ISMRM25 - Artifacts Mitigation & Correction

ISMRM & ISMRT Annual Meeting & Exhibition • 10-15 May 2025 • Honolulu, Hawai'i

Artifacts Mitigation & Correction

Digital Poster

Acquisition & Reconstruction

Wednesday, 14 May 2025

Exhibition Hall

09:15 - 10:15

Session Number: D-20

No CME/CE Credit

		Computer Number: 17 3360. Ringing Artifact Removal Using Zero-Shot Deep Anti-Aliasing Prior in MR image View Presentation Video C. Cui, S-H Lee, J-Y Kim, J. Yi, D-W Kim, K-J Jung, D-H Kim Yonsei University, Seoul, Korea, Republic of Impact: This work proposed a deep anti-aliasing prior to remove the ringing artifacts from various sources in a zero-shot manner.
		Computer Number: 18 3361. Single breath-hold lung T2* mapping using multi-echo 3D spiral UTE with tight interval δTE J. Zhao, Y. Cao, W. Liu, Q. Zeng, S. Wang, H. Wang, W. Tang, D. Han CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China Impact: Our proposed method enables single breath-hold lung T₂^* quantification with a 0.57 ms echo interval and 2 mm in-plane resolution. Rapid and accurate T₂^* assessment in the lungs is crucial for evaluating structural and functional changes caused by lung diseases.
		Computer Number: 19 3362. Impact of Segmentation Errors on QSM-based Brain Iron Estimation View Presentation Video F. Salman, N. Bergsland, M. Dwyer, B. Weinstock-Guttman, R. Zivadinov, F. Schweser Buffalo Neuroimaging Analysis Center, Department of Neurology at the Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, United States Impact: This study highlights that segmentation method choice impacts clinical findings on iron pathology in MS, underscoring the importance of accurate segmentation for unbiased interpretation of neuroimaging data.
		Computer Number: 20 3363. Pixelwise Adaptive Polynomial Subspace Reconstruction for Accelerated CMR Perfusion Imaging View Presentation Video S. Zhao, S. Liu, Q. Chen, X. Wang, M. Salerno UCSF, San Francisco, United States Impact: This pixelwise subspace approach enhances various subspace-regularized reconstructions, with the polynomial basis offering a versatile, predefined subspace for numerous MRI applications.
		Computer Number: 21 3364. A Novel Distortion-Matched Anatomical Imaging Technique for High-Fidelity Functional Mapping onto a True-Brain Atlas View Presentation Video S. D. Yun, P. Pais-Roldán, J. Lee, N. J. Shah Forschungszentrum Juelich, Juelich, Germany Impact: The proposed MP2EPI scheme simultaneously acquires both original and reverse phase-encoding EPI, enabling effective distortion correction in distortion-matched anatomical scans. Distortion-corrected MP2EPI enhances functional mapping for submillimetre fMRI, exhibiting greater alignment with the true-brain atlas, as measured by MP2RAGE.
		Computer Number: 22 3365. Combined caLculation of Ultra-high field Biases (CLUB) with Sandwich: fast, simultaneous estimation of 3D B0 and multi-channel B1+ maps for 7T MRI View Presentation Video N. Pato Montemayor, J. Philippe, J. Kent, A. Hess, A. Klauser, E. Sleight, L. Bacha, T. Di Noto, B. Maréchal, P. Liebig, J. Herrler, D. Nickel, R. Heidemann, J-P Tiran, T. Kober, T. Hilbert, T. Yu, G. F. Piredda Siemens Healthineers International AG, Lausanne, Switzerland Impact: The proposed CLUB-Sandwich sequence enables rapid, simultaneous ΔB₀ and B₁⁺ mapping at 7T without accuracy reduction, providing a faster method for optimizing parallel transmission pulses, increasing efficiency in ultra-high field MRI applications.
		Computer Number: 23 3366. Outer-Volume Suppressed Accelerated CMR via Static Tissue Subtraction View Presentation Video S. Zhao, S. Liu, Q. Chen, X. Wang, M. Salerno UCSF, San Francisco, United States Impact: This technique can be applied to other dynamic CMR applications with a largely static FOV region. It eliminates the need for outer volume suppression, enhancing acquisition efficiency with a reduced FOV and supporting higher acceleration rates in reconstruction.
		Computer Number: 24 3367. Simplex Mesh Signal Representation for Modeling Susceptibility-Induced Distortion View Presentation Video A. Toews, B. Hargreaves Stanford University, Stanford, United States Impact: A continuous piecewise linear signal representation (simplex mesh) improves forward modeling efficiency in the presence of background field gradients. This work can help improve multi-readout distortion correction methods for FSE near metal and EPI in the brain.
		Computer Number: 25 3368. Deep Learning Approaches for Banding Artifact Suppression in Single Phase-Cycled bSSFP View Presentation Video H-R Choi, S-H Park Korea Advanced Institute of Science and Technology(KAIST), Daejeon, Korea, Republic of Impact: With only one phase-cycling data, deep learning models, particularly Restormer, effectively suppress bSSFP banding artifacts, resulting in high-quality, artifact-suppressed images that maintain the speed and SNR benefits of bSSFP, facilitating effective clinical judgments and future research.
		Computer Number: 26 3369. Ultra-short-TR FlamingFIESTA enhances robustness of matrix-pencil functional lung MRI in pediatric cystic fibrosis patients on 1.5T GE systems View Presentation Video R. Heule, G. Bauman, A. De Silvestro, T. Sprenger, O. Pusterla, H. Ryden, G. Raffler, S. Vogt, J. Usemann, J. Geiger, A. Moeller, S. Skare, O. Bieri, C. Kellenberger, A. van Niekerk Center for MR Research, University Children's Hospital, Zurich, Switzerland Impact: Ultra-short-TR FlamingFIESTA imaging considerably improves image quality and consequently functional outcome of matrix-pencil pulmonary MRI on 1.5T GE systems. This constitutes a crucial step to expand access to matrix-pencil MRI and provide a contrast agent-free alternative for chronically ill patients.
		Computer Number: 27 3370. Unsupervised Separation of (Multiple) Pilot Tone Signals From Images Using Weighted PCA View Presentation Video R. Bhansali, S. Anand, P. Krahn, M. Lustig UC Berkeley, Berkeley, United States Impact: We present a simple unsupervised approach to separate Pilot Tone signals from MRI data, offering a more accurate representation of PT than Fourier-based methods. It is general and works across scan settings to remove PT leakage artifacts and enable motion-sensing.
		Computer Number: 28 3371. Frequency-modulated bSSFP: A novel and time-efficient approach for multiparametric mapping View Presentation Video N. Plähn, Y. Safarkhanlo, E. Pepper, B. Açikgöz, J. Bastiaansen Interventional and Pediatric Radiology (DIPR), Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland Impact: Using frequency-modulated bSSFP as an alternative to phase-cycled bSSFP for biomarker quantification introduces new opportunities to accelerate the data acquisition. With steady-state preparation required only once, scan time is reduced, and transient state dead-time is minimized.
		Computer Number: 29 3372. Real-time Correction of Respiration-Induced B0 Fluctuations in Oscillating Steady State fMRI using FID Navigators (FIDNavs) View Presentation Video M. Salifu, K. Wang, S. Huang, D. Noll University of Michigan, Ann Arbor, United States Impact: This study proposes a robust zeroth-order (bulk) prospective correction method for OSSI, a phase-cycled steady-state fMRI sequence. Our approach is effective in reducing B₀-induced signal changes, allowing realization of theoretical SNR gains in complex steady-state MRI sequences.
		Computer Number: 30 3373. Dynamic off-resonance correction in 3D-EPI using dual FID navigators View Presentation Video O. Norbeck, S. Skare, S. Schauman, H. Rydén, T. Sprenger, E. Avventi, A. van Niekerk Karolinska University Hospital , Stockholm, Sweden Impact: This correction method enables artifact reduction in 3D-EPI imaging, improving image quality for studies affected by breathing-induced B₀ fluctuations. It offers potential for application in functional and structural MRI, advancing the reliability of 3D-EPI sequences for clinical and research use.
		Computer Number: 31 3374. Do second-order motion-compensation gradients and spiral sampling suppress phase variations in DWI? View Presentation Video W. Zhong, Y. Jiang, H. Guo Tsinghua University, Beijing, China Impact: This study confirms the necessity of trigger in motion-compensated stack of spiral, as whole-brain single-slab DWI cannot be achieved without it.
		Computer Number: 32 3375. GABA-edited 7T spectroscopy using semi-adiabatic spatial-spectral pulses (GABA-SASSI) improves sensitivity, SAR and water suppression G. Verma, S. Rashid, P. Balchandani Icahn School of Medicine at Mount Sinai, New York, United States Impact: This pilot project demonstrates the implementation and performance of the GABA SASSI sequence for spectral editing with B1 insensitivity at 7T. The GABA SASSI sequence offers faster performance and inherently superior water suppression compared to MEGA PRESS.

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