冠状动脉追踪冻结技术在前瞻性和回顾性心电门控下改善CTCA图像质量

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Abstract Objective: To assess snapshot freeze(SSF) motion correction algorithm for its value on image quality of computed tomography cornorary angiography(CTCA). Methods: Thirty patients underwent CTCA with prospective ECG-gating and 30 patients underwent CTCA with retrospective ECG-gating. Image quality and interpretability were compared between standard(STD) and SSF reconstructions algorithms. According to Likert 5-points score, score of every segment, branch and cases of patient were interpreted by two experienced radiologists. Results: Thirty patients underwent prospective ECG-gating CTCA and 30 patients underwent retrospective ECG-gating. In prospective ECG-gating group: SSF showed higher interpretability than STD on per-artery(97.8%(88/90) vs 87.8%(79/90), P=0.004) and per-segment level(99.1%(427/431) vs 96.1%(414/431), P=0.000). Image quality was higher with SSF than STD on per-patient(3.5±0.9 vs 2.9±1.2, P=0.004), per-artery(3.5±0.8 vs 3.1±1.0, P=0.000) and per-segment levels(3.7±0.8 vs 3.4±1.0, P=0.000). In retrospective ECG-gating group: SSF showed higher interpretability than STD on per-patient(80.0%(24/30) vs 53.3%(16/30), P=0.039), per-artery(90.0%(81/90) vs 71.1%(64/90), P=0.000), and per-segment levels(98.1%(413/421) vs 90.7%(382/421), P=0.000) of 45% R-R interval images. SSF showed higher interpretability than STD on per-artery(70.0%(63/90) vs 55.6%(50/90), P=0.02) and per-segment levels(82.7%(348/421) vs 78.4%(330/421), P=0.018). Image quality were higher with SSF than STD on per-patient(2.8±1.0 vs 2.1±1.2, P=0.013) (2.1±1.2 vs 1.6±1.0, P=0.026), per-artery(3.0±0.9 vs 2.4±1.0, P=0.000) (2.6±1.2 vs 2.2±1.2, P=0.000) and per-segment levels(3.3±0.9 vs 2.9±1.0, P=0.000) (2.9±1.2 vs 2.7±1.1, P=0.000) of 45% and 75% R-R interval images. Conclusion: SSF could improve the image quality and interpretability of CTCA with prospective and retrospective ECG-gating. Especially, SSF could improve the image quality on RCA by using the 45% R-R interval as the central phase with retrospective ECG-gating.

Key words： Tomography, spiral computed Coronary angiography

Received: 11 August 2015

PACS:	Ｒ814.42
	Ｒ814.43

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	ZHANG Ji-wang1
	FAN Li-juan1
	XU Dong-sheng1
	DONG Zhi1
	LI Xu1
	ZHANG Li-ren1
	YU Tie-lian2

Cite this article:

ZHANG Ji-wang1,FAN Li-juan1,XU Dong-sheng1, et al. Improving CTCA image quality by using snapshot freeze technique under prospective and retrospective ECG-gating[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(4): 252-256.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2016/V27/I4/252

[1]Achenbach S. Computed tomography coronary angiography[J]. J Am Coll Cardiol, 2006, 48(10): 1919-1928.
[2]Leschka S, Wildermuth S, Boehm T, et al. Noninvasive coronary angiography with 64-section CT: effect of average heart rate and heart rate variability on image quality[J]. Radiology, 2006, 241(2): 378-385.
[3]Hoffmann MH, Shi H, Manzke R, et al. Noninvasive coronary angiography with 16-detector row CT: effect of heart rate[J]. Radiology, 2005, 234(1): 86-97.
[4]Hirai N, Horiguchi J, Fujioka C, et al. Prospective versus retrospective ECG-gated 64-detector coronary CT angiography: assessment of image quality, stenosis, and radiation dose[J]. Radiology, 2008, 248(2): 424-430.
[5]中华放射学杂志心脏冠状动脉多排CT临床应用协作组. 心脏冠状动脉多排CT临床应用专家共识[J]. 中华放射学杂志，2011，45（1）：9-17.
[6]Leipsic J, Labounty TM, Hague CJ, et al. Effect of a novel vendor-specific motion-correction algorithm on image quality and diagnostic accuracy in persons undergoing coronary CT angiography without rate-control medications[J]. J Cardiovasc Comput Tomogr, 2012, 6(3): 164-171.
[7]Wykrzykowska JJ, Arbab-Zadeh A, Godoy G, et al. Assessment of in-stent restenosis using 64-MDCT: analysis of the CORE-64 Multicenter International Trial[J]. AJR, 2010, 194(1): 85-92.
[8]Bongartz G, Golding SJ, Jurik AG, et al. Appendix C: European guidelines for multislice computed tomography. Report no. EUR 16262 EN. Contract no. FIGM-CT2000-20078-CT-TIP[M]. Luxembourg: Office for Official Publications of the European Communities, 2004: 14.
[9]Nieman K, Rensing BJ, van Geuns RJ, et al. Non-invasive coronary angiography with multislice spiral computed tomography: impact of heart rate[J]. Heart, 2002, 88(5): 470-474.
[10]Kopp AF. Angio-CT: heart and coronary arteries[J]. Eur J Radiol, 2003, 45(Suppl 1): S32-S36.
[11]Knez A, Becker CR, Leber A, et al. Usefulness of multislice spiral computed tomography angiography for determination of coronary artery stenoses[J]. Am J Cardiol, 2001, 88(10): 1191-1194.
[12]Brodoefel H, Reimann A, Burgstahler C, et al. Noninvasive coronary angiography using 64-slice spiral computed tomography in an unselected patient collective: effect of heart rate, heart rate variability and coronary calcifications on image quality and diagnostic accuracy[J]. Eur J Radiol, 2008, 66(1): 134-141.
[13]范丽娟，孙凤伟. 冠状动脉追踪冻结技术对不控制心率受试者CT冠状动脉成像质量的影响[J]. 中华放射学杂志，2014，48（2）：105-108.
[14]Shreibati JB, Baker LC, Hlatky MA. Association of coronary CT angiography or stress testing with subsequent utilization and spending among Medicare beneficiaries[J]. JAMA, 2011, 306(19): 2128-2136.
[15]高建华，陈晓霞. 智能冠状动脉运动追踪平台Snapshot Freeze在冠状动脉CT血管成像中的应用[J]. 中国医学影像技术，2014，30（12）：1822-1826.