Colour Doppler ultrasound: a new index improves the diagnosis of renal artery stenosis.
Ultrasound Med Biol
; 26(1): 41-7, 2000 Jan.
Article
em En
| MEDLINE
| ID: mdl-10687791
ABSTRACT
The description of a new index, the renal-segmental ratio (RSR), and the comparison of its performance with other conventional Doppler parameters for the detection of renal artery stenosis (RAS). A total of 96 renal units were studied with angiography and colour Doppler ultrasound (US) independently. The Doppler parameters applied were 1. renal artery peak systolic velocity (RE-PSV), 2. renal-aortic ratio (RAR), 3. early systolic acceleration (ESA), and 4. renal-segmental ratio (RSR). The angiographic study was used as the "gold standard" for the identification of > or = 50% RAS. The results indicate that RSR (sensitivity 93.33%, specificity 89.47%) and RE-PSV (sensitivity 83.33%, specificity 89.47%) were the best criteria for RAS diagnosis (p values <0.05). The results show that colour Doppler US is a reliable diagnostic modality for RAS diagnosis. The new index (RSR) improves the effectiveness of the method.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artéria Renal
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Obstrução da Artéria Renal
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Ultrassonografia Doppler em Cores
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article