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.

Abstract: A phantom (50) is positioned on a patient support couch (16) of a diagnostic imaging scanner (10). The phantom includes a plurality of diagnostically imageable elements (52) which are mounted in a fixed relationship such that when projections are made along three orthogonal axes, the projections of the diagnostically elements along each axis are non-overlapping. At least three markers (56) on the phantom are monitored by infrared sensitive cameras (30, 32) or other pick-up devices and the location of the markers in image guided surgery (IGS) space is determined (36). From a priori information about the structure of the phantom, the geometric centers of the imageable elements is determined and projected (64) along the coordinate system axes of IGS space. The phantom is imaged by the diagnostic imaging system to generate projections of the diagnostically imageable elements along each of three coordinate axes of diagnostic image space.