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Titolo:
Utility of intrarenal Doppler ultrasound in the diagnosis of renal artery stenosis
Autore:
Ripolles, T; Aliaga, R; Morote, V; Lonjedo, E; Delgado, F; Martinez, MJ; Vilar, J;
Indirizzi:
Dr Peset Hosp, Dept Radiol, Valencia 46017, Spain Dr Peset Hosp ValenciaSpain 46017 p, Dept Radiol, Valencia 46017, Spain
Titolo Testata:
EUROPEAN JOURNAL OF RADIOLOGY
fascicolo: 1, volume: 40, anno: 2001,
pagine: 54 - 63
SICI:
0720-048X(200110)40:1<54:UOIDUI>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
RENOVASCULAR DISEASE; WAVE-FORM; SONOGRAPHY; US; PARAMETERS; TARDUS; INTEROBSERVER; PATTERN;
Keywords:
renal artery stenosis; renal Doppler sonography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Ripolles, T Dr Peset Hosp, Dept Radiol, 21 Gaspar Aguilar Ave, Valencia 46017, Spain Dr Peset Hosp 21 Gaspar Aguilar Ave Valencia Spain 46017 pain
Citazione:
T. Ripolles et al., "Utility of intrarenal Doppler ultrasound in the diagnosis of renal artery stenosis", EUR J RAD, 40(1), 2001, pp. 54-63

Abstract

Purpose: To determine the utility of intrarenal Doppler parameters and waveform analysis in a hypertensive population screened for renal artery stenosis (RAS). Materials and methods: Sixty five patients were studied (122 kidneys) with intrarenal. Doppler sonography. Doppler waveforms of three different areas from each kidney were obtained (superior, middle and inferior level). Waveform morphology, acceleration time (AT), acceleration (Ac) and resistive index (RI) were evaluated in each kidney, comparing retrospectivelythe Doppler findings with the angiographic results. Results: Arteriographydemonstrated 33 (27.2%) renal arteries with stenosis (18 with RAS > 75%). Statistically significant differences for AT and Ac were found among the patients with RAS > 75% and the other groups (P < 0.01). An AT > 80 ms and anAc less than or equal to 1 m/s(2) showed a sensitivity of 89% and a specificity of 99%, for the diagnosis of RAS > 75%. Better results were obtained in patients less than 50 years old (100% of sensitivity and specificity). The morphologic analysis of the Doppler waveform had poor results but the detection of a waveform grade 0 had a high specificity (98%). An additional comparison of both kidneys didn't improve the results. Conclusion: Intrarenal Doppler waveform analysis using quantitative measurements (AT and Ac) is an adequate technique for the diagnosis of severe RAS in previously selected patients, especially in younger patients ( < 50 years). (C) 2001 ElsevierScience Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 18:02:03