摘要
本文采用逐步降低CT剂量的方法,获得满足诊断要求的腹部CT最低剂量阈值。在此剂量下,CT的mAs降低了61.8%~74.0%,加权CT剂量指数降低了70.0%~83.3%。因此,适当降低CT扫描剂量,仍然能够获得满意的诊断图像,既保护了患者,又降低了CT的设备损耗。
With gradually reducing amount of mAs,it was carried out the lowest dose of diagnosis image for body CT.Used this dose,the mAs of CT have reduced 61.8%~74.0%,and the CTDI have reduced 70.0%~83.3%.So reducing CT dose,we will not only get appropriate diagnosis image,but also reduce damage of patient and wastage of CT device.
出处
《中国医疗设备》
2010年第7期9-10,6,共3页
China Medical Devices
基金
吉林省科技厅项目(20030421-04)
长春市科技局项目(06GJ02)
