Table 2.
Comparison of three recently published studies examining the use of stress echocardiography, cardiac PET and stress CMR in obese individuals.
| Variable | CMR study | PET study | Stress echocardiography study |
|---|---|---|---|
| Author/Year | Shah et al. (2014) (22) | Chow et al. (2014) (21) | Shah et al. (2016) (9) |
| n | 255 | 2687 | 209 |
| Entry criteria | BMI ≥30 kg/m2 | BMI ≥30 kg/m2 | BMI ≥35 kg/m2 |
| Stressor(s) used | Pharmacological only (adenosine/regadenoson) | Pharmacological only (exact stressors not listed) | Physiological and pharmacological (treadmill/dobutamine) |
| Mean (±s.d.) age | 56 | 60.0±12.1 | 59.2±11.6 |
| Male gender (%) | 101/255 (40) | 1246/2687 (46) | 93/209 (44) |
| Hypertension (%) | 171/255 (67) | 1986/2687 (74) | 166/209 (79) |
| Hyperlipidemia (%) | 150/255 (59) | 1820/2687 (68) | 138/209 (66) |
| Diabetes mellitus (%) | 82/255 (32) | 986/2687 (37) | 95/209 (45) |
| Mean BMI (kg/m2) | 34 | 36.8±6.3 | 39.3±4.6 |
| Feasibility (%) | 255/285 (89) | Not reported | 200/209 (96) |
| Need for sedation (%) | 19 (7%) | None | None |
| Median follow-up | 2.1 years | 2.4 years | 1.4 years |
| Annualized MACE rate after normal study (%) | 0.30 | 0.15 | 0.95 |
MACE, major adverse cardiac events.
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