Soft-tissue phase-contrast tomography with an x-ray tube source

被引：117
|
作者：
Bech, Martin [1 ]
Jensen, Torben H. [1 ]
Feidenhans'l, Robert [1 ]
Bunk, Oliver [2 ]
David, Christian [2 ]
Pfeiffer, Franz [2 ,3 ]
机构：
[1] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark
[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[3] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
来源：
PHYSICS IN MEDICINE AND BIOLOGY | 2009年 / 54卷 / 09期
关键词：
GRATING INTERFEROMETER; TALBOT INTERFEROMETRY; REFRACTION CONTRAST; MICROTOMOGRAPHY;
D O I：
10.1088/0031-9155/54/9/010
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
We report the first experimental soft-tissue phase-contrast tomography results using a conventional x-ray tube source, with a millimeter-sized focal spot. The setup is based on a Talbot-Lau grating interferometer operated at a mean energy of 28 keV. We present three-dimensional ex vivo images of a chicken heart sample, fixated in formalin. The results clearly demonstrate the advantageous contrast attainable through phase-contrast imaging over conventional attenuation-based approaches.
引用
收藏
页码：2747 / 2753
页数：7
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