DOPA PET-CT in Mumbai



What is DOPA PET-CT?

DOPA PET scan is used specifically in the area of the brain to detect Parkinson’s disease and to visualise advanced  Neuroendocrine tumors (NETs).


Preparing for the scan:

  • When you schedule your DOPA PET-CT scan, you will receive detailed instructions on how to prepare. For example you may be told to fast (except plain drinking water) for at least 2-3 hours before your scan begins. 
  • Women should tell their doctors if there is any chance they may be pregnant. If in doubt, make sure to take a pregnancy test before performing the scan. If the pregnancy test is positive, PET-CT scan is generally not recommended.
  • If a woman is lactating it is absolutely necessary to pump and store your breast milk before a PET-CT scan. It is safe to breastfeed your child again after 24 hours.
  • It is recommended that you are accompanied by one relative to help you during the course of the scan.
  • Wear comfortable clothing and avoid  jewellery.
  • Avoid any intense and strenuous physical activity or exercise 24 hours before the scan. 
  • Diabetes medicine can be taken 24 hrs prior to procedure.


What to bring on the day of the scan:

  • Doctor’s prescription or note indicating the type of scan to be done.
  • Entire current medical file and prescription set to be aware of  any medical conditions and allergies, including details of treatment history.
  • All relevant previous CDs, reports and scan images (old reports and CD of PET-CT scan, CT scan of the brain, MRI)
  • Only one accompanying person is recommended.
  •  Home-cooked food for the patient to eat after the scan.


Time taken:

  • Total time: 3-4 hrs
  • Waiting time after injection: 1 hr
  • Scan duration: 15 mins


After the scan:

  • Patients can eat, drink and take medication
  • Patient is required to wait in the clinic for approximately half an hour after the scan, till the concerned staff confirms
  • It is best for the patient not to be close to children or pregnant women for the rest of the day to avoid exposing them to any radiation
  • The radiotracer leaves the patient’s body through urine or stool till 10-12 hours after the scan. Patient should drink a lot of water to help flush it out



A PET – CT scan uses a radioactive material (tracer) to produce 3D images of organs and areas within the body while they are working. The changes that take place are recorded in a sequential manner which is as follows 
  • After the registration formalities are completed, a Patient Care Co-ordinator will discuss the detailed patient history with you and you will have to share all the relevant treatment details, reports, and doctor’s prescription. You will be given a detailed explanation about the scan experience. At this point, you can get all your queries resolved.
  • Please bring along all your previous scans CDs as this is important for comparison.
  • Please do show your recent Serum Creatinine and recent Blood Sugar reports during the discussion on your health history. It is preferred to do both the tests on the same day to give an accurate diagnosis. If you don’t have these already, you can get them done at our pathology lab. The reports for the same will be available easily and promptly before the PET-CT scan begins. 
  • The staff nurse will then prepare you for your scan by giving you the clothes required for the scan and asking you to remove all sorts of jewellery on you. 
  • The nurse then places a cannula in your vein to prepare for the radiotracer injection. In case of performing the  serum creatinine and blood sugar tests, the nurse will take a sample for it from the same cannula. This helps in avoiding repeated needle pricks for the patients. Depending on the type of scan, she might also ask you to drink some medicated water. 
  • The radiotracer is pushed in the vein through the cannula. After the injection,you would be asked to relax and rest for an hour in a separate room at our centre. This will help the radiotracer to get absorbed in your body before you are taken for the scan.
  • Once you’re ready, you’ll be escorted into the scanning room. The Technologist will give you all the necessary instructions before the scan begins. Please do not worry, you are constantly being monitored.
  • A contrast dye may be injected during the scan, if the doctor needs further information to make his diagnosis. The contrast material used depends on the Serum Creatinine levels. The type of contrast material to be used will be decided by the technical team.
  • Medcare has a state of the art PET-CT scan machine which helps in getting the scan faster than it normally takes for it to be completed.Your scan here will take around only 15-20 minutes unless additional images are required.
  • The doctor checks the scan and gives instructions to the staff nurse to take you out of the room comfortably.
  • Sometimes, an additional delayed scan may be required. 
  • After receiving a good to go signal from the doctor you can change, eat something and have your medicines.


For appointment call 8869906990 or write at atleast 1 or 2 days prior to te required date of appointment
(We DO NOT consider taking in walk-in patients but do check in with our reception and our billing executives at our centre)


Important Note:

  • We may have to reschedule or cancel appointments at times because of reasons beyond our control – short-supply or no supply of the DOPA used for the scan from an external source, machine breakdowns, etc. 
  • As we have no control over this situation, Medcare Diagnostics would not be held liable for any harm or loss arising out of such cancellations