Tool Tracking to be used in an Endoscopic Endonasal Approaches Trainer for Neurosurgical residents
- Endonasal Endoscopic Approaches (EEA’s) are technically challenging and popular minimally invasive approaches to sinonasal and skull base lesions in both Neurosurgery (NSU) and Otolaryngology (ENT)
- NSU & ENT residents have a lower comfort level in these approaches than in open cases, due to the movements, dangers, and lack of training modalities
- Anatomically correct anterior and middle cranial fossa (skull base), and sinus structures
- Skull base obtained from a CT scan, which was then rendered into a segmented 3D model using 3D slicer
- Superior and posterior skull removed for computer vision and electrical access
- PLA 3D printing
- Computer vision tool tracking to measure tooltip movement and instruct resident how to match expert
- Finds max contour in image via masking
- Kalman filter to smooth tool tracking
- Recursive estimator, noise filter
- Electronics to detect tool contact with expert-selected “no go zones” (ICAs, Optic Nerves, Cavernous sinuses)
Youtube demo of the Tool Tracking Algorithm (not within the context of the device): https://youtube.com/shorts/aZmWDemw04g?feature=shared