Her area of expertise is Body CT.Dr. Johnson graduated from Harvard University in 1987 and earned her medical degree from Thomas Jefferson University in Philadelphia, PA in 1991. She completed her residency at The Johns Hopkins Hospital and performed a fellowship in ultrasound, computed tomography (CT), and magnetic image resonance imaging (MRI) at Jefferson University Hospital. Dr. Johnson joined the Johns Hopkins faculty in 2005.Her research interests include multidetector row CT.Dr. Johnson is a member of the Radiologic Society of North America, the American Roentgen Ray Society, the Association of University Radiologists, the Society of Abdominal Radiology and the American College of Radiology.