Table 4.

Most Common Appropriate Use Criteria Indications Using Both the Electronic Health Record and the Pilot Clinical Decision Support Mechanism.

AUC Indication	Total Number of Exams for which Appropriateness Could be Determined (n=276)
No Known Coronary Artery Disease	133 (48.2%)
3 – Symptomatic; intermediate pre-test probability of CAD; ECG interpretable AND able to exercise	32 (11.6%)
58 – Follow-up testing: new or worsening symptoms; nonobstructive CAD on coronary angiography (invasive or noninvasive) OR normal prior stress imaging study	26 (9.4%)
12 – Other cardiovascular conditions; newly diagnosed systolic heart failure	21 (7.6%)
4 – Symptomatic; newly diagnosed systolic heart failure	11 (4.0%)
Known Coronary Artery Disease	143 (51.8%)
64 – Post-revascularization (PCI or CABG); evaluation of ischemic equivalent	101 (36.6%)
28 – Sequential testing (≤90 days): abnormal prior test/study); obstructive CAD on prior invasive coronary angiography	9 (3.3%)
58 – Follow-up testing: new or worsening symptoms; Nonobstructive CAD on coronary angiography (invasive or noninvasive) OR normal prior stress imaging study	9 (3.3%)
62 – Follow-up testing: new or worsening symptoms; obstructive CAD on invasive coronary angiography	8 (2.9%)

AUC = appropriate use criteria. CABG = coronary artery bypass grafting. CAD = coronary artery disease. ECG = electrocardiogram. PCI = percutaneous coronary intervention.