Document Detail


Magnetic resonance imaging versus computed tomography for characterization of pulmonary vein morphology before radiofrequency catheter ablation of atrial fibrillation.
MedLine Citation:
PMID:  19932789     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The accurate assessment of pulmonary vein (PV) anatomy is important in planning radiofrequency catheter ablation (RFCA) of atrial fibrillation (AF). The aim of the present study was to perform a head-to-head comparison of magnetic resonance imaging (MRI) and multislice computed tomography (CT) for the evaluation of PV morphology before RFCA of AF. Contrast-enhanced MRI (on a 1.5-T system) and multislice CT (on a dual-source system) were performed for the evaluation of the PVs in 44 consecutive patients (31 men, mean age 56 +/- 10 years) admitted for RFCA of drug-refractory AF. Data on PV anatomy, ostial branching pattern, and ostial dimensions were compared between MRI and multislice CT. Variant PV anatomy was observed in 21 patients (48%) with the 2 imaging approaches. The incidence of PV ostial branching, as assessed with MRI and multislice CT, was higher on the right and more common in the inferior than superior vein. Agreement between the 2 imaging modalities for the evaluation of variant PV anatomy (kappa = 0.87, 95% confidence interval 0.77 to 0.97) and ostial branching pattern (kappa = 0.84, 95% confidence interval 0.75 to 0.93) was nearly perfect. Assessment of PV ostial cross-sectional area as well as maximal and minimal ostial diameters resulted in strong agreement and correlation (r(2) = 0.75 to 0.99, p <0.001 for all) between the 2 imaging approaches. In conclusion, MRI and multislice CT of the PVs appear to provide similar and detailed anatomic and quantitative information before RFCA of AF.
Authors:
Ashraf Hamdan; Kriatselis Charalampos; Rainer Roettgen; Ernst Wellnhofer; Rolf Gebker; Ingo Paetsch; Cosima Jahnke; Bernhard Schnackenburg; Min Tang; Hong Gerds-Li; Eckart Fleck
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-10-14
Journal Detail:
Title:  The American journal of cardiology     Volume:  104     ISSN:  1879-1913     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-11-25     Completed Date:  2010-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1540-6     Citation Subset:  AIM; IM    
Affiliation:
Department of Internal Medicine/Cardiology, German Heart Institute Berlin, Berlin, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Atrial Fibrillation / diagnosis*,  surgery*
Catheter Ablation*
Cohort Studies
Contrast Media / diagnostic use
Female
Humans
Magnetic Resonance Imaging*
Male
Middle Aged
Predictive Value of Tests
Preoperative Care
Pulmonary Veins / pathology*,  radiography*
Sensitivity and Specificity
Severity of Illness Index
Tomography, X-Ray Computed*
Chemical
Reg. No./Substance:
0/Contrast Media

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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