Patent ID: 7429861

Claim:
A method for operating a magnetic resonance system, comprising the steps of: radiating radio-frequency excitation pulses into tissue comprising at least a first tissue type having a first resonant frequency and a second tissue type, different from said first tissue type, having a second resonant frequency; activating a readout gradient with a polarity that changes at least twice between two successive ones of said radio-frequency excitation pulses, and thereby causing said tissue to produce a gradient echo in the tissue with each bipolar switching of said readout gradient, with an echo time corresponding to a time duration from one of said radio-frequency excitation pulses to said gradient echo; reading out radio-frequency signals produced by said at least two gradient echoes to obtain magnetic resonance image data representing said tissue by activating a readout gradient between said two successive ones of said radio-frequency excitation pulses; selecting respective points in time of the readout of said radio-frequency signals to cause at least one of the gradient echoes of said first and second tissue types to have a same phase position, or a phase position of the gradient echoes of the first tissue to be countered to a phase position of the gradient echoes of the second tissue type, or selecting said points in time of said signal readout without the respective phase positions of the gradient echoes of the first and second tissue types relative to each other being taken into account; and making said magnetic resonance image data available as an electronic dataset in a form allowing reconstruction of an image of said tissue therefrom.