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Because it doesn’t use ionizing radiation and can be delivered noninvasively, focused ultrasound is a tantalizing treatment modality. Although its approved medical uses are limited, many researchers and clinicians expect that it will one day offer numerous treatment possibilities, particularly for brain diseases. This month’s e-News Exclusive takes a look at current efforts to make focused ultrasound more accurate and more accessible.
Does your facility use focused ultrasound for treatment? Let us know on Twitter and/or Facebook.
Enjoy the newsletter.
— Dave Yeager, editor |
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Advancements in Focused Ultrasound Promise Cost-Effective Brain Treatment
Focused ultrasound, often with MR guidance, has shown promise for treating brain diseases. Currently, it is FDA approved to treat essential tremor, and work is ongoing to expand its range of possibilities. There is hope that focused ultrasound may become more useful for other brain diseases, as well, including cancer. One of the main drawbacks of MR-guided focused ultrasound, however, is that MR is an expensive, time-consuming test. To address this challenge, a group of interdisciplinary researchers at Georgia Institute of Technology (Georgia Tech) are testing the parameters of delivering focused ultrasound to the brain without MR guidance.
The projects, which are sponsored by the National Science Foundation, use ultrasound-based methods to measure the contours and density of the skull and focus ultrasound beams precisely in the brain. Because distances as small as 1 mm are significant in brain anatomy, precise focus is essential. Four different labs are conducting research to improve the process.
The lab of Brooks Lindsey, PhD, an assistant professor in the Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, is investigating the effects of bone microstructure, specifically the porosity of the trabecular bone layer, on ultrasound imaging. The lab has recently characterized the effect of skull microstructure and angle of incidence on transcranial ultrasound imaging, including ultrafast plane wave Doppler imaging, which can be used for imaging blood flow in large cerebral arteries in stroke patients.
Full story » |
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Analyze This
As inevitable growing pains accompany the advancement of AI and machine learning in radiology, analytics is playing an indispensable role in smoothing the way. Read more »
Which Niche?
We take a look at ways a number of practices are addressing the variables—accessibility, licensing, credentialing—associated with teleradiology. Read more »
On the Case
A 69-year-old patient presents with amyloidosis of the breast. Read more »
Not Hacking It
COVID-era accommodations have necessitated additional safeguards against hackers. Read more » |
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Imaging Mass Cytometry Maps Bowel Disorders at Cellular Level
The University of Pennsylvania reports that, by binding specific antibodies to several distinct antigens, imaging mass cytometry facilitates high-resolution mapping of all cell types in a specific region. The new technique represents a breakthrough in the prompt, accurate diagnosis of bowel disorders, according to an article in Gastroenterology.
AI-Assisted Drones Make Major Advancements in Landmine Detection
Columbia University personnel report that an imaging initiative has modernized the traditionally dangerous and cost-prohibitive methods of clearing minefields. According to James Madison University in Virginia, the initiative has boosted the ability of airborne drones to locate landmines with better than 90% effectiveness.
Time-Correlated Single Photon Counting Likened to Quantum Stopwatch
TCSPC, pioneered by the University of Colorado Boulder, reportedly magnifies time in a manner comparable to a microscope magnifying images. The technique can interpret the speed of photons on a scale of quadrillionths of a second, thereby promising never-before-seen clarity on the tiniest of particles, according to findings published in Optica.
Thermal Imaging Reveals Missing Youngster’s Hideout
A desperate, all-hands-on-deck search for a missing Scottish schoolboy ended with tears of relief as thermal imaging scans detected the boy hiding in his grandmother’s attic. The child, 7, had lasted the cold night by wrapping himself in insulation, remaining hidden as authorities feared the worst, according to The National. |
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“Human engineers might also learn from this biological trick. The hardness of ant teeth, for example, increases from about the hardness of plastic to the hardness of aluminum when the zinc is added. While there are much harder engineering materials, they are often more brittle.”
— Robert Schofield, of the University of Oregon, regarding a subatomic analysis of ways zinc is harnessed as a tool in the insect kingdom, as published in Scientific Reports |
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