A medical measuring system, comprising: a medical sensor device configured to gather intravascular medical data from a patient; a processing system communicatively coupled to the medical sensor device and operable to receive the intravascular medical data from the medical sensor device, the processing system being further operable to transform the intravascular medical data into intravascular medical images representative of the patient; a touch-sensitive display; and a bedside controller communicatively coupled to the processing system and operable to receive the intravascular medical images from the processing system and display the intravascular medical images on the touch-sensitive display, the bedside controller being further configured to: receive, through the touch-sensitive display, a user measurement input on an intravascular medical image displayed on the display, the user measurement input including a start point (1000; 1102) on the intravascular medical image defined by a point of initial contact with the touch-sensitive display and an end point (1002; 1104) on the intravascular medical image defined by a point of last contact with the touch-sensitive display; select a measurement mode from a group of measurement modes consisting of a diameter measurement mode and an area measurement mode based on the user measurement input, wherein selecting the measurement mode includes: determining whether any of intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold; selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and selecting the area measurement mode if at least one intervening point falls outside of the boundary threshold; and calculate a measurement value associated with the user measurement input based on the selected measurement mode. a medical sensor device configured to gather intravascular medical data from a patient; a processing system communicatively coupled to the medical sensor device and operable to receive the intravascular medical data from the medical sensor device, the processing system being further operable to transform the intravascular medical data into intravascular medical images representative of the patient; a touch-sensitive display; and a bedside controller communicatively coupled to the processing system and operable to receive the intravascular medical images from the processing system and display the intravascular medical images on the touch-sensitive display, the bedside controller being further configured to: receive, through the touch-sensitive display, a user measurement input on an intravascular medical image displayed on the display, the user measurement input including a start point (1000; 1102) on the intravascular medical image defined by a point of initial contact with the touch-sensitive display and an end point (1002; 1104) on the intravascular medical image defined by a point of last contact with the touch-sensitive display; select a measurement mode from a group of measurement modes consisting of a diameter measurement mode and an area measurement mode based on the user measurement input, wherein selecting the measurement mode includes: determining whether any of intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold; selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and selecting the area measurement mode if at least one intervening point falls outside of the boundary threshold; and calculate a measurement value associated with the user measurement input based on the selected measurement mode. receive, through the touch-sensitive display, a user measurement input on an intravascular medical image displayed on the display, the user measurement input including a start point (1000; 1102) on the intravascular medical image defined by a point of initial contact with the touch-sensitive display and an end point (1002; 1104) on the intravascular medical image defined by a point of last contact with the touch-sensitive display; select a measurement mode from a group of measurement modes consisting of a diameter measurement mode and an area measurement mode based on the user measurement input, wherein selecting the measurement mode includes: determining whether any of intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold; selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and selecting the area measurement mode if at least one intervening point falls outside of the boundary threshold; and determining whether any of intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold; selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and selecting the area measurement mode if at least one intervening point falls outside of the boundary threshold; and calculate a measurement value associated with the user measurement input based on the selected measurement mode.