Table 1:

Performance per section

Test	Section 1: Physics, Instrumentation, Radionuclides, and Radiation Safety	p-value	Section 2: Acquisition and Quality Control, Gated SPECT, Artifact Recognition, and MUGA	p-value	Section 3: Test Selection, Stress and Nuclear Protocols Interpretation, Appropriate Use, and Risk Stratification	p-value	Section 4: Cardiac PET, Multimodality Imaging, Cardiac Amyloidosis, Cases with the Experts: PET and SPECT	p-value
GPT-4 (4)	63.0% (58.0% – 64.0%)	p< 0.001 (4 vs. G) p= 0.024 (4 vs. 4T) p< 0.001 (G vs. 4T) p< 0.001 (4o vs. 4T) p< 0.001 (4o vs. G) p< 0.001 (4o vs. 4)	44.4% (41.1% – 46.7%)	p= 0.877 (4 vs. G) p< 0.001 (4 vs. 4T) p< 0.001 (G vs. 4T) p= 0.306 (4o vs. 4T) p< 0.001 (4o vs. G) p< 0.001 (4o vs. 4)	67.5% (66.0% – 69.0%)	p< 0.001 (4 vs. G) p= 0.044 (4 vs. 4T) p< 0.001 (G vs. 4T) p< 0.001 (4o vs. 4T) p< 0.001 (4o vs. G) p< 0.001 (4o vs. 4)	58.0% (56.7% – 59.3%)	p< 0.001 (4 vs. G) p= 0.222 (4 vs. 4T) p< 0.001 (G vs. 4T) p< 0.001 (4o vs. 4T) p< 0.001 (4o vs. G) p< 0.001 (4o vs. 4)
Gemini (G)	38.0% (36.0% – 40.0%)		42.2% (41.3% – 43.2%)		40.0% (37.5% – 42.5%)		45.5% (44.3% – 46.6%)
GPT-4 Turbo (4T)	62.0% (61.2% – 62.8%)		53.3% (51.1% – 55.6%)		68.8% (67.5% – 70.0%)		57.6% (56.1% – 60.6%)
GPT-4o (4o)	73.0% (71.2% – 74.9%)		55.6% (54.2% – 56.9%)		60.0% (57.4% – 62.5%)		63.6% (62.2% – 65.0%)

^*Values are presented as median percentiles and 95% confidence intervals of 30 attempts at the exam. SPECT - single photon emission computed tomography; PET - positron emission tomography; MUGA - multiple-gated acquisition