What Is a Bolus Injection?

Intravenous bolus injection is one of the methods of CT contrast injection.

Intravenous bolus

This entry lacks an information bar and an overview map . Supplementing related content makes the entry more complete and can be upgraded quickly. Come on!

Intravenous bolus injection is one of the methods of CT contrast injection.

Using a hand push or pressure syringe, generally 60-100ml of iodine water contrast agent is injected into the vein at a speed of 2-5ml per second.

The concentration in the blood increases rapidly due to the rapid injection of the contrast agent. According to the different scanning times, the arterial phase, the equilibrium phase, and the venous phase of the blood vessels in the organ can be seen separately, which can clearly show the lesion and observe the inside The concentration of the contrast agent is used to estimate the nature of the lesion. The concentration of the contrast agent in blood vessels can generally reach several minutes.