Hemodynamic Change in Pulmonary Vein Stenosis after Radiofrequency Ablation: Assessment with Magnetic Resonance Angiography
Korean Journal of Radiology
;
: 816-819, 2012.
Article
in English
| WPRIM
| ID: wpr-39910
ABSTRACT
We present a case of pulmonary vein (PV) stenosis after radio-frequency (RF) ablation, in which a hemodynamic change in the pulmonary artery was similar to that of congenital PV atresia on time-resolved contrast-enhanced magnetic resonance angiography (TR-MRA). A 48-year-old man underwent RF ablation due to atrial fibrillation. The patient subsequently complained of hemoptysis, dyspnea on exertion, and right chest pain. Right PV stenosis after catheter ablation was diagnosed through chest computed tomography and lung perfusion scan. Pulmonary TR-MRA revealed the pulmonary artery via systemic arterial collaterals and draining systemic collateral veins. On a velocity-encoded cine image, the flow direction of the right pulmonary artery was reversed in the diastolic phase and the left pulmonary artery demonstrated continuous forward flow throughout the cardiac cycle. These hemodynamic changes were similar to those seen in congenital unilateral PV atresia.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pulmonary Artery
/
Pulmonary Veins
/
Atrial Fibrillation
/
Blood Flow Velocity
/
Pulmonary Circulation
/
Catheter Ablation
/
Magnetic Resonance Angiography
/
Constriction, Pathologic
/
Contrast Media
Limits:
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2012
Type:
Article
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