Patent ID: 11950884
Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system for evaluating a stenosis of a vessel of a patient, the system comprising:
a processing unit configured for communication with a pressure-sensing guide wire and a pressure-sensing instrument, wherein the processing unit is configured to:
receive proximal pressure measurements for a plurality of cardiac cycles of the patient from the pressure-sensing instrument;
receive distal pressure measurements for the plurality of cardiac cycles from the pressure-sensing guide wire, wherein the proximal pressure measurements and the distal pressure measurements are obtained without application of a hyperemic agent to the patient;
perform a pressure ratio calculation based on the proximal pressure measurements and the distal pressure measurements, wherein the pressure ratio calculation results in a plurality of pressure ratios corresponding to the plurality of cardiac cycles;
monitor the pressure ratio calculation to detect an anomaly impacting a cardiac cycle of the plurality of cardiac cycles;
automatically exclude a pressure ratio of the plurality of pressure ratios corresponding to the impacted cardiac cycle; and
output, to a display in communication with the processing unit, a pressure ratio indicator based on the plurality of pressure ratios other than the excluded pressure ratio.