Target intelligence / Profile preview

Iodine Atom (I)

Target
I
Molecular classification
Element, Contrast Agent Component
01

Overview

Iodine atoms are used as the primary X-ray attenuating component in iodinated contrast agents for medical imaging such as CT and angiography. Their high atomic number (Z=53) leads to efficient photoelectric absorption of X-rays, particularly near the K-edge energy (~33 keV), resulting in enhanced contrast between tissues containing the agent and surrounding soft tissues. While providing high image contrast, the use of iodinated contrast agents carries risks of adverse reactions, including hypersensitivity and nephrotoxicity.

Other names
IodineElement 53
02

Mechanism of action

Photoelectric absorption of X-rays

03

Biological functions

X-ray attenuationContrast enhancement in medical imaging
04

Safety considerations

Hypersensitivity/anaphylaxis to iodinated contrast agentsContrast-induced nephropathy
05

Interacting drugs

Iodinated contrast agents (e.g., iohexol, iopamidol)

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