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Titolo:
Power Doppler imaging: Initial evaluation as a screening examination for carotid artery stenosis
Autore:
Bluth, EI; Sunshine, JH; Lyons, JB; Beam, CA; Troxclair, LA; Althans-Kopecky, L; Crewson, PE; Sullivan, MA; Smetherman, DH; Heidenreich, PA; Neiman, HL; Burkhardt, JH;
Indirizzi:
Ochsner Fdn Hosp, Dept Radiol, New Orleans, LA 70121 USA Ochsner Fdn HospNew Orleans LA USA 70121 diol, New Orleans, LA 70121 USA Amer Coll Radiol, Res Dept, Reston, VA USA Amer Coll Radiol Reston VA USA mer Coll Radiol, Res Dept, Reston, VA USA Western Penn Hosp, Dept Radiol, Pittsburgh, PA 15224 USA Western Penn Hosp Pittsburgh PA USA 15224 adiol, Pittsburgh, PA 15224 USA Med Coll Wisconsin, Dept Family & Community Med, Milwaukee, WI 53226 USA Med Coll Wisconsin Milwaukee WI USA 53226 ty Med, Milwaukee, WI 53226 USA Stanford Univ, Palo Alto VA Hlth Care Syst, Dept Med, Stanford, CA 94305 USA Stanford Univ Stanford CA USA 94305 yst, Dept Med, Stanford, CA 94305 USA
Titolo Testata:
RADIOLOGY
fascicolo: 3, volume: 215, anno: 2000,
pagine: 791 - 800
SICI:
0033-8419(200006)215:3<791:PDIIEA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
COST-EFFECTIVENESS; ACUTE PYELONEPHRITIS; US; ENDARTERECTOMY; VASCULATURE; GUIDELINES; ULTRASOUND; MORBIDITY; CHILDREN; STROKE;
Keywords:
carotid arteries, angiography; carotid arteries, stenosis or obstruction; carotid arteries, US; ultrasound (US), Doppler studies; ultrasound (US), power Doppler studies;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Bluth, EI Ochsner Fdn Hosp, Dept Radiol, 1514 Jefferson Highway, New Orleans, LA 70121 USA Ochsner Fdn Hosp 1514 Jefferson Highway New Orleans LA USA70121
Citazione:
E.I. Bluth et al., "Power Doppler imaging: Initial evaluation as a screening examination for carotid artery stenosis", RADIOLOGY, 215(3), 2000, pp. 791-800

Abstract

PURPOSE: To evaluate power Doppler imaging as a possible screening examination for carotid artery stenosis. MATERIALS AND METHODS: In the principal pilot study, a prospective, blinded comparison of power Doppler imaging with duplex Doppler imaging, the reference-standard method, was conducted in 100 consecutive patients routinely referred for carotid artery imaging at a large, private multispecialty clinic. In the validation pilot study, a prospective, blinded comparison of power Doppler imaging with digital subtraction angiography, the reference-standard method, was conducted in 20 consecutive patients routinely referred ata teaching hospital. Using conservative assumptions, the authors performedcost-effectiveness analysis. RESULTS: Power Doppler imaging produced diagnostic-quality images in 89% of patients. When the images of the patients with nondiagnostic examinationswere regarded as positive, power Doppler imaging had an area under the receiver operating characteristic curve, A, of 0.87, sensitivity of 70%, and specificity of 91 %. The validation study results were very similar. The cost-effectiveness of screening and, as indicated, duplex Doppler imaging as the definitive diagnostic examination and endarterectomy was $47,000 per quality-adjusted life-year. CONCLUSION: The A, value for power Doppler imaging compares well with thatfor mammography, a generally accepted screening examination, and with mostother imaging examinations. Power Doppler imaging is likely to be a reasonably accurate and cost-effective screening examination for carotid artery stenosis in asymptomatic populations.

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Documento generato il 04/12/20 alle ore 19:19:50