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Old 01-30-2014, 11:35 PM
 
1 posts, read 1,189 times
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I recently had a Chest CT Scan done both with and without Contrast and I'm trying to figure out the amount of radiation I was exposed to. The scans were done using a GE Lightspeed scanner. I have a CD of the images, and the last image on the CD is a "dose report" which shows the scan range, CTDI, DLP, and Phantom cm amounts. I have a few questions:

1) The report only lists "Series 1 (scout)," "Series 2," and "Series 4," even though based on the images, I had Series, 1, Series 2, Series 3, Series 4, and Series 5 done. Is there a reason why "Series 3" and "Series 5" were not included on the dose report? Does this mean that the amount of radiation exposure for Series 3 and 5 were left out of the dose report, or are they somehow incorporated into the Series 2 and 4 numbers?

2) I noticed the timestamp on the Dose Report is the same as the timestamp on the Series 1 images, but earlier than the timestamps on the Series 2 through 5 images. Does this mean that the Dose Report was produced prior to all of the CT scan images actually being completed? If that's the case, how accurate is the Dose Report?

Thanks in advance for any information you may be able to provide!
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Old 01-31-2014, 08:49 AM
 
1,661 posts, read 1,872,149 times
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It will all be a moot point when you have an arm growing out of your chest 10 years from now

Edit: On a serious note, have you tried asking the place where you got the scan done? They might be able to look you up and just tell you how much radiation you've been exposed to.
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Old 01-31-2014, 11:09 PM
 
Location: in a house
3,574 posts, read 12,841,699 times
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Frankly, I'd be more concerned about the reason behind the chest CT rather than the dose of radiation you received getting it.
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Old 01-31-2014, 11:21 PM
 
Location: earth?
7,288 posts, read 10,369,507 times
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You're smart to think about this. Most people just blindly get these uber doses and don't even think of the side effects. I am not sure why you want to know or what you think you are going to do about it now - but it is an important question - next time ask it before the procedure (and you will get answers that will minimize it so you would have to do your own research on the dose exposure).
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Old 02-05-2014, 04:21 PM
 
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My Doc wanted me to get a cat scan for my lower back...he was kinda pissed when I told him I'd pass on the equivalent of 350 chest xrays worth of radiation (that's conservative), and that I wanted an MRI instead.(no radiation)
Medical imagery testing could have a lot to do with the "epidemic`of cancers we are experiencing.
I`d be concerned (if I were you)..it's too late now cause you've already had the scan, but you might want to research before you have any more.
http://well.blogs.nytimes.com/2012/0...en-overlooked/

What's really sad is that doctors are now wanting patients to have a virtual colonoscopy (cat scan) instead of a regular colonoscopy that uses no radiation. I was also offered one of those and refused...instead I went for the gold standard..a regular colonoscopy.

Last edited by purehuman; 02-05-2014 at 04:43 PM..
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Old 02-06-2014, 10:34 PM
 
4,626 posts, read 10,500,588 times
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Quote:
Originally Posted by purehuman View Post
My Doc wanted me to get a cat scan for my lower back...he was kinda pissed when I told him I'd pass on the equivalent of 350 chest xrays worth of radiation (that's conservative), and that I wanted an MRI instead.(no radiation)
Medical imagery testing could have a lot to do with the "epidemic`of cancers we are experiencing.
I`d be concerned (if I were you)..it's too late now cause you've already had the scan, but you might want to research before you have any more.
http://well.blogs.nytimes.com/2012/0...en-overlooked/

What's really sad is that doctors are now wanting patients to have a virtual colonoscopy (cat scan) instead of a regular colonoscopy that uses no radiation. I was also offered one of those and refused...instead I went for the gold standard..a regular colonoscopy.
350 chest x-rays=1 chest CT is conservative???? Your "doc" wasn't "pissed" he was just thinking "what an idiot"

Not even close on the comparison....try 50-70 chest x-rays = 1 chest CT

MRI does not equal CT scan, they are not interchangeable and there are different indications for each test. Some structures of the body are better visualized with CT others with MRI....
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Old 02-07-2014, 02:26 PM
 
12,429 posts, read 14,559,489 times
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Quote:
Originally Posted by bluedevilz View Post
Your "doc" wasn't "pissed" he was just thinking "what an idiot"

.
Got any more names you can call me?
You've used that one before...it gets kinda booooooooooring after awhile.

https://rpop.iaea.org/RPOP/RPoP/Cont...aphy/#CT-FAQ03

"A cat scan with a dose of say 10 mSv is equivalent to 500 chest xrays which average .02 mSv each.

Last edited by purehuman; 02-07-2014 at 02:36 PM..
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