Southwest Diagnostic Imaging Center, leaders in outpatient radiology. We have been serving our referring physicians and patients since 1985 making SWDIC one of the most progressive freestanding outpatient imaging centers in North Texas. Our staff and technical team view the imaging process from the patient's perspective. We are committed to answering questions, providing results quickly and accurately, and easing the patient's tensions through compassionate care. Our state-of-the-art center is located on the Texas Health Presbyterian Hospital campus in Dallas, Texas.