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→Image taking: Optional
:*A small field-of-view.<ref name="KnutstadHager2016"/>
:*Posteroanterior projection, or slightly oblique to avoid superimposing the spine.<ref name=Helsingborg/>
*Check Optionally, check if it is possible to '''aspirate''' from the catheter.
*For ports, first inject a small amount of contrast to and image when contrast fills the port '''chamber and the catheter''', to exclude malfunction.<ref name=Helsingborg/>
*Imaging of the '''outflow''' from the catheter is done at 10-15<ref name="Frequency" group="notes">A frequency of 2-4 images per second has also been suggested (Knutstad, 2016), which confers a lower radiation dose but makes it more difficult to determine the dynamic flow of contrast.</ref> images per second.<ref name=Helsingborg/>
