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Parameter Value Age (y) Mean ± SD 44.8 ± 11.6 Range 20–83 Sex Male 243 (50.7) Female 236 (49.3) Race African–American 290 (60.0) White 181 (37.7) Asian/Pacific 2 (0.4) Other 6 (1.3) Cardiovascular risk factors Dyslipidemia (known history) 55 (11.4) Hypertension 187 (39.1) Diabetes 61 (12.8) Smoking 283 (59.2) Family history of CAD 196 (41.0) Recent cocaine abuse 85 (17.9) Medication β-Blockers 11 (2.2) Calcium antagonist 33 (6.8) Nitrate 12 (2.6) Lipid-lowering agent 35 (7.3) Aspirin 17 (3.5) Values in parentheses are percentages.
False-negative MPI events Gated SPECT MPI findings Timing of injection PCI 3 d after MPI: LCx, 70% midvessel stenosis Normal perfusion and function CP resolved for >3 h PCI 3 d after MPI: LCx, 90% stenosis; LAD, 20% stenosis; RCA, 50% stenosis Normal perfusion and function CP resolved for 4 h NSTEMI on same day as MPI Normal perfusion and function CP resolved for 5 h LCx = left circumflex coronary artery; LAD = left anterior descending artery; RCA = right coronary artery; NSTEMI = non–ST-elevation myocardial infarction.