X-ray Phase-Contrast Radiography and Tomography with a Multiaperture Analyzer

Low-dose phase contrast tomography with conventional x-ray sources.

PURPOSE The edge illumination (EI) x-ray phase contrast imaging (XPCi) method has been recently further developed to perform tomographic and, thus, volumetric imaging. In this paper, the first tomographic EI XPCi images acquired with a conventional x-ray source at dose levels below that used for preclinical small animal imaging are presented. METHODS Two test objects, a biological sample and ...

Helical X-ray phase-contrast computed tomography without phase stepping

X-ray phase-contrast computed tomography (PCCT) using grating interferometry provides enhanced soft-tissue contrast. The possibility to use standard polychromatic laboratory sources enables an implementation into a clinical setting. Thus, PCCT has gained significant attention in recent years. However, phase-contrast CT scans still require significantly increased measurement times in comparison ...

X-Ray Phase-Contrast Tomography of Renal Ischemia-Reperfusion Damage

PURPOSE The aim of the study was to investigate microstructural changes occurring in unilateral renal ischemia-reperfusion injury in a murine animal model using synchrotron radiation. MATERIAL AND METHODS The effects of renal ischemia-reperfusion were investigated in a murine animal model of unilateral ischemia. Kidney samples were harvested on day 18. Grating-Based Phase-Contrast Imaging (GB...

Time-resolved Phase Contrast Radiography and DEI with Partial Coherent Hard X-ray at BSRF

Recent advances in edge illumination x-ray phase-contrast tomography.

Edge illumination (EI) is an x-ray phase-contrast imaging technique, exploiting sensitivity to x-ray refraction to visualize features, which are often not detected by conventional absorption-based radiography. The method does not require a high degree of spatial coherence and is achromatic and, therefore, can be implemented with both synchrotron radiation and commercial x-ray tubes. Using diffe...