What kind of mri are there

An MRV is less common because vein diseases are less common than diseases of the arteries. The most common condition that doctors utilize MRV to evaluate is cerebral venous thrombosis CVT , a blood clot in a cerebral vein in the brain which drains blood from the brain. CVT can cause a hemorrhage, brain swelling, or stroke-like symptoms if left untreated. Skip to main content. Real-time MRI, which continuously monitors moving objects in real time.

A closed MRI machine is a large tube that a patient lays in. This style of scanner almost always produces images that are of very high quality. Patient comfort in these machines is sometimes a problem. The small tube that a patient must lay in can cause a patient who is claustrophobic to panic. The MRI machine requires the patient to lie very still; someone who is moving around can make scanning almost impossible.

The small opening size of some closed MRI machines means that overweight patients simply cannot be scanned. In an effort to allow claustrophobic patients more comfort and to allow obese patients to be scanned, the open MRI was developed. Older open type scanners did not produce very good quality images due to a reduced number of magnets. The new machines come very close to matching those seen in a closed MRI.

These still require a patient to lie down, but do not completely enclose the patient. Comfort is a very important part of patient care. The desire to increase comfort led to the development of MRI machines that allow patients to stand or sit. In the future these machines may improve in quality, which will make them much more useful.

Right now they are only useful in very specific circumstances. Share on Facebook. Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.

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