METHOD AND SYSTEM FOR PARAMETERISING A HIGH-INTENSITY FOCUSED ULTRASOUND TREATMENT DEVICE

The present invention relates to a parameterising method and system (100) integrated within a high-intensity focused ultrasound (HIFU) treatment device. The parameterising system comprises a real-time simulation unit (140) that makes it possible to predict, on the basis of geometric and physiological parameters of tissue regions in the area to be treated, on the one hand, and treatment parameters, on the other hand, the distribution of the ultrasound field within said area. The calculation is performed in real time by means of a metamodel: the ultrasound field is estimated from an interpolation of maps of the ultrasound field which are pre-calculated and stored in a database, the maps being associated with different values of the geometric and physiological parameters of the tissue regions in question. The thermal dose applied at each point during treatment is subsequently calculated and the tissue response is estimated. It is possible for the practitioner to check at any time that the simulated treatment is being used in accordance with tissue regions to be necrotised and tissue regions to be spared. The treatment parameters can be iteratively adjusted in order to conform to said objective.