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The run-off resistance (ROR) assessed on MR angiograms may serve as a valid scoring system in patients with symptomatic peripheral arterial disease (PAD) and correlates with the ankle-brachial pressure index (ABI).
MedLine Citation:
PMID:  21530122     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To investigate the correlation between the hemodynamic parameter ankle-brachial pressure index (ABI) and the run-off resistance (ROR) assessed on MR angiograms (MRA) in patients with peripheral arterial disease (PAD) Fontaine Stage I and II and its potential as reliable reporting system in clinical routine. METHODS: Contrast-enhanced MRA was performed in 321 PAD patients using a 1.5T MR scanner with moving bed technique. The ROR and resting ABI were determined in each patient's leg and correlation analysis was performed using the Pearson test. RESULTS: A significant negative correlation (r=-.513; p<.001) between ROR (mean 11.03±5.42) and resting ABI (mean .81±.26) was identified. An even more pronounced correlation was found in patients younger than median age who had higher ABI values (r=-.608; p<.001). CONCLUSION: The ROR scoring system evaluated in this series correlates better with the ABI than previously published scoring systems and could be suggested as reporting system for routine MRA evaluation.
Authors:
O Gorny; W Santner; G Fraedrich; W Jaschke; A Greiner; M F Schocke
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-27
Journal Detail:
Title:  European journal of radiology     Volume:  -     ISSN:  1872-7727     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106411     Medline TA:  Eur J Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Vascular Surgery, Medical University Innsbruck, Anichstrasse 35, A-6020 Innsbruck, Austria.
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