A comparison of a generalized DEI method with multiple-image radiography

Cheng-Ying Chou; Mark A. Anastasio; Jovan G. Brankov; Miles N. Wernick

doi:10.1117/12.681203

7 September 2006 A comparison of a generalized DEI method with multiple-image radiography

Cheng-Ying Chou, Mark A. Anastasio, Jovan G. Brankov, Miles N. Wernick

Proceedings Volume 6318, Developments in X-Ray Tomography V; 631819 (2006) https://doi.org/10.1117/12.681203
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Diffraction enhanced imaging (DEI) is an analyzer-based X-ray phase-contrast imaging method that measures the absorption and refractive properties of an object. A well-known limitation of DEI is that it does not account for ultra-small-angle X-ray scattering (USAXS), which is produced commonly by biological tissue. In this work, an extended DEI (E-DEI) imaging method is described that attempts to circumvent this limitation. The EDEI method concurrently reconstructs three images that depict an object's projected absorption, refraction, and USAXS properties, and can be viewed as an implementation of the multiple-image radiography (MIR) paradigm. Planar and computed tomography (CT) implementations of E-DEI and an existing MIR method are compared by use of computer-simulation studies that employ statistical models to describe USAXS effects.

Citation Download Citation

Cheng-Ying Chou, Mark A. Anastasio, Jovan G. Brankov, and Miles N. Wernick "A comparison of a generalized DEI method with multiple-image radiography", Proc. SPIE 6318, Developments in X-Ray Tomography V, 631819 (7 September 2006); https://doi.org/10.1117/12.681203

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