Comparative Study With New Accuracy Metrics for Target Volume Contouring in PET Image Guided Radiation Therapy. - Tony Shepherd; Mika Teräs; Reinhard Beichel; Ronald Boellaard; Michel Bruynooghe; Volker Dicken; Mark J. Gooding; Peter J. Julyan; John Aldo Lee; Sébastien Lefèvre; Michael Mix; Valery Naranjo; et al. (IEEE Trans. Medical Imaging, 2012)