Abstract:
:Diffraction-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.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Chou CY,Anastasio MA,Brankov JG,Wernick MN,Brey EM,Connor DM,Zhong Zdoi
10.1088/0031-9155/52/7/011subject
Has Abstractpub_date
2007-04-07 00:00:00pages
1923-45issue
7eissn
0031-9155issn
1361-6560pii
S0031-9155(07)31203-7journal_volume
52pub_type
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