[1] Nagoya Daini Red Cross Hosp, Ctr Cardiovasc, Nagoya, Aichi, Japan
[2] Nagoya Univ, Sch Med, Dept Internal Med 1, Nagoya, Aichi 466, Japan
[3] Nagoya Daini Red Cross Hosp, Dept Radiol, Nagoya, Aichi 466, Japan
[4] Nagoya Univ, Dept Clin Lab Med, Nagoya, Aichi, Japan