Top
10
Doctor insights on: How Does Metal Affect The Results Of A Pet Scan

Share
1

1
How does metal affect the results of a pet scan?

How does metal affect the results of a pet scan?

Usually not much: Metal can block the gamma rays that are emitted by the patient, and block the xrays from the ct portion of the pet/ct, which can create errors on one portion of the exam (called the attenuation corrected scan). However, the original pet data from the scan (uncorrected) is always available for review, so if the standard images have artifact on them, the uncorrected images can be reviewed. ...Read more

See 2 more doctor answers
Dr. Guido Davidzon
286 doctors shared insights

Pet Scan (Definition)

Pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region. The areas using more glucose are hyper metabolic and generally more worrisome. Our brains and sometimes hearts prefer glucose as food, making ...Read more


2

2
Could you tell me what this print out of a pet scan results means ?

Could you tell me what this print out of a pet scan results means ?

Discuss with doctor.: It is best to discuss your pet scan results with your physician so that you can be sure that you have a detailed and correct understanding of the scenario. If you have any specific questions, be sure to have them clarified. Without the results, it is difficult to answer your question. Hope this helps. ...Read more

4

4
How do pet scans work? My wife is scheduled for a pet scan and i was wondering how it works. Is this a good test relative to the other kinds of tests you can do? Is it accurate? Do you know how long it usually takes to get the results back?

How do pet scans work? My wife is scheduled for a pet scan and i was wondering how it works.  Is this a good test relative to the other kinds of tests you can do? Is it accurate? Do you know how long it usually takes to get the results back?

Positrons -Really!!: A pet/ct looks at the function of the body. Radioactive drugs (usually a glucose analog) distribute based on differences in function, release a positron (antimatter), which is destroyed by combining with an electron, making an x-ray we detect. Follow the directions the imaging center gives exactly, because patient prep is critical to getting the best test. Pet/cts are usually read the same day. ...Read more

See 2 more doctor answers
5

5
Pet scan results were fine so why do they want me to have a bronchial scope done ?Wouldn't the scan have shown any spread to the lymph nodes already ?

Pet scan results were fine so why do they want me to have a bronchial scope done ?Wouldn't the scan have shown any spread to the lymph nodes already ?

Not necessarily : Pet scans can prevent lymph node biopsies when they are positive, but when staging disease a negative "scan" does not exclude metastasis ( particularly if lung cancer metastasis is the question). ...Read more

See 3 more doctor answers
6

6
What will happen to my pet scan result if i cannot keep myself warm before the exam?

What will happen to my pet scan result if i cannot keep myself warm before the exam?

Don't worry: Tell the pet scan attendants how cold you are and they will provide you with blankets. Most radiology centers try to make the exam experience as pleasant as possible. ...Read more

See 2 more doctor answers
7

7
Which is better, pet scan or cisternogram? Father already had a cisternogram results borderline positive. Should pet scan be done or repeat cisterno

Different tests: Cisternography is used to determine if there is normal pressure hydrocephalus. It looks at the flow of CSF fluid. Pet scans are for looking at the brain cells and associated pathology. ...Read more

See 2 more doctor answers
8

8
PET scan to investigate a Right Hilar enlarged lymph node1.4cmX.9cm Results: residual thymic tissue mild activity SUV 1.5. This normal? I reCT in 4mo

PET scan to investigate a Right Hilar enlarged lymph node1.4cmX.9cm Results: residual thymic tissue mild activity SUV 1.5. This normal? I reCT in 4mo

Possibly: SUV of 1.5 is normal to maybe reactive. This makes it very unlikely to be worrisome. The follow up CT should be improved or no change ...Read more

9

9
Stress test on 7-10-2015. I went today for the results. They said the scans were normal and no blockages. The DR wants me to do PET scan now because even though the results were normal my BP was 150/100 right before and 120/80 after. Is that normal?

 Stress test on 7-10-2015. I went today for the results. They said the scans were normal and no blockages. The DR wants me to do PET scan now because even though the results were normal my BP was 150/100 right before and 120/80 after. Is that normal?

Talk w/ your doctor: A PET scan of the heart is a non-invasive imaging test that uses radioactive tracers to produce pictures of your heart. These images can help Dx heart disease or clarify areas of concern that may not have been completely seen on your EKG stress test. Talk with your doctor. Express your question with the desire to know why the test was ordered and how the result will affect mgmt of your health. ...Read more

See 1 more doctor answer
10

10
Oncology: How long after a Whipple operation can a patient still have a slightly annoying pain as a result of inflammation as seen on a PET scan?

Oncology: How long after a Whipple operation can a patient still have a slightly annoying pain as a result of inflammation as seen on a PET scan?

Weeks: Since the Whipple requires several anastomosis, there is the potential for slight and temporary leaks. These areas should be drained at the time of surgery and include suturing the common duct to small bowel, and implanting the transected body of pancreas into jejunum. These sites are well known to cause, even with good drainage, temporary leakage setting up inflammation seen on scan. ...Read more