Validation of a freely distributable software for the analysis of electrophysiological signals: Smart Tools for Evoked Potentials (STEP).
Kelly Cristina Lira de Andrade, Aline Tenório Lins Carnaúba, Carlos Henrique Alves Batista and 4 others
PMID 40767674WHAT IT FOUND
A new free software for analyzing auditory evoked potentials matched the accuracy of the clinical gold standard.
It calculated wave timings and sizes exactly as expected in tests and showed no significant differences from the standard system when analyzing 15 real patient exams.
Key findings
01The software matched the clinical gold standard system for analyzing real patient data, with no significant differences found in wave timings or sizes.
02Automatic calculations by the software were perfectly accurate when tested against mathematically generated waveforms.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study used a small sample of 15 real patient assessments for the clinical comparison. The validation was limited to BAEP and CAEP tests and did not cover all possible auditory or vestibular electrophysiological tests the software claims to support. The study was conducted in Brazil and the software is currently available for macOS and Windows, which may affect accessibility for some clinics.
Declared interests
The study was funded by FAPEAL. The software was developed by a public university in Brazil and is intended to be distributed free of charge.
The easy way to misread this
Do not assume this software is validated for every type of electrophysiological test it claims to support. The study only tested its accuracy for Brainstem and Cortical Auditory Evoked Potentials, so its performance on other tests like Frequency Following Response or Vestibular Evoked Myogenic Potentials remains unproven.