Radiology Forums

Bafa · Joined: 30 Jul 2008 Posts: 6

I have searched for this and I don't know what is different from regular multislice helical scanning. Can someone explain plaease?

I was going to post in CT forum, but this was the "ask a question" forum, so here it is. Razz

hjhogle · Moderator Joined: 23 May 2006 Posts: 609 Location: CT

From a seach on the Johns Hopkins Hospital website -

"Conventional CT (also called dynamic incremental scanning), is generated by directing an X-ray beam at several different angles and levels of the abdomen. Contrast dye, given to the patient orally and/or intravenously, helps to make the organs visible by appearing white on the X-ray films. A computer processes the X-ray information and produces the CT images, usually as 1/2-inch cross-sectional slices of the abdomen."

papa · Posted: Fri Aug 01, 2008 2:55 pm Post subject:

actually, (correct me if i'm wrong, dave ct guru) dynamic scanning refers to scanning one position over and over. if you think about a ct perfusion, what you're doing is imaging one slice over and over watching for contrast enhancement. this is very common in brain perfusions, where you're trying to determine the course of blood flow and to find out which portions of the brain are not recieving propper blood flow.

papa
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hjhogle · Moderator Joined: 23 May 2006 Posts: 609 Location: CT

Oh, COOL. Thanks, Papa. I knew if I opened my mouth, one of your gyys would be forced to respond to correct the confusion Wink

And I appreciate the answer - makes sense once you explained it.

hjh, RT

CTDave · Posted: Sat Aug 02, 2008 8:23 am Post subject: