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Titolo:
Volume flow measurement using Doppler and grey-scale decorrelation
Autore:
Rubin, JM; Tuthill, TA; Fowlkes, JB;
Indirizzi:
Univ Michigan, Med Ctr, Dept Radiol, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 Dept Radiol, Ann Arbor, MI 48109 USA
Titolo Testata:
ULTRASOUND IN MEDICINE AND BIOLOGY
fascicolo: 1, volume: 27, anno: 2001,
pagine: 101 - 109
SICI:
0301-5629(200101)27:1<101:VFMUDA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD VELOCITY ESTIMATION; SPECKLE DECORRELATION; CONTRAST AGENT; ULTRASOUND; TRANSVERSE; SIGNALS; ANGLE; US;
Keywords:
volumetric blood flow; medical ultrasound; Doppler; grey-scale decorrelation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Tuthill, TA Univ Michigan, Med Ctr, Dept Radiol, 200 Zina Pitcher Pl, Ann Arbor, MI 48109 USA Univ Michigan 200 Zina Pitcher Pl Ann Arbor MI USA 48109 9 USA
Citazione:
J.M. Rubin et al., "Volume flow measurement using Doppler and grey-scale decorrelation", ULTRASOUN M, 27(1), 2001, pp. 101-109

Abstract

A technique for volumetric blood flow measurement was developed by combining standard Doppler measurements with grey-scale decorrelation. Steered Doppler is used to determine the in-plane velocities, which are then used to extract the out-of-plane velocities from the temporal A-line decorrelation. As a result, a three-dimensional (3-D) vector flow field can be computed over the imaging plane using a single clinical transducer without knowledge of the vessel orientation. Volume flow is computed by integrating the out-of-plane flow over the vessel cross-section. The algorithm was tested using ascattering-enhanced fluid in a 6.4-mm diameter dialysis tubing. For a widerange of transducer angles, the volume flow was accurately measured to within 28% in these preliminary tests. (E-mail: tuthill@umich.edu) (C) 2001 World Federation for Ultrasound in Medicine & Biology.

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Documento generato il 07/04/20 alle ore 21:48:31