[1] Hosp Clin Univ Santiago de Compostela, Dept Radiol, Choupana S-N, Santiago De Compostela 15706, Spain
[2] Mt Vernon Canc Ctr, Paul Strickland Scanner Ctr, Northwood, Middx, England
[3] Univ Klinikum Ulm, Klin Nukl Med, Ulm, Germany
[4] Univ Girona, Dept Radiol, Clin Girona, IDI, Girona, Spain
[5] Hlth Time, Clin Nieves SERCOSA, Jaen, Spain
[6] Case Western Reserve Univ, Dept Radiol, Cleveland, OH 44106 USA
[7] Hosp Clin Barcelona, Dept Radiol, Barcelona, Spain
[8] Hosp Clin Univ Santiago de Compostela, Dept Radiotherapy, Santiago De Compostela, Spain
[9] Royal Marsden Hosp, Funct Imaging, Sutton, Surrey, England