Institution: | (1) Clinic for Imaging and Intervention, Oslo University Hospital–Rikshospitalet, Sognsvannsvn 20, 0032 Oslo, Norway;(2) Department of Medical Physics, Oslo University Hospital–Rikshospitalet, Oslo, Norway;(3) The Interventional Centre, Oslo University Hospital–Rikshospitalet, Oslo, Norway;(4) Department of Neurosciences, University of California, San Diego, CA, USA;(5) Department of Radiology, University of California, San Diego, CA, USA;(6) Department of Physics, University of Oslo, Oslo, Norway |