Ultrasound guidance for transforaminal percutaneous endoscopic lumbar discectomy may prevent radiation exposure: A case report

Figure 7 Lumbar spine magnetic resonance imaging before and after percutaneous endoscopic lumbar discectomy. A: Transverse section suggesting L3-4 disc herniation (white arrow, left margin type); B: Same section 1 day after percutaneous endoscopic lumbar discectomy (PELD) (black arrow indicates disappearance of the herniation); C: Transverse section suggesting L4-5 disc herniation (white arrow, left margin type); D: Same section 1 day after PELD (black arrow indicates disappearance of the herniation); E: Sagittal section suggesting L3-4 and L4-5 disc herniations (white arrows); F: Same section 1 d after PELD (black arrows indicate disappearance of the herniations).