期刊文献+

个体化扫描预案的设定在256层CT冠状动脉造影中的应用 被引量:1

原文传递
导出
摘要 目的探讨在256层CT冠状动脉造影中个体化扫描预案设定的方法及其应用价值。方法将标准体重[18.5〈体质指数(BMI)〈23.9]患者根据心率分为3组设定扫描预案,即心率≤62次/min(bpm)32例,62 bpm〈心率〈72 bpm 45例,72 bpm≤心率〈90 bpm 37例。所有组探测器选择128×0.625,重建层厚0.9 mm,重建增量0.45 mm,管电压120 k V,管电流量700 m As。心率≤62 bpm时,Pitch选择0.18,机架旋转0.33s/圈,选择心动周期的75%重建;62 bpm〈心率〈72 bpm时,Pitch选择0.18,机架旋转0.27s/圈,选择心动周期的40%、45%、70%重建;心率≥72 bpm时,Pitch选择0.16,机架旋转0.27 s/圈,选择心动周期的40%、75%重建。造影剂总量(ml)=患者体重(kg),注射速率5~6 ml/s,同样速率追加注射22 m性理盐水。BMI〉24肥胖者,管电压120 k V,管电流量900 m As,Pitch选择0.16,机架旋转0.27 s/圈,选择心动周期的40%、45%、70%重建,造影剂注射速率6 ml/s,造影剂总量≤100 ml。BMI〈18.4者,管电压100 k V,管电流量500 m As,Pitch选择0.18,机架旋转0.27s/圈,选择心动周期的40%、45%、70%重建,造影剂总量(ml)=患者体重(kg),注射速率5 ml/s。由两位高年资医生比较不同心率组间及不同BMI间的图像质量,采用4分法对图像质量进行评分。结果心率≤62 bpm组、62 bpm〈心率〈72 bpm组和72 bpm≤心率≤90 bpm组图像优良率分别为100%、95.6%和89.2%;BMI〉24组图像优良率86.7%,BMI〈18.4组图像优良率87.5%。结论个体化扫描预案的设定在256层CT冠状动脉造影中具有良好的应用价值。
出处 《中国临床研究》 CAS 2015年第2期238-240,共3页 Chinese Journal of Clinical Research
  • 相关文献

参考文献14

  • 1Herzog BA, Husmann L, Burkhard N, et al. Accuracy of low-dosecomputed tomography coronary angiography using prospective elec-trocardiogram-triggering: first clinical experience [ J]. Eur Heart J,2008,29(24) :3037 -3042. 被引量:1
  • 2唐秉航,张晓东,李良才,李芳云,黄晖,黄德成.256层CT诊断冠状动脉狭窄与CCA对照分析[J].放射学实践,2011,26(11):1180-1184. 被引量:11
  • 3李长清,袁利,王振平,陈旺生,余宁,俞安伦.256层CT冠状动脉成像技术因素和辐射剂量的对比研究[J].海南医学,2013,24(11):1614-1616. 被引量:1
  • 4Klass 0, Walker M, Siebach A, et al. Prospectively gated axial CTcoronary angiography : comparison of image quality and effective radi-ation dosebetween 64-and 256-slice CT [ J]. Eur Radiol, 2010, 20(5):1124-1131. 被引量:1
  • 5Budoff MJ,Achenbach S,Blumenthal RS,et al. Assessment of coro-nary artery disease by cardiac computed tomography : a scientificstatement from the American Heart Association Committee on Cardi-ovascular Imaging and Intervention,Council on Cardiovascular Radi-ology and Intervention, and Committee on Cardiac Imaging, Councilon Clinical Cardiology [ J ]. Circulation, 2006 , 114 ( 16 ) : 1761-1791. 被引量:1
  • 6Walker MJ,Olzsewki ME,Desai MY,et al. New radiation dose savingtechnologies for 256-slice cardiac computed tomography angiography[J ]. Int J Cardiovasc Imaging, 2009,25 (2 Suppl) : 189 - 199. 被引量:1
  • 7Weigold WG’Olszewski ME,Walker MJ. Low-dose prospectively ga-ted 256-slice coronary computed tomographic angiography [ J ]. Int JCardiovasc Imaging,2009,25 (2 Suppl) :217 - 230. 被引量:1
  • 8张晓东,唐秉航,李芳云,李良才,黄晖,何亚奇,吴任国,黄德成,梁建雄,赖紫霞.心率对256层CT前瞻性心电门控冠状动脉成像质量的影响[J].放射学实践,2011,26(7):721-725. 被引量:16
  • 9Shiwaku K,Anuurad E,Enkhmaa B,et al. Appropriate BMI for Asi-an populations[ J] . Lancet,2004 ,363(9414) :1077. 被引量:1
  • 10高建华,王贵生,郑静晨,李剑颖,孙宪昶,高彩宏,戴汝平.体重指数在64层螺旋CT心脏扫描X线剂量管理中的应用研究[J].中华放射学杂志,2008,42(8):877-882. 被引量:25

二级参考文献68

共引文献64

同被引文献15

  • 1汪斌,刘志忠,张丰富.不同剂量冠状动脉造影剂对肾功能的影响[J].临床心血管病杂志,2007,23(10):794-795. 被引量:17
  • 2Herzog BA, Husmann L, Burkhard N, et al. Accuracy of low-dose computed tomography coronary angioga'aphy using prospective elec- trocardiogram-triggering: first clinical experience [ J ]. Eur Heart J, 2008,29 (24) :3037 - 3042. 被引量:1
  • 3Sodickson A, Baeyens PF, Andriole KP, et al. Recurrent CT, cumula- tive radiation exposure, and associated radiation-induced cancer risks from CT of adults[ J]. J Radiology,2009,251 ( 1 ) : 175 - 184. 被引量:1
  • 4Klass O, Walker M, Siebach A, et al. Prospectively gated axial CT coronary angiography : comparison of image quality and effective radi- ation dose between 64- and 256-slice CT[ J]. Eur Radiol,2010,20 (5) :1124 -1131. 被引量:1
  • 5Budoff M J, Chenbach S, Blumenthal RS, et al. Assessment of coro- nary artry disease by cardiac computed tomography: a scientific statement from the American Heart Association Committee on Cardi- ovascular Imaging and Intervention, Council on Cardiovascular Radi- ology and Intervention, and Committee on Cardiac Imaging, Council on Clinical Cardiology [ J ]. Circulation, 2006, 114 ( 16 ) : 1761 - 1791. 被引量:1
  • 6Herzog C, Aming Erb M, Zangos S, et al. Multi-detector row CT coro-nary angiography: influence of reconstruction technique and heart rate on image quality[ J]. Radiology ,2006,238 ( 1 ) :75 - 86. 被引量:1
  • 7McCollough C, Edyvean S, B Gould, et al. AAPM Report No. 96 : The measurement, reporting, and management of radiation dose in CT [ EB/OL]. (2008-01)https ://www. researchgate, net/publicatio~t/ 284673999_The_measurement_reporting_and management_of_radi-. 被引量:1
  • 8Marwan M, Mettin C, Pfledere T, et al. Very low-dose coronary artery calcium scaning with high-pitch spiral acquisition mode:comparison between 120-kV and 100-kV tube voltage protocols [ J ]. J Cardio- vasc Comput Tomogr,2013,7 ( 1 ) :32 - 38. 被引量:1
  • 9Tobias P, Larissa K, Dieter R, et al. Image quality in a low radiation exposure protocol for retrospectively ECG-gated coronary CT angiog- raphy [ J ]. A JR Am J Roentgenol, 2009,192 ( 4 ) : 1045 - 1050. 被引量:1
  • 10白桦,胡海波.MDCT冠状动脉CTA检查中辐射剂量的优化控制[J].中国医疗器械信息,2008,14(5):23-30. 被引量:9

二级引证文献9

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部