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Proceedings Paper

Respiratory-gated micro-CT using a carbon nanotube based micro-focus field emission x-ray source
Author(s): Guohua Cao; Yueh Z. Lee; Zejian Liu; Ramya Rajaram; Rui Peng; Xiomara Calderon-Colon; Lei An; Peng Wang; Tuyen Phan; David Lalush; Jianping Lu; Otto Zhou
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Paper Abstract

A prototype physiologically gated micro-computed tomography (micro-CT) system based on a field emission micro-focus x-ray source has been developed for in vivo imaging of small animal models. The novel x-ray source can generate radiation with a programmable waveform that can be readily synchronized and gated with non-periodic physiological signals. The system performance is evaluated using phantoms and sacrificed and anesthetized mouse models. Prospective respiratory-gated CT images of anesthetized free-breathing mice are collected using this scanner at 100msec temporal resolution and 10 lp/mm of 10% system MTF.

Paper Details

Date Published: 18 March 2008
PDF: 11 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 691304 (18 March 2008); doi: 10.1117/12.770592
Show Author Affiliations
Guohua Cao, Univ. of North Carolina, Chapel Hill (United States)
Yueh Z. Lee, Univ. of North Carolina, Chapel Hill (United States)
Zejian Liu, Univ. of North Carolina, Chapel Hill (United States)
Ramya Rajaram, Univ. of North Carolina, Chapel Hill (United States)
Rui Peng, Univ. of North Carolina, Chapel Hill (United States)
Xiomara Calderon-Colon, Univ. of North Carolina, Chapel Hill (United States)
Lei An, Univ. of North Carolina, Chapel Hill (United States)
Peng Wang, Univ. of North Carolina, Chapel Hill (United States)
Tuyen Phan, Univ. of North Carolina, Chapel Hill (United States)
David Lalush, North Carolina State Univ. (United States)
Jianping Lu, Univ. of North Carolina, Chapel Hill (United States)
Otto Zhou, Univ. of North Carolina, Chapel Hill (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

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