Analysis of low-dose cervical vertebra digital radiography

Objective The study is to investigate the value of low-dose cervical vertebra digital radiography.Methods Frontal and lateral cervical vertebra radiography were performed on 60 patients with cervical vertebra trauma.Regular dose was used for the first diagnosis and low dose was used for the follow-up visit.Based on the 120 radiographs taken from each of the two dose groups,the radiant exposure value and the dose area product(DAP) between the two groups were analyzed.Results The radiant exposure value and DAP of the low dose group was significantly lower than those of the regular group(P0.01).However,no significant difference in imaging quality was found between the two groups(Manne-Whitney U =1180.00,P=0.35).Conclusion Without influencing the imaging quality,low-dose cervical vertebra radiography could reduce the radiant exposure and absorption markedly.