本文選題：冠心病 + 體層攝影術(shù)�。� 參考：《中華實(shí)用診斷與治療雜志》2016年01期

【摘要】：目的探討高心率超體質(zhì)量患者行冠狀動(dòng)脈CT血管造影時(shí)應(yīng)用前門(mén)控低kV收縮末期采集聯(lián)合迭代重建(sinogram affirmed iterative reconstruction,SAFIRE)技術(shù)對(duì)圖像質(zhì)量和輻射劑量的影響。方法行冠狀動(dòng)脈CT血管造影80例高心率超體質(zhì)量患者,隨機(jī)分為觀察組和對(duì)照組各40例,2組均采用前瞻性心電門(mén)控觸發(fā)序列進(jìn)行掃描,觀察組應(yīng)用前門(mén)控100kV聯(lián)合收縮末期35%~50%的R-R時(shí)間窗采集加SAFIRE重建;對(duì)照組應(yīng)用前門(mén)控120kV聯(lián)合30%~80%的R-R時(shí)間窗采集加常規(guī)濾過(guò)反投影(filtered back projection,FBP)重建。測(cè)量2組噪聲,計(jì)算信噪比,記錄劑量長(zhǎng)度乘積(dose length product,DLP),計(jì)算有效輻射劑量,比較2組圖像質(zhì)量。結(jié)果 80例患者1 164個(gè)冠狀動(dòng)脈節(jié)段中1 151個(gè)節(jié)段(98.88%)的圖像質(zhì)量可滿(mǎn)足診斷要求,其中觀察組578個(gè)節(jié)段中圖像質(zhì)量?jī)?yōu)+良好者549段(94.98%),對(duì)照組586個(gè)節(jié)段中圖像質(zhì)量?jī)?yōu)+良好者559段(95.39%),二者優(yōu)良率比較差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05);觀察組有效輻射劑量[(2.76±0.43)mSv]低于對(duì)照組[(7.68±0.86)mSv](P0.05),信噪比(21.69±5.65)、噪聲[(24.51±6.46)Hu]、圖像質(zhì)量評(píng)分[(3.48±0.32)分]與對(duì)照組[信噪比(19.54±4.46)、噪聲(22.35±5.27)Hu、圖像質(zhì)量評(píng)分(3.50±0.57)分]比較差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論高心率超體質(zhì)量患者行冠狀動(dòng)脈CT血管造影時(shí)應(yīng)用前門(mén)控100kV收縮末期采集聯(lián)合SAFIRE技術(shù)可獲得臨床滿(mǎn)意圖像,并可降低輻射劑量。
[Abstract]:Objective to investigate the effect of (sinogram affirmed iterative reconstruction and SAFIRE technique on image quality and radiation dose in patients with high heart rate superbody mass (HHR) undergoing coronary artery CT angiography (CAA). Methods 80 patients with high heart rate superbody mass were randomly divided into observation group and control group, 40 patients in each group were scanned by prospective electrocardiogram trigger sequence. In the observation group, 50% of R-R time window acquisition and SAFIRE reconstruction were used in the front door control 100kV combined with 35% of the late systolic phase, while in the control group, the former 120 kV plus 30% R-R time window acquisition and conventional filter backprojection (filtered back project were used to reconstruct the control group. Two groups of noise were measured, signal-to-noise ratio (SNR) was calculated, dose length product (dose length product DLP) was recorded, effective radiation dose was calculated, and the quality of two groups of images was compared. Results the image quality of 11151 segments (98.88%) of 11 164 coronary artery segments in 80 patients could meet the diagnostic requirements. There were 549 segments (94.98%) with good image quality in 578 segments in the observation group and 559 segments (95.39%) in the 586 segments in the control group. There was no significant difference in the excellent and good rate between the two groups (P0.05), and the effective radiation dose [(2.76 鹵0.43) mSv] in the observation group was lower than that in the control group (95.39%), and the effective radiation dose in the observation group [(2.76 鹵0.43) mSv] was lower than that in the control group. There was no significant difference between the control group [(7.68 鹵0.86) mSv] (P0.05), SNR (21.69 鹵5.65), noise (24.51 鹵6.46) Hu, image quality score (3.48 鹵0.32) and control group [SNR (19.54 鹵4.46), noise (22.35 鹵5.27) Hu, image quality score (3.50 鹵0.57)] (P0.05). Conclusion in patients with high heart rate superbody mass coronary artery CT angiography combined with SAFIRE can obtain satisfactory clinical images and reduce the radiation dose.
【作者單位】： 新疆醫(yī)科大學(xué)第一附屬醫(yī)院影像中心;
【基金】：新疆烏魯木齊市科學(xué)技術(shù)計(jì)劃項(xiàng)目(Y121320019)
【分類(lèi)號(hào)】：R816.2;R541.4

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 高玉杰;王杰;丁國(guó)成;羅曉燕;謝召勇;李雨奇;;體重指數(shù)適應(yīng)性電流、電壓結(jié)合前置門(mén)控技術(shù)對(duì)降低CCTA輻射劑量可行性的研究[J];臨床放射學(xué)雜志;2011年10期

2 佟海濱;趙青;范洋洋;馬云瑤;張民;薛超;汪平;石鳳祥;張振鵬;宋慶橋;方繼良;;第二代雙源CT前門(mén)控冠狀動(dòng)脈成像與冠狀動(dòng)脈造影比較的初步研究[J];中國(guó)中西醫(yī)結(jié)合影像學(xué)雜志;2012年04期

3 孫紅;王新江;惠萍;姚洪祥;王新明;;心電前門(mén)控冠狀動(dòng)脈CT成像在快心率患者中的應(yīng)用對(duì)策[J];中華老年心腦血管病雜志;2013年12期

4 張軍偉;石惠;牛媛媛;平學(xué)軍;;雙源64層CT前瞻性門(mén)控冠狀動(dòng)脈成像圖像質(zhì)量評(píng)價(jià)及影響因素控制[J];寧夏醫(yī)科大學(xué)學(xué)報(bào);2012年05期

5 張麗紅;李勇;趙艷玲;;前置門(mén)控冠狀動(dòng)脈CTCA低劑量成像技術(shù)的應(yīng)用價(jià)值[J];醫(yī)學(xué)影像學(xué)雜志;2014年07期

6 R.Iezzi;C.Di Stasi;R.Dattesi;F.Pirro;M.Nestola;A.Cina;倪鳴飛;;基于動(dòng)態(tài)ECG門(mén)控CTA的動(dòng)脈瘤頸近側(cè)血管搏動(dòng)變化與血管內(nèi)支架管徑選擇的研究[J];國(guó)際醫(yī)學(xué)放射學(xué)雜志;2011年05期

7 曹希明;黃美萍;鄭君惠;巫梓斌;溫孟皇;;前瞻性心電門(mén)控技術(shù)在256層CT冠狀動(dòng)脈成像中的應(yīng)用[J];放射學(xué)實(shí)踐;2012年06期

8 王娟;劉挨師;;最大限度減低64層螺旋CT前門(mén)控冠狀動(dòng)脈造影輻射劑量的研究進(jìn)展[J];中華臨床醫(yī)師雜志(電子版);2012年24期

9 宗會(huì)遷;付凱亮;宋鵬;柳青;張?chǎng)?馬利;李彩英;;心率及心率波動(dòng)對(duì)256層CT前瞻性門(mén)控冠脈成像質(zhì)量影響的研究[J];河北醫(yī)藥;2013年21期

10 邢桂榮;劉挨師;;100kV前門(mén)控CT冠脈造影圖像質(zhì)量與輻射劑量的分析[J];內(nèi)蒙古醫(yī)科大學(xué)學(xué)報(bào);2014年02期

相關(guān)會(huì)議論文 前5條

1 問(wèn)雷濤;姚果林;馮煒;楊歡;高艷妮;王晨;楊俊亞;姚曉群;楊廣夫;;256層螺旋CT前后門(mén)控冠脈成像輻射劑量的比較[A];中華醫(yī)學(xué)會(huì)第十八次全國(guó)放射學(xué)學(xué)術(shù)會(huì)議論文匯編[C];2011年

2 殷焱;馮琦;華佳;華小蘭;朱榮;趙穎;許建榮;;評(píng)估128層螺旋CT中低劑量后門(mén)控冠狀動(dòng)脈成像的圖像質(zhì)量和輻射劑量情況[A];中華醫(yī)學(xué)會(huì)第16次全國(guó)放射學(xué)學(xué)術(shù)大會(huì)論文匯編[C];2009年

3 李家俊;田月琴;何作祥;;門(mén)控心肌SPECT顯像生理因素對(duì)冠心病低度可能性患者心功能參數(shù)的影響[A];中華醫(yī)學(xué)會(huì)第九次全國(guó)核醫(yī)學(xué)學(xué)術(shù)會(huì)議論文摘要匯編[C];2011年

4 馮琦;殷焱;華小蘭;朱榮;華佳;;利用128排CT比較前門(mén)控及低劑量后門(mén)控技術(shù)對(duì)冠狀動(dòng)脈圖像質(zhì)量和放射劑量影響的初探[A];中華醫(yī)學(xué)會(huì)第16次全國(guó)放射學(xué)學(xué)術(shù)大會(huì)論文匯編[C];2009年

5 李錫雪;于鐵鏈;李東;萬(wàn)征;孫躍民;;心率及心率變異對(duì)前門(mén)控64層螺旋CT冠狀動(dòng)脈成像圖像質(zhì)量的影響[A];第十三次全國(guó)心血管病學(xué)術(shù)會(huì)議論文集[C];2011年

相關(guān)碩士學(xué)位論文 前2條

1 蔣志新;門(mén)控心肌灌注SPECT顯像左心功能測(cè)定的影響因素及臨床分析[D];北京協(xié)和醫(yī)學(xué)院;2011年

2 田叢娜;門(mén)控心肌灌注SPECT顯像及門(mén)控心肌代謝PET顯像評(píng)價(jià)左心室室壁瘤患者左心室功能的價(jià)值[D];北京協(xié)和醫(yī)學(xué)院;2013年

，

本文編號(hào)：2099622