visceroatrial situs is determined. Visceroatrial situs refers to the position of the atria in relation to the nearby anatomy (including the stomach, liver, spleen, and bronchi). Three different anatomic configurations may be observed: situs solitus (normal), situs inversus (inverted), or situs ambiguus (ambiguous). In step 2, the left- or rightward orientation of the ventricular loop is evaluated, and the positions of the ventricles are identified on the basis of their internal morphologic features. In step 3, the position of the great vessels is determined first, and any abnormalities are noted. Abnormalities in the origin of the great vessels, or conotruncal anomalies, are predominantly of three types: D-transposition (dextrotransposition), L-transposition (levotransposition), and D-malposition with double outlet right ventricle. Next, the relationships between the atria and ventricles and the ventricles and great vessels are determined at two levels: atrioventricular (concordant, discordant, ambiguous, double inlet, absence of right or left connection) and ventriculoarterial (concordant, discordant, double outlet). Last, a search is performed for any associated abnormalities of the cardiac chambers, septa, outflow tract, and great vessels. By executing these steps sequentially during image review, the radiologist can achieve a more accurate interpretation. Multiplanar reconstructions of cross-sectional image data obtained with computed tomography or magnetic resonance imaging are particularly useful for evaluating congenital heart disease.
Chantale Lapierre; Julie Déry; Ronald Guérin; Loïc Viremouneix; Josée Dubois; Laurent Garel
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Radiographics : a review publication of the Radiological Society of North America, Inc     Volume:  30     ISSN:  1527-1323     ISO Abbreviation:  Radiographics     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-15     Completed Date:  2010-06-23     Revised Date:  2010-11-22    
Medline Journal Info:
Nlm Unique ID:  8302501     Medline TA:  Radiographics     Country:  United States    
Other Details:
Languages:  eng     Pagination:  397-411     Citation Subset:  IM    
Department of Medical Imaging, CHU Sainte-Justine-Mother and Child University Hospital Center, 3175 Cote Ste-Catherine, Montreal, QC H3T1C5, Canada.
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MeSH Terms
Diagnostic Imaging / methods*
Heart Defects, Congenital / diagnosis*
Image Enhancement / methods*
Image Interpretation, Computer-Assisted / methods*
Subtraction Technique*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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