Dr. Ping-Sheng Lu is a radiologist with a specialization in interventional procedures. In recent years, due to advancements in pain management, he has gained experience in spinal injections, including epidural and intradisc procedures. Dr. Lu has also identified the critical role of disc injections in the treatment of low back pain. Throughout the development of disc injection techniques, he has accumulated significant insights regarding the differences between ultrasound-guided and fluoro-guided approaches. He will share the expirence and literature reviews of procedures for intervertebral discs.