Abstract：Objective To investigate the application value of low tube current combined with ASIR-V iterative reconstruction
algorithm in reducing radiation dose of patients during the whole brain perfusion scanning with wide detector CT. Methods 50
patients with brain CT perfusion scan were randomly divided into group A and group B, 25 cases in each group. Group A (80 kV, 50 mA),
50% ASIR-V reconstruction. Group B (80 kV, 75 mA), FBP reconstruction. The image quality of the two groups was evaluated
subjectively and objectively, and the image quality and radiation dose were compared. Results The subjective image scores of the
two groups were satisfied the diagnostic requirements, and the difference was not statistically significant (P>0.05). There were
significant differences in signal to noise ratio between the two groups (P<0.05), but there was no significant difference in other
perfusion parameters and objective image quality indexes (P>0.05). The radiation dose of group A was 33% lower than that of group
B. Conclusion Using low tube current combined with ASIR-V iterative reconstruction algorithm in wide detector CT perfusion
scanning, the brain CT perfusion parameters are not affected, and the image quality can meet the diagnostic needs,while the radiation
dose received by patients is significantly reduced.
游永春，李万江，帅桃，李真林. 低管电流联合ASIR-V迭代重建算法在宽体探测器CT全脑灌注扫描中的应用价值[J]. 中国医疗设备, 2021, 36(8): 90-93.
YOU Yongchun, LI Wanjiang, SHUAI Tao, LI Zhenlin. Application Value of Low Tube Current Combined with ASIR-V Iterative Reconstruction
Algorithm in Wide Detector CT Whole Brain Perfusion Scanning. China Medical Devices, 2021, 36(8): 90-93.
