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.
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 Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
66
On the same day, the subject will do : 1. Modified low-dose, EKG-gated CT without contrast 2. Usual high-dose, EKG-gated CT with contrast Comparing aortic diameters from the two protocols.
Sherbrooke University Hospital
Sherbrooke, Quebec, Canada
Measures validity (aorta diameter in mm from scan images)
Comparing aorta diameters from the two modalities.
Time frame: 12 months
Radiation (in msev from scanner report)
Comparing radiation exposure with the two modalities
Time frame: 12 months
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.