About this trial
This is a single-center, comparative, observational, retrospective data study. Datasets from patients who underwent spectral coronary CT angiography (CCTA) for suspected coronary artery disease (CAD) or other diagnosis needs as part of their routine clinical evaluation will be included.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Datasets from Patients who underwent spectral coronary CT angiography (CCTA).
Datasets from study participants with age ≥ 18 years old.
Scan parameters that meet the criteria defined in the 5.4.3.
Disqualifiers
The clinical data information is considered incomplete after evaluation by the investigator.
The investigator determined that poor image quality (e.g. obvious artifacts, missing critical scan layers) would not satisfy post-processing analysis.
Data of patients deemed inappropriate for inclusion after evaluation by the investigator.
Trial population
Patients completed CCTA scan aged 18.
Trial design
Case-control
Retrospective
Treatments tested in this trial
Non-Interventional Study
DeviceThis is an observational study
Non-Interventional Study
DeviceThis is an observational study
Treatment groups
Trial outcomes
Primary outcomes
Subjective Image quality using 5 Liket-scale (1-5)
The subjective image quality will be assessed by 2 radiologists using Liket-scale on a range from 1(poor) to 5(Excellent).
Secondary outcomes
Objective image quality
The objective image quality will be evaluated by measuring the CT value shown in the image.
Sponsors and contacts
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Philips Clinical & Medical Affairs Global
Lead sponsor
The First Affiliated Hospital of Zhengzhou University
Collaborator
This trial is not recruiting at the moment. You can still explore other options: