Safety and Effectiveness of the Ultrasonic Propulsion of Kidney Stones
Last updated on July 2021Recruitment
- Recruitment Status
- Recruiting
- Estimated Enrollment
- 15
Summary
- Conditions
- Kidney Stones
- Nephrolithiasis
- Urolithiasis
- Type
- Interventional
- Phase
- Not Applicable
- Design
- Allocation: RandomizedIntervention Model: Parallel AssignmentMasking: Single (Outcomes Assessor)Masking Description: Outcome Assessor evaluating the images/videos for stone motion is blind to the exposure condition.Primary Purpose: Basic Science
Participation Requirements
- Age
- Between 18 years and 125 years
- Gender
- Both males and females
Description
Our research group has developed a new, non-invasive technology using low intensity focused ultrasound to reposition kidney stones by imparting sufficient acoustic energy to physically move a stone. The focused ultrasound pulses are similar to pulses that may be used in elastography or acoustic radi...
Our research group has developed a new, non-invasive technology using low intensity focused ultrasound to reposition kidney stones by imparting sufficient acoustic energy to physically move a stone. The focused ultrasound pulses are similar to pulses that may be used in elastography or acoustic radiation force imaging. Like conventional ultrasound, the probe is placed in contact with the patient's skin to image the stone following standard ultrasound imaging procedure. The same probe is then used to focus the ultrasound and apply a burst (a sequence of pulses) of acoustic force to push the stone. Brightness mode (B-mode) imaging is interleaved with the "pushing" pulses (Push-mode) to monitor stone movement. The user controls the burst amplitude. For patient safety, there is a slight delay before the operator can execute the next push.
Tracking Information
- NCT #
- NCT02028559
- Collaborators
- Not Provided
- Investigators
- Principal Investigator: Jonathan Harper, MD University of Washington
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