Coronary artery disease
Conditions
Interventions
Group A :Group A: The GE default ECG LESS scanning protocol under 100 kV was adopted (exposure phase: 200-800 ms). The images were reconstructed using adaptive statistical iterative reconstruction-V (
Group B:Group B: Under 100 kV, the patients' heart rates were measured via finger pulse. The data acquisition phase was set to 20%-90% of the R-R interval according to the measured heart rates. The im
Group C:Group C: Under 80 kV, the patients' heart rates were measured via finger pulse. The data acquisition phase was set to 20%-90% of the R-R interval according to the measured heart rates. The ima
Sponsors
GuiQian International Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Patients over the age of 18 who can tolerate the treatment and voluntarily participate in the study.
Exclusion criteria
Exclusion criteria: Patients with arrhythmia, atrial fibrillation, iodine contrast allergy, hyperthyroidism, heart failure, hepatic or renal insufficiency, or those unable to cooperate with the examination, or with severe image artifacts or calcification affecting data measurement.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Examination time, radiation dose (DLP, CTDIvol), contrast agent dose, vascular CT value, standard deviation (SD), signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) in the three groups of patients.; | — |
Countries
China
Contacts
Public ContactHe Chunyan
Guiqian International Hospital
Outcome results
None listed