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Titolo:
An adaptive template-matching method and its application to the boundary detection of brachial artery ultrasound scans
Autore:
Fan, LX; Santago, P; Riley, W; Herrington, DM;
Indirizzi:
Wake Forest Univ, Bowman Gray Sch Med, Med Engn Dept, Winston Salem, NC 27157 USA Wake Forest Univ Winston Salem NC USA 27157 , Winston Salem, NC 27157 USA Siemens Med Syst, Ultrasound Grp, Issaquah, WA USA Siemens Med Syst Issaquah WA USA Syst, Ultrasound Grp, Issaquah, WA USA Wake Forest Univ, Bowman Gray Sch Med, Dept Neurol, Winston Salem, NC 27157 USA Wake Forest Univ Winston Salem NC USA 27157 , Winston Salem, NC 27157 USA Wake Forest Univ, Bowman Gray Sch Med, Cardiol Sect, Winston Salem, NC 27157 USA Wake Forest Univ Winston Salem NC USA 27157 , Winston Salem, NC 27157 USA
Titolo Testata:
ULTRASOUND IN MEDICINE AND BIOLOGY
fascicolo: 3, volume: 27, anno: 2001,
pagine: 399 - 408
SICI:
0301-5629(200103)27:3<399:AATMAI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENDOTHELIAL FUNCTION; MIXTURE DENSITY; VASODILATION; ALGORITHM; PATTERN; IMAGES; EDGES;
Keywords:
adaptive template matching; vascular wall; flow-mediated vasodilation; ultrasound;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Santago, P Wake Forest Univ, Bowman Gray Sch Med, Med Engn Dept, Med Ctr Blvd, Winston Salem, NC 27157 USA Wake Forest Univ Med Ctr Blvd Winston Salem NC USA 27157 57 USA
Citazione:
L.X. Fan et al., "An adaptive template-matching method and its application to the boundary detection of brachial artery ultrasound scans", ULTRASOUN M, 27(3), 2001, pp. 399-408

Abstract

We developed an adaptive template-matching method for vessel wall boundarydetection in brachial artery ultrasound (US) scans. The computer-aided identification of lumen-intima and media-adventitia boundaries of the brachialartery US scan is a critical step for Bow-mediated vasodilator response measurement, which has become an increasingly important tool in both clinicaland research applications. The adaptive template we propose in this paper is a combination of two parameterized Gaussian envelopes that approximates the US pulse envelope. The algorithm for template matching is cast as a constrained nonlinear least squares problem. A best match between the templateand the observed US scan line signal results in a set of optimum parameters of the adaptive template, and the location of the boundaries is directly computed from these parameters. We present the results of applying our method to synthetic and clinical data, showing that the adaptive template-matching method provides superior accuracy in detecting the media-adventitia boundaries of both the near wall and the far wall of the vessel to that of conventional edge-detection methods. (C) 2001 World Federation for Ultrasound in Medicine & Biology.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 09:17:14