This site is closed for renovation and expansion until Spring 2021. Welcome to ARA Diagnostic Imaging, Austin's oldest and largest diagnostic imaging group. ARA's board-certified radiologists have multiple subspecialties, including musculoskeletal, pediatric, neuroradiology, oncology, women's imaging, emergency radiology, interventional, neurointerventional surgery, body/cross-sectional, molecular radiology and more. Our roots go back to 1954, when Dr. Robert Snider began work as the first full-time radiologist at the original Seton Hospital. Today, the leaders and staff of ARA work in partnership with doctors to bring better health outcomes for our patients.