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A, Workflow of FRAPPE with one axial image slice as an example. B, Bounding box is detected shown in green rectangles. C, The x and y coordinates of boxes from all slices are refined using a tracklet approach. D, Lumen (red) and outer wall (blue) contours are generated using the segmentation model. E, Vascular features are calculated using contours. F, Segmentation results can be exported and visualized, with the red arrow indicating the slices in A,B,D
