999精品在线视频,手机成人午夜在线视频,久久不卡国产精品无码,中日无码在线观看,成人av手机在线观看,日韩精品亚洲一区中文字幕,亚洲av无码人妻,四虎国产在线观看 ?

基于雙源CT不同成像技術對冠脈CTA的檢查效率和圖像質量的影響

2020-08-27 01:04:41龔萬灃敖煒群賈玉柱
中國醫藥導報 2020年19期

龔萬灃 敖煒群 賈玉柱

[摘要] 目的 探討基于雙源CT不同技術手段對冠脈CT血管造影(CTA)檢查效率和質量的影響。 方法 收集2018年6月~2019年10月在浙江省立同德醫院冠脈CTA患者107例,采用簡單隨機分組方法將其分為A組(55例,采用小劑量測試技術)及B組(52例,采用造影劑自動追蹤技術)。記錄兩組患者年齡、體重指數(BMI)、心率、輻射劑量及檢查時間,測量兩組患者圖像信噪比(SNR)、對比噪聲(CNR)及CT值,評價并比較兩組患者冠脈的圖像質量。結果 兩組患者年齡、BMI、心率、容積CT劑量指數、有效劑量、冠脈不同節段CT、主動脈根部及冠脈各節段SNR比較,差異無統計學意義(P > 0.05)。B組右冠遠段及回旋支遠段CNR優于A組,差異有統計學意義(P < 0.05)。兩組患者圖像質量評級比較,差異無統計學意義(P > 0.05)。B組檢查時間顯著短于A組,差異有高度統計學意義(P < 0.01)。 結論 造影劑自動追蹤技術能在保證圖像質量的前提下提高檢查效率。

[關鍵詞] CT血管造影技術;體層攝影技術;檢查效率;輻射劑量;圖像質量

[中圖分類號] R541.4 ? ? ? ? ?[文獻標識碼] A ? ? ? ? ?[文章編號] 1673-7210(2020)07(a)-0020-04

[Abstract] Objective To investigate the effects of different techniques based on dual-source CT on examination efficiency and quality of coronary CT angiography (CTA). Methods A total of 107 patients undergoing coronary CTA in Tongde Hospital of Zhejiang Province from June 2018 to October 2019 were collected, while they were divided into group A (55 cases, using low-dose test technology) and group B (52 cases, using contrast agent automatic tracking technology) by simple random grouping method. The age, body mass index (BMI), heart rate, radiation dose and examination time of the two groups were recorded, and the image signal-to-noise ratio (SNR), contrast noise (CNR) and CT values of the two groups were measured, while the coronary artery image quality were evaluated and compared. Results There were no significant differences in age, BMI, heart rate, volume CT dose index, effective dose, CT of different segments of coronary artery, SNR of aortic root and each segment of coronary artery between the two groups (P > 0.05). The CNR of distal right coronary artery and distal left circumflex artery in group B were superior to group A, and the differences were statistically significant (P < 0.05). There was no statistically significant difference in image quality ratings between the two groups (P > 0.05). The examination time of group B was significantly shorter than that of group A, and the difference was highly statistically significant (P < 0.01). Conclusion Contrast agent automatic tracking technology can improve the inspection efficiency under the premise of ensuring image quality.

[Key words] CT angiography; Tomography; Examination efficiency; Radiation dose; Image quality

隨著人口老齡化進程加速,中國心血管病危險因素流行趨勢明顯,導致心血管病發病人數持續增加[1]。冠脈CT血管造影(CTA)作為一項無創檢查,逐漸成為排除冠脈狹窄的首選檢查[2-4]。隨著檢查需求日益增長,患者行冠脈CTA檢查等待的時間延長。怎樣在保證圖像質量及輻射可控的前提下提高檢查效率,是當前面臨的主要問題。本研究基于雙源CT冠脈CTA,對不同技術進行比較,以期得到最佳解決方案。

本研究亦存在一些不足之處,缺少冠脈DSA“金標準”對照、沒有計入檢查前準備時間、樣本量相對較小,還需進行大樣本研究。

綜上所述,造影劑自動追蹤技術能夠在滿足圖像質量和輻射劑量可控的前提下縮短檢查時間,提高檢查效率。

[參考文獻]

[1] ?胡盛壽,高潤霖,劉力生,等.《中國心血管病報告2018》概要[J].中國循環雜志,2019,34(3):209-220.

[2] ?Sabarudin A,Sun Z,Ng KH. Coronary computed tomography angiography with prospective electrocardiography triggering:a systematic review of image quality and radiation dose [J]. Singapore Med J,2013,54(1):15-23.

[3] ?Nakazato R,Arsanjani R,Shalev A,et al. Diagnostic Accuracy,Image Quality,and Patient Comfort for Coronary CT Angiography Performed Using Iso-Osmolar versus Low-Osmolar Iodinated Contrast [J]. Acad Radiol,2016, 23(6):743-751.

[4] ?韓迎春,樊剛,曹文廣,等.64層螺旋CT冠脈成像與DSA血管造影在疾病中診斷價值的比較分析[J].中國CT和MRI雜志,2016,14(1):56-58,98.

[5] ?Hausleiter J,Meyer T,Hermann F,et al. Estimated radiation dose associated with cardiac CT angiography [J]. JAMA,2009,301(5):500-507.

[6] ?Hou Y,Zheng J,Wang Y,et al. Optimizing Radiation Dose Levels in Prospectively Electrocardiogram-Triggered Coronary Computed Tomography Angiography Using Iterative Reconstruction Techniques:A Phantom and Patient Study [J]. PLoS One,2013,8(2):e56295.

[7] ?Neefjes LA,Dharampal AS,Rossi A,et al. Image Quality and Radiation Exposure Using Different Low-Dose Scan Protocols in Dual-Source CT Coronary Angiography:Randomized Study [J]. Radiology,2011,3(3):779-786.

[8] ?中華醫學會放射學分會心胸學組,《中華放射學雜志》心臟冠脈多排CT臨床應用指南寫作專家組.心臟冠脈CT血管成像技術規范化應用中國指南[J].中華放射學雜志,2017,51(10):732-743.

[9] ?陳瑩.冠脈CTA對比劑注射延時掃描時間的優化[D].北京:首都醫科大學,2013.

[10] ?陳剛,凌志青,曾蒙蘇.64排螺旋CT冠脈成像三種預測增強延遲時間技術的比較研究[J].臨床放射學雜志,2011,30(5):735-737.

[11] ?李鋒坦,李東,張云亭.管電壓對CT值測量、輻射劑量及圖像質量影響的模型研究[J].中華放射學雜志,2013, 47(5):458-461.

[12] ?Ippolito D,Fior D,Franzesi CT,et al. Diagnostic accuracy of 256-row multidetector CT coronary angiography with prospective ECG-gating combined with fourth-generation iterative reconstruction algorithm in the assessment of coronary artery bypass:evaluation of dose reduction and image quality [J]. Radiol Med,2017,122(12):893-901.

[13] ?Zhao L,Yang X,Hao F,et al. Ultra-Low Radiation Dose and Contrast Medium of Coronary CT Angiography Using Prospectively ECG-Triggered Without Heart Rate Control:A New Strategy [J]. J Med Imaging Radiat Oncol,2017,7(8):1863-1869.

[14] ?周星,黃剛,張常青,等.雙源CT低管電壓結合低濃度對比劑掃描模式在冠脈CTA中的應用研究[J].醫學影像學雜志,2016,26(11):1980-1986.

[15] ?American College of Cardiology Foundation Task Force on Expert Consensus Documents,Mark DB,Berman DS,et al. ACCF/ACR/AHA/NASCI/SAIP/SCAI/SCCT 2010 expert consensus document on coronary computed tomographic angiography:a report of the American College of Cardiology Foundation Task Force on Expert Consensus Documents [J]. Circulation,2010,121(22):2509-2543.

[16] ?曹劍,易妍,王怡寧,等.70kV超低管電壓低對比劑用量冠脈CTA研究[J].放射學實踐,2014,29(6):589-592.

[17] ?Sabarudin A,Sun Z,Ng KH. Coronary computed tomography angiography with prospective electrocardiography triggering:a systematic review of image quality and radiation dose [J]. Singapore Med J,2013,54(1):15-23.

[18] ?Becker GR,Hong C,Knez A,et al. Optimal contrast application for cardiac 4-detector-row computed tomography [J]. Invest Radiol,2003,38(11):690-694.

[19] ?Cademartiri F,Mollet NR,Lugt A,et al. Intravenous Contrast Material Administration at Helical 16-Detector Row CT Coronary Angiography:Effect of Iodine Concentration on Vascular Attenuation [J]. Radiology,2005,236(2):661-665.

[20] ?黃元斌,張振宇,黃曉兵,等.多排螺旋CT冠脈血管造影診斷冠狀動脈狹窄的臨床價值[J].中外醫學研究,2018,16(11):50-52.

[21] ?陳華文,彭光明,陳楚欽,等.128層螺旋CTA在可疑急性冠脈綜合征診斷中的應用價值[J].中國醫學創新,2019,16(20):60-63.

[22] ?許麗君,陳晨,張桂敏.CT增強掃描中碘比醇造影劑不良反應的預防與護理[J].解放軍護理雜志,2017,34(20):75-76.

(收稿日期:2020-02-26)

主站蜘蛛池模板: 精品久久综合1区2区3区激情| 久久中文无码精品| 精品人妻一区无码视频| 都市激情亚洲综合久久| 国产9191精品免费观看| 成人小视频在线观看免费| 久久国产av麻豆| 国产激情在线视频| 18禁黄无遮挡网站| 91国内视频在线观看| 亚洲人成网18禁| 在线国产91| 无码中文字幕精品推荐| 色综合狠狠操| 2021国产精品自产拍在线| 亚洲品质国产精品无码| 黄片在线永久| 熟妇无码人妻| 91精品啪在线观看国产60岁| 91精品视频在线播放| 国产呦视频免费视频在线观看| 99久久亚洲综合精品TS| 黄色网址手机国内免费在线观看| 日本午夜视频在线观看| 亚洲a免费| 九九热视频精品在线| 欧美人人干| 就去色综合| 欧美午夜理伦三级在线观看| 国产高颜值露脸在线观看| 精品偷拍一区二区| 国产尹人香蕉综合在线电影 | 国产美女无遮挡免费视频网站 | 日韩不卡高清视频| 亚洲欧美不卡视频| yjizz视频最新网站在线| 伊人久久影视| 色综合天天综合中文网| 制服无码网站| 奇米精品一区二区三区在线观看| 成人在线亚洲| 国产小视频a在线观看| 国产91av在线| 在线va视频| 女人18毛片久久| 夜夜拍夜夜爽| 伊人色综合久久天天| 国产91无毒不卡在线观看| 国产导航在线| 欧美19综合中文字幕| 欧美精品亚洲二区| 久久综合亚洲鲁鲁九月天| 久久精品中文字幕少妇| 91福利免费| 国产无码制服丝袜| 极品国产在线| 免费播放毛片| 亚洲人成成无码网WWW| 天天躁狠狠躁| 2022国产无码在线| 88av在线看| 欧美成人午夜视频免看| 久久精品欧美一区二区| 亚洲第一福利视频导航| 精品无码日韩国产不卡av| 一本无码在线观看| 91精品情国产情侣高潮对白蜜| 国产精品xxx| 亚洲无码不卡网| 国产亚洲精品资源在线26u| 99热这里只有精品国产99| 99国产精品免费观看视频| 成人福利在线免费观看| 国内视频精品| 成人午夜视频网站| 99激情网| 亚洲国产精品日韩av专区| 久久夜色精品国产嚕嚕亚洲av| 国产在线精品99一区不卡| 在线无码九区| 秋霞一区二区三区| 国产乱子伦手机在线|