System for the ablation or the monitoring of a zone of the heart by ultrasounds and associated methods

Abstract

The invention relates to a system for the ablation or the monitoring of a zone of the heart by ultrasounds, comprising: a means for measuring the electrical activity of the heart in order to acquire an electrocardiogram (ECG); a phased array for generating a beam of focussed ultrasound signals (Fus) on at least one targeted zone (Zc) of the heart; an imaging system determining an image of a transcostal wall projected in an image plane of the phased array (RES_US) by taking into consideration the position and the direction of the phased array and making it possible to deactivate elements of the phased array in accordance with the position of said elements with regard to the position of the projected image of the transcostal wall; a positioning system coupled with the phased array (RES_US) so as to control the position of at least one focussed zone of at least one beam of focussed ultrasound signals (Fus) on the position of the at least one targeted zone (Zc), a monitoring system capable of measuring a temperature and a tissue deformation in the targeted zone (Zc); and a device for measuring a level of cavitation in the targeted zone.

Description

technical field [0001] The field of the invention relates to methods for monitoring a focused beam of ultrasound signals, to establish calibration of said beam and to establish activity monitoring, during resection procedures of various regions of the heart. Furthermore, the field of the invention relates to methods of ablation from ultrasound signals. Furthermore, the field of the invention relates to systems enabling implementation of the method of the invention. Background technique [0002] Today, different regimens exist that can treat the heart rhythm disorder, called "arrhythmia." One option for treating the areas that cause the heart to malfunction is to resect the latter. [0003] Resection of organ regions may be performed through an intracardiac catheter introduced into the organ. In this particular case, the surgery is followed by an imaging system to guide the resection. A disadvantage when performing this procedure in the heart is that it requires considera...

AI Technical Summary

Problems solved by technology

The method thus requires permanent electrode calibration on the patient and considerable computational expense in detecting arrhythmogenic regions

[0010] This approach demonstrates that monitoring of temperature is possible, but does not allow for real-time monitoring of some parameters before or during resection, which would allow for a safer resection procedure and limit damage, possibly resulting in areas accompanying resection of the area of ​​interest. the damage

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