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Optical Engineering

Experimental measurement of human head motion for high-resolution computed tomography system design
Author(s): Liang Li; Zhiqiang Chen; Xin Jin; Hengyong Yu; Ge Wang
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Paper Abstract

Human head motion has been experimentally measured for high-resolution computed tomography (CT) design using a Canon digital camera. Our goal is to identify the minimal movements of the human head under ideal conditions without rigid fixation. In our experiments, all the 19 healthy volunteers were lying down with strict self-control. All of them were asked to be calm without pressures. Our results showed that the mean absolute value of the measured translation excursion was about 0.35 mm, which was much less than the measurements on real patients. Furthermore, the head motions in different directions were correlated. These results are useful for the design of the new instant CT system for in vivo high-resolution imaging (about 40 µm).

Paper Details

Date Published: 1 June 2010
PDF: 6 pages
Opt. Eng. 49(6) 063201 doi: 10.1117/1.3454379
Published in: Optical Engineering Volume 49, Issue 6
Show Author Affiliations
Liang Li, Tsinghua Univ. (China)
Zhiqiang Chen, Tsinghua Univ. (China)
Xin Jin, Tsinghua Univ. (China)
Hengyong Yu, Virginia Polytechnic Institute and State Univ. (United States)
Ge Wang, Virginia Polytechnic Institute and State Univ. (United States)

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