Radiology Student Chat Zone :: Question for Papa
Author: newstudent
Posted: Tue Dec 23, 2008 11:24 am (GMT -4)
Topic Replies: 8
Hello!, I must have just missed you, as seen you've just replied.
Yes, I think maybe I am getting a little confused.
Prior to starting my program, I was in sales lol
I wish somewhere there was a video that showed a 3d video simulatation of x-rays passing through matter, and showing the respective formation of the image. Someone should do this, as it's important for students to understand this fully, and I don't think it's covered enough from the outset of the program which is a shame.
I think some of my mis-understanding has come from the word 'penetration' Penetration can, afterall, mean to pass into (into the bone/tissue) or to pass through (through the bone/tissue to hit the plate). When I've been speaking of penetration, I've been using the word as if to mean that the rays have gone through the matter as opposed to being passed into it.
Does radiographic penetration refer to passing into body matter, or all the way through body matter?
So I can understand this, is it right in suggesting that for the most part:
a) bone and tissue block radiation (through varying degrees of absorbtion), but may actually allow some rays to pass right through them and hit the plate on the other end?
or
b) bone and tissue never normally let x-rays to actually go right through them, hitting the plate on the other end?
I'm presuming b would be correct due to total blockage, whicn in turn produces the varying degrees of 'blockage shadows@ on the film when processed.
Posted: Tue Dec 23, 2008 11:24 am (GMT -4)
Topic Replies: 8
Hello!, I must have just missed you, as seen you've just replied.
Yes, I think maybe I am getting a little confused.
Prior to starting my program, I was in sales lol
I wish somewhere there was a video that showed a 3d video simulatation of x-rays passing through matter, and showing the respective formation of the image. Someone should do this, as it's important for students to understand this fully, and I don't think it's covered enough from the outset of the program which is a shame.
I think some of my mis-understanding has come from the word 'penetration' Penetration can, afterall, mean to pass into (into the bone/tissue) or to pass through (through the bone/tissue to hit the plate). When I've been speaking of penetration, I've been using the word as if to mean that the rays have gone through the matter as opposed to being passed into it.
Does radiographic penetration refer to passing into body matter, or all the way through body matter?
So I can understand this, is it right in suggesting that for the most part:
a) bone and tissue block radiation (through varying degrees of absorbtion), but may actually allow some rays to pass right through them and hit the plate on the other end?
or
b) bone and tissue never normally let x-rays to actually go right through them, hitting the plate on the other end?
I'm presuming b would be correct due to total blockage, whicn in turn produces the varying degrees of 'blockage shadows@ on the film when processed.
papa RT(R)(CT)