Wireless Handheld Ultrasound: Comparison by Expert Doctor

The portability and utility of wireless handheld ultrasound devices are gaining popularity due to their convenience, efficiency, and cost. Depending on the user’s needs, these may only partially replace cart-based ultrasound machines. Here, we summarize the features and reviews of 3 wireless handheld ultrasound devices to inform your purchasing decisions.

Understanding Wireless Handheld Ultrasound Devices

Wireless handheld ultrasound devices are portable, user-friendly tools for point-of-care and specialty applications. Each consists of a transducer and a hand-held base. Many probe styles are available, but most have linear, curved, or phased array probes.

The devices are typically battery-powered, allowing for maximum convenience. Many can do M-mode, B-mode, and Doppler imaging. Within device limits, you can adjust settings to improve the images.

Wireless handheld ultrasound devices are cheaper than cart-based machines, making imaging more accessible for patients. Healthcare providers only need basic training to use them. Various devices on the market have different features. These features include FDA approval, subscriptions, resolution, penetration depth, and data storage and privacy compliance.

Butterfly iQ3

This third-generation Butterfly probe promises improved image quality and processing, faster scan times, and AI incorporation. It received US Food & Drug Administration approval at the beginning of 2024.

Features

The Butterfly iQ3 includes a single probe that users can easily convert to linear, convex, or phased transducers. The device can perform B- and M-mode scans with color Doppler, power Doppler, and pulsed-wave Doppler imaging. Scanning depths range from 1 cm to 30 cm and are adjustable using the touch screen by sliding a finger up or down.

The Butterfly iQ3 lasts 2 hours and charges entirely in 90 minutes (from 10% to 90%). From 0% to 100%, the battery requires 5 hours of charging using the included wireless charger.

Performance

The iQ3 has two 3D imaging tools. The first tool is iQ Slice, which captures up to 46 slides simultaneously. The second tool is iQ Fan, a lung tool for visualizing lung conditions using virtual fanning.

These updated features make POCUS easy to use for traditionally complex scans. The software can calculate pelvic and bladder volumes and ejection fractions automatically, making assessments quick and straightforward. The app, which you can download from Google Play and Apple App Store, allows you to adjust the resolution. You can change the depth in the software and on the probe itself, but it may cause a slight jump in the image.

In cardiac imaging, users report that endocardial borders are more delineated compared to its predecessor, the iQ+. Sharper images are also obtained when the iQ3 is tested on the trachea, thyroid, lung, surrounding soft tissue, and ribs.

Highlighting quickly visualizes B-lines, so we reliably detect lung sliding. Use the abdominal preset to see the bottom of the lung, as the lung preset is best for A-line and B-lines.

Usability

This lightweight (309 g) device is ergonomic and durable, and it has a 500 GB hard disk for image storage. The single probe can perform linear, curved, and phased array imaging. You can quickly achieve whole-body imaging with 20 presets, elastography, biplane imaging, and tissue Doppler imaging.

The device features a high-resolution LED screen with enhanced contrast resolution and blood flow detection. The software connects to the probe quickly. Four linear digital calipers, one elliptical caliper, and a midline marker are easy to read and use. The iQ3 software has 24 exam presets, trapezoidal imaging, and on-screen annotation, making efficiency a priority.

Butterfly pays fees to store data in Amazon Web Services data centers. The plus side is that data transfer rates are twice that of its predecessor.

One great thing about the iQ3 is how easy it is to switch between soft tissue scans and echocardiography. The device is also capable of needle visualization, OB calculations, and five labeling protocols. Configurable control buttons on the device make it customizable to improve efficiency.

Cost

The cost of the Butterfly iQ3 is $3,899.

An annual subscription is priced based on the user type (individual users for $299 – $420 or 5-seat clinics for $3,500). Individual users receive unlimited cloud storage, M-mode and color Doppler capabilities, and educational videos and courses. Individual users who choose the advanced technology subscription also receive imaging and AI tools, including Auto Bladder Volume and Auto B-lines.

iQ and iQ+ probe trade-ins are accepted for a credit of up to $1,500

Philips Lumify

Launched in 2015, Philips Lumify was a groundbreaking, versatile ultrasound device for healthcare professionals. It rapidly set the standards in a growing field of handheld ultrasound devices.

Features

There are three probe models for the Philips Lumify: S4-1, L12-4, and C5-2. Each transducer is designed for specific clinical applications. No hockey stick probe is available for this device:

• Lumify S4-1: phased array transducer with scan depth up to 24 cm and footprint of 20.2 mm
• Lumify L12-4 is a linear array transducer for shallow scans, with a depth of up to 12 cm and a size of 34 mm.
• Lumify C5-2: curved array transducer for more profound applications with scan depth up to 30 cm and footprint of 50 mm

The models have 2D, pulsed wave and color Doppler with M-mode, advanced XRES, and multivariate harmonic imaging. Black-and-white imaging is also possible with all three probes. The S4-1 and L12-4 models have B-line detection in lung imaging, while SonoCT enhances the L12-4 and C5-2 models.

The battery life is longer than other handheld devices, at about 6 hours. Probes use the battery of the device to which they are connected.

Performance

Preset functions require minor adjustments. However, there is no adjustable focus zone.

Overall, capturing images and loops is straightforward, requires little reference to a manual, and is amenable to beginner users.

Experienced sonographers cannot adjust the frequency on the Lumify as it is automatically set based on depth and pre-sets. As with other devices, image quality suffers with increased depth. Color Doppler is a standard feature, but power and pulse wave Doppler are not available with Lumify.

Color coding accurately visualizes portal flow in liver scans. Although cardiac imaging is sufficient using the curved probe, the S-4 probe is superior when used with the echo presets.

The grayscale range is broad when tested in an apical four-chamber window. Pleural sliding is visible in the lung. Elastography and needle visualization are not possible with the Lumify.

A study compared three devices: Lumify, Butterfly iQ3, and Vscan Air. Lumify had the highest satisfaction for image quality, scoring well in detail resolution, contrast resolution, and clutter. According to one user on The Sports Medicine Review, “The most superficial structures such as the carpal tunnel took some time to adjust after using a hockey stick probe in fellowship, but I am not comfortable using the linear probe for these.”

Usability

The Lumify is simple to use, with adjustable settings on both sides of the screen. You can measure depth using a ruler on the side of the screen and add annotations to images quickly. Clearly label features and seamlessly integrate with software applications. Cine loops of up to 10 seconds are captured rapidly, adjustable using the touch screen, and saved as MP4 files.

The Lumify transducer connects to an Android device via a MicroB USB cord, which is included with its purchase. The cord is replaceable, thereby avoiding wiring failure.

The Lumify is also compatible with Apple devices. However, a Lumify power module must interface between the probe and the device.

The application is downloadable from Google Play and is intuitive to set up and use. Only one touch is required to start an ultrasound examination. However, Lumify probes have no probe controls.

The handheld probe is very light and easy to use. Its carrying case holds a 10-inch tablet and two probes. Extra room is provided for a bottle of gel and cords.

You can share data securely with “Reacts” for $635 for three years or $1,060 for five years. The system follows HIPAA rules and allows live-stream imaging, including audio, for unparalleled collaboration, albeit with fast broadband required.

Images can also be shared securely via email, DICOM PACS, or shared server. The system does not automatically save images to a cloud storage system. Some users are frustrated because they can only email up to 4 scans that are 4 seconds or less in length. More scans have to be split among more than one email.

Cost

A single probe costs about $6,000, making the cost a possible barrier to use.

Subscriptions are $1,200 for six months with an additional warranty cost of $450. Longer subscriptions are less expensive per month. You can purchase subscriptions in 6-month increments, up to 24 months, for $3,360 with a $1,800 warranty.

GE Vscan Air

GE introduced the first Vscan in 2010, and over 30,000 are currently used. The Vscan Air pushed advancement even further with improved portability and user interface.

Features

Two probes are available for the Vscan Air: the CL and SL models. Flip the probe to change probe types for each model without changing probes between and during exams.

Vscan Air CL: dual head probe with linear transducer (maximum depth of 8 cm) and curved transducer (maximum depth of 24 cm)

Vscan Air SL: dual head probe with sector array transducer (maximum depth of 24 cm) and straight transducer (maximum depth of 8 cm)

Both models are capable of B and M mode scans, color Doppler, and pulsed wave spectral Doppler.

Performance

The software is easy and intuitive to use. Upon opening, it quickly identifies the probe and is ready for scanning. Lung and heart imaging is clear and practical, using a probe that narrows its width to show clear images of significant structures. The color Doppler imaging rivals cart-based machines.

Although the device receives generally positive reviews for cardiac imaging, it cannot take cardiac measures like TAPSE or EPSS. Some users have reported probe warming as an issue with wireless connectivity. Other users note that the location of the probe’s power button can be problematic while scanning.

Some users disliked the width of the phase array probe, which prohibited access to smaller areas. The device captures musculoskeletal structures well. However, heating the probe becomes problematic within about 10-15 minutes.

Usability

The device comes with a small Android device but can also work with Android or Apple phones and tablets. You can download the app from Google Play or the Apple App Store. Images are stored within the system’s DICOM TLS 1.3 without a subscription.

A study compared three devices, finding that the Vscan Air had the highest satisfaction for ease of use. The Vscan Air scored well for its physical characteristics and maneuverability, likely because it is lightweight at 205 g. It also has several functional advantages compared to other devices. Most recently, we added Caption AI to enable guidance of probe placement.

The Vscan SL also has an AutoEF function automating the calculation of left ventricular ejection fraction. However, unlike the Butterfly IQ, it does not calculate bladder volume.

The Vscan has a long battery life of up to 50 minutes. Using a wireless charger or corded charging, you can recharge it in just 75 minutes. Some users have reported heating issues, but it does not affect the device’s usability.

Cost

The GE Vscan Air costs $4,855, including the 3-year warranty.

A digital tools subscription (optional) costs $430 for one year or $1,165 for three years.

Let’s compare the Butterfly iQ3, Philips Lumify, and GE Vscan Air wireless handheld ultrasound devices based on expert reviews, detailed specifications, and other critical factors.

Mindray TE Air Handheld Ultrasound

The Mindray TE Air Handheld Ultrasound is a compact, portable device that has revolutionized point-of-care diagnostics. Its lightweight and wireless design makes it easy for healthcare workers to perform ultrasounds. They can do this anywhere, whether at the bedside or in the field.

Features

The Mindray TE Air Handheld Ultrasound offers a blend of portability and advanced imaging technology. This device is lightweight and easy to carry.

Hospitals and clinics can use it. Also suitable for remote areas for medical purposes. It features high-resolution imaging with advanced color Doppler capabilities, providing detailed and accurate diagnostics.

The device is compatible with both Android and iOS, ensuring flexibility in use. Healthcare professionals can rely on this durable and reliable choice. It has a long-lasting battery and a water-resistant design. The easy-to-use interface allows for quick and precise care delivery anywhere.

Cost

The Mindray TE Air Handheld Ultrasound is competitively priced, offering substantial value for its advanced features and portability. This product is more expensive than basic handheld devices. However, the higher initial cost is worth it.

This is because it offers better image quality and has many uses. Maintenance costs are minimal because of its robust design and fewer moving parts, leading to lower long-term expenses.

The device’s durability and regular software updates further enhance its cost-effectiveness. Healthcare providers, from large-scale hospitals to small-scale clinics, can access financing and leasing programs to help with costs.

Usability

Designed with the user in mind, the Mindray TE Air Handheld Ultrasound is exceptionally user-friendly. Its setup process is straightforward, requiring minimal training, making it suitable for a wide range of healthcare professionals. The intuitive touch-screen interface on connected devices allows for quick access to settings and modes, improving workflow efficiency.

Its versatility across various medical applications, such as emergency care, obstetrics, and musculoskeletal assessments, adds to its usability. The device works fast and quietly. It does not cause discomfort. This makes it easy for both the patient and the operator to use.

Performance

The Mindray TE Air Handheld Ultrasound excels in performance, delivering high-resolution images with precision. The high-tech imaging technology works well in tough situations like emergencies or when scanning overweight patients. Its fast processing speed and minimal lag enable swift diagnostics, crucial for time-sensitive medical decisions.

A robust wireless connection supports the device’s consistent performance, ensuring secure data transmission and minimal downtime. Regular updates help the device stay up-to-date with the latest technology. This ensures that it continues to be a top performer in handheld ultrasound technology.

Conclusion

In conclusion, wireless handheld ultrasound devices such as the Butterfly iQ3, Philips Lumify, and GE Vscan Air represent substantial advancements in medical imaging technology. Each device has distinct features, strengths, and potential limitations.

The Butterfly iQ3 is excellent for medical situations with its flexible probe and advanced imaging technology.

Philips Lumify is popular with healthcare professionals because it has clear images and is easy to use. The GE Vscan Air impresses with its portability and user-friendly interface, which is particularly beneficial for cardiac and musculoskeletal imaging.

Each ultrasound device has unique features. The best choice depends on clinical needs, budget, and user preferences. As technology advances, portable solutions will become more important for patient care. They provide high-quality imaging that improves diagnosis and patient outcomes.

Summary

Each device has its strengths:

• Butterfly iQ3: Best for versatility with its single probe covering multiple imaging modes and relatively lower price.
• Philips Lumify: This product offers the best image quality with interchangeable probes, suitable for high-end professional use despite its higher cost.
• GE Vscan Air: This scanner is excellent for its dual-probe design and ease of use, balancing price and features.

FAQs