PISCO: Self-Supervised k-Space Regularization for Improved Neural Implicit k-Space Representations of Dynamic MRI
Helmholtz Munich（亥姆霍兹慕尼黑中心）；Technical University of Munich（慕尼黑工业大学）；Klinikum rechts der Isar（右岸医院（慕尼黑工业大学附属））；Imperial College London（帝国理工学院）；Pontificia Universidad Católica de Chile（智利天主教大学）；King’s College London（伦敦国王学院）
Veronika Spieker, Hannah Eichhorn, Wenqi Huang, Jonathan K. Stelter, Tabita Catalan, Rickmer F. Braren, Daniel Rueckert, Francisco Sahli Costabal, Kerstin Hamme… 展开作者
Veronika Spieker, Hannah Eichhorn, Wenqi Huang, Jonathan K. Stelter, Tabita Catalan, Rickmer F. Braren, Daniel Rueckert, Francisco Sahli Costabal, Kerstin Hammernik, Dimitrios C. Karampinos, Claudia Prieto, Julia A. Schnabel
Neural implicit k-space representations (NIK) have shown promising results for dynamic magnetic resonance imaging (MRI) at high temporal resolutions. Yet, reducing acquisition time, and thereby available training data, results in severe performance drops due to overfitting. To address this, we introduce a novel self-supervised k-space loss function $\mathcal{L}_\mathrm{PISCO}$, applicable for regularization of NIK-based reconstructions. The proposed loss function is based on the concept of parallel imaging-inspired self-consistency (PISCO), enforcing a consistent global k-space neighborhood relationship without requiring additional data. Quantitative and qualitative evaluations on static and dynamic MR reconstructions show that integrating PISCO significantly improves NIK representations. Particularly for high acceleration factors (R$\geq$54), NIK with PISCO achieves superior spatio-temporal reconstruction quality compared to state-of-the-art methods. Furthermore, an extensive analysis of the loss assumptions and stability shows PISCO's potential as versatile self-supervised k-space loss function for further applications and architectures. Code is available at: https://github.com/compai-lab/2025-pisco-spieker
Self-Supervised k-Space Regularization for Motion-Resolved Abdominal MRI Using Neural Implicit k-Space Representation
Helmholtz Center Munich（慕尼黑亥姆霍兹中心）；Technical University of Munich（慕尼黑工业大学）；Imperial College London（伦敦帝国学院）；Millenium Institute for Intelligent Healthcare Engineering（千禧智能医疗工程研究所）；Pontificia Universidad Católica de Chile（智利天主教大学）；King’s College London（伦敦国王学院）
Spatiotemporal implicit neural representation for unsupervised dynamic MRI reconstruction
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China（上海交通大学生物医学工程学院）；School of Information Science and Technology, ShanghaiTech University, Shanghai, China（上海科技大学信息科学与技术学院）；iHuman Institute, Shanghaitech University, Shanghai, China（上海科技大学iHuman研究所）
Volumetrically Consistent Implicit Atlas Learning via Neural Diffeomorphic Flow for Placenta MRI
MIT Computer Science and Artificial Intelligence Laboratory（麻省理工学院计算机科学与人工智能实验室）；Massachusetts General Hospital, Harvard Medical School（哈佛医学院麻省总医院）；Boston Children’s Hospital, Harvard Medical School（哈佛医学院波士顿儿童医院）
Assessment of Data Consistency through Cascades of Independently Recurrent Inference Machines for fast and robust accelerated MRI reconstruction
Amsterdam UMC（阿姆斯特丹大学医学中心）；University of Amsterdam（阿姆斯特丹大学）；MS Center Amsterdam（阿姆斯特丹多发性硬化中心）；Amsterdam Neuroscience（阿姆斯特丹神经科学研究所）；Vrije Universiteit Amsterdam（阿姆斯特丹自由大学）；Leiden University（莱顿大学）；Delft University of Technology（代尔夫特理工大学）
From Coarse to Continuous: Progressive Refinement Implicit Neural Representation for Motion-Robust Anisotropic MRI Reconstruction
Department of Bioengineering and Imperial-X, Imperial College London（生物工程系和Imperial-X，帝国理工学院伦敦分校）；Department of Bioengineering, Imperial College London（生物工程系，帝国理工学院伦敦分校）
School of Biomedical Engineering, Shanghai Jiao Tong University（上海交通大学生物医学工程学院）；School of Information Science and Technology, ShanghaiTech University（上海交通大学信息科学与技术学院）；School of Biomedical Engineering and the National Engineering Research Center of Advanced Magnetic Resonance Technologies for Diagnosis and Therapy (NERCAMRT), Shanghai Jiao Tong University（上海交通大学生物医学工程学院和先进磁共振诊断与治疗国家工程研究中心）
Efficient MRI Parallel Imaging Reconstruction by K-Space Rendering via Generalized Implicit Neural Representation
Department of Neuroradiology, University Hospital Heidelberg（神经放射科，海德堡大学医院）；School of Electrical Engineering and Automation, Wuhan University（电气工程与自动化学院，武汉大学）；Momoni AI；Department of Stomatology, Shenzhen People’s Hospital（口腔科，深圳人民医院）；College of Science and Engineering, James Cook University（科学与工程学院，詹姆斯库克大学）；Department of Game Design, Faculty of Arts, Uppsala University（游戏设计系，艺术学院，乌普萨拉大学）；School of Computer Science, University of Sydney（计算机科学学院，悉尼大学）；School of Biomedical Engineering, The University of Sydney（生物医学工程学院，悉尼大学）
提出一种基于广义 INR 的 MRI 并行成像重建框架，利用尺度嵌入编码器和体素先验渲染全采样 k 空间，在 4–6 倍加速下提升质量并降低计算开销。
SGAM: Shared Gaussian Geometry with Implicit Amplitude Modeling for Scan-Specific 3D Multi-Contrast MRI Reconstruction
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences（中国科学院深圳先进技术研究院劳特伯生物医学成像研究中心）
Flow-Guided Implicit Neural Representation for Motion-Aware Dynamic MRI Reconstruction
School of Automation, Guangdong University of Technology（广东工业大学自动化学院）；Research Center for Medical AI, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences（中国科学院深圳先进技术研究所医学人工智能研究中心）；Department of Computer Science and Engineering, The Hong Kong University of Science and Technology（香港科学与技术大学计算机科学与工程系）
Enhancing Implicit Neural Representations with Image Feature Embedding for Unsupervised Cardiac Cine MRI Reconstruction
Division of Image Processing, Department of Radiology, Leiden University Medical Center（莱顿大学医学中心放射科图像处理部）；C.J. Gorter Center, Department of Radiology, Leiden University Medical Center（莱顿大学医学中心放射科C.J. 戈特中心）；Cardio Vascular Imaging Group, Department of Radiology, Leiden University Medical Center（莱顿大学医学中心放射科心血管成像组）；Philips Innovative Technologies（飞利浦创新技术公司）
KP-INR: A Dual-Branch Implicit Neural Representation Model for Cardiac Cine MRI Reconstruction
Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands（莱顿大学医学中心放射科）；Cardiologs, Philips, Paris, France（法国巴黎Philips心血管部门）；Faculty of Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands（埃因霍温理工大学计算机科学学院）；Philips Innovative Technologies, Hamburg, Germany（德国汉堡Philips创新技术）
B-FIRE: Binning-Free Diffusion Implicit Neural Representation for Hyper-Accelerated Motion-Resolved MRI
Radiation Oncology, University of California, San Francisco, California（加州大学旧金山分校放射肿瘤学系）；Radiology and Biomedical Imaging, University of California, San Francisco, California（加州大学旧金山分校放射学与生物医学成像系）；Siemens Medical Solutions USA, Inc., Cleveland, Ohio（西门子医疗解决方案美国公司，克利夫兰，俄亥俄）；Radiology at Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California（洛杉矶儿童医院放射学，美国南加州大学凯克医学院，洛杉矶，加利福尼亚）
Continuous K-space Recovery Network with Image Guidance for Fast MRI Reconstruction
The Shanghai Key Laboratory of Medical Image Computing and Computer Assisted Intervention（上海医学影像计算与计算机辅助介入重点实验室）；Academy of Engineering and Technology, Fudan University（复旦大学工程与技术学院）
Fighting MRI Anisotropy: Learning Multiple Cardiac Shapes From a Single Implicit Neural Representation
Amsterdam UMC（阿姆斯特丹大学医学中心）；University of Amsterdam（阿姆斯特丹大学）；Informatics Institute（信息学院）；QurAI group（QurAI组）；Amsterdam Cardiovascular Sciences（阿姆斯特丹心血管科学）；Department of Biomedical Engineering and Physics（生物医学工程与物理系）；Department of Radiology and Nuclear Medicine（放射学与核医学系）；Department of Radiology（放射学系）；Mayo Clinic（梅奥诊所）；Department of Clinical and Experimental Cardiology（临床与实验心脏病学系）；Department of Experimental Cardiology（实验心脏病学系）；Heart Failure & Arrhythmias（心力衰竭与心律失常）
Gabor Primitives for Accelerated Cardiac Cine MRI Reconstruction
Chair for AI in Healthcare and Medicine, Technical University of Munich (TUM) and TUM University Hospital, Munich, Germany（人工智能在医疗与医学中的chair，慕尼黑技术大学（TUM）和慕尼黑技术大学医院，德国慕尼黑）；School of Computation and Information Technology, Technical University of Munich, Munich, Germany（计算与信息科技学院，慕尼黑技术大学，德国慕尼黑）；Institute of Machine Learning in Biomedical Imaging, Helmholtz Munich, Neuherberg, Germany（生物医学影像中的机器学习研究所，海德堡慕尼黑，德国纽赫堡）；Department of Radiology, Boston Children's Hospital and Harvard Medical School, Boston, USA（放射科，波士顿儿童医院和哈佛医学院，美国波士顿）；Munich Center for Machine Learning, Technical University of Munich, Munich, Germany（慕尼黑机器学习中心，慕尼黑技术大学，德国慕尼黑）；GE HealthCare, Munich, Germany（通用电气医疗系统，德国慕尼黑）；School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom（生物医学工程与成像科学学院，伦敦国王学院，英国伦敦）；Department of Computing, Imperial College London, London, United Kingdom（计算学院，伦敦帝国学院，英国伦敦）
本文提出 Gabor 原始要素用于加速心脏 cine MRI 重建，通过调制高斯包络实现灵活频谱支持，提升对光滑结构和锐利边界的表示能力。
An Unsupervised Deep Learning Method for Multi-coil Cine MRI
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences（中国科学院深圳先进技术研究院保罗·C·劳特伯生物医学成像研究中心）；Research Center for Medical AI, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences（中国科学院深圳先进技术研究院医学人工智能研究中心）；Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences（中国科学院大学深圳先进技术学院）；The State University of New York, Buffalo（纽约州立大学布法罗分校）
FINDER: Zero-Shot Field-Integrated Network for Distortion-free EPI Reconstruction in Diffusion MRI
Sejong University（世宗大学）；Forschungszentrum Jülich（于利希研究中心）；Athinoula A. Martinos Center for Biomedical Imaging（Athinoula A. Martinos生物医学成像中心）；Harvard Medical School（哈佛医学院）；Hongik University（弘益大学）
Coordinate-Based Neural Representation Enabling Zero-Shot Learning for 3D Multiparametric Quantitative MRI
School of Biomedical Engineering, Shanghai Jiao Tong University（上海交通大学生物医学工程学院）；School of Biomedical Engineering, ShanghaiTech University（上海科技大学生物医学工程学院）；Department of Neurosurgery, Shanghai Jiao Tong University School of Medicine（上海交通大学医学院神经外科）；Department of Electrical Engineering and Computer Sciences, University of California, Berkeley（加州大学伯克利分校电气工程与计算机科学系）；School of Information Science and Technology, ShanghaiTech University（上海科技大学信息科学与技术学院）
Learning Subject-Specific Anatomical Representations via Manifold Expansion: Application to Accelerated Multi-Contrast MRI
Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital（马萨诸塞州总医院阿西诺拉·A·马丁诺斯生物医学成像中心）；Harvard Medical School（哈佛医学院）；Massachusetts General Hospital（马萨诸塞州总医院）
Bridging MRI and PET physiology: Untangling complementarity through orthogonal representations
Dept. of diagnostic and interventional Radiology and Neuroradiology, University Hospital Augsburg, Germany（德国奥格斯堡大学医院诊断与介入放射学及神经放射学系）；Digital Medicine, University Hospital Augsburg, Germany（德国奥格斯堡大学医院数字医学）；Chair for Computer Aided Medical Procedures and Augmented Reality, Technical University of Munich, Germany（德国慕尼黑工业大学计算机辅助医疗流程与增强现实教席）；Bavarian Center for Cancer Research (BZKF) Augsburg, Germany（德国奥格斯堡巴伐利亚癌症研究中心）；Dept. of Nuclear Medicine, University Hospital Augsburg, Germany（德国奥格斯堡大学医院核医学系）；Dept. of Urology, University Hospital Augsburg, Germany（德国奥格斯堡大学医院泌尿外科）；Center for Advanced Analytics and Predictive Sciences, University of Augsburg, Germany（德国奥格斯堡大学高级分析与预测科学中心）
Comparative Study of Anatomical and Learned Features in AI Models for Structural Brain MRI
Center for Data Science, New York University（纽约大学数据科学中心）；NYU Grossman School of Medicine（纽约大学格罗斯曼医学院）；Courant Institute of Mathematical Sciences, NYU（纽约大学柯朗数学科学研究所）
AtlasSeg: Atlas Prior Guided Dual-U-Net for Cortical Segmentation in Fetal Brain MRI
College of Biomedical Engineering & Instrument Science, Zhejiang University（浙江大学生物医学工程与仪器科学学院）；Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences（中国医学科学院北京医院国家老年医学中心老年医学研究所）；Shandong Provincial Hospital Affiliated to Shandong First Medical University（山东第一医科大学附属山东省立医院）；State Key Lab of CAD&CG, Zhejiang University（浙江大学CAD&CG国家重点实验室）
AA-ViT: Anatomically Aware Vision Transformer with Structural and Frequency Guidance for Contrast Enhanced Brain MRI Synthesis
Atlantic Technological University（大西洋理工大学）；Belfast Health and Social Care Trust（贝尔法斯特健康和社会关怀信托基金）；King’s College Hospital NHS Foundation Trust（国王学院医院国民保健服务信托基金）；King’s College London（伦敦国王学院）；Queen’s University Belfast（贝尔法斯特女王大学）
Physically Aware Radiomics Without Interpolation: Disentangling Voxel Geometry and Signal Modification in CT and MRI
Complejo Asistencial Universitario de León（莱昂大学附属医院综合体）；Hospital Universitario Rey Juan Carlos（雷·胡安·卡洛斯大学医院）；Health Research Institute of the Jiménez Díaz Foundation（希门尼斯·迪亚斯基金会健康研究所）；Rey Juan Carlos University（雷·胡安·卡洛斯大学）；Universidad de Oviedo（奥维耶多大学）；Universidad de León（莱昂大学）；IFCA-CSIC（西班牙国家研究委员会高级计算与电子科学研究所）；Universidad Autónoma de Chile（智利大学）
Re-Visible Dual-Domain Self-Supervised Deep Unfolding Network for MRI Reconstruction
Shanghai University（上海大学）；Shanghai Institute of Applied Mathematics and Mechanics（上海应用数学和力学研究所）；School of Mechanics and Engineering Science（机械与工程科学学院）；Xi’an Jiaotong University（西安交通大学）；School of Communication and Information Engineering（通信与信息工程学院）
Fast and Explicit: Slice-to-Volume Reconstruction via 3D Gaussian Primitives with Analytic Point Spread Function Modeling
TUM University Hospital, Technical University of Munich（慕尼黑技术大学医院，慕尼黑技术大学）；Institut de Neurosciences de la Timone, Aix-Marseille Université（里莫尼神经科学研究所，艾克斯-马赛大学）；IMT Atlantique（IMT大西洋）；Department of Computing, Imperial College London（伦敦帝国理工学院计算机系）
Energy-based Tissue Manifolds for Longitudinal Multiparametric MRI Analysis
Dept. of diagnostic and interventional Radiology and Neuroradiology, University Hospital Augsburg, Germany（诊断与介入放射科和神经放射科，奥格斯堡大学医院，德国）；Digital Medicine, University Hospital Augsburg, Germany（数字医学，奥格斯堡大学医院，德国）；Chair for Computer Aided Medical Procedures and Augmented Reality, Technical University of Munich, Germany（计算机辅助医疗程序与增强现实 chair，慕尼黑技术大学，德国）；Bavarian Center for Cancer Research (BZKF) Augsburg, Germany（巴伐利亚癌症研究中心（BZKF）奥格斯堡，德国）；Dept. of Pediatrics and Adolescent Medicine, University Hospital Augsburg, Germany（儿科和青少年医学科，奥格斯堡大学医院，德国）；Center for Advanced Analytics and Predictive Sciences, University of Augsburg, Germany（高级分析与预测科学中心，奥格斯堡大学，德国）
MoE-dqINR: A Unified Mixture-of-Experts Implicit Neural Representation Framework for Scan-Specific Dynamic and Quantitative MRI Reconstruction
Department of Bioengineering and I-X, Imperial College London（生物工程系和I-X，帝国理工学院伦敦分校）；Cardiovascular Research Centre, Royal Brompton Hospital（心脏血管研究中心，皇家布隆特医院）；National Heart and Lung Institute, Imperial College London（国家心脏和肺研究所，帝国理工学院伦敦分校）；School of Biomedical Engineering & Imaging Sciences, King’s College London（生物医学工程与成像科学学院，伦敦国王学院）；Shanghai Pudong Hospital and Human Phenome Institute, Fudan University（上海浦东医院和人类表型研究所，复旦大学）；International Human Phenome Institute (Shanghai), Shanghai, China（国际人类表型研究所（上海），上海，中国）
Do We Really Need Diffusion? A Fast U-Net for Paired Medical Image Translation
Institute of Artificial Intelligence, Ulm University（乌尔姆大学人工智能研究所）；Institute of Orthopaedic Research and Biomechanics, Centre for Trauma Research, University Hospital Ulm（乌尔姆大学医院创伤研究中心骨科研究与生物力学研究所）；AI for Sensor Data Analytics Research Group, Ulm University of Applied Sciences（乌尔姆应用科学大学传感器数据分析人工智能研究组）
