Devices, systems, and methods for evaluating a vessel of a patient are provided. The method includes outputting, to a touch-sensitive display of a bedside controller, a screen display including: a visual representation of a first pressure ratio of pressure measurements obtained by first and second instruments positioned within a vessel while the second instrument is moved from a distal position to a proximal position relative a stenosis and the first instrument remains stationary and a first proximal pressure waveform and a first distal pressure waveform receiving, through the touch-sensitive display of the bedside controller, a user touch input on the first proximal pressure waveform and/or the first distal pressure waveform identifying a time at which pressure measurements were obtained and modifying the screen display, in response to the user touch input, to further include a visual representation of the obtained pressure measurements corresponding to the identified time.
