Is Electrical Field Imaging a reliable tool to monitor intra-cochlear changes over time?

2005 ◽  
Vol 6 (S1) ◽  
pp. 42-44
Author(s):  
C Frohne-Büchner ◽  
P Popp ◽  
A Battmer ◽  
R-D Battmer ◽  
TH Lenarz
Keyword(s):  
Electrical Field ◽  
Reliable Tool ◽  
Electrical Field Imaging ◽  
Changes Over Time ◽  
Field Imaging ◽  
Over Time

Is Electrical Field Imaging a reliable tool to monitor intra-cochlear changes over time?

2005 ◽  
Vol 6 (sup1) ◽  
pp. 42-44
Author(s):  
C Frohne-Büchner ◽  
P Popp ◽  
A Battmer ◽  
R-D Battmer ◽  
TH Lenarz
Keyword(s):  
Electrical Field ◽  
Reliable Tool ◽  
Electrical Field Imaging ◽  
Changes Over Time ◽  
Field Imaging ◽  
Over Time

The Facial Nerve Canal: An Important Cochlear Conduction Path Revealed by Clarion Electrical Field Imaging

2004 ◽  
Vol 25 (3) ◽  
pp. 282-289 ◽  
Author(s):  
Filiep Vanpoucke ◽  
Andrzej Zarowski ◽  
Jan Casselman ◽  
Johan Frijns ◽  
Stefaan Peeters
Keyword(s):  
Facial Nerve ◽  
Conduction Path ◽  
Electrical Field ◽  
Facial Nerve Canal ◽  
Electrical Field Imaging ◽  
Field Imaging

scholarly journals Auditory Detection Thresholds and Cochlear Resistivity Differ Between Pediatric Cochlear Implant Listeners With Enlarged Vestibular Aqueduct and Those With Connexin-26 Mutations

2020 ◽  
Vol 29 (1) ◽  
pp. 23-34
Author(s):  
Kelly N. Jahn ◽  
Molly D. Bergan ◽  
Julie G. Arenberg
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Group Differences ◽  
Connexin 26 ◽  
Electrical Field ◽  
Detection Thresholds ◽  
Vestibular Aqueduct ◽  
Auditory Detection ◽  
Electrical Field Imaging ◽  
Field Imaging

Purpose The goal of this study was to evaluate differences in the electrode–neuron interface as a function of hearing loss etiology in pediatric cochlear implant (CI) listeners with enlarged vestibular aqueduct (EVA) syndrome and in those with autosomal recessive connexin-26 mutations (DFNB1). Method Fifteen implanted ears (9 participants, 5 ears with EVA, 10 ears with DFNB1) were assessed. Single-channel auditory detection thresholds were measured using broad and spatially focused electrode configurations (steered quadrupolar; focusing coefficients = 0 and 0.9). Cochlear resistivity estimates were obtained via electrode impedances and electrical field imaging. Between-group differences were evaluated using linear mixed-effects models. Results Children with EVA had significantly higher auditory detection thresholds than children with DFNB1, irrespective of electrode configuration. Between-group differences in thresholds were more pronounced on apical electrodes than on basal electrodes. In the apex, electrode impedances and electrical field imaging values were higher for children with EVA than for those with DFNB1. Conclusions The electrode–neuron interface differs between pediatric CI listeners with DFNB1 and those with EVA. It is possible that optimal clinical interventions may depend, in part, on hearing loss etiology. Future investigations with large samples should investigate individualized CI programming strategies for listeners with EVA and DFNB1.

Electrical field imaging as a means to predict the loudness of monopolar and tripolar stimuli in cochlear implant patients

2010 ◽  
Vol 270 (1-2) ◽  
pp. 28-38 ◽  
Author(s):  
Carlo K. Berenstein ◽  
Filiep J. Vanpoucke ◽  
Jef J.S. Mulder ◽  
Lucas H.M. Mens
Keyword(s):  
Cochlear Implant ◽  
Electrical Field ◽  
Electrical Field Imaging ◽  
Field Imaging

Comparison of two devices for measuring exercise transcutaneous oxygen pressures in patients with claudication

VASA ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 355-362 ◽  
Author(s):  
Marie Urban ◽  
Alban Fouasson-Chailloux ◽  
Isabelle Signolet ◽  
Christophe Colas Ribas ◽  
Mathieu Feuilloy ◽  
...  
Keyword(s):  
Oxygen Pressure ◽  
Optical Sensors ◽  
Chemical Sensors ◽  
Transcutaneous Oxygen ◽  
Starting Values ◽  
Two Systems ◽  
Transcutaneous Oxygen Pressure ◽  
New Sensors ◽  
Changes Over Time ◽  
Over Time

Abstract. Summary: Background: We aimed at estimating the agreement between the Medicap® (photo-optical) and Radiometer® (electro-chemical) sensors during exercise transcutaneous oxygen pressure (tcpO2) tests. Our hypothesis was that although absolute starting values (tcpO2rest: mean over 2 minutes) might be different, tcpO2-changes over time and the minimal value of the decrease from rest of oxygen pressure (DROPmin) results at exercise shall be concordant between the two systems. Patients and methods: Forty seven patients with arterial claudication (65 + / - 7 years) performed a treadmill test with 5 probes each of the electro-chemical and photo-optical devices simultaneously, one of each system on the chest, on each buttock and on each calf. Results: Seventeen Medicap® probes disconnected during the tests. tcpO2rest and DROPmin values were higher with Medicap® than with Radiometer®, by 13.7 + / - 17.1 mm Hg and 3.4 + / - 11.7 mm Hg, respectively. Despite the differences in absolute starting values, changes over time were similar between the two systems. The concordance between the two systems was approximately 70 % for classification of test results from DROPmin. Conclusions: Photo-optical sensors are promising alternatives to electro-chemical sensors for exercise oximetry, provided that miniaturisation and weight reduction of the new sensors are possible.

Neuropsychological Symptoms in Posttraumatic Stress Disorder and Changes Over Time

2007 ◽  
Author(s):  
Miranda Olff ◽  
Mirjam Nijdam ◽  
Kristin Samuelson ◽  
Julia Golier ◽  
Mariel Meewisse ◽  
...  
Keyword(s):  
Posttraumatic Stress Disorder ◽  
Posttraumatic Stress ◽  
Stress Disorder ◽  
Neuropsychological Symptoms ◽  
Changes Over Time ◽  
Over Time

Changes Over Time in Adaptive Behavior Functioning of Twice-Exceptional Children

2010 ◽  
Author(s):  
Rebecca D. Stinson ◽  
Zachary Sussman ◽  
Megan Foley Nicpon ◽  
Allison L. Allmon ◽  
Courtney Cornick ◽  
...  
Keyword(s):  
Adaptive Behavior ◽  
Exceptional Children ◽  
Twice Exceptional ◽  
Changes Over Time ◽  
Over Time
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