| 摘要 |
A system and method for detecting the spinal cord in thoracic and abdominal computed tomography (CT) volume data is disclosed. In this method, an initial spinal cord point is detected for an initial axial slice of the CT volume data. The spinal cord is then tracked from the initial spinal cord point across each remaining axial slices in opposite directions from the initial axial slice by sequentially detecting a spinal cord point for each of the remaining axial slices The initial spinal cord point is detected using a ring model based on intensity differences in the initial axial slice. For each remaining axial slice, a spinal cord center position based on at least one previously detected spinal cord point. The spinal cord points on each of the remaining axial slices are detected based on intensity differences in the axial slice as well as proximity to the predicted spinal cord center position for the axial slice.
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