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Tag: MD Question Bank

Jun 16
2017

What are the advantage of PET scan?

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

Jun 16
2017

What is fundamental mechanism (principle of PET) of FDG-PET scan?

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

Jun 16
2017

What do you know about f-MRI? Discuss how it is beneficial in ENT practice?

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

Jun 16
2017

What do you know about fundamental MRI? Discuss how it is beneficial in ENT practices.Write down the basic principles of fundamental MRI? Mention the application in Otolaryngology?

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

Jun 14
2017

How do you assess the child before the cochlear implant surgery? What are the controversies in cochlear implant surgery?

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

mbbs
Jun 13
2017

Describe the different components of cochlear implant. Mention patient selection criteria for cochlear transplant surgery. What are the advantage of multi channel over single channel cochlear implant?

→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

blood
Jun 12
2017

Describe the blood supply of Cochlea

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

binaural hearing
Jun 12
2017

Write down the advantage of binaural hearing. What is cocktail effect?

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

hearing aid
Jun 12
2017

What are the digiatally programable hearing aids? What is its advantage over conventional hearing aids?

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

BAHA
Jun 12
2017

Write short note on BAHA. Mention the various components of BAHA. Is the outcome of BAHA is better than that of AC hearing aids?

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

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