TY - JOUR T1 - Navigation-Assisted Sclerotherapy of Orbital Venolymphatic Malformation: A New Guidance Technique for Percutaneous Treatment of Low-Flow Vascular Malformations JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1792 LP - 1795 VL - 25 IS - 10 AU - Ulrike Ernemann AU - Carsten Westendorff AU - Dirk Troitzsch AU - Jürgen Hoffmann Y1 - 2004/11/01 UR - http://www.ajnr.org/content/25/10/1792.abstract N2 - Summary: Percutaneous sclerotherapy of orbital low-flow vascular malformations requires precise procedural guidance. For the treatment of a patient with an orbital venolymphatic malformation, we sought to optimize guidance by combining navigation assistance for needle placement with intralesional contrast medium injection for assessment of venous drainage. By using a surgical navigation system (Vector Vision, BrainLAB, Munich, Germany), multiplanar target lesion visualization was performed after fusion of CT and MR imaging data, which allowed precise puncture planning. ER -