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Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
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Hearing Screening through Frequency Analysis of Auditory Brainstem Response Using PhysioNet Data.

Catherine Manuela Lee-Ramos1, Al Francis L Bontogon2, Angelica S Collanto2

  • 1Manufacturing Engineering and Management, De La Salle University, Manila, Philippines.

Acta Medica Philippina
|November 1, 2024
PubMed
Summary
This summary is machine-generated.

This study enhances early detection of hearing impairment by analyzing auditory brainstem response (ABR) signals. Time-frequency analysis of ABR data improves diagnostic accuracy for hearing loss in neonates.

Keywords:
auditorybrain stemdelayed diagnosisevoked potentialshearing loss humans

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Area of Science:

  • Biomedical Engineering
  • Signal Processing
  • Neuroscience

Background:

  • Delayed diagnosis of hearing impairment in neonates leads to developmental delays.
  • Early intervention is crucial for optimal outcomes in affected infants.
  • Auditory Brainstem Response (ABR) signals offer a potential diagnostic tool.

Purpose of the Study:

  • To identify key time-frequency domain features of ABR signals for diagnosing hearing impairment.
  • To develop and test a protocol for analyzing ABR signals to detect hearing loss.
  • To improve early detection and intervention for hearing impairment in neonates.

Main Methods:

  • Acquired normal (N) and hearing-impaired (HI) ABR adult human signals from PhysioNet.
  • Applied pre-processing, time-frequency analysis, and filtering techniques.
  • Extracted dominant frequency and bigram features as data classifiers.

Main Results:

  • Initial tests with N classifiers and a 60 Hz cutoff showed low to moderate sensitivity.
  • Incorporating HI classifiers and a 300 Hz cutoff significantly improved sensitivity.
  • Analyzing data divided by stimulus intensity level, particularly middle ranges, enhanced diagnostic distinction.

Conclusions:

  • Combined N and HI classifiers yield higher sensitivity than N classifiers alone.
  • A 300 Hz cutoff frequency provides better sensitivity than a 60 Hz cutoff.
  • Segmenting data by stimulus intensity improves sensitivity and distinguishes between normal and hearing-impaired patients.