title: A recording spectrograph for analysing Doppler blood velocity signals (particularly from aortic flow) in real time.
mesh_terms: D001011:Aorta / Q000502:physiology; D001783:Blood Flow Velocity / Q000295:instrumentation*; D004562:Electrocardiography; D004576:Electromyography; D006801:Humans; D008722:Methods; D013057:Spectrum Analysis / Q000295:instrumentation*