[1] Chinese Univ Hong Kong, Fac Med, Dept Imaging & Intervent Radiol, Hong Kong, Peoples R China
[2] Auckland Dist Hlth Board, Dept Radiol, Auckland, New Zealand
[3] Univ Auckland, Fac Med & Hlth Sci, Dept Anat & Med Imaging, Auckland, New Zealand
[4] IMSKE, Dept Radiol, Valencia, Spain
[5] Univ Granada, Fac Med, Dept Radiol & Phys Med, Granada, Spain
[6] Hosp Univ Virgen Nieves, Musculoskeletal Radiol Unit, Granada, Spain
[7] IRCCS Ist Ortoped Rizzoli, Diagnost & Intervent Radiol, Bologna, Italy
[8] Chinese Univ Hong Kong, Fac Med, Dept Imaging & Intervent Radiol, Shatin, 30-32 Ngan Shing St, Hong Kong, Peoples R China