Abstract：Objective To explore the application value of Asir-V technology in low dose chest scanning in children. Methods Sixty
cases were randomly divided into three groups (20 in each group) based on different algorithms: group A (Asir-V: 30%), group B
(Asir-V: 50%), group C (Asir-V, 70%). The SD of muscle of back in thoracic inlet level, trachea bifurcation level and the bottom
of heart level were used as the background noise index. The dose length product of each case was recorded, and the effective dose
was calculated according to the formula. The SD and ED values were compared among the 3 groups. Results The SD values in the
three groups were 21.74±1.39, 21.42±1.67 and 22.07±1.99, respectively. The DLP values were (18.99±9.55), (12.77±4.22) and
(7.45±2.01) mGy·cm. ED values were (0.57±0.21), (0.34±0.10) and (0.20±0.05) mSv, respectively. There were no significant
difference between any two groups for SD value (P>0.05). However, there were significant differences for ED value in any two
groups (P<0.01). Conclusion Asir-V technology is not only ensure the quality of the image, but also effectively reduce the radiation
dose. So it has great value for low dose scanning in children’s chest.
董丽娜. 迭代算法（Asir-V）在儿童胸部扫描中的应用价值[J]. 中国医疗设备, 2018, 33(1): 69-71.
DONG Lina. Application Value of Asir-V Technology in the Low Dose Scanning of Children’s Chest. China Medical Devices, 2018, 33(1): 69-71.
