You all would have heard about CT Scan or MRI. Just like the CT Scan, the PET CT Scan also is used for diagnosing problems in the body. But PET CT Scan is different than the CT Scan. The purpose of using both of these is also different. Often the doctor recommends a PET Scan in case of diseases like Cancer. Here, we will share with you all the details about the PET Scan. And we will also let you know about the differences in between PET Scan and CT Scan.
What is PET Scan?
PET Scan is known as Positron Emission Tomography or in other words, it is also being named as PET Imaging. PET Scan uses the radioactive tracers to get the images from your body. It uses nuclear medicine technology for diagnosing the cells and tissues in your body. The radioactive tracers used in PET Scan can be either injected in your body, or inhaled, or can be swallowed, so that your body can absorb it. And the doctors can get a detailed image and view of your cells and tissues. Below, we are sharing in detail about how PET Scan works and why it is being used.
Purpose behind PET Scan
The PET Scan test is not any normal test, as it is basically used for diagnosing chronic diseases. Although, PET Scan test has many uses. But in general, it is recommended by the doctor only when he observes or suspects some serious health issue. It is used for monitoring purpose also during the treatment of different critical diseases. Also, in case of any damage in the body, like heart failure or other such things, PET Scan test is being used. All these get diagnosed at PET CT Hyderabad centres.
Diseases diagnosed by PET Scan
PET Scan test is not dedicated to any particulardisease. From cancer to heart attack, Alzheimer’s diseases or epilepsy, it is used for diagnosing many diseases. In the case of Cancer, it can be used in different ways like for knowing whether the cancerous cells are spreading. Or for checking how critical the cancer is or is the treatment of cancer working fine or not. PET scans are also being used for heart problems detection. It helps in monitoring the heart’s condition after the bypass surgery. With the help of PET Scan Tests, doctors can also detect the harm after the stroke or heart attack. Other than the heart, PET Scan tests are also used for diagnosing the problems and diseases related to the brain. The central nervous system disorders can also be detected with the help of PET Scan. Like the Epilepsy, Parkinson’s disease, Alzheimer’s disease, Depression, etc.
Risks involved in PET Scan
The radioactive tracers are administered for doing PET Scan Test. But these radiations are not that harmful. There are very low risks involved with these radioactive tracers. The traces of this radioactive tracer get flushed out from the body, as they are given along with the glucose. But there are certain health-related conditions when the risk is involved. They are:
- You can get an allergic reaction because of the radioactive tracers if you are allergic to aspartame or iodine.
- Any past allergic reaction because of the PET Scan.
- If you are suffering from Asthma, Allergies, Dehydration, Kidney related problem, heart-related problem.
- If you are pregnant, it is not safe for you to undergo this test. As it may affect the fetus.
- If you are breastfeeding, then also it is not safe for the infant. So, ask your doctor before getting the test done.
Before PET Scan Test
The doctor will guide you about the tests, before conducting it. The radioactive tracers will be administered in your body by intravenous injection. After that, you will have to wait for a few hours, so that the chemical reach to all parts of your body. You can check with your doctor if they recommend you avoid eating any medicines which you take. So, it will be better if you share all your medical details with the doctor before only. Also, in case if you are pregnant or you are breastfeeding, do let your doctor know.
During PET Scan Test
The PET Scan test duration is of around 2 hours. The attendant will provide the hospital gown and will ask to remove all the jewelry or metal items before going to the test room. In the scan room, there will be a scanning table, where you will have to lie during the test. Also, two large parallel gamma cameras will be there for scanning during the test. The doctors or technologist in the room will help you in taking the position on the PET Scan table for the test. One should remain still while the test is going on. The scan will be done from your head to foot. During the test, if you feel uncomfortable or anxious, you can share the same with the technologist.
After PET Scan Test
The doctors and the technologist may ask you to wait. So, that they can review the images and can be assured that they do not any more images for the observation. Once the test is over, drink around 4 to 5 glasses of water. If after going back home, you experience any problem or side effects like vomiting, chest pain, fever, irregular heartbeat, etc., then call the doctor immediately. In the case of women who are feeding the infants, they should wait for around 24 hours and then only they can feed again.
Centres for PET Scan
In all over India, there are many PET Scan Centres. But if you live in the south, then we suggest you get your PET CT Scan done in Hyderabad city. As you will get the best PET CT Scan Centre in Hyderabad in the south. The treatment and the PET Scan tests were done in Hyderabad are not that costly. Along with the PET CT Scan tests, these centres do provide other medical facilities also with the best doctors.