Which of the following is NOT a component of interventional supplies?

In the context of interventional supplies, diagnostic contrast agents are not typically considered a direct component of the supplies used for the procedural aspect of interventional radiology. Interventional supplies generally refer to items that are actively used during invasive procedures to treat conditions or facilitate access to specific anatomical areas. These supplies include needles for puncturing vessels or tissues, wires that assist in guiding catheters or devices during a procedure, and embolization materials used to occlude blood vessels for various therapeutic reasons.

Diagnostic contrast agents, on the other hand, are primarily used for imaging purposes before or during procedures to enhance the visibility of structures within the body on radiographic images. While they play a crucial role in the diagnostic phase of patient assessment, they do not serve as interventional supplies used directly to carry out the procedures themselves. Therefore, distinguishing between supplies that are directly utilized in interventions versus those used for imaging helps clarify why diagnostic contrast agents do not fit into the category of interventional supplies.