Fig. 3From: Clinical evaluation of augmented reality-based 3D navigation system for brachial plexus tumor surgeryComparison of questionnaire scores for the added value in preoperative planning and intraoperative navigation between conventional MRI images (blue) and AR-based 3D models (red). Surgeons were asked to measure the position error (cm) between 3D models and intraoperative findings (green) before re-registration during surgery. Middle lines indicate median valuesBack to article page