18-04-2013 дата публикации
Номер: US20130096597A1
Energy is transferred () to cause a mechanical property of biological tissue to change, as in ablation. An effect of the transferring is examined in more than one spatial dimension to, for example, make an ablation halting decision for a treatment region, i.e., line () or layer (), or for a location () within the region. Halting decisions can be based on lesion-central and/or lesion-peripheral longitudinal displacement of treated tissue evaluated in real time against a characteristic curve. Steering in the azimuthal and/or elevation direction is afforded by, for example, linear, or 2D, multi-channel ultrasound arrays for therapy and imaging. Protocols includable are region-wide scanning (SI ) and location-by-location completion for both (HIFU) therapy and tracking (acoustic-radiation-forced-based) displacement of treated tissue. Fine, location- to-location monitoring can be used for relatively inhomogeneous tissue; whereas, quicker, sparser and more generalized monitoring () can be employed for relatively homogeneous tissue. 1115110125130304844. A control device () for an ablation system that includes an ablation unit () , the ablation unit including a multi-element diagnostic array () placed confocally with a therapy array () that issues a therapy beam for transferring energy for changing a mechanical property () of biological tissue , said therapy beam having a most recent focus () , said control device comprising:{'b': '135', 'a combination multi-channel high power amplifier and matching network module ();'}{'b': '140', 'a triggering and control logic module (); and'}{'b': '145', 'a multi-channel ultrasound data acquisition and analysis module (),'}{'b': '140', 'wherein the triggering and control logic module () outputs triggering and control signals to synchronize timing and electronic steering of three types of acoustic beams, including therapy beams, push beams, and tracking beams, that are interspersed,'}{'b': 135', '140', '130', '830, 'further wherein the ...
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