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Effect of advanced modeled iterative reconstruction on bronchial artery CT imaging in people with different body mass index#br# |
XU Junfeng, ZHANG Yanan, YIN Jianbing, LIU Jia, MING Jialei, CUI Lei |
(Department of Radiology, the Second Affiliated Hospital of Nantong University, Nantong Jiangsu 226001, China)
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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.
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Received: 19 September 2022
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[1]Buzzi JF, Remyjardin M, Delhaye D, et al. Multidetector row CT of hemoptysis[J]. Radiographics, 2006, 26(1): 3-22.
[2]Almeida J, Leal C, Figueiredo L. Evaluation of the bronchial arteries: normal findings, hypertrophy and embolization in patients with hemoptysis[J]. Insights Imaging, 2020, 11(1): 70.
[3]张兵, 岳天华, 黄健, 等. 支气管动脉CT血管成像在支气管动脉栓塞治疗中的作用[J]. 实用放射学杂志, 2019, 35(6): 963-966.
[4]高垒, 杨青, 胡亚彬, 等. 双入口CT灌注评价肺腺癌和肺鳞癌血供特征[J]. 中国医学影像技术, 2017, 33(3): 419-422.
[5]王苑丁, 姚新宇, 苏壮志, 等. 应用高级迭代重建改善低剂量冠状动脉CT血管成像图像质量的研究[J]. 医学影像学杂志, 2017, 27(5): 819-824.
[6]Huda W, Scalztti EM, Levin G. Technique factors and image quality as functions of patient weight at abdominal CT[J]. Radiology, 2000, 217(2): 430-435.
[7]胡纳, 李勇, 赵林伟, 等. 双源CT虚拟单能技术在支气管动脉血管成像中的应用研究[J]. 中国临床医学影像杂志, 2020, 31(1): 38-41, 56.
[8]Furuse M, Saito K, Kunieda E, et al. Bronchial arteries: CT demonstration with arteriographic correlation[J]. Radiol, 1987, 162(2): 393-398.
[9]程艳艳, 刘芝艳. 支气管动脉CTA: 动脉直径与中心型肺癌的关系研究[J]. 中国中西医结合影像学杂志, 2013, 11(3): 256-258.
[10]Ellmann S, Kammerer F, Allmendinger T, et al. Advanced modeled iterative reconstruction (ADMIRE) facilitates radiation dose reduction in abdominal CT[J]. Acad Radiol, 2018, 25(10): 1277-1284.
[11]程香, 何玲, 陈欣. 管电流自动调节技术在儿童腹部CT中的应用[J]. 中国医学影像技术, 2015, 31(2): 294-297.
[12]Gordic S, Desbiolles L, Sedlmair M, et al. Optimizing radiation dose by using advanced modelled iterative reconstruction in high pitch coronary CT angiography[J]. Eur Radiol, 2016, 26(2): 459-468.
[13]Hou Y, Liu X, Xv S, et al. Comparisons of image quality and radiation dose between iterative reconstruction and filtered back projection reconstruction algorithms in 256MDCT coronary angiography[J]. AJR, 2012, 199(3): 588-594.
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