Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
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J Am Soc Echocardiogr · Jun 2005
Comparative Study Controlled Clinical TrialTransesophageal echocardiography in comparison with magnetic resonance imaging in the diagnosis of pulmonary vein stenosis after radiofrequency ablation therapy.
Doppler-derived flow velocity measured by transesophageal echocardiography (TEE) may overestimate pulmonary vein stenosis. We hypothesized that combining peak velocity with a stenotic flow pattern improves diagnosis compared with magnetic resonance imaging (MRI). ⋯ TEE Doppler measurements can be reliably used to detect or exclude significant pulmonary vein stenosis if the diagnosis is restricted to a combination of elevated peak velocity (> or = 110 cm/s) with turbulence and little flow variation.