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Abstract #1210

MRI Assessment of the Arterio-Venous Fistula

Monica Sigovan1, Vitaliy Rayz1, Petter Dyverfeldt1, Warren Gasper2, Christopher Owens2, David Saloner1

1Radiology, UCSF, San Francisco, CA, United States; 2Vascular Surgery, UCSF, San Francisco, CA, United States

Local hemodynamic factors are one of the key elements that could help explain the high rate of failure of autogenous arterio-venous fistulas (AVF), access ports that are created in long terms dialysis patients. The aim of the work presented here was to develop an MRI protocol combined with computational fluid dynamics (CFD) simulations for the detailed assessment of the hemodynamic parameters of AVFs. Simulations were carried out on patient-specific geometries obtained by manual segmentation of 3D time of flight (TOF) data. The initial results show good promise in applying this protocol to a longitudinal study of AVF progression.