Evolving role of multidetector computed tomography in evaluation of arrhythmogenic right ventricular dysplasia/cardiomyopathy.

Published

Journal Article

The purpose of this study was to report 1 center's experience with multidetector computed tomography (MDCT) in the evaluation of patients suspected to have arrhythmogenic right ventricular (RV) dysplasia/cardiomyopathy (ARVD/C). RV dilatation/dysfunction is 1 of the most important criteria for establishing the diagnosis of ARVD/C. Cardiac magnetic resonance imaging (MRI) is the most preferred imaging modality for the diagnosis of ARVD/C. However, many patients with suspected ARVD/C have implantable cardioverter-defibrillators, prohibiting the use of MRI. Thirty-one patients (19 men; mean age 41 +/- 12 years) referred for evaluation of known or suspected ARVD/C had a complete reevaluation including contrast-enhanced cardiac MDCT at the center. Two patients underwent both cardiac MRI and MDCT. Seventeen of 31 patients met Task Force criteria for ARVD/C and were confirmed to have ARVD/C. Multidetector computed tomographic images were analyzed for qualitative and quantitative characteristic findings of ARVD/C. Increased RV trabeculation (p <0.001), RV intramyocardial fat (p <0.001), and scalloping (p <0.001) were significantly associated with the final diagnosis of ARVD/C. RV volumes, RV inlet dimensions, and RV outflow tract surface area were increased in patients with ARVD/C compared with patients who did not meet the criteria. RV and left ventricular functional analysis was performed in 2 patients. In conclusion, cardiac MDCT has a strong potential to detect many qualitative and quantitative abnormalities of the right ventricle in patients with ARVD/C. Limitations include implantable cardioverter-defibrillators and motion artifacts, along with well-known radiation and contrast-induced reaction.

Full Text

Duke Authors

Cited Authors

  • Bomma, C; Dalal, D; Tandri, H; Prakasa, K; Nasir, K; Roguin, A; Piccini, J; Dong, J; Mahadevappa, M; Tichnell, C; James, C; Lima, JAC; Fishman, E; Calkins, H; Bluemke, DA

Published Date

  • July 1, 2007

Published In

Volume / Issue

  • 100 / 1

Start / End Page

  • 99 - 105

PubMed ID

  • 17599449

Pubmed Central ID

  • 17599449

International Standard Serial Number (ISSN)

  • 0002-9149

Digital Object Identifier (DOI)

  • 10.1016/j.amjcard.2007.02.064

Language

  • eng

Conference Location

  • United States