Abstract #2769

Value of diffusion tensor imaging quantitative parameter in differentiating cystic pancreatic cancer from solid pseudopapillary neoplasm

Xinqi Wang¹, Yi Wang², Ailian Liu³, and Qinhe Zhang³

¹School of Medical Imaging, Dalian Medical University, Dalian, China, ²Department of Radiology, Dalian Friendship Hospital, Dalian, China, ³Department of Radiology, the First Affiliated Hospital of Dalian Medical University, Dalian, China

It is difficult to differentiate the pancreatic ductail adenocinama(PDAC) from solidpseudopapillary tumer of the pancreas(SPTP),due to their similar imaging characteristics,especially in pancreatic cancer sac change occurs.Diffusion tensor imaging (DTI) is a kind of magnetic resonance technology which can image the diffusion of water molecules in living tissues. There was significant difference in DTI quantitative parameters Fractional Aniso (FA) ,Volume ratio Aniso (VRA), Isotropic image(Iso) and T2-weightial trace(T2-T) between PDAC and SPTP. Therefore, DWI derivative sequences may be an effective method to identify PDAC and SPTP.

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