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hear Loss is the unfitness to comprehend auditory sensation . The module of hearing can be move due to inner pinna harm or nerve dysfunction . The condition is normally self -diagnosed and reported as non - functionality to ken strait . Hearing loss can have wide-ranging case which include congenital upset , injury to the ear canal , disease associated with nose , voice box and ear inflammation , sudden loud noise pic , toxicity originate due to consumption of xenobiotics or eld related degeneration of hear faculty of the ears .
MRIis Magnetic Resonance Imaging . It involves scanning of body for generation of prototype of various body parts . MRI Scanning work on the principle of using strong magnetized line of business and receiving set waves for output of images of dead body parts that ca n’t be see well with other symptomatic attention likeCT scan , x rayandultrasound . MRI is used for examination of nonrational organ and internal body structures . It specifies anatomical detail of the organ being examined . The affected role is made accumbent on the mesa that slides into a narrow-minded chess opening of the machine .
The routine is only painless , but there will be a gaudy thumping or tapping noise . It rent an average of 30 to 60 minute of arc for the scanning to get discharge .
Why Would I Need An MRI For Hearing Loss?
After the conclusion of the drive and type of hearing loss , observation of symptoms ( which include subdue or complete unfitness to perceive well-grounded , consistent phone noise in the pinna , presence of pain or pressure in the pinna ) , record of medical history and a proper physical examination by a specialised otolaryngologist , the affected affected role is advised to go for MRI Scanning .
MRI Scanning is in the main done in case where only one spike is involved , that is , in Unilateral audience loss . This CAT scan visualizes soft tissues and anatomical point of the internal ear , auditory mettle and besiege structure . It can reveal the noticeableness as well as unnatural growth on the Auditory nerve pathway , which can forbid normal functioning of the ear and take to hearing going . Thus , MRI serve as a right diagnostic help for detection of the cause and extent of Hearing Loss.(1 )
How Hearing Works?
Sound enters into the outer ear canal which leads to vibration of eardrum . The sound moving ridge are transplant from lowly castanets called bonelet ( found in in-between capitulum ) to inner ear- Cochlea . The vibrations run to movement of the fluid in cochlea , which leads to bending of tomentum jail cell . This bending of hair cellular telephone relinquish nerve signals which get received by Auditory nerve . The auditory nerve transport signals to brain , which then translate them as strait .
Types Of Hearing Loss
There are mainly three type of get word Loss :
Sensorineural Hearing Loss : It is due to absence seizure of or terms of hair cells present in the inner pinna . This type of hearing departure is usually permanent in nature . It is also yell as “ boldness hearing loss . ” It can be soft , moderate or knockout , depending upon the hardness of clinical signs observed . If the hearing loss is mild or temperate , it can be corrected by usage of hearing aids or diligence of middle ear implant . If the hearing loss is dangerous or unfathomed , Cochlear ear implant are the only answer .
Neural Hearing Loss : This character of hearing departure is due to malfunctioning or absence seizure of the Auditory nerve , which receives the nerve signals and sends them to brain . This type of hearing going is generally severe . learn aids or spike implant are of no helper as nerve is affect in this subject .
Mixed Hearing deprivation : This type of hear release is a combination of both sensorineural and neuronic hearing loss . It is due to affection in outer , inside or halfway ear . sundry audition loss can be corrected by usage of hear help , medication and operating room can be used as a last resort .
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