The hepatobiliary system is the primary route of clearance of the99mTc MPI radiopharmaceuticals. The degree of liver visualization depends on liver function, composition (e.g., scarring), interval between radiopharmaceutical administration and imaging, and type of stress performed. Liver shape and size can be readily evaluated. The degree of uptake within a hepatic neoplasm is variable, and lesions can appear “hot” or “cold.” Localized hepatic activity adjacent to the (nonfilling) gallbladder fossa may signal complicated acute cholecystitis.
KeywordsHepatic Neoplasm Primary Route Hepatobiliary System Polycystic Liver Disease Gallbladder Fossa
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