• Corti OAE Screener from Grason-Stadler

    Corti
  • Audera Pro Clinical Evoked Potentials and OAE system from Grason-Stadler

    Audera Pro
  • Novus AABR newborn hearing screener from Grason-Stadler

    Novus

OAE

An otoacoustic emissions (OAE) device is a vital tool for ENTs, audiologists and other hearing health professionals. These instruments range from fully clinical and diagnostic to screening and handheld or portable options. There are also combination devices that have more than one modality. A clinical OAE device will be the most versatile device and include with a number of test types such as DPOAE, TEOAE, Spontaneous OAE, I/O function, and microfine points per octave to assist with diagnosis and verification of outer hair cell function. Screening OAEs include predefined protocols that provide a pass or refer result with either DPOAE, TEOAE, or both.

CURRENT GSI OAE DEVICES

An oae test being performed on an infant

CORTI | DPOAE/TEOAE DEVICE

The GSI Corti™ is a portable, battery-operated diagnostic and screening device that measures OAEs for infants, children, and adults. The Corti offers maximum speed and flexibility with pre-defined and user-defined protocols for Distortion Product Otoacoustic Emissions (DPOAE) and Transient Evoked Otoacoustic Emissions (TEOAE) measurements. Screening can be completed in seconds - saving valuable time, increasing accuracy, and reducing the risk of a newborn waking during screening. The Corti provides six different configuration options that meet the needs for virtually all clinic environments: three options for screening and three options for diagnostic testing. Screening options include DP, TE, or DP plus TE screening. Diagnostic configurations include DP, TE, or DP plus TE diagnostics.

 

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A clinician testing a patient with the Audera Pro

AUDERA PRO | CLINICAL EP/OAE

evoked potentials (EP) and OAE tests. The Audera Pro comes with all of the great features of its predecessor but now offers a number of significant updates to support the needs of the modern audiology practice. The Audera Pro generates quick and efficient quality data, providing simple system operation, and utilizes convenient database management. Reporting is clear and concise, allowing test results to be easily organized, combined, and interpreted. The system includes a comprehensive battery of evoked potentials test types including ECochG, ABR, MLR, LLR, SN10, P300/MMN, ASSR, and eABR. Optional modality licenses may be purchased, allowing you to perform a combination of different tests: AEP, ASSR, DPOAE, and TEOAE.

 

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An infant being tested with the GSI Novus AABR screener

NOVUS | NEWBORN AABR SCREENER

The GSI Novus™ is a sleek, handheld, comprehensive newborn hearing screening instrument. The Novus features a touch screen display and intuitive software in a compact hardware design. The Novus may be configured with any combination of AABR, TEOAE, and DPOAE, which allows for seamless two stage infant screening. The Novus offers two methods for simultaneous testing of AABR by using IP30 insert phones with ear tips or ear cups. Testing both ears at the same time offers significant time saving benefits. A wireless charging dock is included with the Novus. Screening tests can be completed any time the battery is low, as long as the device is placed on the dock. A fully charged Novus can perform approximately 50 ABR or 150 OAE screening evaluations.

 

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OAE BASICS

Find more educational materials about OAEs by visiting GSI ADVANCE.

WHAT IS AN OTOACOUSTIC EMISSIONS TEST?
An OAE test assesses the function of outer hair cells in the cochlea. It requires no active participation from the patient. An OAE machine analyzes the outer hair cell function by sending a sound into the ear. When a sound is sent into a normal functioning ear system, the outer hair cells will generate sounds (otoacoustic emissions) that can be measured by a sensitive microphone placed in the ear canal. If returning sounds are not detected by the device, the patient needs to have additional hearing testing to verify hearing status.

HOW ARE OAE TESTS PERFORMED?
An OAE hearing test machine is used to measure outer hair cell function. To conduct an OAE hearing test, a small probe that generates a calibrated stimulus is placed into the ear canal. The stimulus is sent into the ear canal and the OAE response is measured through a very sensitive microphone in the same probe. The device screen displays the result as either “pass” or “refer.” Refer indicates that additional testing is needed to verify hearing status.

WHAT IS THE DIFFERENCE BETWEEN SCREENING AND DIAGNOSTIC OAE TESTING?
Screening OAE testing is a basic evaluation that provides an automated result and is typically performed by technicians or medical assistants. No interpretation is required as the equipment uses sophisticated algorithms to assign a pass or refer result. Screening OAE testing is used in universal newborn hearing screening programs and for pre-school and school hearing screenings. Diagnostic OAE testing is a more comprehensive evaluation of outer hair cells that is used in conjunction with other tests designed to diagnose hearing loss, like audiometry and tympanometry. Diagnostic OAE tests are performed by licensed hearing healthcare professionals such as audiologists and require knowledge of the auditory system to interpret the test results.