A Low-dose Radiation and Contrast Agent Exposure Protocol for Coronary CTA in Diabetic Patients

Exclusion Criteria

• •patients with Iodine contrast agent contraindications (such as a history of severe allergy history with iodine contrast agents, hyperthyroidism, etc.)
• •patients with chronic kidney disease (Phase 4-5, eGFR \<30 ml/min/1.73 m2)
• •patients who have undergone coronary stent implantation or coronary artery bypass surgery
• •patients who have received iodine contrast-related tests within 24 hours
• •participated in other clinical trials within 3 months
• •other circumstances that the investigator believes are not suitable for participation in the trial