FC56锐利算法重建技术对冠状动脉CT造影图像的优化作用

doi:10.3969/j.issn.2095-9400.2019.08.002

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Abstract Objective: To investigate the improvement of coronary artery CT angiography (CCTA) images by using the filter function 56 reconstruction technique under 320-row CT. Methods: We compared the spatial resolution between the filter function 56 sharpness algorithm reconstruction (FR) images and the routine reconstruction (RR) images by scanning the Catphan 500 phantom. 55 patients with coronary heart disease who underwent invasive coronary angiography (ICA) and CCTA in the First Affiliated Hospital of Wenzhou Medical University were included in the study. The differences of the evaluation for the degree of coronary artery stenosis between FR and RR images were retrospectively analyzed. Results: The result of the phantom CT scan suggested that the spatial resolution of FR could reach 9l p/cm, and that of RR was just 7l p/cm. In 55 patients, 709 segments of the coronary segments were included in our study. With ICA as the gold standard, 159 stenosis segments were found in our study. The coronary stenosis score on the FR image was more accurate than the RR image. There was no significant difference between the results of FR and ICA (P>0.05), and the results of RR were statistically different from ICA (P<0.05). The coronary stenosis score of the FR image was highly consistent with the ICA results (Kappa≥0.8). For the stenotic coronary segments with the diameter less than 1.5 mm, although there was no statistically significant difference between the FR images and the RR images, the FR image was still highly consistent with ICA (0.6≤Kappa<0.8). Conclusion: The FR technique under 320-row CT can effectively improve the spatial resolution of the images and improve the diagnostic accuracy of the CCTA.

Key words： coronary CT angiography coronary angiography reconstruction technique spatial resolution

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	MAN Yi
	ZHENG Kuikui
	WANG Zhenzhang
	LI Na
	CHEN Weijian
	CAO Guoquan

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https://xb.wmu.edu.cn/EN/10.3969/j.issn.2095-9400.2019.08.002 OR https://xb.wmu.edu.cn/EN/Y2019/V49/I8/552

[1] 韩迎春, 樊刚, 曹文广, 等. 64层螺旋CT冠脉成像与DSA血管造影在疾病中诊断价值的比较分析[J]. 中国CT和MRI杂志, 2016, 14(1): 56-58, 98.
[2] 孙凯, 孙强. 冠脉CT血管造影诊断冠脉临界病变血管狭窄的临床价值[J]. 当代医学, 2018, 24(1): 70-72.
[3] HAMON M, MORELLO R, RIDDELL J W, et al. Coronary arteries: diagnostic performance of 16-versus 64-section spiral CT compared with invasive coronary angiography-meta-analysis[J]. Radiology, 2007, 245(3): 720-731.
[4] BUDOFF M J, DOWE D, JOLLIS J G, et al. Diagnostic performance of 64-multidetector row coronary computed tomographic angiography for evaluation of coronary artery stenosis in individuals without known coronary artery disease: results from the prospective multicenter ACCURACY (Assessment by Coronary Computed Tomographic Angiography of Individuals Undergoing Invasive Coronary Angiography) trial[J]. J Am Coll Cardiol, 2008, 52(21): 1724-1732.
[5] MILLER J M, ROCHITTE C E, DEWEY M, et al. Diagnostic performance of coronary angiography by 64-row CT[J]. N Engl J Med, 2008, 359(22): 2324-2336.
[6] CHOW B J, FREEMAN M R, BOWEN J M, et al. Ontario multidetector computed tomographic coronary angiography study: field evaluation of diagnostic accuracy[J]. Arch Intern Med, 2011, 171(11): 1021-1029.
[7] CURY R C. President’s page: coronary CT angiography as a gatekeeper to the catheterization laboratory[J]. J Cardiovasc Comput Tomogr, 2014, 8(6): 480-482.
[8] TANAMI Y, JINZAKI M, YAMADA M, et al. Improvement of in-stent lumen measurement accuracy with new high-definition CT in a phantom model: comparison with conventional 64-detector row CT[J]. Int J Cardiovasc Imaging, 2012, 28(2): 337-342.
[9] NASIS A, LEUNG M C, ANTONIS P R, et al. Diagnostic accuracy of noninvasive coronary angiography with 320-detector row computed tomography[J]. Am J Cardiol, 2010, 106(10): 1429-1435.
[10] 伊旭, 刘沛国, 韩燕, 等. 冠状动脉CTA技术在诊断冠脉病变中的最新进展[J]. 中国医疗设备, 2018, 33(1): 116-119.
[11] Mollet N R, Cademartiri F, van Mieghem C A, et al. High-resolution spiral computed tomography coronary angiography in patients referred for diagnostic conventional coronary angiography[J]. Circulation, 2005, 112(15): 2318-2323.
[12] FALCÃO J L, FALCÃO B A, GURUDEVAN S V, et al. Comparison between MDCT and grayscale IVUS in a quantitative analysis of coronary lumen in segments with or without atherosclerotic plaques[J]. Arq Bras Cardiol, 2015, 104(4): 315-323.
[13] 李庚, 高关心, 夏慧琳. CT空间分辨率和低对比度分辨率的检测及其影响因素[J]. 中国医疗设备, 2010, 25(1): 7-9.
[14] 张璞, 孙加宇, 李姣, 等. 医用CT体模对高对比度分辨力检测结果的影响[J]. 中国医疗设备, 2016, 31(11): 33-37, 49.
[15] DEKEMP R A, WELLS R G, RSB B. Lesion contrast recovery for partial-volume averaging: Quantitative correction or qualitative enhancement[J]. J Nucl Cardiol, 2018, 25(5): 1757-1759.