Abstract: A therapy system comprises a therapy module to perform successive deposits of energy in a target zone, the therapy system being provided with a control module is configured to prior the deposits of energy produce an a priori estimate of the induced heating. For example a thermometry module is provided to measure temperature in a measurement field. The induced heating may be derived on the basis of a tissue model from the settings of the therapy module. In particular the therapy module is a high-intensity focuses ultrasound transmitter. A magnetic resonance examination system configured for thermometry is employed as the thermometry module.