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Abstract #4131

Preoperative Apparent Diffusion Coefficient Value of Gastric Cancer by Diffusion-Weighted Imaging: Correlations with Postoperative TNM Staging

Zhengyang Zhou 1 , Song Liu 1 , Jian He 1 , and Wenxian Guan 2

1 Radiology, Affiliated Drum Tower Hospital,School of Medicine,Nanjing University, Nanjing, Jiangsu, China, 2 Gastrointestinal Surgery, Affiliated Drum Tower Hospital,School of Medicine,Nanjing University, Nanjing, Jiangsu, China

Seventy patients with gastric cancer underwent preoperative diffusion-weighted MRI and then surgical resection. Mean and min ADC values of each gastric cancer were obtained. Postoperative TNM staging of each patient was determined. Mean and min ADC values of gastric cancers with different TNM staging were compared. Both mean and min ADC values of gastric cancers correlated with postoperative T staging and N staging. Both mean and min ADC values of gastric cancers correlated with the area and depth of the lesions. The preoperative ADC values of gastric cancers can provide valuable information to predict postoperative TNM staging of the patients.

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