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

Question

Is there something they will give me for anxiety when i'm doing the positron emission tomography scan?

Answer 1

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

Answer 2

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.

Answer 3

Yes: Before we had modern medical imaging, doctors would often be lead to the incorrect diagnosis. Even now with imaging, the doctor may still not get the correct diagnosis but her chances are much better. Imaging can save you unnecessary surgery or help the surgeon plan better. That said, many xrays are not necessary and always question your doctor before getting any imaging.

Answer 4

Good question: X-rays, MRI, ÇT and medical imaging can be useful to diagnose disease, infection and cancer. Some use radiation and they are not cheap. Whether they are necessary and can help you is determined by the person ordering the exam. If the clinician has a high level of suspicion for a disease or problem that can be seen by the test, then the exam may be useful. You should not image without a reason.

Answer 5

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.

Answer 6

More info: Each imaging modality can be optimized to help learn more about diseases and help answer questions your for your doctor and you. For example, ultrasound is good at looking at the gallbladder; ct can show bleeding in the brain; MRI can show an acute stroke or find masses in the liver.

Answer 7

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.

Answer 8

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.

Answer 9

Depends: An MRI and cat scan article imaging techniques but differ at detecting different kinds of diseases or conditions. Depending on what your doctors looking for, either technique may be preferred. For example, a pet scan may be more helpful for evaluating cancer. Mri may be helpful for musculoskeletal conditions. Please consult with your physician for further recommendations.

Answer 10

Depends on disease: Mri scans look at the structure of the body, the anatomy, and the way diseases change or distort it. Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy.

Answer 11

Depends..: Depends on what you are looking for. PET measures glucose metabolism. Increased glucose metabolism can be seen in tumors, infection, and inflammation. PET can be fused with MRI or CT to visualize anatomy and localize glucose uptake. MRI is good for looking at soft tissues and brain.

Answer 12

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.

Answer 13

Anatomy: Mri is a picture of structure or anatomy, and does well demonstrating brain pathology with changes in normal anatomy. Pet scanning shows functional metabolic brain derangements, and can illustrate cancers, alzheimer's, various dementias, and abnormal brain handling of normal chemicals such as glucose. Pattens can be diagnostic.

Answer 14

Anatomy vs Physiolog: Mri and ct look at the structure of the body, the anatomy, and the way diseases change or distort it. Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy.

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

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