'Aneurysm' 'Dilated artery' 'Narrowed artery' 'Stenosis'
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The main inclusion criterium for the patients is that they have an abdominal aortic aneurysm or a femoral artery or carotid artery stenosis. Furthermore, the patients should be under surveillance at the Catharina hospital for their stenosis or aneurysm. For the AAA patients, an additional inclusion criterium is that they are involved in the longitudinal study (research mentioned in B2). The volunteers should be in the age of 18-65 and not diagnosed with a cardiovascular disease.
Exclusion criteria
Exclusion criteria: Minors, incapacitated adults and mentally incompetent adults will not be included in the study. Subjects that do not want to participate will also not be included. Furthermore, also patients and volunteers that suffer from claustrophobia will be excluded from the study. Lastly, the patients and volunteers will be screened for metallic foreign bodies. In case that metallic foreign bodies are present the patients and volunteers will not be included in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Patient specific velocity profile over time and cross section of the abdominal aorta, carotid artery and femoral artery obtained with Ultrasound Doppler and compared with 4D flow MRI (abdominal aorta) or 2D PCMRI (femoral and carotid artery). This patient specific velocity profile will be used in FSI simulations of AAA's, carotid artery stenoses and femoral artery stenoses. | — |
Secondary
| Measure | Time frame |
|---|---|
| The secondary goal of this study is to validate the FSI model. With 4D flow MRI, the velocity streamlines can be constructed, which can then be compared to the streamlines from the FSI model. In addition, based on the velocity measured with 4D flow MRI, the Wall Shear Stress (WSS) and Oscillatory Shear Index (OSI) can be calculated, which can also be compared to the WSS and OSI as predicted by the FSI model. Also the with MRI measured wall displacements will be compared to the with FSI simulated wall displacements. Lastly, the 4D flow MRI data will also be used for the validation of the stiffness of the aortic wall. | — |
Countries
Netherlands