Duplex scanning and effect of multisegmental arterial disease on its accuracy in lower limb arteries.
Eur J Vasc Endovasc Surg
; 16(4): 345-9, 1998 Oct.
Article
em En
| MEDLINE
| ID: mdl-9818013
ABSTRACT
AIM:
To assess the accuracy of duplex in assessment of peripheral arterial disease and determine the effect of multisegmental disease on the accuracy duplex as opposed to single lesion. PATIENTS ANDMETHODS:
One hundred and seventy-seven lower limbs were examined in 90 patients who presented with lower limb arterial disease, (59 male, 31 female, median age 68 years--81 with intermittent claudication, eight rest pain, one ulceration). Patients were examined with duplex US, and arteriography (IA DSA). Two radiologists and two technologists were involved in this double-blind study. Patients were classified into five groups; groups with single stenotic lesions, single occlusions, multiple stenotic lesions or occlusions, and multiple mixed disease. Duplex accuracy was determined in each group.RESULTS:
Duplex was able to differentiate between normal and disease arterial segment with a sensitivity of 92%, specificity 99%, PPV 91%, and NPV 100% and Kappa 0.87. Sixty-six limbs were found to have single lesions, and 68 multisegmental disease. Duplex showed accuracy with a sensitivity of 87%, and specificity of 99%, for single stenotic lesion and 95%, 96% respectively for multisegmental. For single occlusions duplex accuracy showed sensitivity 92% and specificity 100%, and for multisegmental occlusions, sensitivity 97%, and specificity 99%. For mixed multisegmental pathology (stenosis and occlusion), sensitivity 94% and specificity 97%.CONCLUSION:
Duplex is an accurate tool in diagnosis of lower limb arterial disease and multisegmental pathology does not adversely effect this accuracy.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Doenças Vasculares Periféricas
/
Ultrassonografia Doppler Dupla
/
Claudicação Intermitente
Tipo de estudo:
Clinical_trials
/
Diagnostic_studies
/
Evaluation_studies
/
Observational_studies
Limite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Eur J Vasc Endovasc Surg
Assunto da revista:
ANGIOLOGIA
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Reino Unido