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Differential branch pulmonary artery regurgitation fraction

Matthew A Harris, Kevin K Whitehead, Matthew J Gillespie, Timothy Y Liu, Michael T Cosulich, David C Shin, Elizabeth Goldmuntz, Paul M Weinberg, Mark A Fogel
OBJECTIVES: We sought to investigate whether differential branch pulmonary artery (BPA) regurgitation correlates with differences in BPA anatomy and physiology. BACKGROUND: Patients with repaired conotruncal anomalies such as Tetralogy of Fallot frequently have residual BPA stenosis or BPA size differences. Previous reports have demonstrated an increased left pulmonary artery (LPA) regurgitant fraction (RF) in these patients. METHODS: We retrospectively reviewed 76 consecutive cardiac magnetic resonance (CMR) studies for BPA size and phase-contrast magnetic resonance data, including 13 consecutive patients who underwent both CMR and catheterization...
May 2011: JACC. Cardiovascular Imaging
I-Seok Kang, Andrew N Redington, Leland N Benson, Christopher Macgowan, Emanuela R Valsangiacomo, Kevin Roman, Christian J Kellenberger, Shi-Joon Yoo
BACKGROUND: The importance of pulmonary regurgitation (PR) after repair of tetralogy of Fallot (TOF) is increasingly recognized, but little is known regarding its underlying mechanisms. This phase-contrast cine magnetic resonance (PC MR) study was performed to evaluate the relative contribution of each lung to total regurgitant volume. METHODS AND RESULTS: Twenty-two patients with significant PR underwent a PC MR 3 to 16 years after repair of TOF. Regurgitant fraction of the main pulmonary artery was 39+/-10%...
June 17, 2003: Circulation
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