Table 1 Classification and physicochemical properties of common iodine contrast medium
Classification | structure | Common name | Molecular weight | Iodine content(mg I/mL) | Osmotic pressure(mmol/L) |
|---|---|---|---|---|---|
First generation (high-osmolal ICM) | Ionic haplotype | Meglumine diatrizoate | 809 | 306 | 1530 |
Second generation (low-osmolal ICM) | Non-ionic haplotype | Iohexol | 821 | 300 | 672 |
350 | 844 | ||||
Iopamidol | 777 | 300 | 616 | ||
370 | 796 | ||||
Ioversol | 807 | 300 | 651 | ||
350 | 792 | ||||
Iopromide | 791 | 300 | 607 | ||
370 | 774 | ||||
Iomeprol | 778 | 300 | 520 | ||
350 | 620 | ||||
Third generation (Iso-osmolal ICM) | Non-ionic dimer | Iodixanol | 1550 | 270 | 290 |
320 | 290 |