X-ray phase microtomography with a single grating for high-throughput investigations of biological tissue

Biomed Opt Express. 2017 Jan 31;8(2):1257-1270. doi: 10.1364/BOE.8.001257. eCollection 2017 Feb 1.

Abstract

The high-throughput 3D visualisation of biological specimens is essential for studying diseases and developmental disorders. It requires imaging methods that deliver high-contrast, high-resolution volumetric information at short sample preparation and acquisition times. Here we show that X-ray phase-contrast tomography using a single grating can provide a powerful alternative to commonly employed techniques, such as high-resolution episcopic microscopy (HREM). We present the phase tomography of a mouse embryo in paraffin obtained with an X-ray single-grating interferometer at I13-2 Beamline at Diamond Light Source and discuss the results in comparison with HREM measurements. The excellent contrast and quantitative density information achieved non-destructively and without staining using a simple, robust setup make X-ray single-grating interferometry an optimum candidate for high-throughput imaging of biological specimens as an alternative for existing methods like HREM.

Keywords: (110.7440) X-ray imaging; (170.3880) Medical and biological imaging; (170.6960) Tomography; (180.7460) X-ray microscopy; (340.7450) X-ray interferometry.