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).