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Insights into Imaging
Fig. 6 | Insights into Imaging

Fig. 6

From: Development and validation of a model for predicting the expression of Ki-67 in pancreatic ductal adenocarcinoma with radiological features and dual-energy computed tomography quantitative parameters

Fig. 6

DECT figures of a 66-year-old female patient with low Ki-67 expression in PDAC. a CT-reported regional LN negative. b, c ICtumour and ICaorta in the same layer in the PVP and EP, the NIC of PVP was 0.45 mg/ml and the ECVf was 42.29%. d Ki-67 was 30%. (red arrow: inferior vena cava). DECT figures of a 73-year-old male patient with high Ki-67 expression in PDAC. e CT-reported regional LN positive. f, g ICtumour and ICaorta in the same layer in the PVP and EP, the NIC of PVP was 0.34 mg/ml and the ECVf was 37.08%. h Ki-67 expression was 60%. (red arrow: inferior vena cava). DECT, dual-energy computed tomography; ECVf, extracellular volume fraction; EP, equilibrium phase; IC, iodine concentration; LN, lymph node; NIC, normalized iodine concentration; PDAC, pancreatic ductal adenocarcinoma; PVP, portal vein phase

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