[1] Cent South Univ, Xinagya Hosp, Dept Neurosurg, Changsha, Peoples R China
[2] Cent South Univ, Xiangya Hosp, Hunan Int Sci & Technol Cooperat Base Brain Tumor, Changsha, Peoples R China
[3] Brown Univ, Rhode Isl Hosp, Dept Diagnost Imaging, Providence, RI USA
[4] Brown Univ, Alpert Med Sch, Providence, RI USA
[5] Univ Penn, Perelman Sch Med, Dept Pathol & Lab Med, Philadelphia, PA USA
[6] Johns Hopkins Univ, Sch Med, Dept Radiol & Radiol Sci, Baltimore, MD USA