A PET (Positron Emission Tomography) scan is an imaging test that allows your doctor
to check for diseases in your body. The scan uses special dye that has radioactive tracers.
A PET-CT scan combines a CT scan and a PET scan. Doctors combine these tests because a CT scan and PET scan show different things. A CT scan shows detailed pictures of tissues and organs inside the body.A PET scan shows abnormal activity. So, the 2 scans together provide more information about the cancer. You usually have a PET-CT scan in the radiology department as an outpatient. Visit BookMyScans and book your whole body PET-CT Scan in India at 60% discount on market price.
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2. Short description…
❖ A PET (Positron Emission Tomography) scan is an imaging test that allows your doctor to check
for diseases in your body. The scan uses special dye that has radioactive tracers.
❖ These tracers are either swallowed, inhaled, or injected into a vein in your arm depending on what
part of the body is being examined.
❖ our organs and tissues then absorb the tracer. The tracers help your doctor to see how well your
organs and tissues are working.
❖ The PET scan can measure blood flow, oxygen use, how your body uses sugar, and much more.
❖ PET scan are most commonly used to detect :- CANCER, HEART PROBLEMS, BRAIN
DISORDERS including CNS <Central Nervous System>.
First…What is PET SCAN ??!!
3. What PET Scanner Detects?!
PET SCANNER CAN :
✓ Measure vital functions such as blood flow, oxygen use, and glucose
(blood sugar) metabolism to help doctors identify organs and tissues
that are not working properly.
✓ Detect tumor cells for initial cancer staging (classification)
✓ Evaluate how well a patient's treatment plan is working, allowing the
care to be adjusted, if necessary.
4. How is a PET scan different from a CT or MRI scan?
❖ One of the main differences between PET scans and imaging tests like a CT
& MRI is that the PET scan reveals metabolic changes in an organ or tissue
earlier at the cellular level.
❖ This is important and unique because diseases often begin with functional
changes in the cells.
❖ A PET scan can often detect these very early changes, whereas a CT or MRI
detect changes a little later.
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5. PET-CT SCAN??!!
➢ A PET-CT scan combines 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 radiographer operates the scanner. It usually takes between 30 and
60 minutes.
6. Why you might have it??!!
** 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 to:
• Diagnose cancer
• stage a cancer, so doctors know whether it has spread, decide whether
you can have surgery to remove your cancer
• find the place in the body where you cancer first started to grow
(primary cancer)
• 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 the cancer killed off by your treatment.
7. How does a PET-CT scan work?
✓ A PET scan creates pictures of organs and tissues in the body.
✓ First, a technician gives you an injection of a small amount of a
radioactive substance.
✓ Your organs and tissues pick up this substance
✓ Cancer cells pick up a lot, because they tend to use more energy than
healthy cells.
✓ Then a scan shows where the radioactive substance is in your body
8. Getting ready for a PET-CT scan…
WhenyouscheduleaPET-CTscan:-
❑ you might need to drink only clear liquids after midnight the night before the scan.
❑ You might need to stop eating and drinking at least 4 hours before the scan
❑ Tell your doctor or nurse about all the medications you take
❑ Mention any allergies and other medical conditions
❑ If you are breastfeeding or might be pregnant, tell your doctor (A PET scan could
be dangerous for the baby).
❑ You need to stay still and holding breathe at times during scan.
❑ If your PET-CT is for radiation treatment planning, you might wear a mask or cast
during the scan
9. Having the PET-CT scan…
➢ The couch slowly slides backwards and forwards through the scanner.
➢ The machine takes pictures as you move through it.
➢ The scan is painless but can be uncomfortable because you have to
stay still.
➢ Tell your radiographer if you’re getting stiff and need to move
➢ It’s not particularly noisy but you’ll hear a constant background
noise.
➢ When it’s over, your radiographer will come back into the room and
lower the couch so you can get up.
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10. After having scan :-
▪ Your radiographer removes the tube from your arm before you go home
▪ You can then eat and drink normally. Someone will need to take you home
if you’ve had medicine to help you relax
▪ The radiotracer gives off very small levels of radiation that go away very
quickly
▪ But for the rest of the day you shouldn’t have close contact with pregnant
women, babies or young children
11. Possible risks??!!
APET-CTscan isasafetest formost people.Butlike all medicaltestsit has somerisks…….
✓ Your doctor and radiographer make sure the benefits of having the test
outweigh these risks
✓ Pregnant women should only have the scan in an emergency. There’s a risk
that the radiation could harm the baby.
✓ If you are breastfeeding, let the department know a few days before your
appointment
✓ He will let you know if you need to stop breastfeeding for a length of time
after having the radioactive drug. The radiation in the radioactive tracer is
very small. Drinking plenty of fluids after your scan will help to flush the
drug out of your system.
12. How is a PET-CT scan different than a CT scan?
❖ Doctors combine these tests because a CT scan and PET scan show
different things.
❖ A CT scan shows detailed pictures of tissues and organs inside the
body.
❖ A PET scan shows abnormal activity. So, the 2 scans together provide
more information about the cancer.
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13. Questions to be asked to your doctor?
1. Who will do the PET-CT scan?
2. What will happen during the PET-CT scan?
3. How long will it take?
4. Is the imaging facility accredited to do PET-CT scans?
5. What can I eat or drink before the scan? What should I avoid?
6. When will I learn the test results? How will you tell me?
15. Get the CHEAPEST price & Schedule your scan
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