ISSN 1004-4140
CN 11-3017/P
| Citation: |
MA T, LI F, ZHOU Y, et al. A Phantom Experimental Study on Improving the Imaging Quality of Stent CT at a Fast Heart Rate[J]. CT Theory and Applications, 2024, 33(5): 594-600. DOI: 10.15953/j.ctta.2024.021. (in Chinese).
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Objective: This study aimed to investigate the impact of different imaging parameters on stent imaging and stenosis assessment in a fast heart rate model. The goal was to reduce the radiation dose while ensuring image quality, and to provide a theoretical basis for optimizing computed tomography (CT) imaging parameters for stent imaging in patients with fast heart rates in future clinical practice. Methods: Different imaging parameters were set to obtain multiple sets of CT images of stents in a fast heart rate model. Four coronary artery stents with different internal diameters were used. Each stent was set to four levels of stenosis. Two different concentrations of iodine contrast agents were injected in batches. The Canon 320 CT scanner was used to perform scans at 100 kV and 120 kV tube voltages, and image reconstruction was performed using the stent reconstruction mode. Two radiologists, with more than three years of experience in coronary CT diagnosis, used a 5-point scoring method to subjectively evaluate image quality based on stent visualization, image quality, and stenosis assessment. Multiple regression analysis was conducted to assess the influence of stent diameter, stenosis level, tube voltage, and iodine contrast agent concentration on the subjective image quality scores. Results: The structures of the four stents could be visualized in all parameter combinations, but there were significant differences in the intraluminal display. The stent diameter, stenosis level, and iodine contrast agent concentration had a significant impact on the subjective image quality scores. The scores increased as the stent diameter increased and the stenosis level and iodine contrast agent concentration decreased. Moreover, the stent diameter had the strongest impact on the scores. Tube voltage did not significantly affect the subjective image quality scores. Conclusion: In fast heart rate conditions, the stent diameter, stenosis level, and iodine contrast agent concentration directly affect the image quality of stent CT imaging. Conversely, tube voltage had no impact on image quality. Our findings provided a theoretical basis for optimizing stent imaging protocols in patients with fast heart rates.
| [1] |
TU C C, XIE L, WANG Z J, et al. Association between ceramides and coronary artery stenosis in patients with coronary artery disease[J]. Lipids in Health and Disease, 2020, 19(1): 151. DOI:10.1186/ s12944-020-01329-0.
|
| [2] |
HAIDEGGER M, KNEIHSL M, NIEDERKORN K, et al. Blood biomarkers of progressive atherosclerosis and restenosis after stenting of symptomatic intracranial artery stenosis[J]. Scientific Reports, 2021, 11(1): 15599. DOI: 10.1038/s41598-021-95135-y.
|
| [3] |
中国心血管健康与疾病报告编写组. 中国心血管健康与疾病报告2022概要[J]. 中国循环杂志, 2023, 38(6): 583−612. DOI: 10.3969/j.issn.1000-3614.2023.06.001.
|
| [4] |
BERGSTRÖM G, PERSSON M, ADIELS M, et al. Prevalence of subclinical coronary artery atherosclerosis in the general population[J]. Circulation, 2021, 144(12): 916−929. DOI: 10.1161/CIRCULATIONAHA.121.055340.
|
| [5] |
AZIZ M U, SINGH S. Computed tomography of coronary artery atherosclerosis: A review[J]. Journal of Medical Imaging and Radiation Sciences, 2021, 52(S3): S19−S39. DOI: 10.1016/j.jmir.2021.08.007.
|
| [6] |
李笑石, 耿纪刚, 朱寅虎, 等. 不同迭代算法对冠状动脉CTA人工智能重建与分析的影响[J]. 中国CT和MRI杂志, 2023, 21(5): 63−66. DOI: 10.3969/j.issn.1672-5131.2023.05.022.
LI X S, GENG J G, ZHU Y H, et al. Effects of different reconstruction ratios of iterative modes on artificial intelligence reconstruction and analysis of coronary CTA[J]. Chinese Journal of CT and MRI, 2023, 21(5): 63−66. DOI: 10.3969/j.issn.1672-5131.2023.05.022. (in Chinese).
|
| [7] |
YANG C C, LAW W Y, LU K M, et al. Relationship between heart rate and optimal reconstruction phase in coronary CT angiography performed on a 256-slice multidetector CT[J]. British Journal of Radiology, 2019, 92(1101): 20180945. DOI: 10.1259/bjr.20180945.
|
| [8] |
LIANG J, WANG H, XU L. et al. Impact of SSF on diagnostic performance of coronary computed tomography angiography within 1 heart beat in patients with high heart rate using a 256-row detector computed tomography[J]. Journal of Computer Assisted Tomography, 2018, 42(1): 54−61. DOI: 10.1097/RCT.0000000000000641.
|
| [9] |
吴锟, 陈希奎, 唐贵超, 等. 320排容积CT“Target CTA扫描模式”在低心率患者冠状动脉CT血管成像中的应用探究[J]. 中国医疗设备, 2023, 38(1): 77−82. DOI: 10.3969/j.issn.1674-1633.2023.01.015.
WU K, CHEN X K, TANG G C, et al. Application study of “Target CTA Scanning Mode” in 320-row volume CT for coronary angiography in patients with low heart rate[J]. China Medical Devices, 2023, 38(1): 77−82. DOI: 10.3969/j.issn.1674-1633.2023.01.015. (in Chinese).
|
| [10] |
康瑞, 王昕, 石峰. 冠状动脉支架术后CTA成像的优化应用及再狭窄危险因素分析[J]. 中国中西医结合影像学杂志, 2020, 18(2): 153-156. DOI: 10.3969/j.issn.1672-0512.2020.02.014.
KANG R, WANG X, SHI F. The optimization of CTA imaging and the analysis of risk factors for the patients of coronary artery stent[J]. Chinese Imaging Journal of Integrated Traditional and Western Medicine, 2020, 18(2): 153-156. DOI:10.3969/j.issn.1672-0512.2020.02.014. (in Chinese).
|
| [11] |
王莹, 王奇政, 陈永晔, 等. 基于宽体探测器高分辨率扫描模式下的多种不同重建算法对冠状动脉支架可视化评估对比研究[J]. 中国医学计算机成像杂志, 2022, 28(4): 433−438. DOI: 10.3969/j.issn.1006-5741.2022.04.020.
WANG Y W, WANG Q Z, CHEN Y Y, et al. Comparison of different reconstruction algorithms for visual evaluation of coronary stents using the whole-organ high-definition CT scanner[J]. Chinese Computed Medical Imaging, 2022, 28(4): 433−438. DOI: 10.3969/j.issn.1006-5741.2022.04.020. (in Chinese).
|
| [12] |
阮席武, 蒋佳珅, 邵君, 等. 高心率患者冠状动脉CTA收缩期绝对时相重组的优化[J]. 临床放射学杂志, 2022, 41(5): 866−871. DOI: 10.3969/j.issn.1001-9324.2022.5.lcfsxzz202205014.
RUAN X W, JIANG J S, SHAO J, et al. Optimization of absolute phasic systolic acquisition in coronary CT angiography in patients with high heart rate[J]. Journal of Clinical Radiology, 2022, 41(5): 866−871. DOI: 10.3969/j.issn.1001-9324.2022.5.lcfsxzz202205014. (in Chinese).
|
| [13] |
陈艳, 卫旭瑛. 探究多层螺旋CTA成像中心率、最佳重建相位窗对其图像质量的影响[J]. 中国CT和MRI杂志, 2022, 20(6): 90−92. DOI: 10.3969/j.issn.1672-5131.2022.06.029.
CHEN Y, WEI X Y. Effect of center rate and optimal reconstruction window of multi-slice spiral (MSCT) CTA imaging on its image quality[J]. Chinese Journal of CT and MRI, 2022, 20(6): 90−92. DOI: 10.3969/j.issn.1672-5131.2022.06.029. (in Chinese).
|
| [14] |
王晓瑜, 祁荣兴, 黄胜. 低剂量冠状动脉CTA支架成像研究[J]. 放射学实践, 2019, 34(6): 698−702. DOI: 10.13609/j.cnki.1000-0313.2019.06.021.
|
| [15] |
KIYOHARA Y, AIKAWA T, KAYANUMA K, et al. Comparison of clinical outcomes among various percutaneous coronary intervention strategies for small coronary artery disease[J]. The American Journal of Cardiology, 2024, 211: 334−342. DOI: 10.1016/j.amjcard.2023.11.043.
|
| [16] |
中华医学会放射学分会心胸学组, 《中华放射学杂志》心脏冠状动脉多排CT临床应用指南写作专家组. 心脏冠状动脉CT血管成像技术规范化应用中国指南[J]. 中华放射学杂志, 2017, 51(10): 732−743. DOI: 10.3760/cma.j.issn.1005-1201.2017.10.004.
|
| [17] |
张维明, 牟晓静, 张浩, 等. 不同浓度对比剂在冠状动脉CTA检查中的图像质量临床分析[J]. 医学影像学杂志, 2022, 32(9): 1601−1603.
ZHANG W M, MOU X J, ZHANG H, et al. Analysis of image quality and safety of different concentrations of contrast agents in coronary CTA[J]. Journal of Medical Imaging, 2022, 32(9): 1601−1603. (in Chinese).
|
| [18] |
杨政君, 张昂, 陈勇, 等. 辐射剂量和管电压对CT图像质量的影响: 基于任务的图像质量评价[J]. CT理论与应用研究, 2022, 31(2): 211−217. DOI: 10.15953/j.ctta.2021.060.
YANG Z J, ZHANG A, CHEN Y, et al. The effect of radiation dose and tube potential on image quality of CT: A task-based image quality assessment[J]. CT Theory and Applications, 2022, 31(2): 211−217. DOI: 10.15953/j.ctta.2021.060. (in Chinese).
|
| [19] |
余燕武, 崔小巍, 王晓慧, 等. 低管电压技术在高心率患者冠状动脉CTA中的临床应用研究[J]. 中国医学创新, 2020, 17(23): 131−134. DOI: 10.3969/j.issn.1674-4985.2020.23.033.
YU Y W, CUI X W, WANG X H, et al. Clinical application of low tube voltage technique in coronary artery CTA in patients with high heart rate[J]. Medical Innovation of China, 2020, 17(23): 131−134. DOI: 10.3969/j.issn.1674-4985.2020.23.033. (in Chinese).
|
| [20] |
LEE J W, KIM C W, LEE H C, et al. High-definition computed tomography for coronary artery stents: Image quality and radiation doses for low voltage (100 kVp) and standard voltage (120 kVp) ECG-triggered scanning[J]. International Journal of Cardiovasc Imaging, 2015, 31(S1): 39−49. DOI: 10.1007/s10554-015-0686-y.
|
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