Title: Talbot-Lau Interferometer Based Multi-contrast Computed Tomography and Potential Clinical Applications

Speaker: Dr. Guang-Hong Chen

Host: Prof. WEI Long, IHEP Deputy Director

Time: 10PM, June, 29

Place: Room C305, IHEP Main Building

Abstract:

The basic physics of image formation and interpretation in x-ray biomedical imaging, including x-ray computed tomography (CT), have remained essentially unchanged since R？ntgen first discovered x-rays in 1895. As a result, the absorption effect remains the sole intrinsic contrast mechanism for x-ray biomedical imaging. This is unlike magnetic resonance imaging (MRI), where multiple contrast mechanisms are available for use in specific applications. In this seminar, advances in the exploration of the wave and particle nature of x-rays to generate multiple contrast mechanisms in CT will be discussed. Unlike other multi-contrast imaging modalities, the multiple contrast mechanisms in x-ray CT are generated from the same data acquisition. The potential applications of these contrast mechanisms in future medical diagnosis and industrial applications will be discussed.

About the speaker:

Dr. Guang-Hong Chen graduated from Physics Department, Beijing Normal University and then he moved to the United States to study semiconductor physics and strongly correlated systems under the supervision of Prof. Mikhail Raikh and Prof. Yong-Shi Wu and received his Ph.D in 1999. He worked on a variety of theoretical physics topics including 2D strongly correlated systems, Bose-Einstein condensation and noncommutative field theories. In the fall of 2002, Guang-Hong completely switched his research directions from theoretical physics to medical physics and was appointed as a tenured track Assistant Professor and the Director of X-ray CT Imaging Center at the University of Wisconsin-Madison. He was promoted to the Tenured Full Professor of Medical Physics and Radiology in 2011 and the Director of X-ray CT Imaging Center.