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Doctor insights on: Acoustic Reflectometry

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Dr. Jan Lei Iwata
1 doctor shared a insight

Acoustic Reflectometry (Overview)

The device sends out a sound that bounces off the eardrum and then measures the eardrum's mobility. Normal movement generates "greater than 120". If there is fluid behind the drum dampening the movement the number can be as low as 40. It's a quick and easy measurement of middle ear fluid.


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What is the definition or description of: acoustic reflectometry?

What is the definition or description of: acoustic reflectometry?

Sound wave: The device sends out a sound that bounces off the eardrum and then measures the eardrum's mobility. Normal movement generates "greater than 120". If there is fluid behind the drum dampening the movement the number can be as low as 40. It's a quick and easy measurement of middle ear fluid. ...Read more

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Dr. Jan Lei Iwata
1 doctor shared a insight

Acoustic Reflectometry (Overview)

The device sends out a sound that bounces off the eardrum and then measures the eardrum's mobility. Normal movement generates "greater than 120". If there is fluid behind the drum dampening the movement the number can be as low as 40. It's a quick and easy measurement of middle ear fluid.


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How do we know that we have acoustic neuromas?

How do we know that we have acoustic neuromas?

Imaging w CT/MRI : See link via epocrates, you need to see your doctor for a work up, in my 30 yrs I have only seen a hand full; https://online.Epocrates.Com/u/2934731/acoustic+neuroma. ...Read more

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What is acoustic neuroma?

What is acoustic neuroma?

Balance nerve tumor: "acoustic neuroma" is actually a double misnomer: it is neither from the acoustic nerve nor is it a neuroma. It is actually a vestibular schwannoma: a benign tumor of the schwan cells (cells that wrap around and insulate nerves), not of the nerve itself, that grows off of / around the vestibular nerve, the nerve for balance, rather than the acoustic nerve or nerve of hearing. ...Read more

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Acoustic neuroma testing?

Hearing tests: Almost all acoustic neuromas are associated with hearing loss, but other neurological signs may be found on exam, including problems with gait, facial sensation, and double vision. Diagnosis can be confirmed, or excluded, by careful MRI films of the base of the brain. ...Read more

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How is acoustic neuroma treated?

Several ways: Acoustic neuromas may be treated by observation, surgery, or radiation. The choice of treatment is based on the size of tumor, the presenting symptoms and the age of the patient. ...Read more

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Do people die from an acoustic neuroma?

Rarely: Acoustic neuromas are slow growing benign tumors that rarely get to a size that can cause death. They are not cancers. ...Read more

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Can you tell me about acoustic neuroma?

Can you tell me about acoustic neuroma?

Benign tumor: Acoustic neuroma is a benign tumor that usually originates from the vestibular(balance) nerve. Treatment options include observation, surgery, or radiation depending on the symptoms, age of the patient, and growth of the lesion. See a neurotologist for full evaluation or a neurosurgeon that deals with these lesions on a regular basis. ...Read more

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What are the tests for acoustic neuroma?

Mri: Audiograms with differ ence in hearing between ears may require further evaluation, but MRI scan with contrast material remins gold standard for diagnosis of acoustic neuroma some centers may have "stacked abr" testing but not widely available. ...Read more

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