A recent study conducted by Dr. Harry Kim, Chairman of IPSG and staff doctors and researchersat Texas Scottish Rite Hospital, looked at the use of an advancedMRI called perfusion MRI, a new diagnostic imaging testtodetermine revascularization of femoral heads of patients with Perthes disease. Revascularization is the return of blood flow to the femoral head

Perthes disease has four stages. The first stage, also known as the onset or necrosis stage, begins when the child first begins to limp and complain of pain. From the initial stage, the disease progresses as the body attempts to remove the damaged bone in order to begin new bone growth. The Perthes stages include: