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What is the difference between a pet scan and a cat scan? |
no obnoxious answers please I want a serious answer. a cat (computerized axial tomography) scan gives a 3D image of the body by looking at horizontal "slices" of the body- so the organs can be viewed as they are spatially. It is a fancy version of a plain x-ray that just shows a view from one angle- everything on top of the other. A pet scan is different primarily in that it gives information about function, not just form. A solution of glucose molecules that have been "tagged" with a radioactive marker is injected into the patient through a vein. The glucose goes first and foremost to "sugar hungry" locations- for example the brain, or any malignancy that might be present in the body. The scanner then just scans for the location of concentrations of radioactivity and forms the image of the organs in this way. All pet scanners are not created equal- look for the best and probably the newest one in your area- some have more "rings"- and produce better, clearer images.Hope this helps a little. A CAT or CT scan shows images, while a PET scan shows actual function processes. |
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Positron emission tomography (PET) is a highly specialized imaging technique using short-lived radiolabeled substances to produce powerful images of the body's biological function. PET is e... Important fact for those about to have a PET scan. The dye used to visualize your anatomy binds to glucose in the body. So you should be very certain to avoid eating anything the night before your... Its called CT. Scan... They have private centers all over. You can search over net. it depends on the city you are living... ...Kilo Crypt-equivalent-operations Per Second ...A radiologist has to read it. Never try to interpret your own studies, even the techs that do the tests are wrong sometimes. Or are you saying that he report states that there is positive lymphovas... My dad had throat cancer and reconstructive surgery. His first PET scan was 6 months after surgery, then another 6 months later. Now he does not need to go again for 12 months. ...It is very short. Don't worry about it. It is not a danger to anyone else. ...CAT scans don't show everything. ( my gma has cancer) Her CAT scan only showed one tumor, but the pet scan found 7. So, obviously pet scans show alot more than cat scans do. also the docto... |
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