Document Detail

Comparison of angiography, duplex sonography and intravascular ultrasound for the graduation of femoropopliteal stenoses before and after balloon angioplasty.
MedLine Citation:
PMID:  17169696     Owner:  NLM     Status:  MEDLINE    
The graduation of femoropopliteal stenoses by either digital subtraction angiography (DSA) or duplex sonography remains challenging, particularly after percutaneous transluminal angioplasty (PTA). More accurate assessment of stenosis might be achieved with intravascular ultrasound (IVUS). We investigated the relationship between DSA, IVUS and duplex before and after 32 femoropopliteal PTAs. Over the whole range of stenoses, peak systolic velocity (PSV) and peak velocity ratio (PVR) correlated better with DSA-stenosis (R(2) = .72 and 0.74, respectively, p < 0.01) than with IVUS-stenosis (R(2) = 0.58 and 0.50, p < 0.01). Within the subgroup of preinterventional (51 to 99%) stenoses, PVR was significantly correlated only with DSA-stenosis (R(2) = 0.60, p < 0.01). Severe dissection after PTA was associated with a disproportionate rise in PSV and large discrepancies between IVUS and DSA. Unexpectedly, our data show that intrastenotic flow acceleration assessed by duplex sonography correlates better with DSA- than with IVUS-stenosis. The concordance between duplex sonography, DSA and IVUS was particularly weak in postinterventional measurements, casting some doubt on the reliability of these methods for the assessment of residual stenosis after femoropopliteal PTA.
Federico Tatò; Ulrich Hoffmann; Christoph Weber; Maximilian Reiser; Johannes Rieger
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Ultrasound in medicine & biology     Volume:  32     ISSN:  0301-5629     ISO Abbreviation:  Ultrasound Med Biol     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-15     Completed Date:  2007-03-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0410553     Medline TA:  Ultrasound Med Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1837-43     Citation Subset:  IM    
Division of Vascular Medicine of the Medical Policlinic, Ludwig-Maximilians University of Munich, Munich, Germany.
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MeSH Terms
Angiography, Digital Subtraction / methods
Angioplasty, Balloon / methods*
Arterial Occlusive Diseases / radiography,  therapy,  ultrasonography*
Blood Flow Velocity / physiology
Endosonography / methods
Femoral Artery / radiography,  ultrasonography*
Popliteal Artery / radiography,  ultrasonography*
Ultrasonography, Doppler, Duplex / methods
Ultrasonography, Interventional / methods

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