Michael Bailey
· Senior Principal Engineer, Applied Physics LaboratoryUniversity of Washington · Mechanical Engineering
Active 1980–2025
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About
Michael Bailey is an Associate Professor of Mechanical Engineering at the University of Washington, with an adjunct appointment in Urology. His research areas include dynamical systems and mechatronics, fluids and thermal sciences, and biomedical science and technology. His work focuses on engineering and health, integrating principles from mechanical engineering with biomedical applications to advance understanding and innovation in these fields.
Research topics
- Artificial Intelligence
- Machine Learning
- Computer Science
- Mechanical engineering
- Internal medicine
- Computer vision
- Engineering
- Human–computer interaction
- Surgery
- General surgery
Selected publications
Noninvasive acoustic manipulation of objects in a living body
Proceedings of the National Academy of Sciences · 2020 · 141 citations
Senior authorCorrespondingIn certain medical applications, transmitting an ultrasound beam through the skin to manipulate a solid object within the human body would be beneficial. Such applications include, for example, controlling an ingestible camera or expelling a kidney stone. In this paper, ultrasound beams of specific shapes were designed by numerical modeling and produced using a phased array. These beams were shown to levitate and electronically steer solid objects (3-mm-diameter glass spheres), along preprogramm…
Removal of Small, Asymptomatic Kidney Stones and Incidence of Relapse
New England Journal of Medicine · 2022 · 68 citations
BACKGROUND: The benefits of removing small (≤6 mm), asymptomatic kidney stones endoscopically is unknown. Current guidelines leave such decisions to the urologist and the patient. A prospective study involving older, nonendoscopic technology and some retrospective studies favor observation. However, published data indicate that about half of small renal stones left in place at the time that larger stones were removed caused other symptomatic events within 5 years after surgery. METHODS: We condu…
First Series Using Ultrasonic Propulsion and Burst Wave Lithotripsy to Treat Ureteral Stones
The Journal of Urology · 2022-10-07 · 22 citations
articleOpen accessPURPOSE: Our goal was to test transcutaneous focused ultrasound in the form of ultrasonic propulsion and burst wave lithotripsy to reposition ureteral stones and facilitate passage in awake subjects. MATERIALS AND METHODS: Adult subjects with a diagnosed proximal or distal ureteral stone were prospectively recruited. Ultrasonic propulsion alone or with burst wave lithotripsy was administered by a handheld transducer to awake, unanesthetized subjects. Efficacy outcomes included stone motion, ston…
Phase holograms for the three-dimensional patterning of unconstrained microparticles
Scientific Reports · 2023-06-06 · 16 citations
articleOpen accessSenior authorAcoustic radiation forces can remotely manipulate particles. Forces from a standing wave field align microscale particles along the nodal or anti-nodal locations of the field to form three-dimensional (3D) patterns. These patterns can be used to form 3D microstructures for tissue engineering applications. However, standing wave generation requires more than one transducer or a reflector, which is challenging to implement in vivo. Here, a method is developed and validated to manipulate microspher…
The Journal of Urology · 2024-08-15 · 6 citations
articleOpen accessPURPOSE: Ultrasonic propulsion is an investigational procedure for awake patients. Our purpose was to evaluate whether ultrasonic propulsion to facilitate residual kidney stone fragment clearance reduced relapse. MATERIALS AND METHODS: This multicenter, prospective, open-label, randomized, controlled trial used single block randomization (1:1) without masking. Adults with residual fragments (individually ≤5 mm) were enrolled. Primary outcome was relapse as measured by stone growth, a stone-relat…
Recent grants
NIH · $1.6M · 2015
In-Office, Ultrasound-Based Breakage and Removal of Urinary stones
NIH · $66.8M · 1997–2025
Frequent coauthors
- 374 shared
Oleg A. Sapozhnikov
University of Washington Applied Physics Laboratory
- 299 shared
Vera A. Khokhlova
Lomonosov Moscow State University
- 276 shared
Lawrence A. Crum
NOAA National Marine Fisheries Service Northeast Fisheries Science Center
- 245 shared
Adam D. Maxwell
- 223 shared
Wayne Kreider
- 197 shared
Bryan W. Cunitz
University of Washington Applied Physics Laboratory
- 176 shared
Mathew D. Sorensen
- 150 shared
Barbrina Dunmire
Awards & honors
- Inventor of the Year (year not specified)
- UW School of Medicine honor for kidney stone work (year not…
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