brain mapping: functional MRI and DTI. Functional MRI (magnetic resonance imaging) is a noninvasive diagnostic test that measures small changes in blood flow as a person performs tasks while in the MRI scanner. Functional MRI detects the brain in action (e.g., speaking or moving).
Back injections may help treat two major back pain problems: radiculopathy and spinal stenosis. Doctors also use injections for other types of back pain. Sometimes, they also use them to help find out what's causing the pain. Radiculopathy refers to inflammation or damage to a nerve usually in the neck or the low back.
Steroid injections are useful for many types of arthritic conditions. Local steroid injections can be valuable treatment for patients with inflammatory types of arthritis such as rheumatoid arthritis, psoriatic arthritis, gout, and lupus.owever, the most common cause of these symptoms is a reaction to the injected steroid (âsteroid flareâ) which occurs in 2 to 5% of patients. A âsteroid flareâ usually begins 6-12 hours after the injection and may last for 2-3 days. Regardless of the cause, it is important to see a physician with these symptoms.