Document Detail


CT evaluation of pulmonary venous anatomy variation in patients undergoing catheter ablation for atrial fibrillation.
MedLine Citation:
PMID:  21237413     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
To characterize pulmonary vein (PV) anatomy and the relative position of the PV ostia to the adjacent thoracic vertebral bodies, two readers reviewed 176 computed tomography pulmonary venous studies. PV ostial dimensions were measured and PV ovality assessed. Anatomical variations in PV drainage were noted. The position of the PV ostium relative to the nearest vertebral body edge was recorded. Right PV ostia were significantly more circular than the left (p<.001). Anatomical variability was greater for right PVs: 82% of patients had 2 ostia, 17% had 3 ostia, 0.5% had 4 ostia and 0.5% a common ostium. For left PVs, 91% of patients had 2 ostia, 8.5% a common ostium and 0.5% 3 ostia. Mean ostial distances from vertebral margin were: right PVs 3.62±7.48 mm; left PVs 3.84±8.46 mm (p=.72). 65% of right upper PV, 60.5% of right lower PV, 51% of left upper PV and 57% of left lower PV ostia were positioned lateral to vertebral bodies. Right PV ostia are rounder than left-sided and right PV drainage is more variable. As a significant proportion of PV ostia overlap the vertebral bodies, prior anatomical evaluation by CT can assist catheter ablation procedures for atrial fibrillation (AF), especially when performed under fluoroscopy.
Authors:
Chandani Thorning; Mohamad Hamady; Jonathan Voon Ping Liaw; Christoph Juli; Phang Boon Lim; Ranju Dhawan; Nicholas S Peters; D Wyn Davies; Prapa Kanagaratnam; Mark D O'Neill; Andrew R Wright
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical imaging     Volume:  35     ISSN:  1873-4499     ISO Abbreviation:  Clin Imaging     Publication Date:    2011 Jan-Feb
Date Detail:
Created Date:  2011-01-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911831     Medline TA:  Clin Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
Department of Radiology, St Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK.
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