Low-dose Gated CT Validity for the Evaluation of Ascendant Aortic Aneurysm.

Université de Sherbrooke

Status: Completed

Conditions: Ascendant Aortic Aneurysm

Treatments: Other: Modified Low-dose, EKG-gated CT without contrast for the evaluation of aortic aneurysm

Study type: Interventional

Funder types: Other

Identifiers

NCT03113539

2016-1074

Details and patient eligibility

About

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.

Full 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.

Enrollment: 66 patients

Sex: All

Ages: 60 to 100 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 60 years old and more
• 85 bpm or less

Exclusion criteria

• aortic material
• EKG gating not possible
• aorta pathology (thrombus, dissection)

Trial design

Primary purpose: Other

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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66 participants in 1 patient group

Subjects awaiting for an aortic evaluation

Experimental group

Description:

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.

Treatment:

Other: Modified Low-dose, EKG-gated CT without contrast for the evaluation of aortic aneurysm