Description
Injection of contrast media during CT scan or MRI procedures
Use an angled Huber needle (without tubing) or a Huber needle with tubing validated for high pressure injection.
• Select the appropriate Huber needle gauge to the viscosity of the contrast medium used and to the implantable port reference following the recommendations in table (hereafter).
• Set the maximum injector pressure to 22.4 bars or 325 psi in order to guarantee the reliability of the system.
• Only use 19G or 20G needles for polysite™ and seesite™ Standard (series 4000) and Mini (series 3000) and 20G or 22G for polysite™ and seesite™ micro (series 2000), in accordance with table hereafter.
• Do not inject more than 3 m Us when using a 22G Huber needle.
• Always ensure that the injection circuit is fully operational (Huber needle and implantable port) by obtaining reflux of blood and injecting 10-20 ml of normal saline without dificulty.
• Warm the contrast medium to 37 °C (100 °F) before use (1).
• Always ensure that the catheter is equal or less than 25 cm long (do not administer this type of injec- tion with a femoral catheter) (1).
• Never exceed the maximum recommended flow rate for a given port.
• Never inject contrast media with a viscosity greater than that shown in table hereafter.
• Rinse the implantable port with 10 to 20 ml of 0.9% NaCl before and after use followed by usual rinsing procedures.
Not following these recommendations may lead to failure of the system through excess pressure or
obstruction.
