Indium In 111-labeled Macroaggregated Albumin

**Semantic type:** Pharmacologic Substance

**Definition:** A radiopharmaceutical formulation containing human, serum albumin (HSA) labeled with indium In 111 (In-111) in macroaggregates (MAA) with potential usage as a diagnostic imaging agent. Upon injection of indium In 111-labeled macroaggregated albumin and subsequent imaging, biodistribution patterns can be assessed and the expected distribution of agents with similar particle sizes may be predicted.

**Synonyms:** - In-111-labeled Macroaggregated Albumin