Patent ID: 8185187
Filing Date: 2012-05-22
Classification: A61B,G01R

Abstract:
1. A method for acquiring magnetic resonance data, comprising the steps of: operating a magnetic resonance data acquisition apparatus with a magnetic resonance data acquisition sequence selected from the group consisting of a double echo steady state (DESS) sequence and a fast low angle shot (FLASH) sequence, to acquire magnetic resonance data in a magnetic resonance data acquisition sequence from a freely breathing patient located in a basic magnetic field generated in the magnetic resonance apparatus; monitoring respiration of the examination subject in the magnetic resonance data acquisition apparatus using a two-dimensional prospective acquisition correction (2D PACE) signal to identify a shimming window that is identically correlated with the same physical, mechanical position of the patient's diaphragm in the respiratory cycle; acquiring an electrocardiogram (ECG) from the patient in the magnetic resonance data acquisition apparatus; triggering acquisition of said magnetic resonance data with said magnetic resonance data acquisition sequence using said 2D PACE signal and said ECG to cause said magnetic resonance data to be acquired in said magnetic resonance data acquisition sequence at said same position of the patient's diaphragm in multiple respiratory cycles and only within said shimming window; and in said shimming window, adjusting a homogeneity of said basic magnetic field using said DESS sequence or said FLASH sequence.