Phase-contrast tomographic imaging using an X-ray interferometer

被引：46

作者：

Momose, A ^{[1
]}

Takeda, T

Itai, Y

Yoneyama, A

Hirano, K

机构：

[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 35003, Japan

[2] Univ Tsukuba, Inst Clin Med, Tsukuba, Ibaraki 305, Japan

[3] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 185, Japan

[4] High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 305, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1998年 / 5卷

关键词：

phase contrast; tomography; X-ray interferometers; phase retrieval; cancer;

D O I：

10.1107/S0909049597014271

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Apparatus for phase-contrast X-ray computed tomography using a monolithic X-ray interferometer is presented with some observational results for human breast tissues. Structures characteristic of the tissues were revealed in the phase-contrast tomograms. The procedure of image analysis consists of phase retrieval from X-ray interference patterns and tomographic image reconstruction from the retrieved phase shift. Next, feasibility of phase-contrast imaging using a two-crystal X-ray interferometer was studied aiming at in vivo observation in the future. In a preliminary study, the two-crystal X-ray interferometer was capable of generating fringes of 70% visibility using synchrotron X-rays.

引用

页码：309 / 314

页数：6

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