Fig. 2
A and E: T2-weighted images; B and F: Diffusion weighted image s(DWI) with b-value 0 s/mm2; C and G: Apparent diffusion coefficient (ADC) maps; D and H: Diffusion kurtosis imaging (DKI) maps. Images A to D represent the lesion before chemotherapy, while images E to H represent the lesion after 2 courses of chemotherapy. Red arrow: the pancreatic lesion. The ADC and MD values increased slightly, and the K value increased slightly after two courses of chemotherapy. The mass increased slightly after two courses of chemotherapy and was evaluated as non-PR. This patient is a 58-year-old male patient with a 4.8 × 3.5 cm mass in the tail of the pancreas accompanied by liver metastasis. Here are the related parameters: ADCpre=1.02 × 10− 3 mm2/s, ADCpost=1.12 × 10− 3 mm2/s, ADCchange = 0.10; MKpre=0.64, MKpost=0.65, MKchange=0.01; MDpre=1.83 × 10− 3 mm2/s, MDpost=2.07 × 10− 3 mm2/s, MDchange=0.13