Large-Deformation Image Registration of CT-TEE for Surgical Navigation of Congenital Heart Disease

Figure 2

The process of interactive segmentation. (a) Interactive segmentation of a CT image. (b) The result of CT image segmentation. (c) Interactive segmentation of a TEE image. (d) The result of TEE image segmentation. Note: during interactive segmentation, the user selected a region of interest (yellow box) and marked the target (red dots) and the background areas (blue dots). CT, computed tomography; TEE, transesophageal echocardiography.

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