Abstract #4866

Compressed Sensing Reconstruction with Retrospectively Gated Sampling Patterns for Velocity Measurement of Carotid Blood Flow

Yuehui Tao¹, Gabriel Rilling², Mike Davies², Ian Marshall¹

¹Medical Physics, University of Edinburgh, Edinburgh, United Kingdom; ²School of Engineering and Electronics, University of Edinburgh, Edinburgh, United Kingdom

Due to unpredictable heart rate variability, sampling patterns recorded in retrospectively gated dynamic scans appears to be incoherent, which suits the Compressed Sensing framework. Three such sampling patterns recorded in real scans are tested in Compressed Sensing reconstruction with in vivo data from 2D cine phase contrast velocity measurement of carotid blood flow. Both intensity and phase (velocity) errors are examined.