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Figures
- Fig. 1
Coronal 4-dimensional computed tomography (4DCT) images showing relative position of the trapeziometacarpal joint at 3 positions of progressive thumb adduction. Three-dimensional bony models can be registered to 4DCT volumes to quantify changes in relative positions during motion.
- Fig. 2
Axial 4-dimensional computed tomography images showing syndesmotic reduction in plantar flexion (left) and dorsiflexion (right) as measured by the anterior (AN), middle (MN) and posterior (PN) syndesmosis distances.
- Fig. 3
Axial 4-dimensional computed tomography images showing that substantial motion artifact occurs in the forefoot during ankle plantar flexion and dorsiflexion if the tibia remains stationary. Motion artifact can be minimized by holding the area of interest in a fixed position and moving the body or limb relative to that area of interest.
- Fig. 4
Axial 4-dimensional computed tomography images showing an ankle with metal implants after open reduction internal fixation of an ankle fracture. The metal artifact disrupts image-processing routines and obscures the anatomy.
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