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

Digital Poster

Image Reconstruction Using Generative Models

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Image Reconstruction Using Generative Models
Digital Poster
Acquisition & Reconstruction
Monday, 11 May 2026
Digital Posters Row E
14:45 - 15:40
Session Number: 364-04
No CME/CE Credit
This session focuses on image reconstruction methods based on generative models, such as score-based diffusion models.
Skill Level: Advanced

  Figure 364-04-001.  Accelerated MR Elastography Using a Deep Generative Model
Xi Peng
University of Iowa, Iowa City, United States of America
Impact: Higher resolution in MRE is essential for identifying heterogenous substances and accurately quantifying stiffer tissues, but is typically infeasible by the prolonged scan times. This work enabled fast MRE by reconstructing images from highly undersampled data using a deep-learning-based approach.
  Figure 364-04-002.  Deep Diffusion Prior of Sole High-field Data for Accelerated Low-field and Ultra-low-field MRI
Haobo Wang, Zhuoxu Cui, Congcong Liu, Yuanyuan Liu, Xingyang Wu, Shuo Zhou, Yihang Zhou, Dong Liang, Hector Lopez, Hui Dong, Haifeng Wang
University of Chinese Academy of Sciences, Beijing, China
Impact: We propose a distribution-adaptive deep learning framework for accelerated low-field MRI. The model needs only high-field data to pre-train a robust diffusion prior and is then lightly adapted in situ, enabling high-fidelity low-field reconstruction without paired high-/low-field datasets.
  Figure 364-04-003.  Improved training of energy-based models using score distillation for accelerated MRI
Jyothi Rikhab Chand, Sahil Murtaza, Mathews Jacob
University of Virginia, Charlottesville, United States of America
Impact: 
Multiscale Energy-based models (EBMs) are diffusion models whose score is a potential gradient. They offer: explicit priors for inverse problems, convergent algorithms, and conservative scores. The proposed distillation method enables training of larger EBMs on bigger datasets, offering improved performance.
  Figure 364-04-004.  PCDM:Physics-Corrected Diffusion Model for Unsupervised 3D Multi-Contrast Cardiac MRI Reconstruction
Yilin Su, Yuanyuan Liu, Congcong Liu, Jing Cheng, Qingyong Zhu, Yihang Zhou, Yining Wang, Zhuoxu Cui, Dong Liang
School of Biomedical Engineering, Southern Medical University, Guangzhou,Guangdong, China
Impact: PCDM enables high-fidelity multi-contrast MRI reconstruction from highly undersampled data without ground-truth training, effectively mitigating domain shift and offering strong potential for clinically feasible rapid quantitative imaging.
  Figure 364-04-005.  Consistency Model Priors for Fast and Accurate Generative MR Reconstruction
Merve Gulle, Junno Yun, Yasar Utku Alcalar, Mehmet Akcakaya
University of Minnesota, Minneapolis, United States of America
Impact: Proposed CM-RED enables high-quality MR reconstruction with substantially reduced computational cost, making generative AI priors practical for clinical and research applications. By demonstrating that CMs can serve as powerful learned priors, this work enables fast and stable physics-guided generative reconstruction.
  Figure 364-04-006.  Cross-Modal Dictionary Learning with Diffusion Refiner for Unpaired T1-Guided T2 MRI Reconstruction
Jieyi Cai, Zhengyong Huang, Ning Jiang, Xiaocheng Fang, Yao Sui
Peking University, Beijing, China
Impact: We employ high-quality T1WI as reliable anatomical guides to accurately reconstruct T2 images without needing paired T1-T2 datasets or high-quality T2 supervision, potentially mitigating clinical burden of prolonged T2 scan durations and reducing reliance on scarce high-quality T2WI resources.
  Figure 364-04-007.  Improved Reconstruction of MR Phase-varied Images Using Real-value Trained Score-based Diffusion Model
Satoshi ITO, Tomoki Sawai
Utsunomiya University, Utsunomiya, Japan
Impact: A novel method for improving the quality of complex-valued images in diffusion model reconstruction has been proposed. Phase-varied images can be reconstructed using a real-value trained diffusion model, enabling high-quality images regardless of phase changes.
  Figure 364-04-008.  MRI Reconstruction using Diffusion with Iterative Colored Renoising (DDfire)
Matthew Bendel, Philip Schniter, Rizwan Ahmad
The Ohio State University, Columbus, United States of America
Impact: The proposed diffusion-based reconstruction method, DDfire, enables high-fidelity MRI reconstruction by whitening denoiser input error via colored “renoising” within a diffusion sampler. For brain MRI, it improves perceptual and distortion image quality metrics at R=4 and R=8 over state-of-the-art methods.
  Figure 364-04-009.  Dynamic MRI Reconstruction via Spatial RED-Diffusion Priors and Temporal Optical-Flow Regularization
Qijun Chen, Baoqing Li, Yihang Zhou, Zhuoxu Cui, Luying Gui
School of Mathematics and Statistics, Nanjing University of Science and Technology, NanJing, China
Impact: We integrate implicit neural representations, optical flow, and RED-diffusion priors to enhance dynamic MRI reconstruction. This method learns the distribution of real images, preserves structural details, shows strong noise robustness, reduces artifacts, and improves overall temporal consistency and reconstruction quality.
  Figure 364-04-010.  Optimization methods for diffusion model-based MRI reconstruction
Irmak Sivgin, Julio Oscanoa, Cagan Alkan, Mengze Gao, Daniel Ennis, John Pauly, Mert Pilanci, Shreyas Vasanawala
Stanford University, Stanford, United States of America
Impact: By integrating diffusion priors with data-informed convex optimization tools, OptDiff (our method) delivers high-quality MRI reconstructions at a fraction of the computational cost.
  Figure 364-04-011.  Noisy MRI reconstruction with diffusion bridge model and step-size-adjusted strategy
Yuan Lian, Juanhua Zhang, Yiwen Wang, Yishen Gao, Wushi Shao, Fan Liu, Hua Guo
Tsinghua University, Beijing, China
Impact: Recent advancements in hardware increase interest in low-SNR MRI systems. Traditional techniques designed to accelerate MR imaging acquisitions may be inapplicable with noisy input. Here we propose a deep-learning, diffusion-bridge–based framework that jointly reconstructs and denoises undersampled, noisy k-space data.
  Figure 364-04-012.  Diffusion Model Reconstruction for undersampled 3D IR-UTE MRI of the Knee
Oliver Schad, Philipp Nunn, Henner Huflage, Jan-Peter Grunz, Philipp Gruschwitz, Thorsten Bley, Johannes Tran-Gia, Tobias Wech
University Hospital Würzburg, Würzburg, Germany
Impact: We provide evidence that an accelerated IR-UTE MRI sequence can be used to detect a tibial plateau fracture.
  Figure 364-04-013.  Enable Quantitative Analysis of Clinical Breast DCE-MRI Using Gen-AI Enhancement of Temporal Resolution: A Preliminary Study
Qisheng He, Fahad Khawar, Wei Huang, Ming Dong
Wayne State University, Detroit, United States of America
Impact: Enabling quantitative pharmacokinetic analysis of low tRes clinical breast DCE-MRI data through Gen-AI enhancement of tRes with high fidelity would astronomically increase the data volume for quantitative breast DCE-MRI research and facilitate its translation into clinical practice for precision medicine.
  Figure 364-04-014.  Improving image quality and spatial resolution in speech MRI using synthetically supervised deep learning reconstruction
Mario Nicola, Agnieszka Peplinski, Joe Martin, Marc Miquel
King's College, London, United Kingdom
Impact: This work demonstrates that synthetically supervised deep learning can improve perceptual quality and reduces artefacts of dynamic speech MRI. This mitigates the spatiotemporal resolution trade-off, enabling clearer visualisation of rapid articulatory motion for clinical assessment of speech.
  Figure 364-04-015.  Weakly Supervised Deep Learning for Non-Cartesian 7T MP2RAGE MRI Reconstruction
Asma Tanabene, Chaithya Giliyar Radhakrishna, Aurélien Massire, Mahmoud Mostapha, Mariappan Nadar, Philippe Ciuciu
MIND, Inria, Palaiseau, France
Impact: Weakly supervised training releases the dependence on fully sampled data. Our approach ensures consistent dual-contrast reconstruction and phase-sensitive UNI combination for highly accelerated non-Cartesian MP2RAGE data, enhancing the practicality of using fast 7T MP2RAGE imaging.
  Figure 364-04-016.  Patch-Based Diffusion Inverse Solver for T2-Weighted Prostate Imaging Reconstruction
Hongze Yu, Jason Hu, Hero Hussain, Michael Jaroszewicz, Vikas Gulani, Jeffrey Fessler, Yun Jiang
University of Michigan, Ann Arbor, United States of America
Impact: Patch-based diffusion inverse solver (PaDIS) improves T2-weighted prostate MRI image quality and artifacts suppression at both 3T and 0.55T. This can potentially enable higher-quality, faster prostate MRI in routine clinical workflows, and accelerate low-field prostate MRI adoption.

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