Date: August 7, 2024Source: Caltech / PNAS Nexus (Resonance Sonomanometry) A team at Caltech has developed a new method to measure true blood pressure continuously without needles. The technique is called resonance sonomanometry. It uses sound waves and ultrasound imaging to track blood pressure from an artery—without squeezing the arm like a cuff and without placing an invasive arterial line. In a small clinical study,…