Impact of Advanced Modelled Iterative Reconstruction on Coronary
Stent Visualization
WANG Yan, YAO Xin-yu,
SU Zhuang-zhi, ZHU Xiao-lian,
DU Xiang-ying, LI Kun-cheng
Department of Radiology, Xuanwu Hospital
Capital Medical University, Beijing 100053,
China; Beijing Key Laboratory of Magnetic
Resonance Imaging and Brain Informatics,
Beijing 100069, China
Abstract：Objective To evaluate the impact of ADMIRE (Advanced Modelled Iterative Reconstruction) on
coronary artery stent visualization by using third generation dual-source CT. Methods 21 patients (33 stents
totally) who underwent Coronary Computed Tomography Angiography (CCTA) on a third generation dual
source CT scanner were included in the study. CCTA datasets were reconstructed by using different levels of
ADMIRE (1～5). Double-blinded and independent qualitative evaluation of image quality was performed by
two readers using a five-point scale (5 as the best). Quantitative assessment including stent diameter, luminal
attenuation difference, image noise, Signal-to-Noise Ratio (SNR) and Contrast-to-Noise Ratio (CNR) were
also performed, and analysis of the differences between the groups was made. Results The inter-observer
agreement for the subjective image quality scores was substantial (Kappa=0.836). The image quality of
ADMIRE 4 and ADMIRE 5 Group were the highest. a. The difference between stent diameter and luminal
attenuation were not statistically significant between five groups (P>0.05); b. The noise of ADMIRE 1 was the
highest (28.18±14.253), ADMIRE 5 was the lowest (12.82±5.282); The CNR and SNR of ADMIRE 1 were
the lowest (27.02±32.383, 30.20±39.174), ADMIRE 5 were the highest (69.05±51.748, 75.96±52.636); c.
The difference of noise between ADMIRE 5 and ADMIRE 4 was not statistically significant (P>0.05), there
was statistically significant difference with the other three groups (P<0.05), the difference of CNR and SNR
between ADMIRE 1～4 were not statistically significant (P>0.05), there was statistically significant difference
with ADMIRE 5. Conclusion ADMIRE can be used to improve the image quality of stents in CCTA, a higher
iterative strength level of ADMIRE should be preferred.
王艳，姚新宇，苏壮志，祝小莲，
杜祥颖，李坤成. 高级的基于模型的迭代重建对冠脉支架显示的影响[J]. 中国医疗设备, 2016, 31(12): 49-52.
WANG Yan, YAO Xin-yu,
SU Zhuang-zhi, ZHU Xiao-lian,
DU Xiang-ying, LI Kun-cheng. Impact of Advanced Modelled Iterative Reconstruction on Coronary
Stent Visualization. China Medical Devices, 2016, 31(12): 49-52.
