Figure 3From: PTV margin definition in hypofractionated IGRT of localized prostate cancer using cone beam CT and orthogonal image pairs with fiducial markersBar diagram of intra-fraction motion in vertical (vrt), longitudinal (lng) and lateral (lat) direction during treatment (N =10). Intra-fraction motion was determined by fiducial marker difference between pre- and post- CBCT.Back to article page