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Table 1 Inclusion and exclusion criteria

From: Comparison of coronary computed tomography angiography image quality with high- and low-concentration contrast agents (CONCENTRATE): study protocol for a randomized controlled trial

Inclusion criteria
• Adults at least 20 years old
• Subject who requested a coronary CT angiography to assess clinical disease
Exclusion criteria
• Subjects suspected of having myocardial infarction, unstable angina pectoris, or coronary artery disease
• Subjects who experienced heart attack within 40 days prior to the CT scan
• Subjects with a diagnosed complicated heart anomaly
• BMI > 35 kg/m2
• Serum creatinine ≥ 1.5 mg/dl
• Pregnant subjects
• Subjects with a history of hypersensitivity reaction to contrast agents
• Subjects with contraindications to the use of nitroglycerine
• Subjects who plan to participate or enroll in other randomized clinical trials for cardiovascular disease.
• Subjects with contraindications to the use of adenosine (e.g., bronchial asthma, 2–3 degree AV block, sick sinus syndrome, SBP less than 90 mmHg, recent prescribed history of dipyridamole, or hypersensitivity to adenosine)
  1. CT computed tomography, BMI body mass index, SBP systolic blood pressure