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A 52-year-old female asked:

my very low reading of igf-1 is being investigated by glucagon test and mri. if the cause of low igf-1is malabsorption, will these tests show this?

1 doctor answer1 doctor weighed in
Dr. Stuart Hickerson
Family Medicine 32 years experience
Test: The testing is to see if your growth hormone access is intact. This includes your hypothalamus, pituitary and then your liver which is where IGF 1 comes from. The test will not assess malabsorption.

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

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

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CA
A 40-year-old member asked:

What is better, a MRI or a pet scan?

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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
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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 Jun 24, 2016

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