Figure 1. (a) Movement artefacts on an axial slice of a CBCT scan as a result of movement of bowel gas. (b) An axial slice from a planning CT of the pelvis for comparison. (Courtesy of Varian Medical Systems, Palo Alto, CA and Memorial Sloan-Kettering Cancer Centre).
Figure 2. Movement artefacts on an axial slice from a CBCT acquired during normal breathing.(Courtesy of Varian Medical Systems and Hirslanden Klinik, Aarau).
Figure 3. A single contour in axial sagittal and coronal planes defines a three dimensional target in Prosoma.(Courtesy of Oncology Systems Limited, Shrewsbury, UK and Medcom, Darmstadt, Germany).
Figure 4. (a) Fusion of MRI and CT data sets, fused images in the top windows and MRI images below. (b) A split screen showing fusion between CT and MRI data sets in quadrants. (c) An alternative split screen representation of fusion between CT and MRI data sets. (d) Areas of mismatch between two CT data sets displayed as image enhancement. (Courtesy of OSL and Medcom).
