A temperature distribution measuring apparatus for measuring a temperature distribution within an object caused by heating the object, the temperature distribution measuring apparatus comprising: - a temperature distribution measuring unit (13, 71) for measuring the temperature distribution in a measurement region within the object, while the object is heated, wherein the temperature distribution measuring unit (13, 71) comprises an ultrasound probe for acquiring ultrasound data of the measurement region and an ultrasound thermometry unit for determining the temperature distribution within the measurement region based on the acquired ultrasound data, - a model providing unit for providing a model of the object describing a model temperature distribution a) in the measurement regions for time periods, in which the respective temperature distribution has been measured in the respective measurement region, and b) in the measurement regions for time periods, in which the respective temperature distribution has not been measured in the respective measurement region, and/or in a non-measurement region within the object, in which a temperature distribution is not measured, and - a temperature distribution estimation unit for determining estimated temperature distributions in the different measurement regions for time periods, in which the respective temperature distribution has not been measured in the respective measurement region and/or in the non-measurement region based on the measured temperature distributions by using the provided model, characterised in that the apparatus further comprises a temperature measurement control unit adapted to determine whether the measured temperature distribution in the measurement region includes a temperature outside a predefined temperature range and to control the temperature distribution measuring unit (13, 71) such that the measurement region is modified, if the measured temperature distribution in the measurement region includes a temperature outside the predefined temperature range. - a temperature distribution measuring unit (13, 71) for measuring the temperature distribution in a measurement region within the object, while the object is heated, wherein the temperature distribution measuring unit (13, 71) comprises an ultrasound probe for acquiring ultrasound data of the measurement region and an ultrasound thermometry unit for determining the temperature distribution within the measurement region based on the acquired ultrasound data, - a model providing unit for providing a model of the object describing a model temperature distribution a) in the measurement regions for time periods, in which the respective temperature distribution has been measured in the respective measurement region, and b) in the measurement regions for time periods, in which the respective temperature distribution has not been measured in the respective measurement region, and/or in a non-measurement region within the object, in which a temperature distribution is not measured, and a) in the measurement regions for time periods, in which the respective temperature distribution has been measured in the respective measurement region, and b) in the measurement regions for time periods, in which the respective temperature distribution has not been measured in the respective measurement region, and/or in a non-measurement region within the object, in which a temperature distribution is not measured, and - a temperature distribution estimation unit for determining estimated temperature distributions in the different measurement regions for time periods, in which the respective temperature distribution has not been measured in the respective measurement region and/or in the non-measurement region based on the measured temperature distributions by using the provided model,