Abstract #2675

Respiratory Gating with Measurement Time Constraints Applied to MRI with Continuously Moving Table

Matthias Honal¹, Tobias Baumann²

¹Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany; ²Department of Radiology, University Medical Center Freiburg, Germany

The application of respiratory gating for MRI with continuously moving table is difficult. Due to the variability of the breathing motion over time the coverage of the complete k-space in the available measurement time which is fixed by the table motion cannot be guaranteed. In this study a variant of respiratory gating is proposed that acquires the required k-space data in a limited time as consistently as possible with respect to motion. Compared to acquisitions without motion correction blurring artifacts are reduced thereby significantly improving the diagnostic image quality.