smaller than half of the maximum possible field of view see fig4 in such a manner projection images of the arterial vessel system are obtained in blocks vertically to the body plane fig5 shows in perspective a representation of the gradient orientation as well as the blocks obtained in the case of coronary projection direction according to the procedure of the invention an exemplary calculation is provided below to illustrate the procedure according to the invention the following calculation relates to a scanner of the type u201c magnetom sonata u201d which is manufactured by siemens this scanner operates with a spherical homogeneity range of the magnetic field with a diameter of 400 mm it uses a 3d gradient echo sequence of the type u201c flash u201d the dimensions of an excitation block in front view are selected to be 350 mm u00d7 150 mm the k matrix has 1024 u00d7 439 pixels in the horizontal plane with a maximum in plane resolution of 0 342 mm u00d7 0 342 mm from a pre defined repetition time of tr 5 0 ms there follows a scanning session duration per block t block of the maximum imaging length of az 140 cm as defined by the design of the mri apparatus magnetom sonata allows us to perform 10 scanning sessions.