https://scholars.lib.ntu.edu.tw/handle/123456789/634229
標題: | A comparison of a generalized DEI method with multiple-image radiography | 作者: | CHENG-YING CHOU Anastasio, M.A. Brankov, J.G. Wernick, M.N. |
關鍵字: | Diffraction enhanced imaging | Multiple-image radiography | Phase-contrast imaging | X-ray ultra-small-angle scattering | 公開日期: | 2006 | 卷: | 6318 | 來源出版物: | Progress in Biomedical Optics and Imaging - Proceedings of SPIE | 摘要: | 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 E-DEI 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. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/634229 http://www.scopus.com/inward/record.url?eid=2-s2.0-33750720325&partnerID=MN8TOARS |
ISBN: | 0819463973 | ISSN: | 0277786X | DOI: | 10.1117/12.681203 |
顯示於: | 生物機電工程學系 |
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