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CT Scan

Physics class presentation

Donghyeon Kim

on 22 May 2012

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Transcript of CT Scan

CT SCAN Definition stands for X-ray computed tomography C T Usage Medical imaging or industrial imaging diagnosis Head Lungs Cardiac Abdominal and Pelvic infraction, tumours, calcifications, bone trauma lung parenchyma imaging of the coronary arteries determine stage of cancer
investigate acute abdominal pain Process It is basically an advanced version of x-ray photography simple x-ray scan As an X-ray source rotates around an object, a sensor takes hundreds of "X-ray slice data."
A computer convert these data into a 3D image. Advantages Painless, noninvasive Fast Cost effective No radiation remains Thank you for listening Ah Young Donghyeon Kaitlyn Ken Hands on Activity Peel the orange Finished Separate it apart to several pieces Try to put them all together Start This step represents taking X-ray slice data This step represents composing data into a 3D image In the early 1900s, the Italian radiologist Alessandro Vallebona proposed a method called tomography An Austrian mathematician Johann Radon invented "Radon Transform" In 1937, a Polish mathematician, named Stefan Kaczmarz, developed a method called "Algebraic Reconstruction Technique" Mathmatical Improvement The first EMI-Scanner was installed in Atkinson Morley Hospital in Wimbledon, England, and the first patient brain-scan was done on 1 October 1971
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