Therapeutic system comprising: - an ultrasound therapy unit (1, 518) arranged to insonify at least a portion of a body (2, 508) of a patient with high intensity ultrasound; - a MR imaging unit (3, 500) arranged to acquire MR signals from the portion of the body (2, 508) and to reconstruct a thermographic MR image from the MR signals; - an ultrasound diagnostic unit (5, 518) arranged to acquire ultrasound signals from the portion of the body (2, 508) and to derive at least one local temperature value from the ultrasound signals and, wherein the MR imaging unit is adapted for acquiring the MR signals from within an imaging zone; wherein the ultrasound therapy unit is adapted to insonify a target zone within the patient; wherein the ultrasound therapy unit has a multielement ultrasonic transducer adapted for focusing ultrasound at the target zone; wherein the therapeutic system further comprises: - a patient support adapted for receiving the patient; wherein the patient support comprises an ultrasound window adapted for transmitting ultrasound from the multielement ultrasonic transducer to the patient; wherein the ultrasonic transducer has a near field region (534, 536, 538) located between the transducer and the target zone; wherein the imaging zone comprises the near field region; wherein the at least one local temperature value is measured within the near field region; wherein the ultrasonic diagnostic unit (5, 518) is configured to monitor local temperature within fat tissue of the portion of the body (2, 508) based on said at least one temperature value; and wherein the MR imaging unit (3, 500) is arranged to monitor the spatial temperature distribution within water containing tissue of the portion of the body (2, 508); the therapeutic system further comprising: - a computing device (4, 544) for controlling the MR imaging unit; the ultrasound diagnostic unit, and the ultrasonic therapy unit; wherein the computing device comprises one or more processors; wherein the computing device further comprises memory; wherein the computing device comprises one or more programs (556, 558, 560, 562) stored in the memory; wherein the one or more programs are configured to be executed by the one or more processors; wherein the one or more programs comprise instructions for: - receiving a treatment plan for insonification of the target zone; - predicting the attenuation of ultrasound energy in the near field region using the MR thermographic image and the at least one local temperature; and - adjusting the treatment plan based upon the prediction of the attenuation of ultrasound energy in the near field region. - an ultrasound therapy unit (1, 518) arranged to insonify at least a portion of a body (2, 508) of a patient with high intensity ultrasound; - a MR imaging unit (3, 500) arranged to acquire MR signals from the portion of the body (2, 508) and to reconstruct a thermographic MR image from the MR signals; - an ultrasound diagnostic unit (5, 518) arranged to acquire ultrasound signals from the portion of the body (2, 508) and to derive at least one local temperature value from the ultrasound signals and, wherein the MR imaging unit is adapted for acquiring the MR signals from within an imaging zone; wherein the ultrasound therapy unit is adapted to insonify a target zone within the patient; wherein the ultrasound therapy unit has a multielement ultrasonic transducer adapted for focusing ultrasound at the target zone; - a patient support adapted for receiving the patient; wherein the patient support comprises an ultrasound window adapted for transmitting ultrasound from the multielement ultrasonic transducer to the patient; wherein the ultrasonic transducer has a near field region (534, 536, 538) located between the transducer and the target zone; wherein the imaging zone comprises the near field region; wherein the at least one local temperature value is measured within the near field region; - a computing device (4, 544) for controlling the MR imaging unit; the ultrasound diagnostic unit, and the ultrasonic therapy unit; wherein the computing device comprises one or more processors; wherein the computing device further comprises memory; wherein the computing device comprises one or more programs (556, 558, 560, 562) stored in the memory; wherein the one or more programs are configured to be executed by the one or more processors; wherein the one or more programs comprise instructions for: - receiving a treatment plan for insonification of the target zone; - predicting the attenuation of ultrasound energy in the near field region using the MR thermographic image and the at least one local temperature; and - adjusting the treatment plan based upon the prediction of the attenuation of ultrasound energy in the near field region. - receiving a treatment plan for insonification of the target zone; - predicting the attenuation of ultrasound energy in the near field region using the MR thermographic image and the at least one local temperature; and - adjusting the treatment plan based upon the prediction of the attenuation of ultrasound energy in the near field region.