PM me your private e-mail. If you will. If I can't get information to you, I will get my son over here to help. He is good on the PC. I did get directions from Doc and will give it a try.
If you have any doubt at all about this test, postpone it until you are satisfied that this is the direction you want to go in. Also ask your doctor in How many locations in your back he intends to investigate. I just don't read that much good about this test. I know you are in pain, and sometimes that drives us to do things that may not help. Seek the very best in Pain management, bring all your records with you. There is help available. Keep a pain journal, degree of pain, location, time, anything that makes it worse. Pain management doctors like it when you keep a good record of what is happening to you. ginnie