Skip to main content

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.