Computed
Tomography
- An
Overview
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Overview - Computed Tomography - Lecture Slides, Slides of Computed Tomography
Computed Tomography is an imaging method which uses in X-Rays. This course is part of Radiology courses. This course is basic and important course for Medical students. This lecture includes: Overview, Conventional Tomography, Conventional Tomography Blurring, Intensity of a Pencil Beam, Ct Image, Image Reconstruction, Numbers,Gray Shades, Ct History, Ct Computers, Obsolete Terminology
Typology: Slides
2012/2013
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Computed
Tomography
- An
Overview
Early History
“tomos”
Greek word meaning section
Sectional imaging methods first developed in
1920’s
Conventional vs Axial
Tomography
Conventional Cut
CT Axial Cut
Conventional Tomography Blurring
Image produced on film
Objects above or below
fulcrum plane change position
on film & thus blur
How Did We Go From…
The story concerns these men.
What was their Link?
Paul, Ringo, George, & John
Geoff
A lot of the money was going here
Follow the Money
CT Image
Measure a bunch of pencil beam intensities
CT Image
Now make measurements from every angle
Image Reconstruction
Acme
Mini-
Computer
Projection
(raw)
Data
Pixel
(calculated)
Data
X-Ray Source
Radiation Detector