[1] Department of Radiology and the Institute of Radiation Medicine,
[2] Seoul National University College of Medicine,undefined
[3] 28 Yongon-dong,undefined
[4] Chongno-gu,undefined
[5] Seoul 110–744,undefined
[6] South Korea E-mail: kimio@radcom.snu.ac.kr Tel.: + 82-2-7 60 25 84 Fax: + 82-2-7 43 63 85,undefined
[7] Department of Neurosurgery,undefined
[8] Seoul National University College of Medicine,undefined
[9] Seoul,undefined
[10] South Korea,undefined
[11] Department of Pathology,undefined
[12] Seoul National University College of Medicine,undefined
[13] Seoul,undefined
[14] South Korea,undefined