Category Archives: High-Frequency Clinical and Preclinical Imaging

Exploring the Future of Ultrasound: 5 Trends to Watch

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Ultrasound technology has come a long way since its inception and continues to evolve at a rapid pace. As we look ahead to the near future, it’s clear that ultrasound will play an even more vital role in healthcare. In this blog post, we’ll explore 5 trends (in no particular order) that are set to shape the field of ultrasound in the coming years.

1. Portable and Handheld Ultrasound Devices

The trend of portable and handheld ultrasound devices is on the rise. In the past, ultrasound machines were hundreds of pounds, carted around on wheels, and costly to manufacture. These new, compact, and lightweight devices offer healthcare professionals the convenience of conducting ultrasound examinations at the patient’s bedside, in remote areas, or during emergency situations, and wearable devices will become part of the ultrasound tool kit. Their affordability and ease of use make them accessible to a broader range of healthcare providers, expanding the potential applications of ultrasound. I predict that, under a doctor’s care and orders, the ways in which ultrasound is used will expand!

2. Artificial Intelligence (AI) Integration

AI is revolutionizing the field of medical imaging, and ultrasound is no exception; however, sonographers and doctors are not going anywhere. AI algorithms can assist in image analysis, automate measurements, enhance quantitative imaging, and aid in the detection of abnormalities. In the near future, we can anticipate more sophisticated AI integration into ultrasound systems, which will not only enhance diagnostic accuracy but also improve workflow efficiency. AI will play a significant role in making ultrasound more accessible and reliable in terms of scanning, reading images, and delivering accurate results.

3. 3D and 4D Imaging

Three-dimensional (3D) and real-time 3D (4D) ultrasound imaging will continue to advance, providing clinicians with more detailed and interactive views of anatomical structures. This trend will be particularly valuable in obstetrics for capturing fetal development and in various other medical specialties where enhanced visualization and quantification are crucial. Expect to see more applications for complex anatomical assessments and dynamic studies.

4. Point-of-Care Ultrasound (POCUS)

Point-of-care ultrasound, or POCUS, is transforming the way medical professionals diagnose and manage patients. POCUS is expected to see increased adoption in various clinical settings, including emergency medicine, anesthesiology, primary care, and critical care. As training programs expand, more healthcare providers will be equipped to use POCUS for rapid and accurate assessments, which can lead to improved patient care and outcomes on the spot. With increased adoption, interest in ultrasound practice accreditation in this area is rising.

5. Therapeutic Ultrasound Applications

Beyond its diagnostic role, ultrasound is making great advances in therapeutic applications. Techniques like High-Intensity Focused Ultrasound (HIFU) are being employed for noninvasive surgeries, cancer treatments, and targeted drug delivery. In the coming years, we can expect to see further developments in therapeutic ultrasound, offering less invasive treatment options for a wide range of medical conditions and increasing the potential for ultrasound theranostics.

The future of ultrasound is incredibly promising with these 5 trends at the forefront of its evolution. From portable devices and AI integration to advanced imaging techniques and expanding applications in point-of-care and therapeutics, ultrasound is set to become even more integral to modern healthcare. Stay tuned as these trends continue to shape the landscape of medical imaging and patient care. We’re excited to witness the many possibilities that lie ahead for this versatile technology.

Therese Cooper, BS, RDMS, is a sonographer and the Director of Accreditation at the American Institute of Ultrasound in Medicine.

High-Frequency Ultrasound: Photoacoustic Imaging

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Sonographers generally think of diagnostic ultrasound in the frequency range of approximately 2–22 MHz, but with high-frequency ultrasound, there is the capability to image up to 70 MHz. High-frequency ultrasound has great resolution but the main limitation is the lack of imaging depth. Today, it can be used in preclinical applications, such as nanoparticle and animal work, and in clinical applications, such as dermatologic, musculoskeletal, vascular, and rheumatologic settings.

In small animal protocols, multiple novel ultrasound imaging modes can be applied, including color and power Doppler, contrast-enhanced ultrasound, photoacoustic imaging, and more.

What is photoacoustic ultrasound?

To put it simply, light goes in, sound waves come out. Photoacoustic imaging uses light energy that is absorbed into the tissue, produces a thermoelastic expansion, and creates pressure, ie a soundwave. This sound wave is detected by an ultrasound transducer and subsequently produces an ultrasound image. An example of a pre-clinical application of photoacoustic imaging is to evaluate the oxygenation levels in tumors using the oxygen saturation calculation.

Preparing for Photoacoustic Ultrasound Imaging of Small Animals

A common use of photoacoustic imaging is to examine small animals, as the depth needed is minimal and the images can have a very high resolution.

In any small animal study, before sedating any of the animals for photoacoustic imaging, there are a few key steps to take:

  • Study the anatomy of the kind of animal you will be scanning.
  • As needed, remove hair from the area to be scanned.
  • Allow time for the laser to warm up and optimize prior to photoacoustic imaging.
  • Adjust ultrasound transducers and machine presets.
  • Set up your equipment to be as ergonomic as possible; animal scanning often takes a long time due to the high volume and may include a lot of small, fine movements.
  • Gather supplies.

It is also extremely important to align the stage and transducer before sedating the animal because animals are often compromised under anesthesia. So, keep in mind how many modalities will be needed and that the animals should remain under the anesthesia for a limited amount of time.

In addition to preparing the scanning area for the animals, prepare your own area to ensure you have good ergonomics. In many small animal studies, the long duration of high-volume, fine movement scanning without proper ergonomics could become very difficult.

Once all of the preparations have been completed, sedate the animal and secure it to the stage to ensure the animal will not move during imaging.

Now it is time to scan!

To learn more, see the American Institute of Ultrasound in Medicine’s (AIUM’s) on-demand webinar with speaker Corrine Wessner, “High-Frequency Ultrasound & Photoacoustic Scanning: Perspective From a Research Sonographer”, from which this post was adapted. AIUM members can access the webinar for free.

Interested in learning more about high-frequency ultrasound and photoacoustic imaging? Check out the following resources from the American Institute of Ultrasound in Medicine (AIUM):