作者单位:Nippon Med Sch, Dept Radiol, Bunkyo Ku, 1-1-5 Sendagi, Tokyo 1138603, Japan[1]Seirei Hamamatsu Gen Hosp, Hand & Microsurg Ctr, Naka Ku, 2-12-12 Sumiyoshi, Hamamatsu, Shizuoka[2]Nippon Med Sch, Dept Plast Reconstruct & Aesthet Surg, Bunkyo Ku, 1-1-5 Sendagi, Tokyo 1138603[3]