what is pet scan???????
Answers
Answer:
PET – CT Scan can be defined as a combination of a CT scan and a PET scan. It gives detailed information about your cancer.The CT scan takes a series of x-rays from all around your body.The PET scan uses a mildly radioactive drug to show up areas of your body where cells are more active than normal. You usually have a PET-CT scan in the radiology department as an outpatient. A PET CT Scan usually takes between 30 and 60 minutes.
When will you be advised to get a PET CT Scan?
PET-CT scans are for many types of cancer. They are generally thought to be more accurate in diagnosing cancer than PET scans alone. PET-CT scans can help:
Diagnose cancer
Stage I cancer, so doctors know whether it has spread
Decide whether you can have surgery to remove your cancer
Decide which is the best treatment for your cancer
Find the place in the body where you cancer first started to grow (primary cancer)
Check whether your cancer has come back
A PET-CT scan can also show how well a cancer treatment is working. After you have had treatment for cancer, a scan may show an area that looks like there might still be some cancer left. This might not be cancer but scar tissue left over from cancer killed off by your treatment. A PET-CT scan can sometimes show whether this tissue is active cancer or not.
Cost of a PET CT Scan:
The cost of a PET CT Scan is high in India and ranges from Rs 20,500 to Rs 35,750. However, Paras Cancer Centre is providing the same at Rs 14000/-. Paras Cancer Centre is the first hospital in Bihar to provide comprehensive cancer treatment and is the only hospital to have high-end PET CT technology. The hospital is supported by a team of reputed cancer specialists and nuclear medicine experts.
A positron emission tomography (PET) scan is a type of imaging test that helps doctors see how the organs and tissues inside your body are actually working. In a PET scan, a very small dose of a radioactive chemical, called a radiotracer, is injected into the vein of your arm.
PET Scan | Cleveland Clinic.
Explanation:
CT stands for Computer Topography, using X- rays, a computer construct images about the information received, which is read by a specialist, allowing to see inside the body. With a CT scan, organs, bones and tissues can be seeing. This process doesn't hurt and it doesn't take too long, which is perfect because that way the patient won't be exposed too mucho to this electromagnetic rays, which carry radiation.
On the other hand, PET stands for Positron Emission Tomography, a radioactive tracer is used with a special dye, which allow doctors to see zones that react to it, meaning that is a damaged zone, this method gives the possibility to diagnose diseases which cannot be seen externally. As you can see, a PET scan involves the use of radioactive substances which are inhaled or injected in the patient, in the part of the body that needs to be examined. The PET scan is able to measure blood flows, sugar and oxygen uses, tissues and more.
Therefore, CT and PET scan are way different, one is more powerful than the other, but both are used in medicine to diagnose and examine parts of the body. A crucial difference is that PET scans need a radioactive tracer to examine, and CT scans don't, but PET are stronger, can allow to diagnose invisible diseases, which can be only seen inside.
Hope it helps !