Document Detail

Is duplex ultrasonography an effective single modality for the preoperative evaluation of peripheral vascular disease?
MedLine Citation:
PMID:  12516819     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to determine whether duplex ultrasonography can be used as an effective modality for the preoperative evaluation of lower-extremity arterial occlusive disease. The records of all patients undergoing both color flow duplex scanning and contrast arteriography of the lower extremities during a 13-month period were reviewed. Comparisons between the two modalities were made at the femoral, popliteal, and tibial artery levels. Sensitivity, specificity, positive predictive value, negative predictive value, and overall accuracy were calculated for duplex scanning using angiography as the gold standard. Three hundred fifteen arterial segments were evaluated. Color flow imaging overestimated the degree of stenosis in seven vessels and underestimated the degree of stenosis in four vessels. Overall duplex ultrasonography accurately determined lower-extremity arterial anatomy as defined by contrast arteriography with a sensitivity of 96.9 per cent, a specificity of 96.2 per cent, a positive predictive value of 94.6 per cent, a negative predictive value of 97.8 per cent, and an overall accuracy of 96 per cent. The accuracy of duplex ultrasonography must be determined in each individual vascular laboratory. Once this is satisfactorily accomplished color flow scanning may be used as the single imaging modality for lower-extremity arterial occlusive disease in selected patients deemed to be at high risk for contrast angiography.
Jason Q Alexander; Seema M Leos; Steven G Katz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American surgeon     Volume:  68     ISSN:  0003-1348     ISO Abbreviation:  Am Surg     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2003-01-08     Completed Date:  2003-01-29     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370522     Medline TA:  Am Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1107-10     Citation Subset:  IM    
Huntington Memorial Hospital, Pasadena, California, USA.
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MeSH Terms
Aged, 80 and over
Angiography / methods
Blood Flow Velocity
Constriction, Pathologic / ultrasonography
Contrast Media
Middle Aged
Peripheral Vascular Diseases / physiopathology,  ultrasonography*
Predictive Value of Tests
Retrospective Studies
Sensitivity and Specificity
Ultrasonography, Doppler, Color*
Reg. No./Substance:
0/Contrast Media

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

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