Cheng-Ying Chou et al 2007 Phys. Med. Biol. 52 1923 doi:10.1088/0031-9155/52/7/011
Cheng-Ying Chou1, Mark A Anastasio1, Jovan G Brankov2, Miles N Wernick1,2, Eric M Brey1,3, Dean M Connor Jr4 and Zhong Zhong4
Show affiliationsDiffraction-enhanced imaging (DEI) is an analyser-based x-ray imaging method that produces separate images depicting the projected x-ray absorption and refractive properties of an object. Because the imaging model of DEI does not account for ultra-small-angle x-ray scattering (USAXS), the images produced in DEI can contain artefacts and inaccuracies in medical imaging applications. In this work, we investigate an extended DEI method for concurrent reconstruction of three images that depict an object's projected x-ray absorption, refraction and USAXS properties. The extended DEI method can be viewed as an implementation of the recently proposed multiple-image radiography paradigm. Validation studies are conducted by use of computer-simulated and synchrotron measurement data.
Issue 7 (7 April 2007)
Received 23 August 2006, in final form 18 December 2006
Published 16 March 2007
Cheng-Ying Chou et al 2007 Phys. Med. Biol. 52 1923
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