Document Detail

Evaluation of digital venous angiography for the diagnosis of renovascular hypertension.
MedLine Citation:
PMID:  7089265     Owner:  NLM     Status:  MEDLINE    
Thirty-two patients being evaluated for hypertension by angiography were also studied by digital video subtraction angiography (DVSA). Twenty-three of the 76 renal arteries were found by conventional angiography to have significant lesions. Two experienced angiographers evaluated the DVSA studies without knowledge of the angiographic results. The accuracy of DVSA for evaluation of renal arteries was 87% for Observer I and 80% for Observer II. Sensitivities were 87% and 83% and specificities 87% and 79% for the two observers. Of the 13 patients with significant lesions, Observer I identified at lest one lesion in all 13 while Observer II identified a lesion in 12 of the 13. The high false-positive rate (26% for Observer I and 37% for Observer II) was thought to be caused by subtraction artifacts, quantum noise, relatively low spatial resolution, and the Mach effect.
C W Smith; A C Winfield; R R Price; D R Harding; S W Tucker; W S Witt; J W Hollifield
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Radiology     Volume:  144     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1982 Jul 
Date Detail:
Created Date:  1982-08-07     Completed Date:  1982-08-07     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  51-4     Citation Subset:  AIM; IM    
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MeSH Terms
Angiography / methods*
Evaluation Studies as Topic
False Positive Reactions
Hypertension, Renal / radiography*
Hypertension, Renovascular / etiology,  radiography*
Renal Artery / radiography*
Renal Artery Obstruction / complications

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