Document Detail

Clinical protocols for hearing instrument fitting in the Desired Sensation Level method.
MedLine Citation:
PMID:  16424946     Owner:  NLM     Status:  MEDLINE    
A discussion of the protocols used particularly in the clinical application of the Desired Sensation Level (DSL) Method is presented in this chapter. In the first section, the measurement and application of acoustic transforms is described in terms of their importance in the assessment phase of the amplification fitting process. Specifically, the implications of individual ear canal acoustics and their impact on accurately defining hearing thresholds are discussed. Detailed information about the statistical strength of the real-ear-to-coupler difference (RECD) measurement and how to obtain the measure in young infants is also provided. In addition, the findings of a study that examined the relationship between behavioral and electrophysiologic thresholds in real-ear SPL is described. The second section presents information related to the electroacoustic verification of hearing instruments. The RECD is discussed in relation to its application in simulated measurements of real-ear hearing instrument performance. In particular, the effects of the transducer and coupling method during the RECD measurement are described in terms of their impact on verification measures. The topics of insertion gain, test signals, and venting are also considered. The third section presents three summary tables that outline the hearing instrument fitting process for infants, children, and adults. Overall, this chapter provides both clinical and scientific information about procedures used in the assessment and verification stages of the DSL Method.
Marlene Bagatto; Sheila Moodie; Susan Scollie; Richard Seewald; Shane Moodie; John Pumford; K P Rachel Liu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Trends in amplification     Volume:  9     ISSN:  1084-7138     ISO Abbreviation:  Trends Amplif     Publication Date:  2005  
Date Detail:
Created Date:  2006-01-20     Completed Date:  2006-04-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9709254     Medline TA:  Trends Amplif     Country:  United States    
Other Details:
Languages:  eng     Pagination:  199-226     Citation Subset:  IM    
National Centre for Audiology, Faculty of Health Sciences, University of Western Ontario, London, Ontario, Canada NG6 1H1.
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MeSH Terms
Acoustic Impedance Tests
Audiometry, Pure-Tone
Auditory Threshold*
Child, Preschool
Clinical Protocols*
Ear Canal / physiology*
Equipment Design
Evoked Potentials, Auditory, Brain Stem
Hearing Aids*
Hearing Loss / rehabilitation*
Predictive Value of Tests
Prosthesis Fitting / methods
Regression Analysis
Rehabilitation of Hearing Impaired

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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