FAQ's Regarding Vestibular Testing
Frequently Asked Questions:
What’s the difference between ENG and VNG?
How long does the procedure take? How soon can I get my results?
Who can perform the procedure?
How much space is needed to perform the procedure?
Can you tell me about the training?
Is the equipment portable from one office to another?
What’s the next step in the evaluation process?
Do you have a local rep who can demonstrate the equipment?
What is my per-patient cost for a study?
1. What’s the difference between ENG and VNG?
Both tests record eye movements. The ENG uses electrodes, while the VNG uses a
camera. The VNG has some significant disadvantages:
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The fastest VNG camera ($70,000.00 unit) records only 75 samples per secondcompared to the 500 samples per second that the ENG records.
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The 9 pages of raw data from the VNG will need to be sent off to be read by aspecialist for a fee.
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The level of expertise required of the technician is must higher with VNGcompared to the ENG.
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VNG goggle slip during the head-shake testing will yield false readings.•
A patient is unable to wear his glasses during a VNG test in which a significantportion of the testing the patient is asked to follow a stimulus with his eyes.
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2. How long does the procedure take? How soon can I get the results?
A study takes approximately 25-30 minutes to perform. Best of all, the results can be
printed immediately.
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3. Who can perform the procedure?
A trained technician, a nurse, a medical assistant or a physician may perform the
procedure.
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4. How much space is needed to perform the procedure?
The entire system can be perform in any average exam room or a hallway. When not in
use the system can simply be rolled out of the way.
Top 5. Can you tell me about the training?
The initial set up, training, and follow-up training is all on site. Ongoing phone support
will be readily available.
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6. Is the equipment portable from one office to another?
Yes! The equipment is portable. A custom metal case is provided with the system to
insure safe transport from office to office.
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7. What’s the next step in the evaluation process?
We can schedule a phone conference with you. During that call, we’ll answer any
questions you have. If you decide to move forward, we can help with financing and set
up our “demo/install” date (see next question).
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8. Do you have a local rep who can demonstrate the equipment?
We have a small staff and market nationwide. So we’re usually not available for a
simple demo in your office. However, we offer a solution that works for all of our
clients, called the “demo/install.”
Once you have all of the pertinent information needed to make a decision on paper, we
will set up a “demo/install” day. Here, we’ll come to your office to train your staff and
test patients. If, for whatever reason, you are not 100% satisfied with the equipment
quality and test results, we’ll simply pack up and go home. But if all goes as expected,
we’ll finalize your purchase, finish your training and start the billing process on the
patients tested.
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9. What’s my per-patient cost for a study?
The test costs are under $5.00 per patient including: electrodes, prep wipes, paper, and
other incidentals.
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