Quote:
Originally Posted by 'Hamas' Jenkins
CT scans are like hundreds of X-rays of a cross-section of your body. When using contrast of a radio opaque dye, it can determine soft tissue abnormalities, like a pulmonary embolism.
MRI uses a magnetic field to realign polar (i.e. water molecules) back and forth. That reorientation creates an image. It's why MRI is good for assessing soft-tissue injury, like a ligament tear. Conversely, bone does not image well on MRI due to lack of water molecules.
MRI has better spatial resolution than CT. Both have their benefits.
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Can you tell us what are the different types of CT scans?