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November 01, 2025, 02:46:29 pm
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Author Topic: CT scan  (Read 1581 times)  Share 

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Boots

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CT scan
« on: May 24, 2010, 06:20:47 pm »
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I'm having difficulty finding Limitations to this process.
I know that during a CT scan the subject is exposed to RADIATION and given an injection of a CONTRAST, however medical experts believe this to be non-invasive. But can I still list this as a limitation cos' it does have a RISK of it being harmful.
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littlebecc

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Re: CT scan
« Reply #1 on: May 24, 2010, 06:25:29 pm »
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Limitation:
Shows only brain structure or anatomy
- it does not provide info about activity of the brain ie brain function

That's all i have on limitations for it i'm pretty sure...
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akira88

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Re: CT scan
« Reply #2 on: May 24, 2010, 08:48:39 pm »
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Limitations:
-does not show function of the brain
-needs highly trained staff to operate
-x-rays are used, therefore exposure is limited
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minilunchbox

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Re: CT scan
« Reply #3 on: May 24, 2010, 08:55:58 pm »
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Quality of images aren't as detailed as MRI.
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ChairmanMao

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Re: CT scan
« Reply #4 on: May 25, 2010, 08:29:23 pm »
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-Quality of images aren't as detailed as MRI
- Only shows the anatomy(structure) of the brain, not function
- Requires injection of substance (seen as a limitation versus MRI)
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littlebecc

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Re: CT scan
« Reply #5 on: May 26, 2010, 09:00:55 am »
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there's no injections in a CT scan...
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Glockmeister

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Re: CT scan
« Reply #6 on: May 26, 2010, 11:04:26 am »
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Quote from: littlebecc on May 26, 2010, 09:00:55 am
there's no injections in a CT scan...

That's correct, you must be thinking PET scans, Chairman Mao.

Akira more or less nailed it on the head.
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ChairmanMao

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Re: CT scan
« Reply #7 on: May 26, 2010, 06:32:05 pm »
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Quote from: Glockmeister on May 26, 2010, 11:04:26 am
Quote from: littlebecc on May 26, 2010, 09:00:55 am
there's no injections in a CT scan...

That's correct, you must be thinking PET scans, Chairman Mao.

Akira more or less nailed it on the head.

Incorrect, littlebecc.

"CT is a medical procedure that can only be performed by a specialist doctor called a radiologist. The research participant (or patient) must first be given an injection of a substance into the vein of their arm or hand. The substance that is injected is commonly called contrast and is based on iodine. This is used to highlight the brain's blood veslels and greatly assists the radiologist and researcher in interpreting the CT images." - (Grivas, 2004)
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littlebecc

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Re: CT scan
« Reply #8 on: May 26, 2010, 06:38:04 pm »
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Well according to VCAA....
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vexx

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Re: CT scan
« Reply #9 on: May 26, 2010, 07:43:52 pm »
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nahh it's true CT scans have an iodine contrast injection, we had to know this last year.
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littlebecc

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Re: CT scan
« Reply #10 on: May 26, 2010, 08:52:38 pm »
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Hmmm...then how come it's not considered invasive?
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Nullisecundus

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Re: CT scan
« Reply #11 on: May 30, 2010, 01:09:08 pm »
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in some texts it says its not considered invasive

howwever i'd say its 'mildly' invasive, as the iodine based contrast is not radioactive nor harmful
but it still requires you injecting a substance INTO you..

so to be on the safe side i wouldnt say that it isnt invasive :)
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Visionz

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Re: CT scan
« Reply #12 on: May 30, 2010, 01:51:00 pm »
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The safe side would be "some consider it invasive"
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