Right ventricular morphology on catheter angiography: Variations and its implications for the diagnosis of arrhythmogenic right ventricular cardiomyopathy - 08/11/12
, Warren M. Smith, FRACP, Peter N. Ruygrok, FRACP, Christopher Occleshaw, FRCR
Corresponding author at: 44 Asciano Place, Bridgeman Downs, Brisbane, QLD 4035, Australia. Tel.: +61 7 54338888; fax: +61 7 54338700; mobile: +61 488406961.Résumé |
Background |
Catheter angiography is one modality used to diagnose right ventricular (RV) structural abnormalities in suspected arrythmogenic right ventricular dysplasia or cardiomyopathy (ARVC) patients. The appearance of the normal RV on angiography is poorly defined. This study aimed to assess RV morphology in a control group to define the range of normal appearances.
Methods |
RV angiography was performed in 46 subjects (mean age 59 years; 70% male) undergoing coronary angiography for suspected coronary artery disease. Qualitative assessment for RV dilatation, regional wall motion abnormalities (RWMAs), pattern of trabeculae, and presence of micro-aneurysms was performed. Right ventricular outflow tract (RVOT) diameter was measured.
Results |
Regional or global RV dilatation was considered to be present in 17 patients, RWMA in 13, an abnormal trabecular pattern in 10, and microaneurysms noted in two. The RVOT diameter ranged from 1.78 to 3.51cm in right anterior oblique view and 2.33 to 4.38cm in left anterior oblique view.
Conclusion |
The apparent prevalence of abnormal RV morphology in individuals who have no known RV pathology implies that detection of such is not necessarily of diagnostic significance in suspected ARVC. Significant inter-observer variation limits the usefulness of qualitative assessment; quantitative assessment is preferred therefore.
Le texte complet de cet article est disponible en PDF.Keywords : Right ventricle, Angiography, Arrhythmogenic right ventricular dysplasia, Cardiomyopathy
Plan
Vol 21 - N° 11
P. 700-705 - novembre 2012 Retour au numéro
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