This information is approved and/or reviewed by U-M Health System providers but it is not a tool for self-diagnosis or a substitute for medical treatment. You should speak to your physician or make an appointment to be seen if you have questions or concerns about this information or your medical condition. en Español | Complete disclaimer

UMHS Related Sites:
Cardiac Catheterization and Intervention Services
University of Michigan Cardiovascular Center

Invasive Physiologic Assessment

Invasive Physiologic Assessment is another cardiac catheterization procedure that is occasionally used to diagnose coronary artery disease when the results of angiography or of a stress test are uncertain. A small wire with a pressure transducer is advanced through the blockage in the coronary artery. The transducer allows measurement of pressures before and after the blockage in the artery. Large differences in pressures are indicative of a significant blockage that needs treatment