Small-animal CT: Its difference from, and impact on, clinical CT
Section snippets
Basic components for high-resolution computed tomography (CT)
All micro-CT scanners follow the same general plan: an X-ray source, a specimen that is to be imaged, an X-ray-to-electronic signal-converting imaging array and a device that either rotates the specimen within a stationary scanner or rotates the scanner around the stationary specimen. The method for providing high resolution is illustrated in Fig. 1.
The volume of a mammal's internal organs scales with its body weight [1]. Hence, if we wish to merely scale clinical images of an adult human to a
Ongoing developments of X-ray micro-CT
There will likely be continued incremental improvements of the technology of the scanners, and there are several potential physics aspects that are being explored for the purpose of broadening the spectrum of contrast mechanisms that can be utilized [10]. The synchrotron radiation source, with its brilliance and energy-selective and narrow bandwidth photon generation capabilities, provides a convenient and effective means to study nonattenuation-based X-ray imaging, such as phase delay [11],
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