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.