| 摘要 |
A system for detecting stenosis in a patient. The system includes an implantable sensing unit having a turbulence sensor and a communication device for transmitting a signal from the turbulence sensor. The system also includes a cardiac sensor for generating a signal corresponding to cardiac activity and a processing device configured to receive signals from the sensing unit and from the cardiac sensor. The processing device is configured to determine a time window corresponding to cardiac activity, to determine a turbulence level from the turbulence signal within the time window, and to detect the presence of stenosis from the turbulence level.
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