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Titolo:
NOVEL INSTRUMENT FOR HIGH-RESOLUTION ULTRASOUND FLOW IMAGING
Autore:
TORTOLI P; GUIDI F; GUIDI G; BERTI P; ATZENI C;
Indirizzi:
UNIV FLORENCE,DEPT ELECT ENGN,VIA S MARTA 3 I-50139 FLORENCE ITALY
Titolo Testata:
International journal of imaging systems and technology
fascicolo: 5, volume: 8, anno: 1997,
pagine: 438 - 443
SICI:
0899-9457(1997)8:5<438:NIFHUF>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPPLER FREQUENCY; SIGNALS; RANGE; BIAS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
P. Tortoli et al., "NOVEL INSTRUMENT FOR HIGH-RESOLUTION ULTRASOUND FLOW IMAGING", International journal of imaging systems and technology, 8(5), 1997, pp. 438-443

Abstract

In multigate systems employed in Doppler flow-imaging equipment, the velocities of targets located at different ranges along the ultrasoundbeam axis are simultaneously detected. Typically, to reduce the computation efforts, this processing is aimed at extracting a single parameter (e.g., the mean velocity) from each signal. In this article, a novel ultrasound multigate instrument is presented capable of providing adetailed analysis of Doppler signals originated from 64 different range cells. By means of a dedicated high-speed fast-fourier transform processor, these signals are transformed into the frequency domain without loss of information. The implementation of the new multigate systemis described here, and the pieces of information which it can provideare discussed. Significant results obtained in vitro and in vivo demonstrate that the new instrument is capable of accurately reproducing the actual velocity profiles of the interrogated flow. (C) 1997 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 05:55:20