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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Clin Transl Imaging. 2017 Sep 11;5(5):473–485. doi: 10.1007/s40336-017-0245-8

Figure 7. Kidney.

Figure 7

A 59-year-old male with hepatocellular carcinoma and no prior radioembolization was injected with 99mTc-MAA via right groin access into the right hepatic artery and imaged 126 minutes after injection. Calculated lung shunt fraction was 3%. He underwent 90Y-radioembolization 20 days later without complication.

Axial, coronal, and MIP SPECT (Row A), axial and coronal fused SPECT/CT (Row B), axial and coronal CT (Row C), and anterior planar (D) images demonstrate radiotracer uptake in the renal parenchyma, likely related to MAA breakdown over time. Renal cortical uptake, of variable intensity, was the most commonly seen location of extrahepatic radiotracer uptake on hepatic artery perfusion studies, seen in 100% of cases. Note that radiotracer is not seen in the renal collecting system, and thus, activity is not due to excretion into the urinary tract.