Low-dose, EKG-gated CT Validity for the Evaluation of Ascendant Aortic Aneurysm.
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Université de Sherbrooke
- Enrollment
- 66
- Locations
- 2
- Primary Endpoint
- Measures validity (aorta diameter in mm from scan images)
Study Overview
Brief Summary
We will demonstrate the validity of measurements with a low-dose, EKG-gated CT without contrast in the ascending aorta evaluation, compared with the current Angio-CT measurements.
Detailed Description
The actual protocol used in aorta evaluation consist of two CT-scans on the same study. The first scan that detects calcifications is using parameters with low-dose current, non EKG-gated and without contrast. The second scan uses iodine-contrast, EKG-gating and higher current dose to obtain higher image quality of diagnostic value.
The study will optimize the first scan parameters and compare the measures of the aorta diameters from the standard protocol.
By modifying the first scan parameters, we would demonstrate that the follow-up of an aortic aneurysm can safely be made with lower radiation exposure.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Other
- Masking
- None
Eligibility Criteria
- Ages
- 60 Years to 100 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •60 years old and more
- •85 bpm or less
Exclusion Criteria
- •aortic material
- •EKG gating not possible
- •aorta pathology (thrombus, dissection)
Arms & Interventions
Subjects awaiting for an aortic evaluation
Subjects already waiting for an aortic evaluation, either a first diagnostic scan or follow-up of a known aneurysm.
Each subjects will have the two CT-scans on the same day.
Intervention: Modified Low-dose, EKG-gated CT without contrast for the evaluation of aortic aneurysm (Other)
Outcomes
Primary Outcomes
Measures validity (aorta diameter in mm from scan images)
Time Frame: 12 months
Comparing aorta diameters from the two modalities.
Secondary Outcomes
- Radiation (in msev from scanner report)(12 months)
Investigators
Paul Farand
MD, FRCPC, Professeur agréé, Directeur du service de cardiologie
Université de Sherbrooke