|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
We are looking for distributors |
|
Neuro-Audio General Properties
- Auditory brainstem response (ABR)/Brainstem evoked response audiometry (BERA) (air and bone conduction)
- Auditory steady-state response (ASSR)* with possibility of simultaneous stimulation at 4 frequencies for both ears (multi-ASSR)
- Transient evoked otoacoustic emission (TEOAE)
- Distortion product otoacoustic emission (DPOAE)
- Spontaneous otoacoustic emission (SOAE)
- Middle- and long-latency auditory evoked potentials (AEP: MLR, LLR)
- Vestibular evoked myogenic potentials (VEMP)
- Pure tone audiometry (PTA)* (air and bone conduction)
- Electrocochleography (ECochG)*
- Cognitive evoked potentials (MMN, P300)*
- Impedance indication on front device panel
Applications
-
Newborn hearing screening
-
Hearing monitoring of children at risk for hearing loss
-
Hearing monitoring of children suffering from otitis or middle ear inflammation
-
Detailed hearing study of individuals of any age
What's New?
Impedance Indication on Front Panel
The impedance indicators are displayed on the front panel of the device. They allow controlling the quality of electrode placement staying near a patient.
Convenient Interface
In the new Neuro-Audio software more convenient interface for audiologists is used which provides separate windows for right and left ears where the curves are marked by standard colors (red one is for right ear and blue one is for left ear).
The software specifies ipsi- and contra-lateral curves in multi-channel recording.
New Techniques
- Spontaneous otoacoustic emission (SOAE)
- Pure tone audiometry (PTA) (air and bone conduction)
- Bone conduction ABR testing
- Multiple-frequency auditory steady-state response (multi-ASSR)
- Sound field testing
Software Additional Features
- Automatic detection of objective auditory threshold in ABR test
- Random deviation of stimulus period (to help eliminate electrical interference in ABR)
- Weighted averaging algorithm (for ABR)
- Automatic arrangement of markers
- Automatic test for PTA (Hughson-Westlake)
- New stimulus waveform: chirp
- Calculation of additional parameters: Fsp, SNR, RNL
- Presentation of stimulus intensity in different scales: dB SPL, dB nHL and dB HL
- Possibility of stimulus envelope specification of different forms including rectangular, Blackman, Hamming, Hann, Bartlett windows
- Customizable test scripts, for example, search for hearing threshold (ABR)
Convenience and simplicity
Neuro-Audio (version 2010) consists of one unit, which can be connected to PC using single USB plug. All the stimulators and electrodes are connected directly to the unit. It is very convenient for a doctor performing the checkup as it saves the space and besides, decreases the device cost.
Auditory Stimulators
Neuro-Audio (version 2010) delivery set includes TDH-39 headphones. This is the most popular headphones model in the world for auditory evoked potentials study.
We can optionally supply Ear Tone 3A insert earphones, B-71 bone vibrator (is applied to estimate the cochlea reserve when determining the hearing loss stage), sound field speakers, TDH-39 acoustically shielded headphones, HDA-280 headphones.
|
Impedance indication on front panel
|
Connectors for the attachment of bone vibrator, OAE probe of third-party manufacturer. Headphones can be attached via 2×6.3 mm (mono) or 3.5 mm (stereo) connectors
|
Ear Tone 3A insert earphones
|
B-71 bone vibrator |
Neuro-Audio Software Features
Auditory brainstem response (ABR)
|
Pure tone audiometry (PTA)
|
Transient evoked otoacoustic emission (TEOAE)
|
Distortion product otoacoustic emission (DPOAE)
|
Electrocochleography (ECochG)
|
Multi-ASSR test
|
|
Neuro-Audio (Version 2010) Use as Audiometer
Neuro-Audio (version 2010) is a PC-based system providing a large number of different techniques for hearing evaluation. It should be noted that Neuro-Audio (version 2010) can be used as audiometer if you perform objective and subjective (pure tone) audiometry. Having compared the results obtained with these two techniques, a doctor can form a complete and clear view of patient's hearing threshold. Here you can read the descriptions of objective audiometry (multi-ASSR) and subjective (pure tone) audiometry.
Objective Audiometry
The objective audiometry is used as a rule for hearing estimation of newborns and infants or when a patient can not participate in the exam (i.e. respond to acoustic signals generated during hearing test). One of the variants of objective audiometry is ASSR acquisition with simultaneous stimulation at four frequencies for both ears (multi-ASSR).
Multi-ASSR (multiple-frequency auditory steady-state response) technique is used to estimate objective frequency-specific hearing. The end result of a test is an estimated audiogram. Multi-ASSR test allows obtaining threshold values equal to behavioral ones with 15-20 dB accuracy. This technique is a further development of ASSR technique and is intended to minimize the exam duration due to simultaneous testing of both ears at four main audiologic frequencies (500, 1000, 2000 and 4000 Hz).
Neuro-Audio.NET Software Advantages
- Detection of frequency-specific hearing thresholds
- 1 or 2 channels (2-channel montage is possible as for ABR)
- Minimization of test duration: both ears simultaneously at 4 carrier frequencies
- Independent intensity control for each of 8 stimuli
- All ASSR data are displayed on single screen (including response probability and spectrum)
- Monitoring of response amplitude and noise floor per ear and per frequency
- Effective stimulus enhancing the response amplitude (expotential modulation, narrow-band chirp)
- Accurate objective technique of response detection (F-test)
- Weighted averaging (improving accuracy, reducing test time)
- Independence from patient’s state (2 modulation modes: 40 Hz (awake) and 90 Hz (sleeping))
|
Multi-ASSR technique: hearing threshold detection at 4000 Hz frequency |
Multi-ASSR technique: estimated audiogram |
Subjective (Pure Tone) Audiometry
Subjective (pure tone) audiometry is hearing test allowing to detect the hearing thresholds at different frequencies. To perform the technique, auditory stimulator (headphones, bone vibrator) and patient button are required. Pure tone stimuli of different frequency and intensity are delivered to a patient using an auditory stimulator. If a patient hears the stimulus (tone), she/he gives a response by pressing a patient button. After that the hearing loss degree is defined and the accurate data concerning frequencies where hearing deviates from normal one are provided. The end result of a test is an audiogram which gives a clear notion of hearing loss and has great value for correct selection and adjustment of hearing aid.
|
|
Pure tone audiometry. Exam report |
Variants of Delivery Set
Three delivery set variants are available, these are Neuro-Audio (version 2010), Neuro-Audio/OAE (version 2010), Neuro-Audio/ABR (version 2010)
|
Available Techniques
|
Neuro-Audio |
Neuro-Audio/OAE |
Neuro-Audio/ABR |
|
ABR / BERA
|
+ |
ABR option*
|
+ |
|
VEMP
|
|
AEP: MLR, LLR
|
|
TEOAE
|
+ |
+ |
OAE option*
|
|
DPOAE
|
|
ASSR
|
ASSR option*
|
|
ECochG
|
ECochG option*
|
|
Cognitive EP (MMN, P300)
|
Cognitive EP option*
|
|
PTA
|
PTA option*
|
+ included in the base delivery set
* is supplied optionally by special order
 Neuro-Audio (version 2010) Delivery Set
Neuro-Audio (version 2010) Extra Delivery Set
- Neuro-Audio/ASSR software (“Neuro-Audio.NET” software with ASSR module)
- Neuro-Audio/Multi-ASSR software (“Neuro-Audio.NET” software with Multi-ASSR module)
- Neuro-Audio/P300 software (“Neuro-Audio.NET” software with P300 module)
- Cognitive EP option (software and equipment for cognitive (P300) EP recording, analysis and storage)
- Neuro-Audio/ECochG software (“Neuro-Audio.NET” software with ECochG module)
- ECochG option (software and equipment for ECochG recording, analysis and storage)
- Neuro-Audio/PTA software (“Neuro-Audio.NET” software with PTA module)
- PTA option (software and equipment for pure tone audiometry)
- Insert earphone
|
neuro-audio (for print).zip
| 2005—2012 © Neurosoft, Ivanovo, Russia