Application of low-dose computed tomography in chest inspection in patients with chest pain caused by traumatic

Objective To investigate the value of low-dose CT scans in chest inspection in patients with chest pain caused by traumatic. Methods 78 cases of patients with chest pain caused by traumatic were divided into low-dose group and conventional group groups randomly. The patients of 2 groups were underwent low-dose CT scan and conventional-dose CT scan respectively. The score of subjective diagnosis and the indexes of radiation dose,including CT dose index( CTDI),dose length product( DLP),and effective dose( ED) were measured,calculated and assessed respectively on CT images of the two groups. Results Score of subjective diagnosis of 2 groups CT images were not statistically significant( P0. 05) while the indexes of radiation dose,including CTDI,DLP,and ED of CT images were significantly different from each other in 2 groups( P0. 05). The radiation dose is reduced with the decrease of tube current. Conclusion The method of decreasing tube current in chest CT inspection can be acceptable. Low-dose CT scans in chest inspection can fulfill the need of diagnosis,while the radiation dose of patients is apparently lower than the conventional scan.