Ultrashort echo time (UTE) sequences are usually applied for imaging of very short T2* tissues, for the evaluation of water content in the cortical bone and for X-nuclei imaging. The aim of this study was the implementation of an automatic calibration measurement to determine the actual k-space trajectory considering noisy data samples in UTE imaging. In contrast to most other studies, not only gradient delays were taken into account, but also gradient waveform distortions. It could be demonstrated that there exist an optimal number of samples used for correction (depending on signal-to-noise ratio) that should be determined by calibration scans.
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