Re: Finding cancer with 3D (not for the squeamish)

[P3D Gregory J. Wageman <gjw@xxxxxxxxxx>]

Michale Burke, M.D. wrote:

>The procedure involves doing a routine CT scan, then the software "stacks
>up"  the individual CT slices and allows the operator to change the point
>of view as desired, from outside the body to a point inside the body.  It
>is not viewed with LCD or other glasses.  It is not "3D"  but I really
>cant fault a reporter for using the phrase, as the motion effect on the
>fly through gives that impression.   

Interesting.  Which system(s) do you use?  I was a co-designer and
developer on the Cemax VIP 3D system.  (It is "3D" as in three-
dimensional, unlike a conventional radiograph which is a two-dimensional
projection, but it is not stereoscopic.)

Note that since the data is stored and processed as a 3-dimensional
volume, it is possible to generate stereo pairs with an appropriate
shift of the rendering viewpoint.  I've done this with a couple of
the more, uh, _interesting_ (read: gruesome) studies we had as test
data.

        -Greg W.


------------------------------