During enhanced CT examination, the operator usually uses a high-pressure injector to quickly inject the contrast agent into the blood vessels, so that the organs, lesions and blood vessels that need to be observed can be displayed more clearly. The high pressure injector can quickly and accurately inject a sufficient amount of high-concentration contrast media into the human body’s blood vessels, preventing the contrast media from being rapidly diluted after being introduced into the human body. The speed is usually set according to the examination site. For example, for enhanced liver examination, the injection speed is kept in the range of 3.0 – 3.5 ml/s. Although the high-pressure injector injects quickly, as long as the subject’s blood vessels have good elasticity, the general injection rate is safe. The dose of contrast agent used in an enhanced CT scan is about one thousandth of the human blood volume, which will not cause large fluctuations in the subject’s blood volume.
When the contrast media is injected into the human vein, the subject will feel local or even systemic fever. This is because the contrast agent is a chemical substance with high osmotic properties. When a high-pressure injector is injected into a vein at a high speed, the blood vessel wall will be stimulated and the subject will feel vascular pain. It can also directly acts on vascular smooth muscle, causing local blood vessel dilation and producing heat and discomfort. This is actually a mild contrast agent reaction that will not cause harm to the human body. It will return to normal quickly after enhancement. Therefore, there is no need to panic or misunderstand if local or systemic fever occurs when contrast agent is injected.
LnkMed focuses on the angiography industry and is a professional manufacturer providing imaging solutions. Our CT single,CT dual head , MRI,and DSA high pressure injectors are widely used in major hospitals at home and abroad.
We aim to make our products to be ever more effective to meet your patient-centered demand and to be recognized by clinical agencies world-wide.
Post time: Dec-12-2023
