MR-Based Field-Of-View Extension: Gradient & B0 Correction Post-Processing

Jan Ole Blumhagen^1,2, Ralf Ladebeck¹, Matthias Fenchel¹, Jrgen Kampmeier¹, Klaus Scheffler²

Several studies demonstrated rectification of static-field inhomogeneities inside a field-of-view (FoV) of less than 500mm using phantom-based or patient-based post-processing methods. However, in whole-body MR/PET a distortion-free MR image using an axial FoV up to 600mm would improve the human attenuation correction. Furthermore, an extended FoV can be useful in image-guided radio-surgery and biopsy. In this work we will show exemplarily for 2D spin-echo that significant distortion reduction using post-processed B0 correction can be achieved for an axial FoV up to 600mm.