99mTc-MAA SPECT/CT imaging for treatment response prediction after 90Y-radioembolization in HCC patients: Comparison with posttreatment 90Y PET/CT

90Y PET/CT imaging is performed after radioembolization to re-evaluate the resin microsphere distribution and estimate the absorbed radiation dose of target tumor. However, the distribution of 90Y resin microsphere on PET/CT was different from that of 99mTc-MAA simulation and additive role of PET/CT was not well established until now.