频谱多普勒 （ spectral Doppler ）：连续波多普勒信号强度可以反映返流程度，其强度与超声束照射范围内的移动着的红细胞数目呈比例，红细胞数目越多信号越强，返...
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频谱多普勒对二尖瓣球囊瓣膜成形术47例的疗效评价_医网打尽文献搜索 关键词：频谱多普勒；心导管技术；二尖瓣球囊瓣膜成形术 [gap=1003]Keywords：spectral doppler-echo; cardiac catheterization; mitral balloon
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...仔 细观察血流信号丰富程度、血流分布形态及分布部位，取血管最丰富的断 面进行频谱多普勒( Pu l s e Wa v e Do p p l e r ，PWD) 取样。
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Conclusion Pressure detected by spectra doppler was a little overestimated,but it had a high associativity with right heart catheterization measured in the study,it could be made use of clinic generally.
结论频谱多普勒测值稍高估肺动脉压,但和右心导管测值有很好的相关性,可广泛应用于临床工作中。
参考来源 - 频谱多普勒评估左向右分流先天性心脏病患者肺动脉压的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
频谱多普勒显示狭窄近段血流速度增高，远段流速减低。
Spectrum Doppler showed increased blood flow velocity in the proximal stenosis, and distal flow reduction.
二尖瓣关闭不全程度用频谱多普勒测定的有效返流口面积确定。
Mitral insufficient grades were determined by the effective regurgitant orifice area measured with spectral Doppler.
目的探讨彩色及频谱多普勒技术在诊断下肢动脉闭塞性疾病的价值。
Objective To explore the value of color Doppler ultrasonography in diagnosis of arterial occlusion disease in lower limbs .
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