期刊文献+

MR灌注成像在肺栓塞诊断中的应用 被引量:8

MR pulmonary perfusion in the diagnosis of experimental pulmonary embolism
原文传递
导出
摘要 目的 探讨MR二维快速扰相梯度回波序列 (2DFSPGR)显示肺实质灌注的可能性 ,以及在实验性肺栓塞中的应用价值。方法  11只在体犬肺栓塞模型在平静呼吸下行肺MR灌注扫描 ,定性及定量评价图像质量 ,与病理解剖对照分析肺灌注扫描诊断肺栓塞的敏感性。结果  10只犬的MR图像质量为优良 ,可显示肺实质灌注情况 ,平均信号 /噪声比 (SNR)为 6 7 4± 18 0 ,对比度 /噪声比(CNR)为 40 9± 14 2。正常灌注区的信号强度平均值为 39 7± 5 1,灌注不良区域信号强度平均值为15 6± 2 1,灌注不良区域时间 强度曲线表现为峰值下降或曲线平直。结论 MR肺灌注成像是诊断肺栓塞的可行方法。 Objective To probe into the feasibility of MR pulmonary perfusion (MRPP) and its value in diagnosis of acute pulmonary embolism (APE). Methods Eleven dogs with APE induced by autologous blood clots were examined using two-dimensional fast spoiled gradient echo sequence (2D FSPGR) without breath-hold. Images were assessed qualitatively and quantitatively. MR findings were compared with those of pathologic dissections. Results 10 sets of images were excellent or good. SNR was 67.4±18.0, CNR was 40.9±14.2. The average value of signal intensity was 39.7±5.1 in the district of normal perfusion,15.6±2.1 in the area of perfusion defect. Time-intensity curve of perfusion defect manifested as decreased peak intensity or flat curve.Conclusion MRPP with 2D FSPGR without breath-hold is a feasible method to diagnose APE.
出处 《中华放射学杂志》 CAS CSCD 北大核心 2001年第4期273-276,共4页 Chinese Journal of Radiology
关键词 肺栓塞 磁共振成像 诊断 实验研究 Pulmonary embolism Magnetic resonance imaging Animals,laboratory
  • 相关文献

参考文献1

二级参考文献3

共引文献13

同被引文献134

  • 1黄小勇,杜靖,张兆琪,郭曦,晏子旭,姜红,王伟.增强MR肺灌注扫描诊断肺动脉栓塞的初步研究[J].中华放射学杂志,2005,39(8):838-841. 被引量:10
  • 2吕维富.肺栓塞的影像学诊断与介入治疗[J].中国介入影像与治疗学,2006,3(1):74-76. 被引量:14
  • 3贾卫滨,张春秀,顼志敏.中国肺动脉栓塞误诊近四年文献分析[J].中华心血管病杂志,2006,34(3):277-280. 被引量:105
  • 4周旭辉,李菁,李子平,谭国胜,范淼,陈境弟.急性肺动脉栓塞的CT表现与疾病严重程度的关系[J].中华放射学杂志,2006,40(9):918-922. 被引量:18
  • 5李冲云.多排螺旋CT诊断肺动脉栓塞的临床价值[J].临床和实验医学杂志,2007,6(1):160-161. 被引量:4
  • 6Remy-Jardin M, Faivre JB, Pontana F, et al. Thoracic applications of dual energy[J]. Radiol Clin North Am, 2010, 48(1): 193-205.
  • 7Ghaye B, Ghuysen A, Bruyere PJ, etal. Can CT pulmonary angiography allow assessment of severity and prognosis in patients presenting with pulmonary embolism? What the radiologist needs to know [J]. Radiographics, 2006, 26(1): 23-39.
  • 8Araoz PA, Gotway MB, Trowbridge RL, et al. Helical CT pulmonary angingraphy predictors of in-hospital morbidity and mortality in patients with acute pulmonary embolism[J]. J Thorac Imaging, 2003, 18(4): 207-216.
  • 9Schoepf UJ, Kucher N, Kipfmueller F, et al. Right ventricular en largement on chest computed tomograpixy:a predictor of early death in acute pulmonary embolism[J]. Circulation, 2004, 110(20) : 3276 -3280.
  • 10Lim KE, Chan CY, Chu PH, et al. Right ventricular dysfunction secondary to acute massive pulmonary embolism detected by helical computed tomography pulmonary angiography[J]. Clin Imaging, 2005, 29(1): 16-21.

引证文献8

二级引证文献30

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