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European Radiology Experimental
Fig. 2 | European Radiology Experimental

Fig. 2

From: Material decomposition using iodine quantification on spectral CT for characterising nodules in the cirrhotic liver: a retrospective study

Fig. 2

Spectral computed tomography (SCT) of a patient with cirrhosis and hepatocellular carcinoma depicting polychromatic, material density (MD) map, and scatter plots. a Arterial phase axial polychromatic image showing well-defined subcapsular hypervascular lesion (HCC), measuring 2.4 cm in segment IV (blue arrow). b Iodine density map showing ROI (blue circle) within lesion to calculate ICDnodule HAP (blue arrow), ROI in the liver (red circle) to measure ICDliver HAP (pink arrow), and ICDaorta (green arrow). c Scatter plot depicting the highest iodine density value of the aorta (green arrow), lesion iodine density (blue arrow) less than the aorta but more than the background liver (pink arrow). d Portal venous phase polychromatic image showing segment IV lesion depicting washout (yellow circle) with capsular enhancement (blue arrow). e Corresponding iodine density map showing ROI within lesion (blue circle) to calculate ICDnodule PVP, ICDaorta PVP (green circle), and ICDliver PVP (pink circle). f Scatter plot depicting the highest ICDaorta PVP (green arrow), ICDnodule PVP (blue arrow) showing a decreasing trend of iodine density compared to the background liver (pink arrow)

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