Movie E1.

The first part of the video shows the rotation of the C-arm from −120° to +120° during closed arc cone-beam CT. This geometric setup allowed only a limited movement of the table on the x-axis such that the FOV cannot be placed off center. The second part of the video shows the rotation of the C-arm from +55° to −185° during open arc cone-beam CT. This geometric setup opens the rotation arc to the left side so that the procedure table can be moved left on the x-axis (red arrows), allowing for improved off-center placement of the FOV.

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