Water-soluble intravascular iodinated contrast agents

Water-soluble intravascular iodinated contrast agents [SED-15, 1848 SEDA-31, 731 SEDA-33, 963]... 

There are four types of iodinated water-soluble contrast media, classified according to their physicochemical properties (Table 1). They are mainly used intravascularly but can also be injected into body cavities, particularly the low-osmolar contrast agents. Some are also used for oral or rectal administration, and the high-osmolar water-soluble contrast agent diatrizoate is suitable only for these purposes. Low-osmolar and iso-osmolar iodinated contrast media have almost completely replaced high-osmolar agents for intravascular use and administration into body cavities. 

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