Document Detail


Diagnostic performance of segmental plethysmography and Doppler ultrasound in obliterating vascular diseases in the lower limbs.
MedLine Citation:
PMID:  7377634     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The diagnostic value of three noninvasive techniques was evaluated in a group of 100 "normal" and 100 "abnormal" limbs. The choice of segmental plethysmography, systolic pressure determination, and Doppler velocity curve was based on the fact that these methods are noninvasive, inexpensive, and atraumatic; they can easily be performed by paramedical personnel. There was a statistically significant difference between the ankle-to-arm systolic blood pressure ratio of normals and abnormals as measured by Doppler ultrasound with 0.96 as the dividing line, no false positives and only 11% false negatives were found. However, there was a large overlap for many parameters calculated from the velocity curve. The general morphological aspect of the velocity curve shows a better diagnostic performance than the calculated parameters of this curve: a monophasis curve had an 85% chance of being normal. The ankle segmental plethysmogram yielded only 5% false negatives, but 20% false positives; moreover, a biphasic curve has a 90% chance of being normal. Thus large-scale screening in clinical practice or in epidemiologic studies can best be done by Doppler pressure measurements; the velocity curve performs less satisfactorily. Segmental plethysmography is more sensitive, but it yields more false positive results.
Authors:
D L Clement; R Claeys
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Angiology     Volume:  31     ISSN:  0003-3197     ISO Abbreviation:  Angiology     Publication Date:  1980 Apr 
Date Detail:
Created Date:  1980-07-28     Completed Date:  1980-07-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0203706     Medline TA:  Angiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  272-82     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Blood Pressure
Doppler Effect*
Hemodynamics
Humans
Leg
Physical Phenomena
Physics*
Plethysmography*
Thrombosis / diagnosis,  pathology
Vascular Diseases / diagnosis*,  pathology

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


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