Talk:Magnetic resonance imaging

From Citizendium
Revision as of 03:46, 29 July 2008 by imported>Howard C. Berkowitz (→‎The piece of the pictue that I miss: new section)
Jump to navigation Jump to search
This article is a stub and thus not approved.
 Main Article
 Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
To learn how to update the categories for this article, see here. To update categories, edit the metadata template.
 Definition:  The use of magnetic fields and electromagnetic radiation to visualize internal structures of non-magnetic objects non-destructively. [d] [e]
Checklist and Archives
 Workgroup category:  Health Sciences [Please add or review categories]
 Talk Archive:  none  English language variant:  American English

neuroimaging

I added this red link (as an uncreated article - is it the best term?) - I won't be creating it though. If anyone else wants to... --Matt Lewis 00:44, 31 March 2008 (CDT)

The piece of the pictue that I miss

Your section on how various weightings and gradients return information of different brighness or color is very helpful. What still puzzles me about MRI, vs. CT ad SPECT, is that in the latter, there is a narrow collimated beam that is "spread" over a limited angular range--i.e., tomography. I have at least a conceptual grasp of how the image is built from the set of tomographic images.

As far as I know, magnetic and RF fields cannot be collimated to anywhere close to the precision of collimated ionizing ratioactive. The thing I don't yet grasp in MRI is how the image is formed form the individual images. Can you help define that, preferably comparing it with SPECT and CT? Howard C. Berkowitz 03:46, 29 July 2008 (CDT)

Retrieved from "https://citizendium.org/wiki/index.php?title=Talk:Magnetic_resonance_imaging&oldid=416079"