Reduction of moving artifacts caused by breathing in rats for in vivo micro-CT

本研究开发了一种软件，用于在使用体内微计算机断层扫描（CT）拍摄CT图像时，通过跟踪牙齿来减少大鼠呼吸引起的移动伪影。回顾性选择大鼠牙齿CT的原始投影数据，然后将其与呼吸引起的移动伪影相关联。从投影数据重构出m-模图像，用m-模图像计算运动作为位置的函数。对投影数据进行校正，利用校正后的投影数据重建CT图像。使用该软件减少了工件。

This study developed software for the reduction of moving artifacts due to breathing in rats by means of teeth tracking when CT images were taken using in vivo micro-computed tomography (CT).Raw projection data from the CT of teeth in rats were chosen retrospectively, which were then correlated with moving artifacts due to breathing. An m-mode image was reconstructed from the projection data, which was used to calculate motion as a function of position. The projection data were corrected and CT images were reconstructed using the corrected projection data.The artifacts were reduced using this software.