Table 1 Classification and physicochemical characteristics of ICM
From: Preprocedural fasting for contrast-enhanced CT: when experience meets evidence
Classification | Structure | Generic name | Brand name | Molecular weight | aIodine content | bOsmotic pressure | cViscosity |
|---|---|---|---|---|---|---|---|
First generation (HOCM) | Ionic monomer | Ditriazoate | Meglumine diatrizoate | 809 | 306 | 1530 | 5.0 |
Second generation (LOCM) | Nonionic monomer | Iohexol | Ominpaque | 821 | 300, 350 | 680, 830 | 6.3, 10.4 |
Iopamidol | Iopamiro | 777 | 300, 370 | 616, 796 | 4.7, 9.4 | ||
Iopromide | Ultravist | 791 | 300, 370 | 590, 770 | 4.7, 10.0 | ||
Ioversol | Optiray | 807 | 320, 350 | 710, 790 | 5.8, 9.0 | ||
Iobitridol | Xenetix | 835 | 300, 350 | 695, 915 | 6.0, 10.0 | ||
Iomeprol | Iomeron | 777 | 300, 400 | 521, 726 | Â | ||
Ionic dimer | Ioxaglate | Hexabrix | 1270 | 320 | 600 | 7.5 | |
Third generation (IOCM) | Nonionic dimer | Iodixanol | Visipaque | 1550 | 270, 320 | 290, 290 | 5.8, 11.8 |
Iotrolan | Isovist | 1626 | 300 | 290 | Â |