St. Jude Medical Inc. announced the U.S. clearance and launch of the company’s new PressureWire X Guidewire fractional flow reserve (FFR) measurement system. The latest generation of the PressureWire Guidewire system is designed to offer improved shapeability and better shape retention aimed at reducing vessel trauma, with the accuracy and simplicity physicians expect when treating patients during percutaneous coronary intervention (PCI), especially those with complex anatomies.