多层螺旋CT胸部低剂量扫描在煤工尘肺诊断中的应用
杜鹏;曹爱红;郭子威;邵青;徐凯
【期刊名称】《中华劳动卫生职业病杂志》 【年(卷),期】2016(034)009
【摘要】Objective To investigate the value of low-dose multi-slice CT (MSCT)
chest
scan
in
the
diagnosis
of
coal
workers'
pneumoconiosis.Methods A total of 90 patients with a confirmed diagnosis of coal workers' pneumoconiosis were enrolled,and under the conditions of fixed tube voltage,pitch,and slice thickness,they underwent CT scan with a normal dose (150 mA) and a low dose (30-50 mA).The quality of images obtained from two scans was compared,and the imaging findings,opacity profusion,stage,and radiation doses were also compared.Results Compared with the normal-dose scan,low-dose scan increased the image noise,and the images obtained from scans with doses of 30,40,and 50 mA did not show significant reductions in signal-to-noise ratio or contrast-to-noise ratio (P＞0.05).There was no significant difference in the percentage of image quality between low-dose and normal-dose scans (P＞0.05).There were no significant differences in the percentage of various imaging findings,opacity profusion,or percentage of different stages between low-dose (30,40,and 50 mA) and normal-dose (150 mA) scans (P＞0.05).Conclusion There are no significant differences between low-dose
多层螺旋CT胸部低剂量扫描在煤工尘肺诊断中的应用
