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Wednesday, 24 October 2018

Applications and Advantages of MRI over CT Scan

Applications of MRI:

1. Diffusion MRI measures the diffusion of water molecules in biological tissue
2. Magnetic Resonance Angiography (MRA) is used to generate pictures of arteries in order to analyze their working and abnormalities.
3. Functional MRI measures signal changes in the brain that are due to changing neural activity.
4. In clinical applications, MRI is used to distinguish pathologic tissues such as brain tumor from normal tissues.
 5. An MRI scan can be used as an extremely accurate method of disease detection throughout the body.
6. Neurosurgeons use an MRI scan in order to define brain anatomy and to evaluate the integrity of the spinal cord.
7. It provides valuable information on glands and organs within the abdomen.

Advantages of MRI over CAT:

1. The most important advantage of MRI scan is that it is proved to be harmless to the patients.
2. It uses a strong magnetic field and non-ionizing radiation in the RF range.
3. MRI provides good contrast resolution than CAT scanning. The contrast resolution is the ability to distinguish the differences between two arbitrarily similar but not identical tissues.
4. In MRI by variation of scanning parameters, tissue contrast can be altered and it can be changed in various ways to detect different features.
5. MRI machines have the ability to change the imaging plane without moving the patient.
6. As the MRI scanning does not use ionizing radiation, it is best suited for cases when a patient is to undergo the test several times successively.
7. The brain, spinal cord and nerves are seen much more clearly with MRI scan

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