- Oral presentation
- Open Access
Phase contrast MRI with flow compensation view sharing (FCVS)
© Wang et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Common Carotid Artery
- Peak Velocity
- Flow Encode Line
- Free Breathing
- Total Acquisition Time
Six healthy volunteers were recruited in the prospective study and were scanned by the standard FCFE PC-MRI sequence and FCVS sequence under free breathing. The in vivo study were performed on SIEMENS 1.5 T Avanto scanner with 6-channel head and neck coils. FC k-space lines were acquired after every five FE lines and generated a sliding window under-sampled pattern by a rate RFC = 6. For each corresponding FE frame, a composite FC frame was synthesized by sharing data from adjacent frames. The 5/6 under-sampling of FE data due to FC data acquisition were recovered by TGRAPPA reconstruction. The peak velocity and total volumetric flow measurements of FCVS are compared with standard FCFE with same temporal resolution but double total acquisition time.
FCVS can accelerate PC-MRI acquisitions while maintaining flow and velocity measurement accuracy when there is limited temporal variation in the FC data.
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