Skip to main content
Accessibility|Contact|Privacy|Terms of Service

Detecting Tinnitus Sound

  • Published: 2009-10-03 : Author: Henry Ford Health System
  • Synopsis: Non invasive imaging technique can actually aid in the diagnosis of tinnitus.

Main Document

Henry Ford Hospital study finds that a non-invasive imaging technique can actually aid in the diagnosis of tinnitus and may detect a reduction in symptoms after different treatments, offering hope to the more than 50 million patients with tinnitus.

Study: The new buzz on detecting tinnitus

It's a ringing, a buzzing, a hissing or a clicking - and the patient is the only one who can hear it.

Complicating matters, physicians can rarely pinpoint the source of tinnitus, a chronic ringing of the head or ears that can be as quiet as a whisper or as loud as a jackhammer.

Now a Henry Ford Hospital study finds that a non-invasive imaging technique can actually aid in the diagnosis of tinnitus and may detect a reduction in symptoms after different treatments, offering hope to the more than 50 million patients with tinnitus.

"Until now, we had no way of pinpointing the specific location of tinnitus in the brain," says study co-author Michael D. Seidman, M.D., F.A.C.S., director of the Division of Otologic/Neurotolgic Surgery in the Department of Otolaryngology-Head & Neck Surgery at Henry Ford Hospital.

This imaging technique, magnetoencephalography (MEG), can determine the site of perception of tinnitus in the brain, which could in turn allow physicians to target the area with electrical or chemical therapies to lessen symptoms, according to study results being presented Saturday, Oct. 3 at the American Academy of Otolaryngology-Head & Neck Surgery Foundation Annual Meeting & OTO EXPO.

"Since MEG can detect brain activity occurring at each instant in time, we are able to detect brain activity involved in the network or flow of information across the brain over a 10-minute time interval," explains co-author Susan M. Bowyer, Ph.D. bio-scientific senior researcher, Department of Neurology at Henry Ford Hospital. "Using MEG, we can actually see the areas in the brain that are generating the patient's tinnitus, which allows us to target it and treat it."

Imaging techniques currently used to study tinnitus in the brain - PET and fMRI - provide a general location but are not successful at determining the specific site in the brain that is generating tinnitus symptoms.

MEG, by comparison, measures the very small magnetic fields generated by intracellular electrical currents in the neurons of the brain. Only 20 sites in the U.S., including Henry Ford, are equipped with a MEG scanner. MEG is presently used at these sites for pre-surgical brain mapping for patients undergoing surgery for brain tumor removal or Epilepsy treatment.

"With PET and fMRI, most of the auditory cortex of the brain lights up with activity during imaging. MEG, however, is a much more sophisticated machine and it can identify a specific tone or topic point, so only a small area in the brain lights up. It's like having the lights on in only the city of Detroit, compared to having the lights on in the entire state of Michigan," explains Dr. Seidman, director of the Otolaryngology Research Laboratory and co-director of the Tinnitus Center at Henry Ford.

For the study, Dr. Seidman and his colleagues collected MEG results from 17 patients with tinnitus and 10 patients without tinnitus. MEG data were collected for 10 minutes, and then digitally filtered. Study participants wore ear plugs to eliminate outside sounds, and kept their eyes open and fixated on one point on the ceiling in the room during testing.

With tinnitus patients who have ringing in one ear (unilateral tinnitus), MEG imaging detected the greatest amount of activity in the auditory cortex on the opposite site of the brain from their perceived tinnitus. For patients with ringing in the head or both ears (bilateral tinnitus), MEG imaging revealed activity in both hemispheres of the brain, with greater activity appearing in the opposite side of the brain of the strongest perception of tinnitus.

Patients without tinnitus had multiple small active areas in the brain, but no particular areas were found to be highly coherent during the 10-minute MEG scan.

Ultimately, Dr. Seidman says the study establishes MEG as an effective clinical tool for localizing the probably source of tinnitus in patients' brains. It also has the potential to assist with the development of future interventional strategies to alleviate tinnitus.

About Tinnitus

The American Tinnitus Association estimates that more than 50 million Americans experience tinnitus to some degree; about 12 million have severe enough tinnitus to seek medical attention; and about two million patients are so seriously debilitated that they cannot function on a day-to-day basis.

The exact physiological cause or causes of tinnitus are not known. There are, however, several likely sources, all of which are known to trigger or worsen tinnitus, including exposure to loud noises, wax build-up in the ear, ear or sinus infections, head and neck trauma, and certain disorders, such as hypo- or hyperthyroidism, Lyme disease, fibromyalgia, and thoracic outlet syndrome can have tinnitus as a symptom.

Although there is no known cure for tinnitus, Henry Ford offers several options for coping with the condition, including hearing aids, sound generators and medication, and all come with ongoing counseling. The goal is to provide patients with relief from their tinnitus and a better quality of life.

Reference: "Detection of Tinnitus by MEG Using Coherence Imaging," 2009 AAO - HNSF Annual Meeting & OTO Expo. Dr. Seidman will present the study at 1 p.m. ET/10 a.m. PT on Saturday, Oct. 3.

Research Support: NIH/NINDS Grant R01-NS30914

Similar Topics

1 : Inner Ear Regeneration: Hearing Loss, Tinnitus and Vertigo : Dr. John Lieurance.
2 : Tinnitus Noise May Be Brain Trying to Repair Itself : Georgetown University Medical Center.
3 : Action Needed for Millions of Tinnitus Sufferers : Wiley-Blackwell.
4 : Detecting Tinnitus Sound : Henry Ford Health System.
5 : Learning to Live with Tinnitus : Paul.
From our Tinnitus section - Full List (6 Items)


Submit disability news, coming events, as well as assistive technology product news and reviews.


Loan Information for low income singles, families, seniors and disabled. Includes home, vehicle and personal loans.


Famous People with Disabilities - Well known people with disabilities and conditions who contributed to society.


List of awareness ribbon colors and their meaning. Also see our calendar of awareness dates.


Blood Pressure Chart - What should your blood pressure be, and information on blood group types/compatibility.





1 : Autism Prevalence Increases to 1 in 59 US Children
2 : Yelp Reviews of Nursing Homes Tend to Focus on Staff Attitudes and Responsiveness
3 : Non-Invasive Spinal Stimulation Enables Paralyzed People to Regain Use of Hands
4 : What if You Could Know Your Mild Cognitive Impairment Would Not Progress?
5 : Millennials Fail to Understand Dangers of Tanning
6 : Appetite Loss After Exercising Explained
7 : Bias Keeps Women with Higher Body Weight Away From the Doctor
8 : Smart Hoteliers are Building a Healthier Future


Disclaimer: This site does not employ and is not overseen by medical professionals. Content on Disabled World is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. See our Terms of Service for more information.

Reporting Errors: Disabled World is an independent website, your assistance in reporting outdated or inaccurate information is appreciated. If you find an error please let us know.

© 2004 - 2018 Disabled World™