DEVICES, SYSTEMS, AND METHODS FOR DETECTING ANOMALOUS CARDIAC WAVEFORMS AND MAKING PHYSIOLOGIC MEASUREMENT CALCULATIONS
First Claim
1. A method of evaluating a vessel of a patient, comprising:
- collecting pressure data from an intravascular device positioned within the vessel of the patient, the pressure data including a pressure waveform for each cardiac cycle of the patient;
comparing the pressure waveform for each cardiac cycle of the patient to a reference pressure waveform to identify an anomalous pressure waveform; and
calculating a pressure ratio utilizing the pressure data from the intravascular device, wherein data from the anomalous pressure waveform is either excluded from the calculation or modified for use in the calculation.
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Abstract
Devices, systems, and methods automatically detecting anomalous waveforms and eliminating these waveforms from physiologic measurements are disclosed. For example, in some instances a method includes collecting a pressure data from an intravascular device positioned within the vessel of the patient, the pressure data including a pressure waveform for each cardiac cycle of the patient; comparing the pressure waveform for each cardiac cycle of the patient to a reference pressure waveform to identify an anomalous pressure waveform; and calculating a pressure ratio utilizing the pressure data from the intravascular device, wherein data from the anomalous pressure waveform is excluded from the calculation.
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Citations
20 Claims
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1. A method of evaluating a vessel of a patient, comprising:
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collecting pressure data from an intravascular device positioned within the vessel of the patient, the pressure data including a pressure waveform for each cardiac cycle of the patient; comparing the pressure waveform for each cardiac cycle of the patient to a reference pressure waveform to identify an anomalous pressure waveform; and calculating a pressure ratio utilizing the pressure data from the intravascular device, wherein data from the anomalous pressure waveform is either excluded from the calculation or modified for use in the calculation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for evaluating a vessel of a patient, comprising:
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at least one pressure-sensing intravascular device sized and shaped for positioning within the vessel of the patient; and a processing system in communication with the at least one pressure-sensing device, the processing system configured to; collect pressure data from the at least one pressure-sensing intravascular device, the pressure data including a pressure waveform for each cardiac cycle of the patient; compare the pressure waveform for each cardiac cycle of the patient to a reference pressure waveform to identify an anomalous pressure waveform; calculate a pressure ratio utilizing the pressure data from the intravascular device, wherein data from the anomalous pressure waveform is excluded from the calculation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification