CT Scans of the Head Tim Brown.

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Presentation transcript:

CT Scans of the Head Tim Brown

What is a CT Scan? Computed Axial Tomography Scan X-rays Produces 3D image 2 types Spiral Electron Beam

Common Problems That Are Examined Head Injuries Concussions Tumors Strokes Other Brain Diseases

History In the early 1900’s Alessandro Vallebona proposed the single-slice method. In 1967 Sir Hounsfield thought up the first entire scanner. In 1971 the first commercial scanner was brought into use. Nobel Prize

Current State Improvements in Fixed/Portable Cone Beam CT Scans Speed Slice count Image quality Fixed/Portable Cone Beam CT Scans

Limitations Radiation Clarity Speed Size

Future Concentrated Beams Only scans the portion of the body needed Less radiation Increased coverage Higher resolution Only scans the portion of the body needed

Works Cited "CT - Head." Head CT (Computed Tomography, CAT Scan). N.p., 15 May 2012. Web. 01 Oct. 2012. <http://www.radiologyinfo.org/en/info.cfm?pg=headct >. "CT Scans." Wikipedia. Wikimedia Foundation, 26 Sept. 2012. Web. 01 Oct. 2012. <http://en.wikipedia.org/wiki/CT_scans>. Hofer, Matthias. CT Teaching Manual: A Systematic Approach to CT Reading. 3rd ed. New York, NY: Georg Thieme Verlag, 2007. Print. Holmes, Erskine J. Interpretation of Emergency Head CT. New York, NY: Cambridge UP, 2008. Google Books. Web. 01 Oct. 2012. <http://books.google.com/books?id=TYg6QRSnvw0C>.