Micro-Computed TomographyEducational Notes

Micro-Computed Tomography (Micro-CT)

Micro-CT is one of the most versatile non-invasive investigative techniques in the medical field, with applications spanning industry, archaeology, life science, geoscience, and crime investigations. It is able to image internal biological structures without sample preparation required for most electron microscope techniques.

Micro-CT works by illuminating an object with x-rays and collecting magnified projection images via a planar x-ray detector. The object is rotated to obtain multiple angular images which are stacked together to form a three-dimensional image. By using high-resolution, wide-dynamic-range CCD cameras, x-ray micro-CT is able to overcome the sub-millimeter critical limitation present with x-ray computed tomography (CT).

Human cortical bone showing Haversian and Volkmann’s canals. Voxel size = 4 um^3. image courtesy of Dr Tim Senden. ANU. Canberra Australia

Application Notes

X-Ray µCT Provides Nondestructive, High-Resolution 3D Imaging for Research and Industrial Applications

Since the early 1970s, x-ray computed tomography (CT) has been one of the most versatile noninvasive investigative techniques in the medical field. It has also enabled non-destructive investigations in many other fields over the past few decades, including industry, archaeology, life science, geoscience, and crime investigations. Unfortunately, conventional x-ray CT systems are only able to achieve…Read Full Article