Hansen Medical View Institution's Website 1 article published in JoVE Bioengineering Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging Steven W. Hetts1, Maythem Saeed1, Alastair Martin1, Prasheel Lillaney1, Aaron Losey2, Erin Jeannie Yee1, Ryan Sincic3, Loi Do1, Lee Evans1, Vincent Malba1, Anthony F. Bernhardt1, Mark W. Wilson1, Anand Patel1, Ronald L. Arenson4, Curtis Caton5, Daniel L. Cooke1 1Department of Radiology and Biomedical Imaging, University of California, San Francisco, 2School of Medicine, University of California, San Francisco, 3Department of Radiology and Biomedical Imaging, UCSF Medical Center, 4University of California, San Francisco, 5Hansen Medical, Mountain View, CA Current applied to an endovascular microcatheter with microcoil tip made by laser lathe lithography can achieve controllable deflections under magnetic resonance (MR) guidance, which may improve speed and efficacy of navigation of vasculature during various endovascular procedures.