Nuffer Zachary, Rupasov Andrey, Bhatt Shweta
Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY.
Ultrasound Q. 2017 Sep;33(3):193-200. doi: 10.1097/RUQ.0000000000000298.
In the setting of mechanical circulatory support devices, including ventricular assist devices, extracorporeal membrane oxygenation, intraaortic balloon pumps, and the total artificial heart, the spectral Doppler waveform is significantly altered, reflecting systemic hemodynamic changes. As the prevalence of these devices increases, a better understanding of both the devices themselves and their associated Doppler ultrasound findings is necessary for accurate image interpretation. This article reviews the clinical indications, pathophysiology, and sonographic findings of these devices, with emphasis on the variation in arterial Doppler waveforms that can be seen with normal function, as well as the major complications.
在包括心室辅助装置、体外膜肺氧合、主动脉内球囊反搏泵和全人工心脏在内的机械循环支持装置的情况下，频谱多普勒波形会发生显著改变，反映出全身血流动力学变化。随着这些装置的普及率增加，为了准确解读图像，有必要更好地了解这些装置本身及其相关的多普勒超声检查结果。本文回顾了这些装置的临床适应证、病理生理学和超声检查结果，重点关注正常功能时可见的动脉多普勒波形变化以及主要并发症。
