A method of obtaining blood flow data from an individual using a Doppler blood flow meter system having a main unit in operative communication with a probe apparatus having at least one flat probe configured to be attached to the individual is disclosed. The flat probe has a substantially flat configuration and includes a transmitter transducer for transmitting ultrasound signals and a receiver transducer for receiving reflected Doppler ultrasound signals. The flat probe is configured for attachment to the individual being examined. At least one inflatable cuff in operative communication with the main unit is attached to the individual and the pressure in the inflatable cuff is raised such that the blood pressure of the individual is elevated. The main unit includes a processor that processes the reflected Doppler ultrasound signals received from the flat probe to determine the systolic pressure of the individual.
