Abstract
Background
Endovascular iliac artery interventions rely on the use of two-dimensional digital subtraction angiographies with an iodinated contrast agent and ionizing radiation. The amount of iodinated contrast agent should be limited because of its potentially nephrotoxic effects. Three-dimensional (3D) image fusion requires registration of a preprocedural magnetic resonance angiogram (MRA) or computed tomography (CT) angiogram to a perprocedurally acquired cone-beam CT or two fluoroscopic orthogonal projections. After registration, the 3D angiography images can be overlaid on the fluoroscopy screen and will follow table and C-arm movements. This study will assess the added value of the 3D image fusion technique in iliac artery interventions regarding the amount of the iodinated contrast agent administered.
Methods/Design
The study cohort will comprise 106 patients (> 18 years) with symptomatic common and/or external iliac artery stenoses or occlusions and a recent (< 6 months) diagnostic MRA from the pelvis through the lower extremities, for which an endovascular intervention is indicated. Patients will be randomized into the control or study group (i.e. treatment without or with 3D image fusion guidance). The primary endpoint is the amount of administered iodinated contrast agent (mL). Secondary outcomes are technical success of the procedure, defined as < 30% residual stenosis over the treated lesion, fluoroscopy time, and radiation dose as dose area product (mGycm2). Patient participation in the study will be completed after hospital discharge.
Discussion
This study is a randomized controlled multicenter trial to provide evidence on the effect of the 3D image fusion technique on the amount of administered iodinated contrast during endovascular common and/or external iliac artery interventions.
Trial registration
Nederlands Trial Register, NTR5008. Registered on 16 December 2014.
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Details
; Heinen, Stefan G. H. 1 ; de Haan, Michiel W. 2 ; Sailer, Anna M. 3 ; van den Heuvel, Daniel A. F. 4 ; van Strijen, Marco J. 4 ; de Vries, Jean-Paul P. M. 5 1 St. Antonius Hospital, Department of Vascular Surgery, Nieuwegein, The Netherlands (GRID:grid.415960.f) (ISNI:0000 0004 0622 1269)
2 Maastricht University Medical Center, Department of Radiology, Maastricht, The Netherlands (GRID:grid.412966.e) (ISNI:0000 0004 0480 1382)
3 Stanford University School of Medicine, Department of Radiology, Stanford, USA (GRID:grid.168010.e) (ISNI:0000000419368956)
4 St. Antonius Hospital, Department of Radiology, Nieuwegein, The Netherlands (GRID:grid.415960.f) (ISNI:0000 0004 0622 1269)
5 University Medical Center Groningen, Department of Surgery, Division of Vascular Surgery, Groningen, The Netherlands (GRID:grid.4494.d) (ISNI:0000 0000 9558 4598)




