Modulation of transducer amplitude and phase distributions for controlled application of radiation force to an object
AssigneesUniversity of Washington, Sonomotion, Inc.
InventorsAdam D. Maxwell, Doug Corl
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Abstract
Disclosed herein are ultrasound systems comprising a plurality of transducers configured to work in concert to produce a customizable beam profile through the additive effects of multiple pulses. As an example, uniform and wide beam profiles can be generated using transducer elements that cannot independently generate such beam profiles. Related methods, systems, and computer-readable media are all disclosed.
Claims20
A method for applying ultrasound energy to an object disposed in a patient, the method comprising applying ultrasound energy within a treatment comprising a plurality of therapy exposures, wherein the ultrasound energy is applied to the object using a segmented transducer having a plurality of elements excited by a plurality of phasing profiles;
- wherein, during a single therapy exposure comprising a series of ultrasound pulses over an exposure time, the plurality of phasing profiles is applied to the plurality of elements to generate a plurality of intensity profiles;
- and
- wherein, during the single therapy exposure, the plurality of phasing profiles exciting the plurality of elements collectively generates an ultrasound beam having a time-averaged intensity profile that is generated over a larger area or more uniform than a comparative time-averaged intensity profile generated by the plurality of elements but without the plurality of phasing profiles.
Dependencies are inferred from the claim text.