Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
452-02-015 / 452-02-015 ISMRM Abstract

Towards separation of blood velocity and partial-volume effects in phase-contrast MRA for quantitative vessel-specific fMRI

Primary: Brain Function and fMRI - fMRI Acquisition
Secondary: Contrast Mechanisms - Velocity/Flow
452-02-015 · Methodology: Acquisition and Analysis · Tuesday, 12 May, 1:40 PM–3:16 PM · Power Pitch Theatre 2
452-02-015 · Methodology: Acquisition and Analysis · Tuesday, 12 May, 1:40 PM–3:16 PM · Power Pitch Theatre 2
Keywords: Angiography Blood Brain Modelling Signal Representations
Accepted
Sébastien Proulx 1,2, Divya Varadarajan, Zhangxuan Hu1,2,3, Amelia Strom4,5, Jonathan R Polimeni1,2
1Department of Radiology, Stanford Medicine, Stanford, United States of America
2Richard M. Lucas Center for Imaging, Stanford University, Stanford, United States of America
3Stanford University, Stanford, United States of America
4Harvard-MIT Program in Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, United States of America
5Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, United States of America
Presenting Author: Sébastien Proulx

Synopsis

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References

1. Yu, X. et al. Direct imaging of macrovascular and microvascular contributions to BOLD fMRI in layers IV–V of the rat whisker–barrel cortex. NeuroImage 59, 1451–1460 (2012). doi:10.1016/j.neuroimage.2011.08.001 [doi]
2. Yu, X. et al. Sensory and optogenetically driven single-vessel fMRI. Nat. Methods 13, 337–340 (2016). doi:10.1038/nmeth.3765 [doi]
3. Varadarajan, D. et al. Separating Vessel Diameter, Blood Velocity And Oxygenation Responses To Activation: Joint Magnitude-Phase Analysis Of Phase-Contrast fMRA. in International Proceedings of the 33nd Annual Meeting of ISMRM (Honolulu, 2025).
4. Hamilton, C. A. Correction of partial volume inaccuracies in quantitative phase contrast MR angiography. Magn. Reson. Imaging 12, 1127–1130 (1994). doi:10.1016/0730-725X(94)91245-R [doi]
5. Zong, X. & Lin, W. Quantitative phase contrast MRI of penetrating arteries in centrum semiovale at 7T. NeuroImage 195, 463–474 (2019). doi:10.1016/j.neuroimage.2019.03.059 [doi]
6. Zhao, S., Ahmad, R. & Potter, L. C. Venc Design and Velocity Estimation for Phase Contrast MRI. IEEE Trans. Med. Imaging 41, 3712–3724 (2022). doi:10.1109/tmi.2022.3193132 [doi]
7. Moran, P. R. A flow velocity zeugmatographic interlace for NMR imaging in humans. Magn. Reson. Imaging 1, 197–203 (1982). doi:10.1016/0730-725X(82)90170-9 [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/452-02-015