Title

Measurements of the MTF of a small animal micro-CT system

RIS ID

79224

Publication Details

Wei, Q., Qi, Y. & Zhang, X. (2011). Measurements of the MTF of a small animal micro-CT system. Hedianzixue Yu Tance Jishu, 31 (3), 293-296, 318.

Abstract

The aim of the study was to determine the spatial resolution of the small animal micro-CT system.A standard wire phantom was used to measure the modular transfer function(MTF)of the micro-CT system.On the imaging conditions with X-ray tube voltage of 40 kVp,exposure time of 1 second,detector mode of 2×2, and system magnification factor of 2,the measured system spatial resolution is ~11lp/mm at 10%MTF,which is about 91 microns.The results showed that the small animal micro-CT that we developed has met our design goal to achieve the spatial resolution under 100 microns.

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