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Medical Forum / Diseases and Disorders / Cancer / December 2004With contrast or not
Which is better for finding cancer? Since I have had the PET, CAT scan, should I have a CT of the chest/ neck without contrast? Jill > Which is better for finding cancer? Since I have had the PET, CAT > scan, should I have a CT of the chest/ neck without contrast? > Jill Hi Jill, if one of the other tests you've had, had contrast, maybe you've had the best? (ask your doctor) Besides, I thought the CT on Wednesday is of your tummy?... Hugs J >> Which is better for finding cancer? Since I have had the PET, CAT >> scan, should I have a CT of the chest/ neck without contrast? [quoted text clipped - 5 lines] > Hugs > J J, I was told by someone: they certainly have the knowledge to find activity. A CT of the chest WITHOUT contrast may produce your answers. I'm surprised it hasn't been done on you. And they also sent this to me. --Unfortunately, most physicians (including nuclear medicine physicians > and radiologists) do not realize the severe interfence of iodine-based > contrast in radioiodine scanning and therapy. Although most assume that [quoted text clipped - 38 lines] > unsatisfactory for thyroid cancer, which requires unique knowledge and > clinical management techniques.--Dr. Ain thyca 10-99 I do have the CT Wed. But didn't know if I should ask about this. I trust my Doctors, but then you read something like this, it makes you think. I know the out come will be the same, surgery. Just want to make sure I have a clue. Hugs, Jill > >> Which is better for finding cancer? Since I have had the PET, CAT > >> scan, should I have a CT of the chest/ neck without contrast? [quoted text clipped - 64 lines] > Hugs, > Jill Well Jill What you posted seems to say that doctors order "contrast" tests for thyroid (cancer) patients and they should not. That makes sense to me. It seems to me that many non-thyroid cancer doctors don't know/understand thyroid cancers and may mess up either the scanning or the RAI process by ordering the wrong tests. Call the test place and ask if it's been ordered "with contrast". If it has, then you'll have to "duke it out with them" about changing it to non-contrast or the doctor who ordered the test. Fax or take them (doctors) the articles that you just posted. That is what I would do, if it were me (in this situation), Jill. Hugs J Jill -- if you absolutely know that you will not be having any kind of I131 scan or therapy for at least a year, or you absolutely know that I131 is no longer useful for you, the CT contrast may not matter in that respect. It's when you have the CT contrast & then need I131 that the CT contrast interferes. I don't think it causes any actual harm, though, just delay of any I131 stuff. The thyca group has a number of people with this experience; some of them were told they were "iodine resistant" -- but they 'd had CT contrast a few months earlier (& their doctor didn't think it mattered, said it had been long enough for it to clear, & didn't give them a pre-treatment iodine test). Again, you might also ask in the advanced thyca e-group about this. I've had a CT w/o contrast as a followup to an iffy I131 scan; also an MRI w/contrast (it's different stuff). No PET yet. Best wishes. bj >> >> Which is better for finding cancer? Since I have had the PET, CAT >> >> scan, should I have a CT of the chest/ neck without contrast? [quoted text clipped - 86 lines] > Hugs > J > Jill -- if you absolutely know that you will not be having any kind of > I131 [quoted text clipped - 15 lines] > Best wishes. > bj Thanks bj, That's where I came up with this info. I had thyrogen injections and then the whole body scan, then CT sono of neck, then guided needle biopsy, then the PET/CAT scan. Don't know that this makes a difference or not. Jill > Jill -- if you absolutely know that you will not be having any kind of I131 > scan or therapy for at least a year, or you absolutely know that I131 is no > longer useful for you, she still has active antibodies and feels she shouldn;t because she's had a TT, so they're trying to figure out where the thyroid tissue is. (for the other scans). The abdominal scan is to look for something different. J I was merely pointing out something that I wasn't sure she had mentioned before (in relation to her resistance/recurrance/whatever you want to call it), and an e-list of other people who may have been in similar circumstances or have hints, tips, sources, medical leads, etc. for her. Even the main (vs. the advanced) thyca list has people who have stubborn Tg, and have varying info & opinions on the subject, how they're dealing with it, etc. Sorry if I seem to have overstepped. bj >> Jill -- if you absolutely know that you will not be having any kind of >> I131 [quoted text clipped - 10 lines] > The abdominal scan is to look for something different. > J > I was merely pointing out something that I wasn't sure she had mentioned > before (in relation to her resistance/recurrance/whatever you want to call [quoted text clipped - 7 lines] > Sorry if I seem to have overstepped. > bj Overstepped? I was explaining and wondering if you knew if she'll need I131, since they can't find the tissue. Hugs J > >> Jill -- if you absolutely know that you will not be having any kind of > >> I131 [quoted text clipped - 10 lines] > > The abdominal scan is to look for something different. > > J > Well Jill > What you posted seems to say that doctors order "contrast" tests for [quoted text clipped - 15 lines] > Hugs > J J, I know that the PET/ CAT scan was with contrast. The I-131 is a radioactive pill/ assume it's a form of contast. The CT of the neck was without any contrast. I geuss it time to go to duke city. <g> I'll see if I can e-mail this to the Doc. If I can't, will take it up on Wed. Geuss we will see what happens. Hugs, J |
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