نتایج جستجو برای: electrode localization

تعداد نتایج: 202377  

Journal: :Investigative ophthalmology & visual science 2011
Robert Wilke Veit-Peter Gabel Helmut Sachs Karl-Ulrich Bartz Schmidt Florian Gekeler Dorothea Besch Peter Szurman Alfred Stett Barbara Wilhelm Tobias Peters Alex Harscher Udo Greppmaier Steffen Kibbel Heval Benav Anna Bruckmann Katarina Stingl Akos Kusnyerik Eberhart Zrenner

PURPOSE The perception of 11 persons blinded by hereditary retinal degeneration elicited by a subretinally implanted 16-electrode array used for light-independent direct stimulation of the retina is described. This device is part of the Tübingen retina implant, which also employs a light-sensitive, multiphotodiode array (MPDA). The ability to reliably recognize complex spatial percepts was inve...

Journal: :Neurosurgery 2011
Peter S LaViolette Scott D Rand Manoj Raghavan Benjamin M Ellingson Kathleen M Schmainda Wade Mueller

BACKGROUND Accurate localization and visualization of subdural electrodes implanted for intracranial electroencephalography in cases of medically refractory epilepsy remains a challenging clinical problem. OBJECTIVE We introduce a technique for creating accurate 3-dimensional (3D) brain models with electrode overlays, ideal for resective surgical planning. METHODS Our procedure uses postimp...

2014
Camille S. Stephen Edward V. LaBelle Susan L. Brantley Daniel R. Bond

When Geobacter sulfurreducens utilizes an electrode as its electron acceptor, cells embed themselves in a conductive biofilm tens of microns thick. While environmental conditions such as pH or redox potential have been shown to change close to the electrode, less is known about the response of G. sulfurreducens to growth in this biofilm environment. To investigate whether respiratory protein ab...

Journal: :AJNR. American journal of neuroradiology 2008
B M Verbist R M S Joemai W M Teeuwisse W J H Veldkamp J Geleijns J H M Frijns

BACKGROUND AND PURPOSE Postoperative imaging of cochlear implants (CIs) needs to provide detailed information on localization of the electrode array. We evaluated visualization of a HiFocus1J array and accuracy of measurements of electrode positions for acquisitions with 64-section CT scanners of 4 major CT systems (Toshiba Aquilion-64, Philips Brilliance-64, GE LightSpeed-64, and Siemens Sensa...

Journal: :journal of computer and robotics 0
fereydoon abdi faculty of computer and information technology engineering qazvin branch islamic azad university qazvin, iran abolfazl toroghi haghighat faculty of computer and information technology engineering qazvin branch islamic azad university qazvin, iran

wireless sensor networks attracting a great deal of research interest. accurate localization of sensor nodes is a strong requirement in a wide area of applications. in recent years, several techniques have been proposed for localization in wireless sensor networks. in this paper we present a localization scheme with using only one mobile anchor station and received signal strength indicator tec...

Journal: :iranian journal of radiology 0
ali alamdaran mashhad university of medical sciences,mashhad,iran; ramin sadegi mashhad university of medical sciences,mashhad,iran aida sharifi mashhad university of medical sciences,mashhad,iran elaheh moododi mashhad university of medical sciences,mashhad,iran naser forghani mashhad university of medical sciences,mashhad,iran

conclusions radio-guided localization of non-palpable breast lesions is an acceptable method because of technical facilitation, accurate localization and complete excision with limited complications. so it can be recommended as an alternative method for wire-guided localization. results pathologic results were benign in 90.5% and malignant in 9.5% of patients. post-operative margin of lesion wa...

2013
STEFAN KERBER BERNHARD U. SEEBER

Users of bilateral cochlear implants (CIs) experience difficulties localizing sounds in reverberant rooms, even in rooms where normal-hearing listeners would hardly notice the reverberation. We measured the localization ability of seven bilateral CI users listening with their own devices in anechoic space and in a simulated reverberant room. To determine factors affecting performance in reverbe...

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