本研究發展一套智慧式的電腦輔助脊椎訓練手術導引系統，以自行設計實作之脊椎鑽孔訓練裝置，由專業醫師先行於人工假 骨頭（Sawbone）上設定示範用定點座標與方位，經X光機取得AP/Lat.兩張影像，透過X光機校正程式校正後並經影像對正建立出影像間的座標系統，再導入三維座標量測儀（MicroScribe G2X），受訓醫師參考所開發導引軟體之影像資訊，於Sawbone上進行穿刺方位訓練，提供示範座標之方位並分析其差異。
　　本研究結合相機校正、影像處理與對正等技術，經由空間幾何的圖學技術於軟體上即時展現導引設備的方位資訊，提供醫師直覺化的3D空間資訊介面。以此系統為臨床應用之先導性研究，並以之訓練實習醫師椎足鑽孔的空間感，達到手術訓練目的。

　　In this research, we present a computer-aided training system for pedicle screw implantation. Based on the imaging from fluoroscopic X-ray, the techniques include camera calibration, image registration, coordinate transformation, and also invoke a 3D digitizing device (MicroScribe G2X) for training navigation. In the beginning of experiment, sawbones with pre-placed makers (steel balls) are setuped as the practice targets. Before training, an experienced surgeon screws many deep holes as references on the sawbones. According two biplane imagings(AP/Lat.), we can construct the 3D spacing relationship between the biplane imagings and visualize on the designed software. Depend on the 3D orientations provided by the system, the interns or trainees operate the digitizing device’s stylus to set up the chosen pedicles’ directions on the sawbones in the training phase. The outcomes were compared with the reference angles. The trainees can repeat the procedures and practicing several times. We hope to assist the interns be more skillfal in pedicle screw implantation surgery and earily become a experienced surgeon.

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