Journal of Magnetic Resonance Imaging
To evaluate the accuracy of segmented k-space magnetic resonance phase velocity mapping (PVM) in quantifying aortic blood flow from through-plane velocity measurements.
Two segmented PVM schemes were evaluated, one with seven lines per segment (seg-7) and one with nine lines per segment (seg-9), in twenty patients with cardiovascular disease. A non-segmented (non-seg) PVM acquisition was also performed to provide the reference data.
There was agreement between the aortic flow curves acquired with segmented and non-segmented PVM. The calculated systolic and total flow volume per cycle from the seg-7 and the seg-9 scans correlated and agreed with the flow volumes from the non-seg scans (differences < 5%). Sign tests showed that there were no statistically significant differences (P-values < 0.05) between the segmented and the non-segmented PVM measurements. Seg-9, which was the fastest among the three sequences, provided adequate spatial and temporal resolution (> 10 phases per cycle).
Chatzimavroudis, George P.; Zhang, Haosen; Halliburton, Sandra S.; Moore, James R.; Simonetti, Orlando; Schvartzman, Paulo R.; Stillman, Arthur E.; and White, Richard D., "Clinical Blood Flow Quantification with Segmented k-Space Magnetic Resonance Phase Velocity Mapping" (2003). Chemical & Biomedical Engineering Faculty Publications. 108.
Chatzimavroudis GP, Zhang H, Halliburton SS, Moore JR, Simonetti OP, Schvartzman PR, Stillman AE, White RD. Clinical blood flow quantification with segmented k-space magnetic resonance phase velocity mapping. Journal of Magnetic Resonance Imaging. 2003;17:65-71.
This is the accepted version of the following article: Chatzimavroudis GP, Zhang H, Halliburton SS, Moore JR, Simonetti OP, Schvartzman PR, Stillman AE, White RD. Clinical blood flow quantification with segmented k-space magnetic resonance phase velocity mapping. Journal of Magnetic Resonance Imaging. 2003;17:65-71., which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jmri.10231/abstract