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Imaging test may pinpoint age-related hearing loss

The Hearing Review Aug 31, 2022

A well-known imaging test that radiologists use to monitor blood flow from the heart may soon be deployed to pinpoint what part of the ear is experiencing age-related hearing loss, according to an article published on the University of South Florida’s website.

Robert Frisina, distinguished university professor and chair of the USF Department of Medical Engineering, is working with Moffitt Cancer Center to develop a cutting-edge imaging test that more accurately identifies age-related hearing loss. His team is focusing on the cochlea, a hollow, spiral-shaped, fluid filled cavity in the temporal bone – also called the inner ear – that has a “biological battery” needed for transmitting sound vibration information to the brain. Over time, the battery deteriorates, and it has been nearly impossible to clinically determine why.

“Diagnosing how healthy this biological battery is in patients is not yet possible. Our innovative imaging approach may make this doable in the near future for otolaryngologists and audiologists,” Frisina said.

The research team is using medical imaging involving the use of a tracer – a small amount of radioactive material that will allow radiologists to see what’s occurring inside the ear. It’s administered through an IV and is commonly used during positron emission tomography (PET) scans.

By differentiating the functionality of different parts of the cochlea, physicians can prescribe medication that will treat that specific area as a future option other than taking the blanketed approach of prescribing hearing aids.

Frisina is now fine-tuning the procedure with an R1 research grant from the National Institutes of Health (NIH). He hopes that by combining biomedical engineering and imaging with hearing sciences, his team will begin clinical trials at the conclusion of the two-year grant period – ultimately achieving this translational breakthrough for individuals experiencing hearing loss.

This study is in addition to an ongoing $9 million grant awarded to Frisina’s team by the NIH to better understand the causes of age-related hearing loss and develop a medication to treat it. He and his group patented a new medication in 2019 and are currently seeking to work with a pharmaceutical company toward FDA approval.

The Department of Medical Engineering is a rare, joint program between the USF College of Engineering and USF Health Morsani College of Medicine. It was established in 2019 with special funding awarded to USF following its designation by the Florida Board of Governors as a Preeminent State Research University. 

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