Abstract:Objective: To explore the effect of advanced iterative reconstruction algorithm (ADMIRE) on CT imaging of bronchial artery (BA) in people with different body mass index (BMI), and the best iterative reconstruction intensity was screened out. Methods: Fiftyone patients underwent BA CT imaging based on ADMIRE (intensity 1~5). According to BMI, they were divided into underweight group (BMI<18.5 kg/m2), normal weight group(18.5 kg/m2≤BMI<24.0 kg/m2), overweight group (BMI≥24.0 kg/m2). The BA diameter of the 3 groups and the subjective and objective scores of BA imaging quality under different ADMIRE intensities were compared to screen the optimal iterative reconstruction intensity. Results: There were no significant differences in the diameter of BA and the subjective and objective scores under the same ADMIRE intensity among the 3 groups (P>0.05). The image noise of each group decreased significantly with the increase of ADMIRE intensity, and the signal-to-noise ratio (SNR) and contrast to noise ratio (CNR) of normal weight group and overweight group increased significantly with the increase of ADMIRE intensity. Pair comparison of the same group showed that the SNR of the normal weight group under ADMIRE 5 intensity was statistically different from other iterative intensities and the SNR and CNR of the overweight group under ADMIRE 5 intensity were significantly different from other iterative intensities (P<0.05). The subjective score of ADMIRE 4 in the overweight group was significantly higher than the iterative intensity of 1-3 (P<0.05); the subjective scores of ADMIRE 4 and ADMIRE 5 in the normal weight group were similar (P>0 05), but the readability of ADMIRE 4 (96.3%) is higher than that of ADMIRE 5 (92.6%). Conclusion: The diameter of BA was not affected by BMI. ADMIRE 4 and ADMIRE 5 were recommended as the optimal iterative intensity level for displaying BA in the normal weight group and overweight group during BA CT imaging.
收稿日期: 2022-09-19
通讯作者:
崔磊(通讯作者),主任医师,E-mail: 13921610018@126.com
作者简介: 徐俊峰(1986—),男,硕士,副主任技师,主要从事CT、MR成像技术工作
引用本文:
徐俊峰, 张亚楠, 尹剑兵, 刘佳, 明佳蕾, 崔磊. ADMIRE对不同体重指数人群支气管动脉CT成像的影响[J]. 江苏大学学报:医学版, 2023, 33(02): 162-166,173.
XU Junfeng, ZHANG Yanan, YIN Jianbing, LIU Jia, MING Jialei, CUI Lei. Effect of advanced modeled iterative reconstruction on bronchial artery CT imaging in people with different body mass index#br#. Journal of Jiangsu University(Medicine Edition), 2023, 33(02): 162-166,173.