NSAudiology is a leading Hearing and Balance Clinic located in the inner suburbs of Sydney. Each of our custom built clinics have the most up to date diagnostic equipment available. We offer an extensive range of diagnostics conducted by highly experienced and fully trained Audiologists. We work closely with medical professionals to deliver outstanding and reliable services.

 

NSAudiology's Diagnostic Services

NSAudiology7113Adult Hearing Test: Pure Tone Audiometry is the standard behavioural procedure for measuring an adults sensitivity to auditory stimulus. With a series of ‘pure tones’ the softest level that can be heard is determined over approximately eight frequencies. The information indicates general communication abilities and areas which may need rehabilitation.


Speech Testing is used to determine communication ability at different intensity or decibel (dB) levels. By performing this test we can demonstrate if distortion of sound is occurring at a cochlea level which provides important information for the rehabilitation process.


Tympanometry is conducted to determine how the middle ear is functioning. A small change in pressure is presented to the outer ear canal. The results obtained indicate how the tympanic membrane moves in relation to that change. Through recording this movement we can determine normal or abnormal function of the middle ear.


Paediatric Hearing Test: The manner in which a child is tested is determined by their developmental age. The test batteries used at NSAudiology for testing children includes Visual Reinforcement Observation Audiometry which is the behavioural procedure used to test children from the developmental age of 9 months through to 2 ½ years. The child is conditioned to turn to a series of pure tones, to ensure a consistent response a reward is shown after a clear head turn is considered a response.


For children with the developmental age of 2 years to 5 years Play Audiometry can be conducted. Again a response to an auditory stimulus needs to be conditioned, this is achieved with a play task. The child is trained to wait for a stimulus and then respond with a game task. From 6 years on children can usually be tested using Pure Tone Audiometry.


Auditory Brainstem Response (ABR / BERA) is a diagnostic electrophysiological test used to rule out the incidence of a retro-cochlea pathology. Three electrodes are placed onto the skin and insert earphones are placed in the left and right ears. A click stimulus is presented into the test ear and a masking tone in the opposing ear. Subsequent recordings from both ears are compared, analysed and the report is sent to medical specialists (Ear Nose and Throat) for further examination and discussion with client.


Patient Information for ABR: As a standalone test the caloric can take up to 30 minutes to complete.. A patient undergoing an ABR test will have several surface electrodes placed on their head. A tiny earphone will be inserted into both ears and click noise will be heard in both ears separately one at a time. Patient response is not required and results are gained faster and more reliably when patients are in a relaxed still state.


VideoNystagmography (VNG): This is a test of balance function. This diagnostic test procedure is used to examine a portion of the organ of balance, the semi circular canals which are located in the inner ear. By observing and recording eye movements a vestibular or central pathology could be identified that may be responsible for symptoms which may include the sensation of spinning, unsteadiness, or nausea.


Patient Information for VNG: As a standalone test the caloric can take up to 25 minutes to complete. A patient undergoing a VNG will have video recording goggles placed over the eyes to allow for observations of eye movement. A series of very simple eye exercises are then conducted.


Things to note pre appointment:

  • Please do not consume any alcohol 48 hours prior to testing
  • Under advisement from your prescribing physician please do not take any medication that is related to the correction of balance problems
  • Please do not wear any eye makeup of any description

Caloric Testing is often performed in conjunction with VNG testing, and is usually conducted on patients experiencing vertigo, loss of balance or dizziness. This test indicates pathology of the semicircular canals and can indicate the site of a lesion. It is conducted by artificially stimulating the semicircular canals with temperature change and observing eye movements. This test temporarily stimulates the vertigo and dizziness that the patient has been experiencing.


Patient Information for Caloric: As a standalone test the caloric can take up to 45 minutes to complete. A patient undergoing a caloric will have video recording goggles placed over the eyes to allow for observations of eye movement. The ears are then individually irrigated with a temperature controlled airflow. This elicits a sensation of rotary vertigo or dizziness which is considered a normal response of the vestibular system. As this is an artificial stimulation of the vestibular system the symptoms experienced dissipate within minutes.

InnerEar-AnatomyCortical Evoked Response Audiometry (CERA) is an electrophysiological test of hearing which is often used to confirm results gained from behavioural testing as it does not rely on client response. By presenting pure tone stimulus at varying decibel levels in each ear, electrodes placed on the skin collect information which is recorded as waveform traces. If a consistent pattern is indicated on traces hearing levels can be determined at any number of testable frequencies.


Patient Information for CERA: As a standalone test the CERA can take up to 90 minutes to complete. A patient undergoing a CERA test will have several surface electrodes placed on their head. An earphone will then be inserted into both ears and a series of click noises will be heard. This test does not rely on patient response and we often require a state of still alertness. It is recommended that you attend with reading material that interests you.


Auditory Steady State Response (ASSR) is an electrophysiological test of hearing used to determine thresholds without the need for client response. Pairing the CERA and ASSR tests can determine objective hearing thresholds and hearing loss in patients who are unable to respond to Pure Tone Audiometry testing.


Patient Information for ASSR: As a standalone test the ASSR can take up to 40 minutes to complete. A patient undergoing an ASSR test will have several surface electrodes placed on their head. A tiny earphone will be inserted into both ears and noise will be heard in both ears simultaneously. Patient response is not required and results are gained faster and more reliably when patients are in a relaxed still state.


Vestibular Evoked Myogenic Potentials (VEMPS) is an electrophysiological test conducted to help identify the area of pathology in cases of vestibular disturbance. By placing electrodes on the skin a pure tone is presented and eye movements are recorded. This test can be used as part of the diagnosis of Meniere's Disease.

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Electrocochleography (ECoG): The electrocochleography test is an objective measure of the electrical potentials generated in the inner ear as a result of sound stimulation. This test is most often used to determine if the inner ear (cochlea) has an excessive amount of fluid pressure. Excessive fluid pressure in the cochlea can cause symptoms such as hearing loss, aural fullness, dizziness, and/or tinnitus. These symptoms are sometimes indicative of certain ear pathologies such as Meniere’s disease or endolymphatic hydrops. The results that we gain by performing ECog can often assist in the diagnosis of Meniere’s disease.


Patient Information for ECog: The Ecog can take up to 40 minutes to complete. A patient undergoing an Ecochg test will have several surface electrodes placed on their head. A tiny microphone and an earphone will then be inserted into the canal of the test ear. Results are gained faster and more reliably when patients are in a relaxed still state.


Tinnitus


Tinnitus is a physical condition, experienced as noises in the ears or head when no such external physical noise is present. It is the perception of sound which can manifest in many forms: ringing, hissing, ocean wave noise, heartbeat, even bagpipes which is in the absence of any auditory stimulus. Tinnitus is usually caused by a fault or change in the hearing system; it is a symptom, not a disease in itself.


There are many triggers for tinnitus including: hearing loss, stress, wax build up, pathology in the middle and inner ear and, in extremely rare cases, specific pathologies within the brain.


Tinnitus is a common condition, with studies estimating that between 10-15% of the population report having tinnitus (Andersson, et al. 2005). Countries with self-help groups include USA, UK, Germany, Canada, New Zealand and, of course, Australia. For Australian details please refer to the Australian Tinnitus Association. www.tinnitus.asn.au NSAudiology is an active member of the Australian Tinnitus Association. For most people tinnitus is generally only a minor annoyance, however; for 1-2% of the population it significantly impacts on their quality of life. Severe tinnitus is recognised as a very major affliction with frequent complaints relating to tinnitus impacting on patients' inability to sleep, relax or concentrate.


There is hope for people whose tinnitus impacts on their life, and their perception of tinnitus can be significantly reduced. NSAudiology has successfully rehabilitated many clients using the most up to date tinnitus diagnostics and management.


NSAudiology provides an extensive tinnitus management program. The initial assessment includes: a hearing test (audiogram) with extended frequencies to 14000 kHz, a test of the middle ear function (tympanogram), and a comprehensive evaluation to determine what level of involvement may be required to facilitate the management of an individual's tinnitus. If there is any need for further investigation, NSAudiology refers to Ear, Nose and Throat specialists, Psychologists and a range of other medical professionals.


Some of NSAudiology's customised therapies include:

  • Employing environmental low-tech devices
  • Wearing a hearing aid for those with a measureable hearing loss
  • Neuromonics ( NSAudiology is a qualified treatment provider)


Take the first step in taking control of your tinnitus, contact us to arrange an appointment today.