TY - JOUR
T1 - Measuring the advantage of kalman-weighted averaging for auditory brainstem response hearing evaluation in infants
AU - Cone, Barbara
AU - Norrix, Linda W.
N1 - Publisher Copyright:
© 2015 American Speech-Language-Hearing Association.
PY - 2015
Y1 - 2015
N2 - Purpose: The purposes of this study were to (a) measure the effects of Kalman-weighted averaging methods on auditory brainstem response (ABR) threshold, latency, and amplitude; (b) translate lab findings to the clinical setting; and (c) estimate cost savings when ABRs can be obtained in nonsedated infants. Method: ABRs were recorded in 40 adults with normal hearing during induced motor noise conditions using the Kalman-weighted averaging method implemented on a commercial system, the Vivosonic Integrity (Vivosonic Inc., Toronto, Ontario, Canada). The device was then used to test 34 infants in awake and asleep states. The advantages of the Kalman-weighted averaging method were modeled in terms of time saved for conducting an ABR evaluation. Results: Kalman-weighted ABR threshold estimates were 6–7 dB lower than with conventional methods during induced motor noise. When used to obtain ABRs in infants who were awake, the number of sweeps required to obtain a result was significantly greater than that required for a sleeping infant but well within the range for clinical application. Conclusions: The use of Kalman-weighted averaging provides a measurable advantage over conventional methods and may reduce costs for the pediatric audiology practice.
AB - Purpose: The purposes of this study were to (a) measure the effects of Kalman-weighted averaging methods on auditory brainstem response (ABR) threshold, latency, and amplitude; (b) translate lab findings to the clinical setting; and (c) estimate cost savings when ABRs can be obtained in nonsedated infants. Method: ABRs were recorded in 40 adults with normal hearing during induced motor noise conditions using the Kalman-weighted averaging method implemented on a commercial system, the Vivosonic Integrity (Vivosonic Inc., Toronto, Ontario, Canada). The device was then used to test 34 infants in awake and asleep states. The advantages of the Kalman-weighted averaging method were modeled in terms of time saved for conducting an ABR evaluation. Results: Kalman-weighted ABR threshold estimates were 6–7 dB lower than with conventional methods during induced motor noise. When used to obtain ABRs in infants who were awake, the number of sweeps required to obtain a result was significantly greater than that required for a sleeping infant but well within the range for clinical application. Conclusions: The use of Kalman-weighted averaging provides a measurable advantage over conventional methods and may reduce costs for the pediatric audiology practice.
UR - http://www.scopus.com/inward/record.url?scp=84932145364&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84932145364&partnerID=8YFLogxK
U2 - 10.1044/2015_AJA-14-0021
DO - 10.1044/2015_AJA-14-0021
M3 - Article
C2 - 25654653
AN - SCOPUS:84932145364
SN - 1059-0889
VL - 24
SP - 153
EP - 168
JO - American journal of audiology
JF - American journal of audiology
IS - 2
ER -