Iodine I 124-labeled Albumin

**Semantic type:** Amino Acid, Peptide, or Protein|Indicator, Reagent, or Diagnostic Aid|Pharmacologic Substance

**Definition:** A radioconjugate containing serum albumin labeled with the radioisotope iodine I 124, with potential use as an imaging agent using positron emission tomography (PET). Upon administration, iodine I 124 albumin distributes in a similar manner to endogenous albumin. Upon PET, albumin distribution patterns can be imaged. Specifically, the distribution to and residence time in a tumor can be assessed upon imaging. These findings may predict the distribution patterns of agents with similar particle sizes.

**Synonyms:** - 124I-albumin - 124I-labeled Albumin