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. 2012 Dec;85(1020):e1256–e1262. doi: 10.1259/bjr/26802977

Table 3. Changes in mean volume overlap index (VOI) of the bony landmarks for the two registration set-ups.

Structure CT–MRID mean VOI CT–MRIRT mean VOI
Left femoral head 0.77 0.85
Right femoral head 0.72 0.81
Symphysis pubis 0.52 0.56

CT–MRID, CT registered with the diagnostic MRI scan; CT–MRIRT, CT registered with the MRI scan in the radiotherapy position.