Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition - Diffusion Acquisition and Reconstruction

Diffusion Acquisition and Reconstruction

Oral

Diffusion

Monday, 11 May 2026

Ballroom East

08:20 - 10:10

Moderators: Lipeng Ning & Chantal Tax

Session Number: 304-02

CME/CE Credit Available

Similar Sessions

This session covers Diffusion MRI acquisition and reconstruction methods

Skill Level: Advanced

08:20		304-02-001. High-SNR Whole-Brain Mesoscale Diffusion MRI Using Rotating-View Acquisitions (ROVER-dMRI) Qiang Liu, Yunqi Wang, Yiang Pan, Hwihun Jeong, Carl-Fredrik Westin, Lauren O’Donnell, Berkin Bilgic, Ante Zhu, Thomas Foo, Kawin Setsompop, Deniz Erdogmus, Lipeng Ning, Yogesh Rathi Brigham and Women's Hospital and Harvard Medical School, Boston, United States of America Impact: ROVER-dMRI integrates thick-slice acquisitions for intrinsically high SNR with an implicit neural representation (INR) for continuous, noise-robust super-resolution reconstruction. This approach enables submillimeter dMRI with superior fidelity and structural delineation, greatly benefiting microstructural and connectivity analysis of fine-scale brain architecture.
08:31		304-02-002. Towards Reliable Plug-and-Play Spiral dMRI with Efficient Field Characterization and Reconstruction for Joint k-q Sampling Zachary Shah, Daniel Abraham, Matthew McCready, Nastaren Abad, SEUNG-KYUN LEE, Afis Ajala, Eric Fiveland, Thomas Foo, Qiang Liu, Yogesh Rathi, Adam Kerr, Kawin Setsompop Stanford University, Stanford, United States of America Impact: We showcase a high-fidelity spiral-dMRI framework on the MAGNUS 3T at 0.85x0.85x2mm in 3 minutes scantime, without reliance on external hardware (i.e. field probes), proposing a corresponding reconstruction framework 15X faster than conventional methods, extending the feasibility for high-performance spiral-dMRI.
08:42		304-02-003. Joint k–q–TE Reconstruction of Diffusion MRI using an Implicit Neural Representation Yunqi Wang, Qiang Liu, William Consagra, Jiezhang Cao, Haijin Zeng, Yiang Pan, Lipeng Ning, Yogesh Rathi Brigham and Women's Hospital and Harvard Medical School, Boston, United States of America Impact: Our joint k–q–TE reconstruction with complementary sampling enables shorter diffusion–relaxometry protocols while maintaining fiber orientational details, making it feasible to deploy multi-shell and multi-TE dMRI in routine neuroimaging studies.
08:53		304-02-004. Diffusion-weighted spiral liver imaging with motion-compensation gradients at 0.6T Yiming Dong, Sebastian Kozerke, Fan Liu, Susanne Rauh, Martijn Nagtegaal, Ece Ercan, Christian Stoeck, Andrew Webb, Matthias van Osch, Peter Börnert Leiden University Medical Center, Leiden, Netherlands Impact: Motion-compensation gradients enable abdominal multi-interleave spiral DWI with reduced cardiac motion-related signal dropouts and shot-to-shot phase variations. The shorter echo time achievable with spiral readouts helps offset TE prolongation from motion-compensation, supporting high-SNR DWI on midfield and potentially higher-field systems.
09:04		304-02-005. Joint Model-Based Correction of Eddy Currents and Static B0 for Diffusion MRI Yahang Li, Wei Liu, Shihan Qiu, Mahmoud Mostapha, Nirmal Janardhanan, Thorsten Feiweier, Michael Köhler, Stephan Kannengiesser, Dieter Ritter, Rainer Schneider, Daniel Niederlöhner, David Grodzki, Mariappan Nadar Digital Technology and Innovation, Princeton, United States of America Impact: By jointly modeling static B0 and eddy currents in reconstruction, our method improves geometry and sharpness in diffusion MRI without field-monitoring hardware. This enables more reliable tractography and diffusion metrics, supporting high-b imaging on diverse sequences/scanners with a reusable calibration.
09:15		304-02-006. Fast High-b High-Resolution Diffusion MRI for Microstructure Imaging using Romer with Single-Shot EPTI on Connectome 2.0 Mingxiao Zhang, Jian Wu, Felix Zahnert, Timothy Reese, Susie Huang, Zijing Dong, Fuyixue Wang Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States of America Impact: Leveraging SNR-efficient Romer acquisition with single-shot EPTI—further enhanced with variable-density-encoding, system-aware field-modeling, and ultra-high-performance gradient, we achieved fast, distortion-free, high-SNR microstructure imaging within clinically acceptable time: (i) high-b (6,000s/mm²) at 1.5-mm-iso for robust SANDI; (ii) submillimeter DTI; under 30 minutes.
09:26		304-02-007. Rapid multi-shell mesoscale dMRI using accelerated Romer-EPTI with joint x-q attention network constrained reconstruction Kaibo Tang, Zijing Dong, Lawrence Wald, Fuyixue Wang Boston University, Boston, United States of America Impact: The optimized physics-driven reconstruction with the newly structured joint x-q attention network with enhanced location-awareness enables highly accelerated Romer-EPTI with improved performance, achieving distortion-free mesoscale dMRI in vivo at 500-µm isotropic resolution within clinically feasible time.
09:37		304-02-008. Reconstructing High-b-Value DWI from a Single Average Using Low-b-Value Side Information Arda Atalik, Sumit Chopra, Hersh Chandarana, Daniel Sodickson New York University, New York, United States of America Impact: Leveraging low-b-value side information, our DL method reconstructs b1000 images from a single average while maintaining robust lesion depiction, thereby significantly shortening scan time compared to the 12-average clinical protocol. The rapid acquisition also enables thinner slices and higher throughput.
09:48		304-02-009. Distortion- and Blurring-Free Diffusion-Weighted Imaging in the Body Using Self-Navigated Echo Planar Time-Resolved Imaging Xuetong Zhou, Aizada Nurdinova, Judith Zimmermann, Andreas Loening, Bruce Daniel, Brian Hargreaves Stanford University, Stanford, United States of America Impact: The combination of self-navigated echo-planar time imaging (EPTI) and subspace reconstruction provides robustness against large B₀ variations in body imaging without compromising time efficiency. This enables more reliable DWI for assessing cancer and other abnormalities, complementing contrast-enhanced imaging.
09:59		304-02-010. Female pelvic floor diffusion tensor imaging enabled by multi-shot EPI and ADMM unrolled reconstruction Zhengguo Tan, John DeLancey, Yun Jiang, Vikas Gulani University of Michigan, Ann Arbor, United States of America Impact: This study develops a high-resolution DTI technique, which may serve as a useful and quantitative tool to study the integrity of female pelvic floor mscle fibers and to understand the mechnisum behind pelvic floor disorders.