Talk:X-ray computed tomography
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Garage built scanner.
This guy built a CT scanner in his garage, scanned a frozen chicken. http://hackaday.com/2013/01/09/ben-krasnow-builds-a-ct-scanner/ Bizzybody (talk) 12:05, 9 January 2013 (UTC)
- Interesting, but I doubt that the website linked would pass WP:RS, and even if it did, I don't think it would really merit mention in the article. And I hope the guy knew what he was doing - messing around with X-rays isn't advisable... AndyTheGrump (talk) 12:14, 9 January 2013 (UTC)
Blausen Medical has donated two images of CT scans showing general configuration of how the patient enters the machine, shown below. This article already has a lot of images, but feel free to use if useful. Dcoetzee 01:08, 10 August 2013 (UTC)
Why are they no longer called CAT scans?
- My understanding is that the reason the word "axial" was built into the early term "computed axial tomography (CAT)" is that, at the time, tomographic slices could be taken only in the axial plane (transverse plane), owing to the limitations of how the machines were built. Once the technology was developed further, newer machines could produce images in any desired plane, so the rational term to use was simply computed tomography (CT). One would think that everyone should have realized from the start that this technology would probably evolve to capture more than just one plane, and that maybe CT (not CAT) would be the logical choice of name from the start. But of course nomenclatural choices are often not made with that much foresight or planning. Quercus solaris (talk) 14:35, 19 December 2013 (UTC)
Background radiation and imaging quality?
Is there any known effect from background radiation on x-ray imaging? I don't see any mention of this in the article. I would assume that this may be an issue for extremely high sensitivity detector systems.
Rooms with x-ray machines are commonly shielded to prevent outward radiation leakage from the x-ray source. But for low-noise imaging it appears that room shielding may be just as important, to minimize background noise affecting the detectors, and thereby allowing reduced x-ray intensity during scanning.
Unable to edit and remove text from article....
On my PC and the most recent version of the page, February 29, at 00:23 EST, I am unable to remove a phrase occurring at the beginning of the page "Go to Apollo Hospital and do CT Scan, LOL! " It is shown on the article page, but does not appear in the edit page dialog box.
Fixed --Light show (talk) 05:49, 28 February 2014 (UTC)