Yttrium-90 radioembolization (Y RE) is a contemporary transcatheter locoregional therapy for primary and secondary hepatic malignancies that is commonly utilized in modern Interventional Radiology (IR) practice.1 Unlike other targeted endovascular therapies, such as transarterial chemoembolization (TACE) and transarterial embolization (TAE), the current standard of care protocol for Y RE treatm...