Timeline for What is Contrast in Medical Imaging
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Oct 31 at 17:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 1 at 14:49 | answer | added | Bryan Krause♦ | timeline score: 0 | |
| Oct 1 at 13:57 | comment | added | anongoodnurse | @rooni - Contrast means what you said, but I meant even more basic. You can read because dark contrasts with light, say, black and white. As the print color approaches the background color, the ability to distinguish the letters becomes more difficult; a very light gray on white, or a very dark grey on black ismuch more difficult to read than words written with high contrast. Contrast helps. Xrays are images composed of black, white, and everything in between. Why is that? Why do bones contrast with air or blood on an xray? | |
| Oct 1 at 13:37 | comment | added | anongoodnurse | @KateGregory - As is often the case, Wikipedia isn't very helpful in this case but for a different reason. If the OP doesn't understand "contrast" in its context, or in general, or on a simple XRay (where no contrast agent is given) the link isn't likely to clear anything up. Something more basic, e.g. how xrays work, followed by this would be more helpful, I think. But feel free to disagree (and to answer). | |
| Oct 1 at 6:40 | history | edited | rooni | CC BY-SA 4.0 |
added 415 characters in body
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| Sep 30 at 21:05 | comment | added | Kate Gregory | @rooni, can you read the first two paragraphs of en.wikipedia.org/wiki/Radiocontrast_agent and then adjust your question to be more specific about what you want to know? | |
| Sep 30 at 21:04 | comment | added | Kate Gregory | I think the medical meaning "a substance you inject into the patient to improve the contrast on the resulting images" is very different from its meaning in everyday speech. While the question could do with an edit, I think it's a valid question. | |
| Sep 30 at 18:52 | comment | added | Bryan Krause♦ | We require evidence of prior research in questions. That might be as simple as identifying a source (e.g.: using a link and a quote) that is describing "contrast" where you cannot identify the meaning from the context. | |
| Sep 30 at 16:36 | review | Close votes | |||
| Oct 15 at 3:07 | |||||
| Sep 30 at 16:29 | comment | added | anongoodnurse | Contrast is a very specific term/concept and means basically the same thing in medicine as it does in everyday speech. Did you do a search for "medical imaging purpose of contrast" or something similar? What did you find? Please show your research (a requirement on this site.) Thanks. | |
| S Sep 30 at 15:44 | review | First questions | |||
| Oct 14 at 15:51 | |||||
| S Sep 30 at 15:44 | history | asked | rooni | CC BY-SA 4.0 |