MR imaging with Dixon-type water/fat separation

A computer program stored on a non-transitory computer readable medium to be run on a magnetic resonance (MR) device, which computer program comprises instructions for:

• performing a first imaging sequence, which generates a number of differently phase encoded first MR echo signals at a first echo time, such that contributions from MR signals emanating from water protons and MR signals emanating from fat protons to the first MR echo signals are essentially in phase,
• acquiring the first MR echo signals using a first signal receiving bandwidth, wherein the first MR echo signals are acquired using a readout magnetic field gradient having a first gradient strength,
• performing a second imaging sequence which generates a number of differently phase encoded second MR echo signals at a second echo time, such that contributions from MR signals emanating from water protons and MR signals emanating from fat protons to the second MR echo signals are at least partially out of phase, acquiring the second MR echo signals using a second signal receiving bandwidth which is larger than the first receiving bandwidth, wherein the second MR echo signals are acquired using a readout magnetic field gradient having a second gradient strength which is different from the first gradient strength, wherein the number of different phase encodings of the first imaging sequence is smaller than the number of different phase encodings of the second imaging sequence, and
• reconstructing a MR image from the first and second MR echo signals, whereby signal contributions from water protons and fat protons are separated.