Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition • 09-14 May 2026

Flash Presentation

Image Reconstruction

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Image Reconstruction
Flash Presentation
Acquisition & Reconstruction
Tuesday, 12 May 2026
Roof Terrace
16:00 - 17:36
Moderators: Nahla Elsaid & Jian-xiong Wang
Session Number: 431-03
CME/CE Credit Available
Image reconstruction power pitch with digital posters.

16:00 Figure 431-03-001.  When Noise Misleads: Understanding the Impact of Correlated Noise on Quantitative Image Quality Metrics in MRI
Andrianna Scott, James Rioux, Chris Bowen, Kalei Crowell, Steven Beyea
Dalhousie University, Halifax, Canada
Impact: While IQMs are commonly used to determine the superiority of image acquisition or reconstruction methods, differing conclusions about whether noise correlation decreases quality exemplifies why one should be cautious when using IQMs as indicators of technical performance.
16:02 Figure 431-03-002.  Can slice-GRAPPA enable water-fat separation in single-shot EPI for diffusion MRI?
Summa Cum Laude AMPC Selected
Yiming Dong, Peter Börnert, Ziyu Li, Xinyu Ye, Matthias van Osch, Wenchuan Wu
Leiden University Medical Center, Leiden, Netherlands
Impact: This work introduces a GRAPPA-based water–fat separation for single-shot diffusion EPI, eliminating the need for fat-saturation or multi-echo acquisitions. It improves fat suppression efficiency and reduces scan time, potentially enhancing diffusion MRI robustness across anatomies.
16:04 Figure 431-03-003.  Zero-Shot Self-Supervised Greedy Learning for Magnitude-Phase Reconstruction in MR Elastography
Stefan Martin, Mara Guastini, Jakob Schattenfroh, Ingolf Sack, Christoph Kolbitsch, Andreas Kofler
Physikalisch Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Impact: The proposed zero-shot self-supervised reconstruction with separate learned regularization for magnitude and phase ensures robust elastogram estimation from accelerated acquisitions without training data. This development facilitates rapid MRE, enhancing clinical feasibility and patient throughput in routine practice.
16:06 Figure 431-03-004.  Towards a Unified Theoretical Framework for Self-Supervised MRI Reconstruction
Siying Xu, Kerstin Hammernik, Daniel Rueckert, Sergios Gatidis, Thomas Küstner
University Hospital of Tuebingen, Tuebingen, Germany
Impact: UNITS grounds diverse empirical self-supervised MRI reconstruction methods in theory and unifies them under a single framework. This foundation establishes guiding principles for future method design and opens a new self-supervised learning era for robust, reference-free, and generalizable MRI reconstruction.
16:08 Figure 431-03-005.  Fast and Efficient Calculation of Noise and g-factor for Iterative Parallel Imaging Reconstructions
Onat Dalmaz, Daniel Abraham, Alexander Toews, Akshay Chaudhari, Kawin Setsompop, Brian Hargreaves
Stanford University, Stanford, United States of America
Impact: 
We deliver rapid voxelwise noise and g-factor maps for iterative and compressed-sensing MRI, replacing slow Pseudo-Multiple-Replica simulations. Our unbiased stochastic estimator enables quantitative SNR assessment, and can inform sequence/reconstruction tuning and on-the-fly, and adaptive protocol optimization toward practical, noise-aware MRI.
16:10 Figure 431-03-006.  Joint multi-sequence reconstruction via a joint conditional diffusion model for highly-accelerated brain tumor MRI
Anthony Mekhanik, Robert Young, Ricardo Otazo
Memorial Sloan Kettering Cancer Center, New York, United States of America
Impact: Generative AI may learn reproducible distributions of the MRI space that can be guided towards efficient multi-sequence reconstructions, significantly reducing overall protocol scan time.
16:12 Figure 431-03-007.  Physics-guided Hierarchical Markovian Transformer for MRI Reconstruction
Valiyeh Ansarian Nezhad, Tolga Cukur
Bilkent University, Ankara, Turkey
Impact: ReconHMT is a novel physics-guided transformer that reconstructs MR images within the hierarchical latent space of a foundational autoencoder model. By leveraging adapters to enforce token-level coherence and data-consistency across hierarchical stages, ReconHMT achieves high-fidelity reconstructions while maintaining computational efficiency.
16:14 Figure 431-03-008.  Localized Quadratic rf Encoding with spiral DEFT reconstruction: A practical alternative to 3D FSE for Volumetric Brain MRI
Guruprasad Krishnamoorthy, Julia Velikina, James Pipe
University of Wisconsin - Madison, Madison, United States of America
Impact: Enables faster, high-resolution volumetric T2w brain MRI without t2 blurring, improving depiction of subtle pathology. Motivates diagnostic performance in patient populations.


16:16 Figure 431-03-009.  HiFi-QSM: A deep learning framework for high-resolution QSM reconstruction
Chungseok Oh, Taechang Kim, Jiye Kim, Hyeong-Geol Shin, Jongho Lee
Seoul National University, Seoul, Korea, Republic of
Impact: We proposed HiFi-QSM, a novel framework for high-resolution QSM reconstruction. The proposed method is expected to enable QSM for high-resolution (<< 1 mm) images, which is beneficial for visualizing fine brain structures both in vivo and ex vivo.
16:18 Figure 431-03-010.  PyGrog: An Open-Source Python Library for Efficient Non-Cartesian to Cartesian K-Space Gridding in Magnetic Resonance Imaging
Matteo Cencini, Marta Lancione, Laura Biagi, Michela Tosetti
IRCCS Fondazione Stella Maris, Pisa, Italy
Impact: PyGrog improves non-Cartesian MRI reconstruction by providing an efficient, open-source GROG-based alternative to NUFFT. Its speed, interoperability, and accuracy support practical integration into modern imaging workflows, enhancing accessibility and performance for research and clinical MRI applications.
16:20 Figure 431-03-011.  Self-Navigated, Retrospective, Data-Consistent Motion Correction for MPnRAGE
John Podczerwinski, Andrew Alexander, Brittany Travers, James Li, Steven Kecskemeti
University of Wisconsin - Madison, Madison, United States of America
Impact: This method significantly reduced reconstruction errors from head motion, providing improved cortical thickness estimates. In addition, the improved image quality may benefit clinical imaging studies without the need for sedation.
16:22 Figure 431-03-012.  Real-time Volumetric MRI for MRIgRT with Manifold-smoothness Regularisation of a Subject-specific Autoencoder
Michael Ferraro, Andrew Phair, James Grover, Sirisha Tadimalla, Jonathan Sykes, Lois Holloway, Morgan Wheatley, Yves De Deene, David Waddington
The University of Sydney, Sydney, Australia
Impact: This framework enables real-time, continuous 3D volumetric motion tracking for MRIgRT from highly undersampled k-space, without requiring ground-truth training data. It can capture complex, multi-dimensional motion patterns, paving the way for more accurate tumour tracking and organ-at-risk avoidance during radiotherapy.
16:24 Figure 431-03-013.  Joint Image Reconstruction and T1 Fitting for Multi-Dose Contrast-Enhanced Multitasking MRI
Anqi Liu, Xi Chen, Thomas Coudert, Kim-Lien Nguyen, Anthony Christodoulou
David Geffen School of Medicine at UCLA, Los Angeles, United States of America
Impact: Joint motion identification, reconstruction and fitting enable efficient multi-dose contrast-enhanced myocardial T₁ mapping from only 1-minute scans per dose, even in 3D, offering a potential path toward quantitative multi-dose imaging with improved accuracy and reduced scan time.
16:26 Figure 431-03-014.  Longitudinal MRI Reconstruction Leveraging Patient-Specific Group Sparsity from Prior Images
Nikola Janjusevic, Yao Wang, Li Feng
New York University Grossman School of Medicine, New York, United States of America
Impact: DeepGuidedGS provides a practical approach for utilizing prior scans in clinical follow-ups, supporting faster imaging and improved reconstruction quality even when anatomy changes or alignment is imperfect. This may enhance efficiency and reliability in longitudinal monitoring workflows.
16:28 Figure 431-03-015.  Fast Reconstruction of Navigation-Free 3D Diffusion-Weighted Imaging Based on Deep Learning
Hao Liu, Yi Xiao, Yuan Lian, Wen Zhong, Fan Liu, Juanhua Zhang, Hua Guo
Tsinghua University, Beijing, China
Impact: We proposed MoDL reconstruction with reference-guided U-Net for self-navigated simultaneous multi-slab 3D DWI, which achieved a >50-fold acceleration in total reconstruction time without compromising the image quality. This facilitates robust, high-resolution diffusion imaging without the barrier of prohibitive computation time.
16:30 Figure 431-03-016.  Feasibility of Low-Field UTE MRI with Diffusion-Based Deep Learning Reconstruction for Craniofacial Imaging
Karen Kettless, Sukeshana Srivastav, Stefan Sommer, Jonas Petersen, Rubens Spin-Neto
Siemens Healthcare A/S, Ballerup, Denmark
Impact: This feasibility study demonstrates low-field 0.55T UTE MRI with diffusion model-based deep learning reconstruction enabling high-resolution, radiation-free craniofacial imaging. Supporting radiation free orthodontic workflows, reproducible cephalometric analysis, and improved visualization of bone and soft tissue for clinical and research use.


16:32 Figure 431-03-017.  The Value of High-resolution TOF-MRA with Deep Learning Reconstruction in Improving Image Quality of Moyamoya Vessels
冬雪 李, Wei Sun, Xiao-Yuan Fan, Yun Wang, Hui You, Yifei Zhang, Joonsung Lee, Feng Feng
Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
Impact: High-resolution TOF-MRA with deep-learning-reconstruction can significantly raise small vessels visibility. This imaging technique could serve as a valuable noninvasive tool for assessment of degree of collateral circulation in moyamoya disease, and others such as lenticulostriate arteries and aneurysms.
16:34 Figure 431-03-018.  BUDA-iQSM+: BUDA Imaging and Deep Learning iQSM+ Enables Rapid and Robust Distortion-free High-Resolution QSM
Zhifeng Chen, zhongbiao xu, Junying Cheng, Shanshan Shan, Zhenguo Yuan, Yaohui Wang, Mingfeng Jiang, Gang Zheng, Tao Quan, Jingjing Xu, Ling Xia, Feng Liu, Xiaoyun Liang, Hongfu Sun
Neusoft Medical Systems Co., Ltd., Hangzhou, China
Impact: The BUDA-iQSM+ framework, with orientation-adaptive latent feature editing, enables fast, artifact-free, high-resolution whole-brain QSM. This innovation advances neuroscience research and clinical applications by providing reliable susceptibility quantification, targeting MR physicists, radiologists, and scientific professionals engaged in neuroimaging and diagnostic studies.

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