The purpose of this research is to evaluate a new technique, quantitative digital subtraction angiography (qDSA), to measure blood flow during liver embolization procedures. Liver embolization is a way of treating liver tumors by blocking blood flow to it. The qDSA technique could help doctors ensure the blood flow to the tumor is decreased by the right amount by calculating blood flow before, during, and after the procedure. Up to 20 participants will be enrolled for 1 study visit and data collection for up to 6 months.
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Number of patients in which qDSA measurements demonstrate successive reductions in hepatic arterial velocity at the pre-, mid-, and post-embolization time points
Timeframe: data collected pre-embolization, mid-embolization, and post-embolization (up to 1 hour), data processed retrospectively for this measure when data collection is complete (up to 6 months)