A new system for 3D ultrasound-guided placement of cerebral ventricle catheters. - Ingerid Reinertsen; Asgeir S. Jakola; P. Friderichsen; Frank Lindseth; Ole Solheim; Tormod Selbekk; Geirmund Unsgård (Int. J. Comput. Assist. Radiol. Surg., 2012)