[1] MacKay Mem Hosp, Dept Radiol, Taipei 104217, Taiwan
[2] MacKay Med Coll, Dept Med, New Taipei City 252005, Taiwan
[3] Mackay Jr Coll Med Nursing & Management, Taipei 112021, Taiwan
[4] MacKay Mem Hosp, Dept Neurol, Taipei 104217, Taiwan
[5] Natl Taipei Univ Technol, Inst Mechatron Engn, Taipei 106344, Taiwan