What kind of gel do they use to perform ultrasound?

During an ultrasound examination, a water-based gel is applied to the skin. This gel serves several important functions:

Acoustical coupling: The main purpose of the gel is to create an acoustical coupling between the ultrasound transducer and the skin. The gel helps to transmit ultrasound waves efficiently by eliminating air pockets, which can create resistance to sound wave propagation. By providing a smooth and consistent interface, the gel ensures better transmission and reception of ultrasound waves, resulting in clearer and more accurate images.

Comfort: The ultrasound gel is designed to be gentle on the skin, causing minimal discomfort during the examination. It provides a cushioning layer between the transducer and the skin, making the process more comfortable for the patient.

Cooling: The gel also acts as a cooling agent. The transducer generates heat during the ultrasound examination, and the gel helps to dissipate this heat, preventing the transducer from overheating and maintaining a comfortable temperature on the skin.

Hypoallergenic: The gel used for ultrasound examinations is typically hypoallergenic, meaning it is formulated to minimize the risk of allergic reactions. It is usually free from fragrances, parabens, and other potential irritants, making it suitable for most patients.

The ultrasound gel is typically water-based and contains various thickening agents to achieve the desired consistency. It is specifically designed for medical imaging and is safe for use on the skin during ultrasound examinations.