Blood oxygen level dependent (BOLD) magnetic resonance imaging technique
to predict buttock claudication in patients undergoing endovascular abdominal
aorta aneurysm repair (EVAR) with coiling of the internal iliac artery

Endovascular aorta repair (EVAR) has become the treatment of first choice for
patients with an aneurysm of the abdominal aorta. In the Netherlands, approximately 3100 (75%) patients will be treated using the EVAR-procedure each year. Up to 20% of these patients have a concomitant aneurysm of the common iliac artery. For adequate prevention of the aneurysms, occlusion (by coiling or plug placement) of the ipsilateral internal iliac artery is required. Approximately, 30% of patients have long-term, persisting buttock claudication. No predictive tests exist to provide an adequate estimation of the risk of persisting buttock claudication after internal iliac artery occlusion. Our group developed (non-)invasive tests using blood oxygen level dependent (BOLD) magnetic resonance imaging (MRI) techniques. Within this study, feasibility for predicting buttock claudication using the different tests will be evaluated.

The blood oxygen level dependent MRI signal can be used to predict buttock claudication after coiling of the internal iliac artery

BOLD-parameters at day 1.
Questionnaires to score buttock claudication: Walking impairment questionnaire, vascular quality of life questionnaire, Questionnaire for objectifying buttock claudication answered at day 1, after 3 months and after 12 months

Inducing hypo, and hyperaemia in the gluteus maximus muscle by temporally occluding the internal iliac artery or by gluteus maximus muscle activation. The changing oxygen levels during both tests will be monitored using the BOLD MRI sequence