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Titolo:
The role of radiographic phase-contrast imaging in the development of intracochlear electrode arrays
Autore:
Xu, J; Stevenson, AW; Gao, DC; Tykocinski, M; Lawrence, D; Wilkins, SW; Clark, GM; Saunders, E; Cowan, RS;
Indirizzi:
Univ Melbourne, Dept Otolaryngol, Cooperat Res Ctr Cochlear Implant & Hearing Aid I, Melbourne, Vic 3002, Australia Univ Melbourne Melbourne Vic Australia 3002 elbourne, Vic 3002, Australia Bion Ear Inst, Clayton, Vic, Australia Bion Ear Inst Clayton Vic Australia on Ear Inst, Clayton, Vic, Australia CSIRO, Clayton, Vic 3168, Australia CSIRO Clayton Vic Australia 3168CSIRO, Clayton, Vic 3168, Australia
Titolo Testata:
OTOLOGY & NEUROTOLOGY
fascicolo: 6, volume: 22, anno: 2001,
pagine: 862 - 868
SICI:
1531-7129(200111)22:6<862:TRORPI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITION;
Keywords:
cochlear implant; electrode position; imaging; imaging plate; microfocus; perimodiolar electrode; phase-contrast radiography; temporal bone;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Xu, J Univ Melbourne, Dept Otolaryngol, Cooperat Res Ctr Cochlear Implant & Hearing Aid I, 32 Gisborne St, Melbourne, Vic 3002, Australia Univ Melbourne 32 Gisborne St Melbourne Vic Australia 3002 Australia
Citazione:
J. Xu et al., "The role of radiographic phase-contrast imaging in the development of intracochlear electrode arrays", OTOL NEURO, 22(6), 2001, pp. 862-868

Abstract

Objective: This study describes the application of a new radiographic imaging modality, phase-contrast radiography, to in vitro human temporal bone imaging and investigates its use in the development of new electrode arrays for cochlear implants. Background: The development of perimodiolar electrode arrays for cochlear implants requires detailed information from postoperative radiologic assessment on the position of the array in relation to the cochlear structures. Current standard radiographic techniques provide only limited details. Materials and Methods: Nucleus standard electrode arrays and perimodiolar Contour electrode arrays were implanted into the scala tympani of 11 human temporal bones. Both conventional and phase-contrast radiographs were takenof each temporal bone for comparative purposes. Results: Phase-contrast imaging provides better visualization of anatomic details of the inner car and of the structure of the intracochlear electrode array, and better definition of electrode location in relation to cochlear walls. Conclusion: Phase-contrast radiography offers significant improvement overconventional radiography in images of in vitro human temporal bones. It seems to be a valuable tool in the development of intracochlear electrode arrays and cochlear implant research, However, this new radiographic techniquestill requires certain computational and physics challenges to be addressed before its clinical use can be established.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 15:43:04