7 September 2006 A comparison of a generalized DEI method with multiple-image radiography
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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.
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Cheng-Ying Chou, Cheng-Ying Chou, Mark A. Anastasio, Mark A. Anastasio, Jovan G. Brankov, Jovan G. Brankov, Miles N. Wernick, 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); doi: 10.1117/12.681203; https://doi.org/10.1117/12.681203
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