Abstract #1322

The Investigation of Apparent Diffusion Coefficient in Renal Cortex and Medulla During the Cardiac Cycle.

Masahiro Umeda¹, Toshihiro Higuchi², Yuki Mori³, Yoshichika Yoshioka⁴, Yasuharu Watanabe¹, Yuko Kawai¹, Tomokazu Murase², Chuzo Tanaka²

¹Medical Informatics, Meiji University of Integrative Medcine, Nanantanshi, Kyoto, Japan; ²Neurosurgery, Meiji University of Integrative Medcine, Nanantanshi, Kyoto, Japan; ³Immunology Frontier Center, Osaka University, Suita, Osaka, Japan; ⁴Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan

The renal ADCs with high b values (100 - 800 s/mm²) were investigated during the cardiac cycle. The average ADC of the renal medulla was higher than that of cortex ( P < 0.01). However a maximum renal arterial flow occurred at 60 ms after R-wave during the cardiac cycle, the changes of ADC with high b value showed no peak at the same time . The renal ADC with high b values was less influenced by renal blood flow.