Ultrasound gel is an almost magical glibbery substance that enables non-invasive examination of many anatomical regions. Over the years, the author has performed several thousand ultrasounds, both diagnostic and interventional. They have worked with a variety of equipment, probes, ultrasound gels, and alternatives. But which one is the best ultrasound gel? Where can it be purchased, and what is ultrasound gel used for?
This article aims to answer these questions and more.
What Is the Best Ultrasound Gel?
1. Aquasonic CLEAR Ultrasound Gel
Aquasonic ultrasound gel is one of the most renowned brands. The Aquasonic CLEAR is colorless and odorless. It comes in convenient bottles as well as in small sterile packs and larger refills.
It is easy to apply to ultrasound probes, does not dry too quickly, and wipes off easily. It does not stain clothing or damage transducers.
Differences from Aquasonic 100:
No coloring (hence "CLEAR")
No fragrance (completely odorless)
Choosing a colored or colorless gel is a personal preference. For those who prefer a slight fragrance and color, Aquasonic 100 is an alternative.
2. Top-Rank Conductive Ultrasound Gel
The Top-Rank Medical ultrasound gel is conductive, enabling its use not only for ultrasound but also for applications such as electrotherapy, EMS, or TENS.It's no coloring and no fragrance.
It is easy to apply, leaving a smooth, non-sticky feeling. Suitable for all skin types and mucous membranes, it is advertised as 100% vegan and free from parabens, fragrance, and dyes.
Its ingredients, specifications, and packaging can be customized to suit your different application needs.
Where to Buy Ultrasound Gel?
In most countries, ultrasound gel can be purchased in pharmacies, online stores like Amazon, or specialized medical supply stores. If you are interested in wholesale or custom orders, you can do so through official website.
What Is Ultrasound Gel Used For?
Short answer: Ultrasound gel allows sound waves from the transducer to penetrate the body.
Detailed explanation:
Ultrasonic waves do not interact well with air-they scatter when traveling through air, which decreases the reflected signal. To prevent this, air must be minimized or eliminated between the transducer and the skin.
Ultrasound gel removes air gaps, reducing "acoustic impedance" (which is high in air and low in fluids, fat, or muscle) and allowing sound waves to travel unimpeded, resulting in clearer images.
This short explanation aims to clarify the importance of ultrasound gel. For more detailed information, the author recommends the NYSORA article.
What Are Ultrasound Gel Alternatives?
Sometimes people ask, "What can I use instead of ultrasound gel?"Simple answer: Anything that removes air between the transducer and the skin.
Requirements for alternatives:
No damage or irritation to the skin
No damage to the transducer
Clean, reliable product
No staining
Should not dry too fast
Should not flow away
Possible alternatives:
Water (may flow away and dry quickly)
Disinfectants (must be compatible with transducer and non-irritating)
Lotions (may not be safe for transducers)
What Is Ultrasound Gel Made Of?
People wondering about the composition of ultrasound gel might be interested to know that its main ingredient is water.
Additional ingredients are used to give it the right consistency, including:
Propylene glycol (for consistency and stickiness)
Polyacrylic acid / Carbomer (thickener)
Sodium hydroxide (for viscosity)
Benzyl alcohol (antibacterial and antifungal agent)
Despite the chemical names, ultrasound gel is non-toxic and safe for skin contact, including wounds.
Sterile ultrasound gel contains the same ingredients as non-sterile versions but has been sterilized and packaged in airtight containers.