Abstract #0264

Diffusion Behavior in Rectal Cancer: Comparison of Mono-Exponential, Bi-Exponential & Continuously Distributed Exponential Models

He Wang¹, Yingshi Sun², Yong Zhang¹, Guang Cao¹

¹Applied Science Lab, GE Healthcare, Shanghai, China; ²Department of Radiology, Peking University Cancer Hospital, Beijing, China

We compared three diffusion models to evaluate rectal cancer, which include mono-exponential, bi-mono-exponential and continuously distributed exponential model. We found the continuously distributed exponential model has an extremely small value of chi-square in fitting the rectal cancer diffusion data which means this model may reveal the true distribution of diffusion components in rectal cancer.