Preparation of ICG for Administration
Under sterile conditions, reconstitute one (1) 25 mg vial of Indocyanine Green for Injection, USP using one (1) 10 mL Sterile Water for Injection, USP vial located in the ICG for Injection Set. Shake the ICG vial gently to dissolve. After reconstitution, a 25 mg vial of ICG contains 2.5 mg of dye per mL of solution, so a 1.0 mL injection contains a 2.5 mg dose of ICG.
Indocyanine Green for Injection, USP must be used within 6 hours after reconstitution. If a precipitate is present, discard the solution.
Dosage
A 3 mL (7.5 mg) dose followed by a 10 mL bolus of saline is recommended. Multiple doses can be administered as required, up to the maximum recommended dose.
Maximum recommended dose
The total dose of dye injected should be kept below 2 mg/kg.
Timing of ICG Administration
ICG fluorescence is quickly visible within blood vessels, tissue and organs, and it does not last very long (refer to Table 1 below).
Table 1: ICG fluorescence visibility after intravenous injection | Blood Vessels | Organs (Kidney, Liver, Adrenal Gland, Small Bowel) |
See within: | 5-30 seconds | 1-2 minutes |
Visibility lasts: | 20-30 seconds | 20-120 minutes |
For fluorescence imaging of PERFUSION in blood vessels, administration of the ICG should be performed at the time fluorescence imaging is requested by the physician. Multiple imaging sequences may be performed as necessary [up to the maximum dose (2 mg/kg of patient body weight)], so it is recommended to withdraw the desired dosage of ICG solution for each planned imaging sequence into separate syringes ahead of time.
Method of Administration
ICG administration is to be performed via a central or peripheral venous line. Inject the prepared dose of ICG solution into the central or peripheral line as a tight bolus and immediately followed by a bolus of 10-12 mL of normal saline for injection.