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A 52-year-old male asked:

what are advantages of mrt (magnetic resonance tomography) scan over mri (magnetic resonance imaging) scan? are these equally safe?

1 doctor answer1 doctor weighed in
Dr. Elden Rand
Cardiology 21 years experience
Same: Those are equivalent terms for the same type of imaging. No x-rays or iodine containing contrast is used for MRI studies. Here is a helpful link. http://www.mr-tip.com/serv1.php?type=db1&dbs=Magnetic%20Resonance%20Tomography

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A 21-year-old member asked:

X-rays & mris: are they necessary?

3 doctor answers12 doctors weighed in
Dr. Kenneth Cheng
Family Medicine 31 years experience
Can be necessary: Most physicians have had medical professors in medical school tell them that x-rays (including mris) and blood tests are only needed to confirm what one is already thinking. Confirmation, however, may be necessary when the answer is not so obvious.
A 21-year-old member asked:

What will a ct/mri or ultrasound (us) show?

2 doctor answers4 doctors weighed in
Dr. Stephen Saponaro
Specializes in Radiology
Images of the body: Ultrasound, ct, and MRI are three different types of imaging procedures which allow the radiologist see what's going on in your body. Each modality has it's own strengths, weaknesses, and indications. The best use of each is guided by the radiologist. The radiologist interprets at the images and provides a report to your doctor.
A 21-year-old member asked:

What is a t1 hypointense marrow mean in relation to an MRI done on a 20 month old boy?

1 doctor answer1 doctor weighed in
Dr. Justin Buchanan
Radiology 12 years experience
Need more info: It depends on the body part imaged and why the MRI was performed. Marrow can be hypointense normally in certain parts of the body. In childhood, a "marrow conversion" occurs where marrow in certain parts of the body changes from t1 hypo to t1 hyperintense. So, just depends on the situation.
CA
A 40-year-old member asked:

What is better, a MRI or a pet scan?

4 doctor answers9 doctors weighed in
Dr. Jonathan Dissin
Neurology 39 years experience
Depends on the ?: It depends on what you're investigating. If you want to know the metabolic activity of an area of brain in a disease state or in response to certain medications, then pet is the study of choice. However, if you want to visualize small or large lesions, vascular abnormalities, destruction of myelin, trauma etc. Then MRI is a better choice. Pet is used primarily for physiologic studies & research.
A 22-year-old member asked:

What is the difference between mris & pet scans?

3 doctor answers3 doctors weighed in
Dr. Maureen Nash
Geriatric Psychiatry 24 years experience
Structure v Function: A pet scan tells us which cells are taking up glucose which is a measure of functioning. Cancer cells take up too much glucose and other illnesses like dementia have cells that do not take up enough glucose. An MRI scan is a structural test and shows the outlines of cells and how big they are. Mri's are often most useful for looking at soft tissue.

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Last updated Jan 7, 2020

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