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Experimental setup of the mobile C-arm for two-dimensional and three-dimensional imaging. (a) Dosimetry setup for adult body protocol (32 cm diameter phantom). (b)–(c) System geometry illustrating the world coordinate reference frame (w), virtual detector coordinate reference frame (i), and relevant geometric calibration parameters, as described in Cho et al.28 The detector rotation (ϕd, θd, ηd) describe the orientation of the detector relative to the virtual coordinate frame (i).
