Navigation Links
MRI Detects Soft Tissue Damage Affecting Kids' Hearing
Date:9/16/2008

Scans could improve docs' ability to diagnose location of defects, study says

TUESDAY, Sept. 16 (HealthDay News) -- Soft-tissue defects that contribute to hearing loss in children can be detected using MRI, say U.S. researchers who analyzed the medical records of hundreds of children diagnosed with sensorineural (related to sensory nerves) hearing loss.

Radiography, including computed tomography (CT) and X-rays, is often used to look for bone structures problems in children with hearing loss. However, defects in the soft tissue within the bones may also cause hearing loss.

Of the 170 children in this study, ages one month to 17 years, 101 (59 percent) had hearing loss in both ears and 69 (41 percent) had hearing loss in one ear, adding up to 271 ears with sensorineural hearing loss. All the children had MRIs, which revealed:

  • 108 ears (40 percent) with inner ear abnormalities.
  • 87 ears (32 percent) with abnormalities of the cochlea, a spiral structure containing hair cells vital to hearing. Of those 87 ears, 63 (23 percent) had mild abnormalities of the cochlea, and 24 (9 percent) had moderate to severe abnormalities.
  • 49 ears (18 percent) had either missing (53 percent) or deficient (47 percent) cochlear nerves.
  • Ears with severe and profound hearing loss had more abnormalities (48 percent) than those with moderate hearing loss (29 percent).
  • Children with moderate, severe or profound hearing loss in one ear had more inner ear abnormalities (62 percent) than those with hearing loss of the same severity in two ears (38 percent).

The findings, by researchers at UT Southwestern Medical Center and Children's Medical Center Dallas, were published in the September issue of the journal Archives of Otolaryngology -- Head & Neck Surgery.

"Although the specific origin of sensorineural hearing loss may remain undiagnosed in many patients, a thorough workup to identify the cause of sensorineural hearing loss should be considered in each patient," the study authors wrote. "Historically, high-resolution CT has been the imaging modality of choice in the initial workup of these patients. However, the soft tissue structures of the inner ear responsible for the electrochemical transfer of sound to the brain, such as the membranous labyrinth and the cochlear nerve, are not evaluated well with high-resolution CT."

"With MRI, these soft tissue components of hearing from the cochlea to the auditory cortex can be elucidated, which should improve our ability to appropriately diagnose the location of the defect in these children with sensorineural hearing loss," they concluded.

More information

The American Academy of Family Physicians has more about hearing loss in children.



-- Robert Preidt



SOURCE: JAMA/Archives journals, news release, Sept. 15, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Sensor Detects Levels of Brain Chemicals
2. New nano device detects immune system cell signaling
3. Data mining detects signs of Lou Gehrigs disease in gene carriers long before symptoms appear
4. Prenatal biochemical screening only detects half of chromosomal abnormalities
5. Scan Detects Oxygen Levels in Tumors
6. Faster Test Detects Fake Tamiflu Drugs
7. MITs PANTHER sensor quickly detects pathogens
8. Laser Screen Detects Diseases in Breath
9. Yale test detects early stage ovarian cancer with 99 percent accuracy
10. Test Detects Sensitivity to HIV Drug
11. McMaster test detects the most prevalent respiratory viruses
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/18/2017)... ... January 18, 2017 , ... The Portee Insurance Agency, a family managed firm ... central Maryland and the DC region, is inaugurating a charity event aimed at fighting ... year, making it the #1 killer in America. However, heart disease is largely preventable, ...
(Date:1/18/2017)... ... January 18, 2017 , ... Michael ... new website for its Center for Biosimilars, announced Michael J. Hennessy Associates, Inc. ... in the field of biosimilars through thought leader interaction in, live video and ...
(Date:1/17/2017)... ... , ... January is National Stalking Awareness Month (NSAM), now in its fourteenth year, ... commit the crime of stalking, a very real danger to many in our community. ... stalking and other crimes. , “Stalking: know it. Name it. Stop it.”—so reads the theme ...
(Date:1/17/2017)... ... January 17, 2017 , ... Today, ... Dr. Carol Francis re-releases powerfully uplifting interview with medical expert and prolific author, ... endure and pass through tough times, Dr. Bernie Siegel energizes listeners to live ...
(Date:1/17/2017)... ... January 17, 2017 , ... Metro ... approach to infusing high speed technology into the fabric of an entire community. ... advancement of healthcare and wellness in a yet-to-be-named, health focused campus. Leading this ...
Breaking Medicine News(10 mins):
(Date:1/18/2017)... 2017   Seno Medical Instruments, Inc. , the ... through the development of an opto-acoustic (OA/US) imaging device, ... as SVP of Engineering. Mr. Miller previously served as ... with headquarters in Bothell, Washington . ... career to the development of innovative medical imaging products ...
(Date:1/18/2017)... -- Tarix Orphan LLC today announced that the U.S. Food ... (RPD) designation for the company,s drug candidate TXA127 for ... rare genetic skin disorder. There are currently no approved ... care. "The RPD designation for TXA127 in ... the FDA in this indication," said Richard Franklin ...
(Date:1/18/2017)... 18, 2017 After the recent election ... use of cannabis both for medical and recreational purposes are ... open to the use of cannabis, but the focus is ... Arcview Market Research, the North American legal cannabis market posted ... previous year. The research projects sales will grow at a ...
Breaking Medicine Technology: