Figure 7From: Image guidance using 3D-ultrasound (3D-US) for daily positioning of lumpectomy cavity for boost irradiationUS and CT image co-registration in axial, sagittal and coronal views. The CT cavity (GTV) is in blue, US seroma (RV) in green, and the blue represents PTV. The RV is not always in the geometric center of the GTV.Back to article page