in vivo Active Visualization of an Ablation Guidewire for the Revascularization of Occlusive Arterial Disease

Kevan Anderson¹, Nicolas Yak¹, Labonny Biswas¹, Jennifer Barry¹, Graham Wright¹, ²

Studies investigating the use of MRI for lesion revascularization have focused on the development of specialized active catheters and guidewires that incorporate receive coils to enable device visualization. There are many engineering challenges associated with this approach and the added complexity will typically limit device performance. In this study we evaluate the ability to actively visualize a commercially available radio-frequency ablation guidewire in an animal model of occlusive arterial disease. The selected technique utilizes an external coupling device that is magnetically coupled to the guidewire and the capacity to visualize the guidewire in vivo is demonstrated.