多平面重建：全部图像行高分辨率骨密度算法重组,并利用多平面重建(MPR)技术重建轴面图像,得到两组不同mA值的直接扫描冠状面图像和与之对应的两组通过重建的轴面图像-The two group images including coronal direct scan images and the corresponding axial images by multi-planar reconstruction(MPR)with different mA were obtained by using