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Contrast enhanced MR pulmonary perfusion inmaging in diagnosis of pulmonary embolism
Author(s): WANG Hailin, XU Honggang, JIANG Xinqing
Pages: 33-
35
Year: 2006
Issue:
2
Journal: GUANGZHOU MEDICAL JOURNAL
Keyword: 磁共振成像; 肺灌注; 肺栓塞;
Abstract: 目的探讨磁共振增强扫描肺灌注成像技术(MRPP)与DSA对照诊断肺栓塞的临床应用价值.方法 18例肺栓塞患者,均行MRPP及DSA.通过在上、中、下肺野和异常区域内设置感兴趣区,测量信号强度,绘制时间-信号曲线,获取灌注峰值信号强度及灌注图像.结果 18例诊断肺栓塞的患者MRPP共发现55个肺灌注异常区,DSA显示66处肺栓塞.MRPP中,正常灌注与灌注缺损区及低灌注区的峰值信号强度差异有显著性意义(P<0.01).结论 MRPP能够显示肺栓寒的灌注缺损区和低灌注区,对肺栓塞诊断有较高的临床价值.
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