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Figure 2 | EJNMMI Research

Figure 2

From: Post-radioembolization yttrium-90 PET/CT - part 1: diagnostic reporting

Figure 2

Patient 20. (a) Large hypovascular HCC in the right lobe, seen on contrast-enhanced CT Abdomen. (b) Catheter-directed CT angiogram of the right hepatic artery demonstrates tumor hypovascularity and delineates the target arterial territory. (c)90Y PET/CT depicts, in high resolution, a rim-like activity in the tumor periphery with a large area of relative central photopenia, typical of hypovascular tumors. (d)90Y bremsstrahlung SPECT/CT poorly demonstrates the peripheral activity due to its low image resolution and under-represents the extent of central photopenia.

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