Selective right ventricular angiocardiography is useful for distinguishing double-outlet right ventricle from tetralogy of Fallot by demonstrating the mitral-aortic relationship.
May aid angiographic distinction of DORV from TOF; leaves open validation against current imaging modalities.
The anatomic hallmark of a double-outlet right ventricle is the separation of the mitral and aortic valves by a band of myocardium. The two valves remain in contact with each other in tetralogy of Fallot no matter how far anteriorly the aorta is displaced. The mitral-aortic relationship can usually be well demonstrated in both anomalies by selective right ventricular angiocardiography.
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Murray Baron (1971) studied this question.
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