The Effects of Use of Mirror Image on Radiation Exposure During Fluoroscopically Guided Transforaminal Epidural Injection

Lay the subject down on the stomach and hold the pillow on the stomach. The skin of the injection area is sterilized by aseptic method and covered with aseptic pouch. After confirming the level of he vertebrae around the C-arm and aligning the anteroposterior view of the endplate of the vertebral body, rotate the C-arm 20\~30 degrees diagonally in the direction to be performed. After confirming the best Scotty dog view, confirm the final target point at 6 o'clock directly below the pedicle. At this position, the skin point is marked on the skin. And then both groups proceed in parallel with the beam direction of the transducer with the tunnel view technique until the needle reaches the back of the vertebral body at the level of the spinal nerve roots. At this time group A uses a mirror and group B dose not. The final reach of the target point (ideal depth) is confirmed through the anterior and posterior views and lateral views.

A portable mirror is located at the side of surgical table and used in this procedure.