Global performance of different evaluators using the CaRDIA-X®
algorithm
Agreement was in a range of 73.8% to 97.7% among the 4 operators. The
three evaluators with the highest performance were operators 2 (internal
medicine resident), 3 (cardiology resident), and 4 (electrophysiology
resident). Operator 1 (medical student) with the lowest level of
training had less agreement on the correct classification of the device.
This is shown in the Central Illustration (right panel).
Agreement for operators 2, 3, and 4 was greater than 90% for
manufacturers St. Jude Medical, Medtronic, and Boston Scientific. The
agreement to identify the manufacturer for operator 1 was lower for St.
Jude Medical devices. The agreement for all operators was lower in the
identification of the Biotronik manufacturer (Supplemental table 2).