Augmented reality (AR) in operation theaters allows surgeons to find blood vessels under the skin accurately and quickly by overlaying scan images onto the patient, shows new study carried out by a team at Imperial College London published in European Radiology Experimental. AR allows the surgeon to see through the patient''s skin to study the underlying anatomy without making a single incision, thus bringing preoperative computed tomography (CT) angiography (CTA) information imaging to life.