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Y90 Radioembolization: Does dosimetry and distribution of planning Tc99m MAA on SPECT/CT correlate with posttreatment Y90 PET/CT?

Contributed by Dr. Ram Gurajala and Gaurav Gadodia
04 April 2019


Injection of Tc99m MAA to measure shunting is routine practice prior to Y90 radioembolization of hepatic tumors.  Trials have shown inconclusive data on if MAA distribution can be used to predict Y90 dosimetry and also limited for quantitative assessment.

This study was performed to assess dosimtery on the MAA based on local deposition method and its correlation to the post Y90 dosimtery.

Oral presentation done at SIR 2019, Austin.