Koninklijke Philips Corporation N.V.

Thomas Jaermann

Klaas P Pruessmann

Peter Boesiger

Markus Weiger

Arianne M C Van Muiswinkel

Conny Frauke Schmidt

In a magnetic resonance imaging method an echo train is generated of successive magnetic resonance signals from an object to be examined. The magnetic resonance signals are received with a degree of undersampling and by means of a receiver antennae system having a spatial sensitivity profile and the degree of undersampling is set on the basis of an amount of phase evolution due to a magnetic susceptibility distribution of the object to be examined.

Reduction of susceptibility artifacts in subencoded single-shot magnetic resonance imaging

An imaging sequence, which generates a static image data set and a plurality of differently diffusion-weighted data sets, is repeated and the data sets stored in memories ( ). Each data set is reconstructed into corresponding images stored in sub memories ( ). The images are compared macroscopically ( ) and shifted ( ) into optimal alignment. Local regions of the images are analyzed ( ) and adjusted ( ) for better conformity. The static images and like spatially encoded images are compared with each other and those outside a preselected similarity threshold are rejected ( ). The remaining like images are combined ( ) and subject to a diffusion analysis ( ) to generate an image of an anisotropic structure in the imaging region. The anisotropic structure and other image information are displayed on a monitor ( ).

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Zurich, Switzerland

Thomas Jaermann