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Illustration of the extremities scanner. (a) Internal components, including the FPD and x-ray source mounted on a motor-driven sickle arm. A magnified view is shown in the inset. The gantry allows two scanning configurations: (b) a standing configuration for imaging of weight-bearing lower extremities and (c-d) a sitting configuration for imaging of (c) nonweight-bearing lower extremities and (d) tensioned or nontensioned upper extremities.
