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Image: MRI machine
Manufacturer: HITACHI
Model: Oasis
MRI stands for magnetic resonance imagining.
It deals with HYDROGEN molecule.
MRI is Non-ionizing imaging technique.
The RF coil produces a radio frequency simultaneously to the magnetic field.
This radio frequency vibrates (resonance frequency) which helps align the atoms in the same direction.
The radio frequency coil sent out a signal that resonates with the protons. The radio waves are then shut off. The protons continue to vibrate sending signals back to the radio frequency coils that receive these signals.
The signals are then ran through a computer and go through a Fourier equation to produce an image.
Bore (Magnet, Gradient coil, Schim coil, RF coil)
Trans-receiver.
Electronic measuring device.
Computer .
Storage mechanism.
It produce magnetic field.
By it body protons get align.
It will be around 0.5 to 3.5 Tesla.
Types: Permanent magnet.
Superconducting magnet.
Resistive magnet.
Gradient magnet.
Its function is to perform uniform distribution of Magnetic strength.
It select the plain of that area or organ of intrust. i.e(x,y,z)
It transmit RF frequency applied on proton.
The impact will be changing in phase.
It measures the misalignment of proton .
When protons get back to there original position after miss-alignment it measures the energy difference.
Used to image a large variety of tissues and substances.
• Brain imaging: to define anatomy, identify bleeding,
swelling, tumors, or the presence of a stroke
• To locate glands, organs, joint structures, muscles
and bone
The MRI can detect inflammation (tumors) in many tissues
ALSO!
Helpful in diagnosing problems with eyes, ears, heart,
circulatory system, lungs, pelvis, spinal cord, etc.
Thank you!!
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