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Imaging

  • William Oldendorf
  • William OldendorfJr.
Part of the Topics in Neurology book series (TINE, volume 1)

Abstract

In the first figure of the introduction, we described the X-ray CT scan as accomplishing the following imaginary sequence of events: The head is frozen and a fine saw makes two transverse cuts one centimeter apart, thereby creating a cross-sectional slab of head one centimeter thick. This slice is removed intact, placed on high-contrast X-ray film, and exposed to a broad beam of X-rays at right angles to the slice of tissue. When the radiograph of the slice has been processed and placed on a viewbox, the image would be essentially the same as that produced by the CT scanner. The CT scanner produces these results without physically altering the head. Except for slight tissue ionization, this process is entirely harmless (Figure 1).

Keywords

Resonant Frequency Radio Wave Radio Signal Transverse Slice Stimulate Pulse 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Martinus Nijhoff Publishing, Boston. 1988

Authors and Affiliations

  • William Oldendorf
  • William OldendorfJr.

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