How and when should PET Scans be used? What do they show?
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- čas přidán 26. 05. 2020
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![What is the Standard Uptake Value (SUV) in PET and SPECT Imaging? [L38]](/img/n.gif)
The short half life doesn't make the radioactive isotope not dangerous. The low dose makes the radioactive isotope not dangerous. All else being equal, a substance with a shorter half life is more radioactive and therefore more dangerous. For example, iodine-131 has a half-life of 8 days and is used to deliberately damage the thyroid gland via radiation burns, whereas bismuth-209 has a half-life of 20 quintillion years and is used to kill bacteria by the oligodynamic effect with no need to worry about radiation.
Very nicely explained dear
If the person undergoing PET SCAN, coughs or moves during the procedure then do we have to repeat the procedure...?
What radioisotope do you recommend for chronic low level infection like hepatitis c or HIV? zirconium? Gallium 67?
Why are PetScans recommended before/AFTER RADIATION TREATMENTS within 3-4 months after?
I'm a public patient in Australia. I had a PET scan once they diagnosed my oesophageal cancer to see if it had spread to other organs but both my radiotherapy and chemotherapy oncologists said there is little value in redoing PET scans again, they can gauge what is going on by completing a CT scan of my chest and pelvic region. I also have routine bloods as I am undergoing immunotherapy. If I had private insurance I guess I could demand a PET scan.
I’m being advised to give my 3 year old daughter a PET scan , it’s for genetic information rather than anything to do with cancer.
She has a rare genetic mutation and I’m extremely concerned about giving her radiation.
I read that it’s basically the equivalent of 3 years worth of atmospheric radiation, which would mean that at age 3 she would be given her entire lifetime so far worth of radiation.
Please help allay my fears, I would do this if her life was at risk but it’s not.
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What does no FDG avidity on a pet/ct scan mean?
Which detector is least to be used in pet imaging
Can PET scans be used to help diagnose other diseases like some Autoimmune diseases? I've had numerous medical problems for decades, with a lot of abnormal blood, urine, x-ray, ect. tests but never have been given a definite DX.
The more ionizing radiation you let them exspose you to the worse your health will get. Permanent cell death and dna damage each ct and xray that is done. They are radiating the hell out of people with all this so called preventative and safe diagnostic imaging. Not worth it unless you are in the ER and affected and in a life and death situation
@@micah7685 ! thank you so much! I keep putting off getting mammograms. I've had about 10 of them and quite a few chest x-rays....why keep pumping myself with dangerous stuff. They also want me to get another colonoscopy, I've had 3, and they were all fine. I'm so done with all that. Yep, preventative care has gone crazy!
@@bonniemoerdyk9809 one ct scan destroyed my healthy gi function and endocrine system. They don't even warn you about the risks up front
Did you need to have a biopsy before you had a PPET scan
I am 52 year old from India
These are being ordered and reckomeded left and right and mostly in unnecessary situations. They are not worth the damage they do to your body
When are they necessary?
Both my radiotherapy and chemotherapy oncologists said that there is little value in doing follow up PET scans after surgery or chemo/radiotherapy; a CT scan gives them enough information as well as routine bloods. By the way I don't have private health care in Australia, if I did my guess is I could demand it.