Objective: To build the radio-frequency thermocoagulation( RFT) interface under navigation including foramen ovale and trigeminal ganglion based on CT /MRI image fusion technology,to visualize the relationship between the trigeminal ganglion and the puncture needle,and to observe clinical effects of this method. Methods: CT and MRI data of 20 trigeminal neuralgia patients which were input into BrainLAB-iPlan navigation planning system,were aligned and merged,so that the 3-dimentional image fusion interface ...