Contrast CT of a patient with brain metastases from breast cancer, before (left) and after (right) injection of<unk> .<unk>  is a form of intravenous radiocontrast agent containing iodine, which enhances the visibility of vascular structures and organs during radiographic procedures. Some pathologies, such as cancer, have particularly improved visibility with<unk> . The radiodensity of<unk>  is 25–30 Hounsfield units (HU) per milligram of iodine per milliliter at a tube voltage of 100–120 kVp.
Iodinated contrast
Contrast agent
Radiocontrast agent
Paracentesis
Saline flush
Acetic acid
Acetic acid 
Thickened fluids