 And about 10 to 20% will develop end-stage renal disease within 10 years. Dr. Timlin says recognizing damage to the kidneys early on is vital, and it's usually done with a biopsy. She's excited about a new non-invasive way to track renal activity. From June this year, we will be starting our study on MRI of the kidneys. This is non-invasive, without contrast.