Modified Dynamic Needle Tip Positioning vs Conventional Long-axis In-plane in Radial Artery Cannulation

Inclusion Criteria: 1. The diagnostic criteria of coronary atherosclerotic heart disease according to the tenth version of international Classification of diseases(ICD-10); 2. Requires invasive arterial blood pressure monitoring; 3. New York Heart Association(NYHA) classification I, II or III; 4. The American Society of Anesthesiologists (ASA) classification I, II or III; 5. Patients older than 18 years and younger than 85 years (Adult); 6. Patients signed the informed consent before the study. Exclusion Criteria: 1. Patients with hemodynamically unstable (systolic blood pressure 60 or less); 2. Patients with abnormal results of the modified Allen test; 3. Patients with ulnar artery occlusion; 4. Patients with coagulation disorders; 5. Patients with skin abnormalities such as inflammation or hematoma at the cannulation site; 6. Patients with raynaud disease and prevalent atherosclerosis; 7. Patients with history of hand or wrist trauma or surgery; 8. Patients who have undergone radial artery interventional therapy or radial artery cannulation within 3 months on the puncture side; 9. Patients with BMI more than 40 kg/m2; 10. Patients who have participated in other relevant clinical studies within 3 months.