634 Correlation analysis between pre-treatment verification precision and plan complexity or machine parameters using log files for VMAT delivery. (September 2015) - Kosaka, K.; Tanooka, M.; Inoue, H.; Tarutani, K.; Fujiwara, M.; Niwa, Y.; Takada, Y.; Doi, H.; Odawara, S.; Suzuki, H.; Kamikonya, N.; Hirota, S.