It helps to measure difference aspects of tissue metabolism such as Distribution of blood flow Oxygen utilization Protein synthase It helps to improve the staging of neck. FDG-PET can detect
Position emission tomography (PET) identifies pathology based on altered tissue metabolism The fundamental imaging relies on radioactive molecule (radio tracer) that decays with positron emission . Method The radiotracer (FDG
Functional magnetic resonance imaging techniques. This technique relies on the fact the cerebral blood flow and neuronal activation are coupled. When an area of the brain is active, blood flow
f-MRI is one of the most versatile tool in cognitive neurosciences. The grey matter is active during sensory, motor and cognitive activity . It can be defined based on the
A. History Medical history: Case of deafness the status of cochlea The extent of spiral ganglion survival Viability of auditory nerves and CNS pathway Abnormalities like otic capsule, IAC, intralabyrinthine
→The different components of cochlear implant are: Internal part (implant): placed surgically beneath the scalp Array of electrode inside cochlea Body of implant which contains a receiver/stimulator: decodes the signals
ARTERIAL SUPPLY Blood supply to the cochlea is highly complex The labyrinthine artery which is an end artery supplies the inner ear . This is a branch of anterior inferior
The following are the advantages of binaural hearing: Better hearing sensitivity: binaural summation wherein the loudness of sound is increased when perceived from both ear rather than one. Greater elimination
Digitally programmable hearing aids employ conventional analogue circuits for changing the sound, but use a digital control circuit to alter the characteristics of the analogue circuit. These permits the flexibility
Bone anchored hearing aids (BAHA) are implantable hearing aids which works by directly stimulating inner ear via bone conduction. It is the registered trademark of bone conduction hearing aid manufactured
Protection