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Abstract #1299

Noncontact physiological measurements using video recording inside an MRI scanner

Shang-Yi Yang 1 , Hsaio-Hui Huang 1 , Chi-Wei Liang 1 , Shang-Yueh Tsai 2 , and Teng-Yi Huang 1

1 National Taiwan University of Science and Technology, Taipei, Taiwan, Taiwan, 2 The Graduate Institute of Applied Physics, National Chengchi University, Taipei, Taiwan, Taiwan

This study attempts to use video recording as a tool for physiology monitoring in an MRI scanner. During a cardiac cycle, facial skin blood perfusion changes alter optical path of ambient light emitted to the subjects face. Using a conventional digital camera to capture the changes of the reflected light and using ICA analysis to remove other sources in light, we identify that this method is feasible in a low-light MRI bore. This method is an optic-based technique which avoids the problem associated with switching gradient system.

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