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Fig. 6 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 6

From: The role of functional imaging; DWI, ADC and 18F-FDG PET/CT in the evaluation of HCC treatment response after transarterial chemoembolization

Fig. 6Fig. 6

60 years old male patient underwent TACE. TR-LR nonviable lesion with no PET/CT uptake yet with diffusion restriction, and PET uptake in de novo HCCs and metastatic mediastinal LNs. AD Arterial (A, B), and delayed (C, D) triphasic CT showing partial lipiodol retention (red arrow) in a nonviable HCC, and multiple de novo HCCs, the largest (yellow arrow) shows APHE and washout. EG PET/CT study shows no uptake in the ablated HCC with SUV max measuring 1.86 (E), mean SUV of normal hepatic parenchyma is 3.15 (F) (SUV ratio is 0.59), focal uptake is seen in the de novo HCC (G). H, I DWI and ADC map shows restricted diffusion in the ablated HCC with ADC value measuring 1.18 × 10−3 mm2/s. J, K DWI and ADC map shows restriction diffusion of the de novo lesion with an ADC value of 0.937 × 10−3 mm2/s. L, M PET/CT shows multiple metabolically active mediastinal lymphadenopathies (extra-hepatic metastases) with SUV max measuring about 5 (green circle)

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