Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
630-03-005 ISMRM Abstract

Dual-venc 5D flow MRI in under 10 minutes using alternating 4-point encoding and kt-GRAPPA-initiated compressed sensing

Primary: Cardiovascular - Flow
Secondary: Acquisition & Reconstruction - Subsampling: Parallel imaging, compressed sensing and low-rank modeling
630-03-005 · Hemodynamics and Flow · Thursday, 14 May, 4:00 PM–5:50 PM · Meeting Room 2.60
Keywords: Image Reconstruction Dual-VENC Free-running MRI 5D Flow Flow phantom
Accepted
Thara Nallamothu 1,2, Elizabeth Weiss1,2, Justin Baraboo1,2, Paolo Garelli3, Joshua D Robinson4, Cynthia K Rigsby2,4, Christopher W Roy5, Matthias Stuber5, Michael Markl1,2
1Biomedical Engineering, Northwestern University, Chicago, United States of America
2Radiology, Feinberg School of Medicine, Northwestern Medicine, Chicago, United States of America
3Service of Cardiology, Heart and Vessel Department, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
4Ann & Robert Lurie Children’s Hospital, Chicago, United States of America
5Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
Presenting Author: Thara Nallamothu

Synopsis

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References

1. Ma LE, Yerly J, Piccini D, Di Sopra L, Roy CW, Carr JC, Rigsby CK, Kim D, Stuber M, Markl M. 5D Flow MRI: A Fully Self-gated, Free-running Framework for Cardiac and Respiratory Motion-resolved 3D Hemodynamics. Radiol Cardiothorac Imaging. 2020 Nov;2(6):e200219. PMID: 33385164 [pmid]
2. Weiss EK, Baraboo J, Rigsby CK, Robinson JD, Ma L, Falcão MBL, Roy CW, Stuber M, Markl M. Respiratory-resolved five-dimensional flow cardiovascular magnetic resonance : In-vivo validation and respiratory-dependent flow changes in healthy volunteers and patients with congenital heart disease. J Cardiovasc Magn Reson. 2024 Winter;26(2):101077. PMID: 39098573 [pmid]
3. Weiss E, Baraboo J, Ma LE, Falcão M, Roy C, Stuber M, Markl M. Dual-Venc 5D flow MRI for Increased Velocity Dynamic Range: An in vivo Validation Study. Proceedings of the International Society for Magnetic Resonance Imaging. Singapore; 2024.
4. Nallamothu T, Weiss E, Baraboo J, Robinson JD, Rigsby CK, Roy C, Stuber M, Markl M. Flexible kt-GRAPPA-initiated compressed sensing reconstruction approach for accelerated dual-venc 5D flow imaging. Proceedings of the International Society for Magnetic Resonance Imaging. Honolulu; 2025.
5. Seiberlich N, Breuer F, Heidemann R, Blaimer M, Griswold M, Jakob P. Reconstruction of undersampled non-Cartesian data sets using pseudo-Cartesian GRAPPA in conjunction with GROG. Magn Reson Med. 2008 May;59(5):1127–1137. PMID: 18429026 [pmid]
6. Schnell S, Ansari SA, Wu C, Garcia J, Murphy IG, Rahman OA, Rahsepar AA, Aristova M, Collins JD, Carr JC, Markl M. Accelerated dual-venc 4D flow MRI for neurovascular applications. J Magn Reson Imaging. 2017 Jul;46(1):102–114. PMID: 28152256 [pmid]
7. Barker AJ, van Ooij P, Bandi K, Garcia J, Albaghdadi M, McCarthy P, Bonow RO, Carr J, Collins J, Malaisrie C, Markl M. Viscous Energy Loss in the Presence of Abnormal Aortic Flow. Magn Reson Med. 2014 Sep;72(3):620–628. PMID: 24122967 [pmid]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/630-03-005