If the procedure is performed between two vertebrae, the interventional radiologist will insert a thin needle into the intervertebral disc under image guidance. If the procedure is performed on a disc in your neck, the entry point will be at the front or side of your neck, whereas if the disc being treated is lower down, the entry point will be in your back.
Under the guidance of ultrasound, X-ray or CT, the interventional radiologist will insert a needle through the skin and into the kidney and will then put a wire through the needle and insert the nephrostomy tube into the kidney over the wire.
Procedure is an excellent diagnostic tool used in aspiration of sample from the disc. This material is then sent to laboratory for culture and microscopy to identify the cause of disc disease.