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CT Scans of the Head

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.

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CT Scans of the Head

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  1. CT Scans of the Head Tim Brown

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

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

  4. 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

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

  6. Limitations • Radiation • Clarity • Speed • Size

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

  8. 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 ThiemeVerlag, 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>.

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