Comparison of Effectiveness and Safety between Intraoperative 3D-CT-Guided and C-Arm-Guided Percutaneous Balloon Compression for Idiopathic Trigeminal Neuralgia:  A  Multi-Center Retrospective Study

Figure 2

C-arm-guided FO puncture. (a) The needle penetrated the foramen ovale under lateral C-arm imaging; (b), (c) the balloon catheter was advanced into Meckel’s cave under direct C-arm fluoroscopy; (d, e) the balloon was slowly inflated with nonionic contrast agent (omnipaque) under fluoroscopic monitoring; (f) the shape of the balloon was confirmed to be pear-like on lateral C-arm imaging.

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(b)

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