Fensky, Held: Spinal Canal Centerline Extraction in Mri
نویسندگان
چکیده
The centerline of the spinal canal holds interesting information which can be used for tasks such as segmenting the spinal canal or to track the progression of spinal deformities. We propose a method that extracts the centerline of the canal by a shortest path search in 4D, whereby dimensions correspond to 3D canal location and canal width. Our method requires only minimal user interaction in the form of two seed points to extract the centerline over the whole length of the spinal canal. We reconstruct the shortest path using a second-order fast marching scheme on a vesselness-based energy. Our approach was evaluated on an MRI dataset of 103 subjects with encouraging results and proved viable with a variety of different parameterizations.
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