Patent ID: 8210745

Claim:
An apparatus for cone beam computed tomography of a portion of a lower leg of a patient, comprising: a source transport actuable to move a radiation source along at least a portion of an arcuate source path within a housing, wherein the source path extends from one side of a circumferential gap in the housing to the other side of the circumferential gap and has a radius R 2 about a center; a pedestal indent on the housing for placement of the patient's foot; a digital radiation detector; a detector transport actuable to move the detector along at least a portion of an arcuate detector path within the housing, the detector path having a radius R 1 about the center and concentric with the source path, wherein R 1 is less than R 2 , and wherein the detector path extends from one side of the pedestal indent to the other; and a gap closure apparatus that is movable to a position that continues the detector path across the circumferential gap and that encloses the detector path across the gap.