Is there a threshold for a good EndoPAT™ result?
Yes, the threshold for a good EndoPAT™ result is an RHI of 1.67 and above. The threshold of 1.67 was determined following the study of Bonetti et al(6) which was performed at the Mayo Clinic. In this study the EndoPAT™ was found to be correlated with the coronary endothelial function using the gold standard method of assessment which is injection of ACH during coronary catheterization. (6) Bonetti PO, Pumper GM, Higano ST, Holmes DR Jr., Kuvin JT, Lerman A. Noninvasive Identification of Patients with Early Coronary Atherosclerosis by Assessment of Digital Reactive Hyperemia.
