A．Computer Aided Tomography
B．Computer Trans-Axial Tomography
C．Computerized Tomography
D．Computer Tomography
E．Computerized Transverse Tomography

A．條狀偽影：CT采樣過程中X線強(qiáng)度突然發(fā)生變化 
B．折疊偽影：掃描過程中不自主運(yùn)動所致 
C．雜亂偽影：重建過程故障所致 
D．放射狀偽影：高密度金屬所致 
E．環(huán)形偽影：數(shù)據(jù)采集系統(tǒng)故障所致