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(shù)對冠脈CTA的檢查效率和圖像質(zhì)量的影響

2020-08-27 01:04:41龔萬灃敖煒群賈玉柱
中國醫(yī)藥導(dǎo)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(shù)手段對冠脈CT血管造影(CTA)檢查效率和質(zhì)量的影響。 方法 收集2018年6月~2019年10月在浙江省立同德醫(yī)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(shù))及B組(52例,采用造影劑自動追蹤技術(shù))。記錄兩組患者年齡、體重指數(shù)(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(zhì)量。結(jié)果 兩組患者年齡、BMI、心率、容積CT劑量指數(shù)、有效劑量、冠脈不同節(jié)段CT、主動脈根部及冠脈各節(jié)段SNR比較,差異無統(tǒng)計學(xué)意義(P > 0.05)。B組右冠遠(yuǎn)段及回旋支遠(yuǎn)段CNR優(yōu)于A組,差異有統(tǒng)計學(xué)意義(P < 0.05)。兩組患者圖像質(zhì)量評級比較,差異無統(tǒng)計學(xué)意義(P > 0.05)。B組檢查時間顯著短于A組,差異有高度統(tǒng)計學(xué)意義(P < 0.01)。 結(jié)論 造影劑自動追蹤技術(shù)能在保證圖像質(zhì)量的前提下提高檢查效率。

[關(guān)鍵詞] CT血管造影技術(shù);體層攝影技術(shù);檢查效率;輻射劑量;圖像質(zhì)量

[中圖分類號] R541.4 ? ? ? ? ?[文獻標(biāo)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(dǎo)致心血管病發(fā)病人數(shù)持續(xù)增加[1]。冠脈CT血管造影(CTA)作為一項無創(chuàng)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(zhì)量及輻射可控的前提下提高檢查效率,是當(dāng)前面臨的主要問題。本研究基于雙源CT冠脈CTA,對不同技術(shù)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(biāo)準(zhǔn)”對照、沒有計入檢查前準(zhǔn)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(shù)能夠在滿足圖像質(zhì)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(huán)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(yī)學(xué)會放射學(xué)分會心胸學(xué)組,《中華放射學(xué)雜志》心臟冠脈多排CT臨床應(yīng)用指南寫作專家組.心臟冠脈CT血管成像技術(shù)規(guī)范化應(yīng)用中國指南[J].中華放射學(xué)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(yōu)化[D].北京:首都醫(yī)科大學(xué),2013.

[10] ?陳剛,凌志青,曾蒙蘇.64排螺旋CT冠脈成像三種預(yù)測增強延遲時間技術(shù)的比較研究[J].臨床放射學(xué)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(zhì)量影響的模型研究[J].中華放射學(xué)雜志,2013, 47(5):458-461.

[12] ?Ippolito D,F(xiàn)ior D,F(xiàn)ranzesi 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(jié)合低濃度對比劑掃描模式在冠脈CTA中的應(yīng)用研究[J].醫(yī)學(xué)影像學(xué)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(xué)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(yī)學(xué)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(yīng)用價值[J].中國醫(yī)學(xué)創(chuàng)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(yīng)的預(yù)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: 国产亚洲成AⅤ人片在线观看| 伊人色在线视频| 91精品国产综合久久不国产大片| 精品综合久久久久久97超人| 伊人成人在线视频| 欧美高清三区| 亚洲最黄视频| 色有码无码视频| 国产一区免费在线观看| 国产精品偷伦在线观看| 中文字幕第4页| 久久黄色视频影| 青青久久91| 久久综合伊人 六十路| 欧美α片免费观看| 91成人免费观看在线观看| 无码福利日韩神码福利片| 日韩无码视频专区| a级免费视频| 免费看一级毛片波多结衣| 97视频在线精品国自产拍| 老司机久久99久久精品播放| 亚洲日韩国产精品无码专区| 国产成人在线无码免费视频| 久久免费视频播放| 精品一区二区三区中文字幕| 国产农村妇女精品一二区| 国产xxxxx免费视频| 久久久久久尹人网香蕉| 亚洲综合极品香蕉久久网| 久久99蜜桃精品久久久久小说| 免费va国产在线观看| 国产精品第| 97视频精品全国免费观看| 国产18页| 日本影院一区| 一级爆乳无码av| 麻豆精品在线视频| lhav亚洲精品| 亚洲欧美精品一中文字幕| 国产一区二区人大臿蕉香蕉| 国产乱码精品一区二区三区中文| 永久免费精品视频| 国产成人免费观看在线视频| 中文字幕免费在线视频| 欧美日韩成人在线观看 | 亚洲人成影视在线观看| 米奇精品一区二区三区| 五月天香蕉视频国产亚| 制服丝袜在线视频香蕉| 精品无码一区二区在线观看| 人妻无码AⅤ中文字| 91精品国产91久无码网站| 欧美a√在线| 91在线播放免费不卡无毒| 免费在线观看av| 四虎国产永久在线观看| 欧美色综合网站| 欧美在线免费| 极品私人尤物在线精品首页| 亚洲最大看欧美片网站地址| 无码一区中文字幕| 青青草国产免费国产| 国产va欧美va在线观看| 国产国语一级毛片在线视频| 亚洲午夜18| 国产无吗一区二区三区在线欢| 亚洲黄色视频在线观看一区| 99这里只有精品在线| 中文字幕有乳无码| 欧美人在线一区二区三区| 国产在线自揄拍揄视频网站| 亚洲另类色| 国产极品粉嫩小泬免费看| 中日韩欧亚无码视频| 中文字幕色在线| av色爱 天堂网| 久久不卡精品| 久久精品波多野结衣| 欧美一区二区丝袜高跟鞋| 日韩福利视频导航| 五月婷婷导航|