DEVICES, SYSTEMS, AND METHODS FOR ASSESSMENT OF VESSELS

摘要

Devices, systems, and methods for visually depicting a vessel and evaluating treatment options are disclosed. The methods can include introducing instruments into the vessel of a patient and obtaining proximal and distal pressure measurements of a stenosis of the vessel, calculating a pressure ratio based on the obtained proximal and distal pressure measurements, applying a correlation factor to the calculated pressure ratio to produce a predicted diagnostic pressure ratio, and displaying the predicted diagnostic pressure ratio to a user.

主权项

1. A method of evaluating a vessel of a patient, comprising:
introducing at least one instrument into the vessel of the patient; obtaining from the at least one instrument proximal pressure measurements from within the vessel at a position proximal of a stenosis of the vessel; obtaining from the at least one instrument distal pressure measurements within the vessel at a position distal of the stenosis of the vessel; calculating a pressure ratio for each cardiac cycle based on the average distal pressure measurement and the average proximal pressure measurement in the vessel of the patient during each cardiac cycle of the patient; applying a correlation factor to the calculated pressure ratio to produce a predicted diagnostic pressure ratio, and displaying the predicted diagnostic pressure ratio to a user.