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CT Scans of the Head

Explore the world of CT scans of the head, from how they work to common problems examined. Learn about the history, current state, limitations, and future advancements in this vital imaging technology.

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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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