Fig. 1From: Pelvic target volume inter-fractional motion during radiotherapy for cervical cancer with daily iterative cone beam computed tomographySagittal slices of a planning CT scan from different patients. Daily clinical target volume contours from the iCBCT were mapped to the planning CT after registration with respect to bony anatomy. Initial CTV-U and CTV-C are shown in red, ultimate CTV-U and CTV-C are shown in yellowBack to article page