Figure 6From: Image guidance using 3D-ultrasound (3D-US) for daily positioning of lumpectomy cavity for boost irradiationCT image with clips, co-registered with US in axial, coronal and sagittal views. CT cavity (GTV) is in yellow, US seroma (RV) is in red, and blue represents PTV. In this case the US provides additional information for seroma definition.Back to article page