Sachiko Yuen1, Mariko Goto1, Kei Yamada1, Akiko Takahata1, Kaori Nishida1, Tsunehiko Nishimura1
1Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
Post-contrast ADC exhibited a significant lower value (-23%, p=0.01) than pre-contrast ADC in breast carcinoma, which is thought to reflect the suppression of the microperfusion-induced effect on DWI. When early post-contrast images were used as a surrogate marker of tumor aggressiveness, we found a significant inverse correlation with the post-contrast ADC ( = -0.57, p=0.02). Post-contrast ADC may be a better indicator to reflect the aggressiveness of tumors.