The importance of optimal ROIs delineation for FBPA-PET before BNCT

Authors:   Lo Y.-W., Lee J.-C., Hu Y.-S., Li C.-Y., Chen Y.-L., Lin C.-S., Huang W.-S., Lin K.-H., Chen Y.-W.
Journal: Applied Radiation and Isotopes
https://doi.org/10.1016/j.apradiso.2020.109219
Abstract: One of the eligible criteria for patients to receive boron neutron capture therapy (BNCT) is based on the tumour-to-normal ratio (T/N) measured by FBPA-PET. However, there is no standard protocol for normal region-of-interested delineation. With comparison of contralateral cerebrum, our study revealed the consistency (p < 0.05) and high feasibility using the cerebellum as an alternative normal tissue baseline because of its homogeneous uptake. Following RECIST version 1.1, the standard-operating-procedure (SOP) for the BNCT fulfilled the expected tumour response and tumour shrinkage rate (p < 0.05). Our modified procedure can provide more precise information for BNCT within a reasonable time.