低剂量联合迭代技术在喉部CT成像中的临床应用

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摘要目的：探讨低辐射剂量联合自适应迭代重建技术（ASiR）在喉部CT成像中的临床应用价值。方法：220例患者的喉部CT扫描分为两组：常规剂量滤波反投影重建组（FBP组）和低辐射剂量联合ASiR50%重建组（ASiR50%组），每组各110例。所有重建图像传送至AW 4.6工作站进行后处理，分别由3名影像医师采用双盲法对两组影像质量进行评价，采用t检验对两组辐射剂量及图像质量进行比较。结果：ASiR50%组显著降低了辐射剂量（P＜0.001），CTDIvol、DLP、Total DLP和mSv的降低率分别为80.22%（6.65/8.29）、82.95%（78.61/94.77）、82.95%（157.23/189.54）和83.04%（0.93/1.12）。FBP与ASiR50%组图像质量显示能力的比较差异无统计学意义（P＞0.05）。结论：低辐射剂量联合ASiR50%重建技术在保证图像质量的基础上，显著降低了辐射剂量。

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	张任华
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	何琛波

关键词 ：喉疾病, 体层摄影术, X线计算机

Abstract：Objective: To explore the clinical application value of low radiation dose with adaptive statistical iterative reconstruction(ASiR) technique in CT imaging of larynx. Methods: Larynx CT scans of 220 patients were classified into 2 groups: FBP group (underwent routine dose filtered back projection, FBP), and ASiR50% group(underwent low dose with ASiR50%), 110 cases each. The data of all patients were transmitted to the workstation(AW 4.6), and were evaluated by three doctors with double-blind method. A t test was used to compare 2 groups of radiation dose and image quality evaluated. Results: ASiR50% group could obtain reduced the radiation dose(P＜0.001). CTDIvol, DLP, Total DLP and mSv reduced the rate of 80.22%(6.65/8.29), 82.95%(78.61/94.77), 82.95%(157.23/189.54) and 83.04%(0.93/1.12). Between ASiR50% and FBP group, there was no statistically significant difference shows ability of image quality(P＞0.05). Conclusion: Low radiation dose with ASiR50% on the basis of guarantee the quality of image reconstruction technology can significantly reduce the radiation dose.

Key words： Laryngeal diseases Tomography, X-ray computed

收稿日期: 2016-12-05

PACS:	Ｒ767.1
	Ｒ814.42

通讯作者: 张任华，湖南省郴州市第一人民医院医学影像中心，423000。E-mail：renhua2269@sina.com

作者简介: 张任华（1971-），男，湖南资兴人，副主任技师。E-mail：renhua2269@sina.com

引用本文:

张任华，邓波红，龙江涛，黄和平，何琛波. 低剂量联合迭代技术在喉部CT成像中的临床应用[J]. 中国临床医学影像杂志, 2017, 28(8): 584-587.
ZHANG Ren-hua, DENG Bo-hong, LONG Jiang-tao, HUANG He-ping, HE Chen-bo. Clinical application of low dose with iterative technique in CT imaging of larynx. JOURNAL OF CHINA MEDICAL IMAGING, 2017, 28(8): 584-587.

链接本文:

http://www.jccmi.com.cn/CN/ 或 http://www.jccmi.com.cn/CN/Y2017/V28/I8/584

[1]Berrington de Gonzalez A, Darby S. Risk of cancer from diajnostic X-rays: estimates for the UK and 14 other countries[J]. Lancet, 2004, 363(3): 345-351.
[2]李琼，于红，张丽，等. 迭代重建技术对胸部低剂量CT图像质量影响的初步研究[J]. 中国医学计算机成像杂志，2014，20（2）：191-194.
[3]邓春兰，许顺良，肖圣祥，等. 迭代重建技术在低剂量肾动脉CT血管造影检查中的应用[J]. 中华放射医学与防护杂志，2014，34（2）：228-230.
[4]曾宪春，刘菊，韩丹，等. 80 kVp扫描联合基于原始数据的迭代重建技术在儿童副鼻窦CT检查中的应用[J]. 中国医学影像技术，2015，31（9）：1406-1409.
[5]张任华，邓波红，周海军，等. 迭代重建技术在肥胖病人肾上腺CT成像中的应用[J]. 国际医学放射学杂志，2016，39（5）：477-480.
[6]American Association of Physicists in Medicine(AAPM) Report 96. The Measurement, Reporting, and Management of Radiation Dose in CT[M]. New York: AAPM, 2008: 2398-2405.
[7]Schauer DA, Linton OW. National Council on Radiation Protection and Measurements report shows substantial medical exposure increase[J]. Radiology, 2009, 253(2): 293-296.
[8]Albert JM. Radiation risk from CT: implications for cancer screening[J]. AJR, 2013, 201(4): W81-87.
[9]王淑婷，任克. 腹部低剂量CT技术临床应用现状与研究趋势[J]. 国际医学放射学杂志，2015，38（6）：552-556.
[10]马晶晶，袁涛，全冠民. 低剂量CT肺动脉成像技术进展[J]. 国际医学放射学杂志，2015，38（6）：557-561.
[11]Hara AK, Paden RG, Sillva AC, et al. Iterative reconstruction technique for reducing body radiation dose at CT: feasibility study[J]. AJR, 2009, 193(6): 764-771.
[12]Laqmani A, Regier M, Veldhoen S, et al. Improved imaging quality and low radiation dose with hybrid iterative reconstruction with 80 kV CT pulmonary angiography[J]. Eur J Radiol, 2014, 83(9): 1962-1969.
[13]Co SJ, Mayo J, Liang T, et al. Itertive reconstructed ultra high pitch CT pulmonary angiography with cardiac bowtie-shaped filter in the acute setting: effect on dose and imaging quality[J]. Eur J Radiol, 2013, 82(7): 1571-1576.
[14]Entrikin DW, Leipsic JA, Carr JJ. Optimization of radiation dose reduction in cardiac computed tomographic angiography[J]. Cardiol Rev, 2011, 19(4): 163-176.