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Deformable registration examples of a GYN cancer patient. (a)–(c) are from the registration step one, (d)–(g) are from the step two. (a) and (d) are the MVCT images, (b) and (e) are the kVCT images, (c) and (f) are the registered MVCT images. (g) is the checkerboard image overlaid with motion vectors. The bladder and the rectum are at the top and the bottom, respectively. Solid, dashed, and dotted are the line styles for MVCT, kVCT, and deformed MVCT structures, respectively.
