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Monitoring spinal curvature in adolescent kyphoscoliosis requires regular radiographic examinations; however, the applied ionizing radiation increases the risk of cancer. Ultrasound imaging is favorable over X-ray because it does not emit ionizing radiation. Therefore, we tested an ultrasound system for spinal curvature measurement, with the help of spatial tracking of the ultrasound transducer. Tracked ultrasound … Continue Reading ››

Computerized navigation improves the accuracy of minimally invasive pedicle screw placement during spine surgery. Such navigation, however, exposes both the patient and the staff to radiation during the surgery. To avoid intraoperative exposure to radiation tracked ultrasound snapshots—US image frames coupled with corresponding spatial positions—could be used to map preoperatively defined screw plans into the … Continue Reading ››