The contrast ultrasound is used to characterize and diagnose ultrasound-discovered nodules in internal organs (liver, pancreas, spleen, kidneys, uterus, ovaries, bladder, prostate, breast, thyroid, etc.). This type of investigation requires the intravenous injection of a contrast agent, in a very small amount (from 1 ml to 4.8 ml, depending on the investigated organ).

The contrast agent is actually an inert gas that, when mixed with phospholipids and saline, by agitation, forms millions of microbubbles. After injecting the substance in the form of microbubbles, in a very short time (approximately 10 seconds), it reaches the level of the investigated node and allows to obtain an image based exclusively on the signal from the vessels. The substance is completely eliminated from the body by expiration within about 15 minutes of injection.

Advantages of contrast ultrasound

This method is non-invasive, non-radiant, very well tolerated by the body and more advantageous from a financial point of view compared to other investigations that use contrast (computed tomography, MRI).

Compared to classical ultrasound, contrast-enhanced ultrasound can visualize and characterize anatomical structures much better and it makes it easier to differentiate between malignant and benign in the case of various tumors of the investigated organs.

The contrast agent may be injected repeatedly into the same patient during the same ultrasound examination, without any risk of adverse reactions. The substance is not allergenic and can be given to patients who do not tolerate iodinated contrast agents (used in CT) or paramagnetic substances (used in MRI) and to patients with kidney problems.

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