Have you used POCUS with color power Doppler to assess blood pressure in a patient whose cuff readings are in doubt?

Thank you for bringing up this question, as it focuses on a POCUS topic I often think about. I will split my assessment into two categories: clinical utility and physiologic limitations, with a brief EBM note at the end.

Clinical Utility

While the referenced study suggests this technique is feasible, I do NOT recommend POCUS as a tool for blood pressure (BP) measurement in clinical practice. The method described is essentially a high-tech version of a 'palpatory' BP, where the return of a radial pulse during cuff deflation is visualized via Color Power Doppler (CPD) rather than felt by hand. CPD has a lower framerate, which leads to temporal lag. By the time the "power" signal processes and fills the vessel on the screen, the cuff may have ...