Abstract #2625

Application of Compressed Sensing to Minimize Pulsation Artifacts and Distortions in High Resolution Time-Of-Flight Imaging at 7 Tesla MRI

Anders Garpebring¹, Maarten J. Versluis²,³, Matthias J.P. van Osch²,³

¹Radiation Sciences, Ume University, Ume, Sweden, Sweden; ²Radiology, Leiden University Medical Center, Leiden, Zuid-Holland, Netherlands; ³CJ Gorter Center for high field MRI, Leiden University Medical Center, Leiden, Zuid-Holland, Netherlands

Ultra high field MRI time-of-flight angiograms can often be seriously degraded by pulsation artifacts. A method based on random order sampling, retrospective gating and L1-SPIRiT reconstruction was developed and tested on a 7 T scanner. The results confirmed that the proposed method can reduce the flow artifacts.