Abstract
Multidetector row CT (MDCT) is a useful method for correct diagnosis of pancreatic cancers. Multiphase dynamic contrast-enhanced CT with high iodine concentration contrast medium (350 mgI/ml, 100–135 ml) is necessary for evaluation of predictability of pancreatic cancers; dynamic CT requires imaging of at least four phases: early arterial phase, late arterial phase (pancreatic parenchyma phase), venous phase, and equilibrium phase. We evaluate eight factors of the extent of the local spread of pancreatic cancers: intrapancreatic bile duct invasion (CH), duodenal invasion (DU), serosa invasion (S), retroperitoneal invasion (RP), portal venous invasion (PV), arterial invasion (A), perineural invasion (PL), and other organ invasion (OO). Arterial invasion is judged when stenosis or occlusion of arterial lumen or encasement by tumor. Portal invasion is judged contact between the tumor and vessel for ≥1/2 of the vessel circumference. Extrapancreatic neural plexus invasion (PL) is a major determinant of prognosis, and accurate diagnosis is of vital importance in determination of operative method of pancreatic cancers.
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Gabata, T. (2017). Evaluation of Resectability of Pancreatic Cancer by MDCT. In: Yamaue, H. (eds) Innovation of Diagnosis and Treatment for Pancreatic Cancer. Springer, Singapore. https://doi.org/10.1007/978-981-10-2486-3_3
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DOI: https://doi.org/10.1007/978-981-10-2486-3_3
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