What is the full form of CT and MRI? Where are they used?

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Computerized Tomography / Computed Tomography (CT)

Magnetic Resonance Imaging (MRI)

Diagnosis of cancer in human body may involve certain types of imaging techniques. CT and MRI  are very useful to detect cancers of the internal organs.

COMPUTERIZED TOMOGRAPHY / COMPUTED TOMOGRAPHY (CT):

Oncologist obtain a computed tomography (CT) scan of pelvis and abdomen to check the extent of the cancer and if cancer had reached to any other organs.

CT Scan uses X-rays to generate a three-dimensional image of the internals of an object. In other words this medical imaging procedure uses a focused beam of low dose X-rays and digital computer technology to create cross-section images of the body.

MAGNETIC RESONANCE IMAGING (MRI):

Magnetic resonance imaging (MRI) creates images of soft tissues and unlike X-ray MRI does not expose the person to radiation.

This technique involves strong magnetic fields and non-ionizing radiations to detect pathological and physiological changes in the living tissue.

To explain it further, MRI uses radio waves emitted by hydrogen atoms and produce high resolution images of the patient's body. MRI is an advanced imaging technique useful for analyzing tumors in tissues surrounded by bone (tumors of the brain or spinal cord etc.), even when they are hidden behind the bone. This technique can differentiate tissues (pathological & physiological differences between tissues) in places that cannot be diagnosed effectively with the classic approach of viewing an X-rays.

answered by Shivani Nayak
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