Abstract #4803

Differentiating metastatic from nonmetastatic lymph nodes by using monoexponential, biexponential, and stretched exponential diffusion-weighted imaging in cervical cancer patients

Qingxia Wu¹, Dandan Zheng², Ligang Shi³, Mingbo Liu⁴, Meiyun Wang¹, and Dapeng Shi¹

¹Radiological Department, Henan Provincial People’s Hospital ( Zhengzhou University People’s Hospital ), Zhengzhou, People's Republic of China, ²MR Research China, GE Healthcare, Beijing, People's Republic of China, ³Pathological Department, Henan Provincial People’s Hospital ( Zhengzhou University People’s Hospital), Zhengzhou, People's Republic of China, ⁴Radiotherapeutical Department, Henan Provincial People’s Hospital ( Zhengzhou University People’s Hospital ), Zhengzhou, People's Republic of China

The aim of our study was to judge whether diffusion parameters derived from different models of multi-b value DWI could be used to discriminate metastatic from nonmetastatic pelvic lymph node (LN) status in patients with cervical cancer. A statistical significant difference in the mean D, f and α values between metastatic and nonmetastatic LNs, with metastatic LNs presenting with higher D values, lower f values and higher α values than nonmetastatic ones. This study revealed that metastatic LNs had their respective diffusion parameters compared with nonmetastatic LNs.

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