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Titolo:
Development of three-dimensional power Doppler ultrasound imaging of fetoplacental vasculature
Autore:
Welsh, AW; Humphries, K; Cosgrove, DO; Taylor, MJO; Fisk, NM;
Indirizzi:
Queen Charlottes & Chelsea Hosp, Inst Reprod & Dev Biol, Dept Maternal & Fetal Med, London W12 0NN, England Queen Charlottes & Chelsea Hosp London England W12 0NN W12 0NN, England Univ London Imperial Coll Sci Technol & Med, Sch Med, Hammersmith Hosp, Radiol Sci Unit, London, England Univ London Imperial Coll Sci Technol & MedLondon England don, England Univ London Imperial Coll Sci Technol & Med, Sch Med, Hammersmith Hosp, Dept Imaging, London, England Univ London Imperial Coll Sci Technol & Med London England don, England
Titolo Testata:
ULTRASOUND IN MEDICINE AND BIOLOGY
fascicolo: 9, volume: 27, anno: 2001,
pagine: 1161 - 1170
SICI:
0301-5629(200109)27:9<1161:DOTPDU>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
3-DIMENSIONAL ULTRASOUND; NUCHAL TRANSLUCENCY; ULTRASONOGRAPHY; DIAGNOSIS; PREGNANCY; ACCURACY; PLACENTA; US;
Keywords:
three-dimensional ultrasound; image segmentation; power Doppler; ultrasound phantom; freehand; placental; vascular;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Welsh, AW Queen Charlottes & Chelsea Hosp, Inst Reprod & Dev Biol, Dept Maternal & Fetal Med, Du Cane Rd, London W12 0NN, England Queen Charlottes & Chelsea Hosp Du Cane Rd London England W12 0NN
Citazione:
A.W. Welsh et al., "Development of three-dimensional power Doppler ultrasound imaging of fetoplacental vasculature", ULTRASOUN M, 27(9), 2001, pp. 1161-1170

Abstract

To develop an off-line system for three-dimensional (3-D) ultrasound (US) reconstruction of fetoplacental vasculature using colour segmentation and reconstruction software and to determine sources of error in fully freehand ultrasound image acquisition. US images were acquired freehand with the Acuson Sequoia(TM) (5C 2-MHz transducer) using power Doppler. After digital transfer to a personal computer, CQ Analysis software (Kinetic Imaging Ltd, Liverpool, UK) was used to segment the colour information from these images,and the resulting 8-bit grey-scale images were used for 3-D rendering using commercial software (VoxBlast(TM), Vaytek Inc., Fairfield, IA, USA). 2-D scanning, software and freehand acquisition accuracy were assessed using a linear test rig and distance and volume phantoms (Dansk Phantom Service Ltd); 2-D scanning accuracy was within 1.3%, and software reconstruction accuracy within 1% for x and y planes and up to 3% for the z plane. Fully freehand acquisition was associated with a 12% to 18% mean percentage error in distance measurement in the plane of acquisition. Volumetric reconstruction inaccuracy was between 1.5% and 19.7% for precisely separated images and between 16.2% and 39.2% for fully freehand image acquisition. Rendered 3-D US vascular images clearly delineated vascular anatomy within the placenta andcord. Fully freehand 3-D US does have a role in off-line reconstruction ofvascular anatomy, although variability in the z plane precludes its use for volumetric measurement.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/10/20 alle ore 09:48:20