ISSN 1004-4140
CN 11-3017/P
| Citation: |
XIE R G, WANG S Y, AN H B, et al. Impact of Electrocardiogram Gating Technology on Radiation Dose in Dual-source Computed Tomography High Pitch Spiral Scanning Using a Phantom[J]. CT Theory and Applications, xxxx, x(x): 1-7. DOI: 10.15953/j.ctta.2024.300. (in Chinese).
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Objective: To investigate the variations in radiation dose during dual-source computed tomography (CT) high pitch spiral scanning with and without electrocardiogram (ECG) gating. Materials and Methods: A phantom was scanned using dual-source CT. Scanning was performed with ECG gating and non-ECG gating techniques under automatic exposure control and non-automatic exposure control, using the same reference voltage of 100 kV and reference amperages (ECG gating group 400, 480, and 560 mAs/rot; non-ECG gating group 125, 150, and 175 mAs). The variations in radiation dose and image noise were measured. Results: Under automatic exposure control, the radiation doses of the ECG gating group (400, 480, and 560mAs/rot) and the non-ECG gating group (125, 150, and 175mAs) were not equal; fully automatic tube voltage modulation, t=−6.247, P < 0.05; semi-automatic: t=−6.247, P < 0.05; and closed: t=−9.475, P < 0.05. There were also differences in the image noise. Under non-automatic exposure control, the radiation doses of the ECG gating group (400, 480, and 560mAs/rot) and the non-ECG gating group (125, 150, and 175mAs) were equal (t=1.250, P=0.338), and the image noise was equal. Conclusion: Under automatic exposure control, the radiation doses and image noise of ECG gating and non-ECG gating were not equal but under non-automatic exposure control, they were equal.
| [1] |
HENGBIN A, RUIGANG X, YINGHUI G, et al. Progress of CT aortic angiography combined with coronary artery in the evaluation of acute aortic syndrome[J]. Frontiers in Cardiovascular Medicine, 2022, 9: 1036982. DOI: 10.3389/fcvm.2022.1036982.
|
| [2] |
BEERES M, WICHMANN J L, FRELLESEN C, et al. ECG-gated versus non-ECG-gated high-pitch dual-source CT for whole body CT angiography (CTA)[J]. Academic Radiology, 2016, 23(2): 163-167. DOI: 10.1016/j.acra.2015.09.003.
|
| [3] |
SARAH E M, J ANTHONY S, RAMIT L, et al. Methods for CT automatic exposure control protocol translation between scanner platforms[J]. Journal of the American College of Radiology, 2014, 11(3): 285-291. DOI: 10.1016/j.jacr.2013.10.014.
|
| [4] |
MARCUS S. Overview, practical tips and potential pitfalls of using automatic exposure control in CT: Siemens care dose 4D[J]. Radiation Protection Dosimetry, 2016, 169(1/4): 84-91. DOI: 10.1093/rpd/ncv459.
|
| [5] |
LURZ M, LELL M M, WUEST W, et al. Automated tube voltage selection in thoracoabdominal computed tomography at high pitch using a third-generation dual-source scanner image quality and radiation dose performance[J]. Investigative Radiology, 2015, 50(5): 352-360. DOI: 10.1097/RLI.0000000000000133.
|
| [6] |
KARLO C, LESCHKA S, GOETTI R P, et al. High-pitch dual-source CT angiography of the aortic valve-aortic root complex without ECG-synchronization[J]. European Radiology, 2011, 21(1): 205-212. DOI: 10.1007/s00330-010-1907-3.
|
| [7] |
李剑, 宦怡, 赵宏亮, 等. 双源CT心电门控和非门控大螺距主动脉成像质量与辐射剂量的对照研究[J]. 中华放射学杂志, 2013, 47(4): 301-304. DOI: 10.3760/cma.j.issn.1005-1201.2013.04.003.
LI J, HUAN Y, ZHAO H L, et al. Comparison of prospective electrocardiography-gating high-pitch mode and without electrocardiographysynchronization high-pitch mode acquisition for the image quality and radiation doses of the aortic using dual-source CT[J]. Chinese journal of radiology, 2013, 47: 301-305. DOI:10.3760/CMA.J.ISSN.1005-1201.2013.04.003.(in Chinese).
|
| [8] |
FREY G D. Basic CT parameters[J]. American Journal of Roentgenology, 2014, 203(2): W126-127. DOI: 10.2214/AJR.13.10994.
|
| [9] |
李雪, 王照谦, 杨志强, 等. 双源CT心电门控与非门控Flash扫描主动脉成像的对照研究[J]. 临床放射学杂志, 2018, 37(5): 869-873. DOI: 10.13437/j.cnki.jcr.2018.05.039.
LI X, WANG Z Q, YANG Z Q, et al. Comparison of Non-ECG-Gated and Gated Flash Mode of Dual-Source CT in Aorta Angiography[J]. Journal of Clinical Radiology, 2018, 37(5): 869-873. DOI: 10.13437/j.cnki.jcr.2018.05.039.
|
| [10] |
ANDRé F, KOROSOGLOU G, HOSCH W, et al. Performance of dual source versus 256-slice multi-slice CT in the evaluation of 16 coronary artery stents[J]. European Journal of Radiology, 2013, 82(4): 601-607. DOI: 10.1016/j.ejrad.2012.04.039.
|
| [11] |
薛水培, 高德宏, 姜梅, 等. 自动管电流调制技术在双源CT冠状动脉成像中降低辐射剂量的价值[J]. CT理论与应用研究, 2014, 23(3): 379-384.
XUE S P, GAO D H, JIANG M, et al. Value of automatic tube current modulation techniques to reducing the radiation dose in dual-source CT coronary artery imaging[J]. CT Theory and Applications, 2014, 23(3): 379-384. (in Chinese).
|
| [12] |
王晓华, 张艳, 袁慧书. 自动管电压调制技术参考毫安秒对胸部CT平扫图像质量和辐射剂量的影响[J]. 中华放射学杂志, 2015, 49(3): 179-182. DOI: 10.3760/cma.j.issn.1005-1201.2015.03.005.
WANG X H, ZHANG Y, YUAN H S. Effect of reference mAs in CARE kV technique on image quality and radiation dose in unenhanced chest CT[J]. Chinese journal of radiology, 2015, 49(3): 179-182. DOI: 10.3760/cma.j.issn.1005-1201.2015.03.005.
|
| [13] |
刘丹丹, 崔莹, 赵波, 等. 自动管电流模式下管电压对CT辐射剂量和影像质量影响的模体研究[J]. 中华放射医学与防护杂志, 2018, 38(9): 710-714. DOI: 10.3760/cma.j.issn.0254-5098.2018.09.014.
LIU D D, CUI Y, ZHAO B, et al. The phantom study of the effect of tube voltage on radiation dose and image quality of CT with automatic tube current modulation mode[J]. Chinese Journal of Radiological Medicine and Protection, 2018, 38(9): 710-714. DOI: 10.3760/cma.j.issn.0254-5098.2018.09.014. (in Chinese).
|
| [14] |
ZHENG X M. 医用CT仪上基于衰减的曝光量和峰值电压自动控制基本等式[J]. CT理论与应用研究, 2016, 25(6): 625-632. DOI: 10.15953/j.1004-4140.2016.25.06.01.
ZHENG X M. Attenuation based governing equations for automatic mAs and kVp controls in medical X-ray CT imaging[J]. CT Theory and Applications, 2016, 25(6): 625-632. DOI: 10.15953/j.1004-4140.2016.25.06.01.
|
| [15] |
王晨思, 洪瑶, 方慧敏, 等. 基于自动管电流调制技术下不同螺距对颈部CTA辐射剂量及图像质量影响的研究[J]. CT理论与应用研究(中英文), 2024, 33(3): 309-315. DOI: 10.15953/j.ctta.2023.148.
WANG C S, HONG Y, FANG H M, et al. Based on the effect of different pitches on neck CTA radiation dose and image quality under automatic tube current modulation technology[J]. CT Theory and Applications, 2024, 33(3): 309-315. DOI: 10.15953/j.ctta.2023.148.
|
| [16] |
季文超, 田蔚莉, 刘文亚, 等. 佳能320可变螺距联合迭代重建技术在双下肢CTA血管成像中的运用研究[J]. CT理论与应用研究(中英文), 2025, 34(1): 149-154. DOI: 10.15953/j.ctta.2024.009.
JI W C, TIAN W L, LIU W Y, et al. Application of the canon 320 row variable helical pitch CTA system combined with iterative reconstruction technology for lower limb vascular imaging[J]. CT Theory and Applications, 2025, 34(1): 149-154. DOI: 10.15953/j.ctta.2024.009.
|
| [17] |
王诗耕, 浦仁旺, 刘义军, 等. 能谱 CT 下肢静脉成像优化: 模体研究[J]. CT理论与应用研究(中英文), 2025, 34(1): 73-81. DOI: 10.15953/j.ctta.2024.117.
WANG S G, PU R W, LIU Y J, et al. Optimization of dual-energy spectral lower-extremity computed tomography venography scanning protocol: Phantom study[J]. CT Theory and Applications, 2025, 34(1): 73-81. DOI: 10.15953/j.ctta.2024.117.
|
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