Contrast enhancement in X-ray phase contrast tomography

被引：11
作者：
Pan, Adam [1 ]
Xu, Ling [1 ]
Petruccelli, Jon C. [2 ]
Gupta, Rajiv [3 ]
Singh, Bipin [4 ]
Barbastathis, George [5 ,6 ,7 ]
机构：
[1] MIT, Dept Hlth Sci & Technol, Cambridge, MA 02139 USA
[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA
[3] Massachusetts Gen Hosp, Dept Imaging, Boston, MA 02215 USA
[4] Radiat Monitoring Devices Inc, Watertown, MA 02472 USA
[5] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
[6] Singapore MIT Alliance Res & Technol SMART Ctr, Singapore 138602, Singapore
[7] Univ Michigan, Joint Inst, Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 15期
关键词：
RETRIEVAL; TRANSPORT; RECONSTRUCTION; ALGORITHMS;
D O I：
10.1364/OE.22.018020
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate phase contrast enhancement of X-ray computed tomography derived from propagation based imaging. In this method, the absorption and phase components are assumed to be correlated, allowing for phase retrieval from a single image. Experimental results are shown for liquid samples. Signal-to-noise ratio is greatly enhanced relative to pure attenuation based imaging. (C) 2014 Optical Society of America
引用
收藏
页码：18020 / 18026
页数：7
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