From:  Diagnostic modalities for ischemic heart disease: evaluating the role of stress echocardiography, cardiac CT, and myocardial perfusion scintigraphy in guiding coronary angiography

The relative economic, radiological, and environmental costs of cardiac imaging [30]

CostSEStress CMRStress PETStress SPECTCCTA
Economic cost13×10×4×2×
Radiologic cost (mSv)003104
Environmental cost from a single test (kg CO2)2200–300Not mentioned20–3020–30
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SE: stress echocardiography; CMR: cardiac magnetic resonance; PET: positron emission tomography; SPECT: single photon emission computed tomography; CCTA: coronary computed tomography angiography; mSv: millisievert (1 millisievert = 50 chest X-rays); CO2: carbon dioxide