256排CT在任意心律下进行冠状动脉成像的应用价值

顾文豪; 王立环; 王彩红; 郁一凡

doi:10.7619/jcmp.202024010

256排CT在任意心律下进行冠状动脉成像的应用价值

江苏省太仓市第一人民医院影像科, 江苏太仓, 215400

详细信息

中图分类号: R816.2;R541.7
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出版历程
- 收稿日期: 2020-10-21
- 网络出版日期: 2020-12-29

Application value of coronary angiography by 256-slice CT scanner in free rhythm of the heart

Department of Imaging, The First People's Hospital of Taicang City in Jiangsu Province, Taicang, Jiangsu, 215400

摘要

摘要: 目的探讨256排CT在任意心律下进行冠状动脉成像的应用价值。方法选取116例行冠状动脉检查的患者作为研究对象,将心律齐的86例患者纳入心律齐组,将心律不齐的30例患者纳入心律不齐组。2组受试者均采用Revolution 256排CT联合冠状动脉追踪冻结(SSF)技术进行冠状动脉CT血管成像(CCTA)。比较2组的图像质量、有效剂量(ED)、平均CT值、信噪比(SNR)。结果 2组一般资料(年龄、体质量、扫描心率)比较,差异无统计学意义(P>0.05); 2组冠状动脉图像质量主观评分比较,差异无统计学意义(P>0.05), 且2位评价者的一致性较好(Kappa=0.95); 心律齐组平均CT值为(404.73±50.91) Hu, 心律不齐组为(386.23±60.25) Hu, 差异无统计学意义(P>0.05): 心律齐组的SNR为(16.03±3.21), 心律不齐组为(14.86±3.29), 差异无统计学意义(P>0.05); 心律齐组ED为(3.40±0.73)mSv, 低于心律不齐组的(4.99±3.32)mSv, 差异有统计学意义(P<0.05)。结论 256排CT能够在保证图像质量的前提下完成任意心律的冠状动脉成像检查,但心律失常患者的ED略有增加。
- 冠状动脉CT血管成像 /
- 心律失常 /
- 心率 /
- 冠状动脉追踪冻结技术
Abstract: Objective To investigate the value of coronary angiography by 256-slice CT scanner in free rhythm of the heart. Methods One hundred and sixteen patients who underwent coronary artery examination were enrolled, 86 cases with regular heart rhythm were included in regular heart rhythm group, and 30 cases with arrhythmia were in arrhythmia group. All patients were performed coronary CT angiography(CCTA)by 256-slice CT scanner(Revolution CT)combined with snapshot freeze(SSF)technique. The quality of images, the effective dose(ED), average CT value and signal to noise ratio(SNR)were compared. Results There were no significant between-group differences in age, body mass, and heart rate of scanning(P>0.05), and the two assessors had higher consistence(Kappa=0.95). The CT value［(404.73±50.91)Hu in the regular heart rhythm group versus(386.23±60.25)Hu in arrhythmia group］and SNR ［(16.03±3.21)in the regular heart rhythm group versus(14.86±3.29 )in the arrhythmia group］ showed no significant differences between the two groups(P>0.05). The ED was(3.40±0.73)mSv in regular heart rhythm group, which was significantly lower than(4.99±3.32)mSv in the arrhythmia group(P<0.05). Conclusion 256-slice CT scanner could complete coronary artery scanning for patients with free rhythm while preserving good image quality using, but ED is increased in arrhythmia patients.
- CT coronary artery angiography /
- arrhythmia /
- heart rate /
- snapshot freeze of coronary artery

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参考文献(10)

周智美, 陈德基, 周志衡, 等. 320排动态容积CT在冠状动脉疾病中的临床应用研究[J]. 中国CT和MRI杂志, 2012, 10(4): 26-29.

金汉葵, 张凯, 邓宏亮, 等. 64排128层CT冠脉成像对心肌桥一壁冠状动脉的诊断价值[J]. 罕少疾病杂志, 2012, 19(4): 8-12.

LI Z N, YIN W H, LU B, et al. Improvement of image quality and diagnostic performance by an innovative motion-correction algorithm for prospectively ECG triggered coronary CT angiography[J]. PLoS One, 2015, 10(11): e0142796.

王怡宁, 金征宇, 孔令燕, 等. 双源CT冠状动脉成像的图像质量及重组时相与心率的关系[J]. 中华放射学杂志, 2008, 42(2): 119-122.

SHURYAK I, SACHS R K, BRENNER D J. Cancer risks after radiation exposure in middle age[J]. JNCI J Natl Cancer Inst, 2010, 102(21): 1628-1636.

KOPP A F, SCHROEDER S, KUETTNER A, et al. Coronary arteries: retrospectively ECG-gated multi-detector row CT angiography with selective optimization of the image reconstruction window[J]. Radiology, 2001, 221(3): 683-688.

马恩森, 马国林, 王武, 等. 低剂量64层螺旋CT前瞻性心电门控技术测量冠状动脉钙化积分的可重复性研究[J]. 实用放射学杂志, 2012, 28(1): 119-123.

罗银灯, 赵建农, 李杰, 等. 心率波动对16层CT冠脉成像图像质量的影响及对策[J]. 实用放射学杂志, 2007, 23(12): 1698-1702.

HONG C, BECKER C R, HUBER A, et al. ECG-gated reconstructed multi-detector row CT coronary angiography: effect of varying trigger delay on image quality[J]. Radiology, 2001, 220(3): 712-717.

于子川, 季倩, 黄黎香, 等. 活体肝移植婴幼儿腹部低剂量增强CT的最佳自适应统计迭代重组V迭代率研究[J]. 中华放射学杂志, 2017, 51(3): 192-196.