MAGNETIC RESONANCE IMAGING GUIDED THERAPY SYSTEM

It is an object of the invention to improve the information about the position of a structure of interest (e.g. one or more organs and possibly their surroundings, a therapeutic target and / or organsat risk). This object is achieved by a magnetic resonance imaging system configured for determining whether a structure of interest is within a predefined region of interest, wherein the magnetic resonance imaging system comprises a memory for storing computer program code means for causing the magnetic resoance system to carry out the following steps: applying a multiband magnetic resonance imaging sequence in order to simultaneously acquire a first slice of magnetic resonance data a first slice location and a second slice of magnetic resonance data from a second and different slice location, wherein the first and second slice location define the region of interest and; a determination step for determining based on the first and slice of magnetic resonance data and prior knowledge aboutthe structure of interest