Physiological sensor delivery device and method

A method comprising:

• inserting a sensor delivery device within an anatomical structure of a patient, wherein the sensor delivery device comprises first, second, and third sensors configured to measure a physiological parameter of the patient, wherein the first and second sensors are located a first fixed distance apart on the sensor delivery device, wherein the second and third sensors are located a second fixed distance apart on the sensor delivery device, and wherein the first fixed distance is different from the second fixed distance,
• positioning two sensors selected from the first, second, and third sensors respectively on a first side and a second side of a stenotic lesion in the anatomical structure so as to accommodate a length of the stenotic lesion between the two selected sensors, wherein all of the first, second, and third sensors are in proximity of the stenotic lesion;
• measuring, with one of the selected two sensors, the physiological parameter of the patient on the first side of the stenotic lesion during a diastolic phase of at least one cardiac cycle,
• measuring, with another one of the selected two sensors, the physiological parameter of the patient on the second side of the stenotic lesion during the diastolic phase of the at least one cardiac cycle,
• calculating a numerical value based on the physiological parameters measured by the selected two sensors;
• and
• providing the numerical value to evaluate the anatomical structure.