短语词组短语CT reinforced scan CT 增强扫描ct -scan 扫描ct axial scan ct 轴位扫描CT enhanced scan CT 增强扫描spiral ct enhanced scan 螺旋ct增强扫描ct plain scan ct 平扫ct coronal scan 冠扫ct coronary scan ct 冠状扫描spiral ct volume scan 螺旋ct容积扫描 返回 CT scan