ISMRM25 - Putting Heart into Advancing Quantitative Imaging

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

Putting Heart into Advancing Quantitative Imaging

Digital Poster

Acquisition & Reconstruction

Monday, 12 May 2025

Exhibition Hall

14:45 - 15:45

Session Number: D-05

No CME/CE Credit

		Computer Number: 1 1817. Relaxation compensation in preparation-based cardiac B1+ mapping View Presentation Video H. Post, M. Božić-Iven, P. Šiurytė, Y. Zhang, C. Coletti, A. Cernicanu, C. van de Steeg Henzen, Q. Tao, S. Weingärtner TU Delft, Delft, Netherlands Impact: Confounder-corrected preparation-based B1+ mapping enables robust B1+ map quality in the human heart. Confounder correction can help to further reduce bias, which may be particularly important for assessing B1+ trends across tissue boundaries with different T1rho times.
		Computer Number: 2 1818. Conditional Diffusion Model with K-space Guidance for Highly-Accelerated Cardiac Cine MRI Reconstruction View Presentation Video H. Shi, X. Tang, L. Xu, Y. Zhao, Q. Liu, Y. Zhou, Q. Liu, J. Xu, C. Zhu, H. Li University of Washington, Seattle, United States Impact: A new framework with diffusion models is proposed for cardiac cine reconstruction. It utilizes high-quality reconstruction of generative models and provides reliable results by data consistency control. The method is applicable to other dynamic MRI reconstructions in highly undersampled scenarios.
		Computer Number: 3 1819. Comparison of reconstruction methods of highly accelerated 3D dynamic cardiovascular MRI using the 4D XCAT phantom View Presentation Video Y. Ren, Z. Zhou, P. Hu ShanghaiTech University, Shanghai, China Impact: A numerical phantom has been provided, along with the implementation and comparison of three different reconstruction methods. The code is available at https://github.com/AssociatedPrimeIdeal/MRI_TorchRecon
		Computer Number: 4 1820. The effect of electrocardiogram missed-triggering on T1 measurements in cardiac MRI View Presentation Video K. Rehakova, P. Gatehouse, A. Scott, M. Usman Imperial College London, London, United Kingdom Impact: The robustness of MOLLI 5(3)3 cardiac T1 mapping in the presence of ECG missed-triggering events at normal heart rates has been investigated, allowing clinicians to gain an insight into its diagnostic value, where ECG is not reliable due to missed-triggering.
		Computer Number: 5 1821. 4D cardiac QSM acquisition and reconstruction of Free-Breathing ECG Gated Data: Initial Feasibility View Presentation Video G. Baskar, M. Thein, J. Smink, N. Hibino, M. Prince, Y. Wang, A. Dimov, K. Kawaji Illinois Institute of Technology, Chicago, United States Impact: This study establishes initial feasibility for a 4D free-breathing QSM approach in cardiac imaging, overcoming artifacts due of air-tissue interfaces and demonstrating robustness in mapping across cardiac phases.
		Computer Number: 6 1822. Self-gated respiratory-resolved 4D T1 mapping of the carotid vessel wall with B1+ correction View Presentation Video I. Montón Quesada, P. Calarnou, J-B Ledoux, J. Yerly, M. Stuber, A. Ogier, R. van Heeswijk Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland Impact: End-expiratory T₁ mapping generated with a respiratory-resolved free-running framework using inversion pulses and an interleaved double flip angle technique reduces T₁overestimation in the carotid vessel wall and offers improved intersubject variability compared to single flip angle and MOLLI maps.
		Computer Number: 7 1823. Early Detection of Asymptomatic LVNC: Diagnostic Utility of Non-Contrast T1 Mapping in Routine Screening View Presentation Video R. Zhang, Y. Hao, Y. Zhu The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China Impact: Non-contrast T1 mapping effectively detects early myocardial abnormalities in asymptomatic LVNC, allowing precise, routine screening and facilitating early intervention without the need for contrast agents.
		Computer Number: 8 1824. Phase unwrapping 4D flow MRI by iterative graph cuts View Presentation Video M. Liljeblad, S. Qazi, T. Bianchessi, P. Dyverfeldt, J. Berglund Uppsala University Hospital, Uppsala, Sweden Impact: The proposed method shows promise for phase unwrapping 4D flow MRI, extending the dynamic range of 4D flow MRI and reduces the need for multi-VENC acquisitions in clinical cardiac MRI.
		Computer Number: 9 1825. Camera-based Cardiac Triggering in Functional Cardiac MR View Presentation Video S. Weiss, J-H Wuelbern, J. Sénégas, C. Stehning, K. Blom, A. Kok, C. Possanzini, J. Smink, R. Springorum, P. Ramamurthy Philips Innovative Technologies, Hamburg, Germany Impact: The presented work provides evidence that flow quantification and T1 mapping is feasible with contactless cardiac cycle detection. The proposed method allows cardiac MRI without placement of ECG electrodes, thus increasing accessibility of cardiac MR.
		Computer Number: 10 1826. Optimal Dual-VENC with 3D radial sampling for improved quantification in 4D Flow MRI: An in vitro validation study View Presentation Video M. Beghella, D. Garcia, F. Nicoud, D. Chechin, L. Boussel, P. Douek, S. Boccalini, M. Sigovan University of Lyon, CNRS, CREATIS Laboratory, Lyon, France Impact: Improved velocity quantification of fast arterial and slow venous flows in the same imaging volume with significantly shorter acquisition times may be achievable with 3D radial sampling and optimal combination dual-VENC 4D Flow MRI in patients.
		Computer Number: 11 1827. Optimizing Imaging Quality for Quantitative Multi-Contrast Atherosclerosis Characterization (qMATCH): Transverse versus Coronal Imaging View Presentation Video Y-C Hsu, M. Lu, M. Keushkerian, K-L Nguyen, K. Johnson, M. Altbach, H. Morris, K. Demarco, V. Deshpande, D. Mitsouras, D. Saloner, S. McNally, S-E Kim, J. Roberts, R. Hadley, G. Treiman, D. Parker, D. Li, Y. Xie Cedars-Sinai Medical Center, Los Angeles, United States Impact: The results provide an optimal imaging strategy for using qMATCH in carotid atherosclerosis assessment. We demonstrate a tailored approach by incorporating both transverse and coronal acquisitions.
		Computer Number: 12 1828. Simultaneous 3D T1- and T2-mapping of abdominal aortic aneurysms with black blood and fat suppression View Presentation Video W. Stehling, E. Aalbregt, M. Wennen, E. Schrauben, P. van Ooij, K. K. Yeung, A. Nederveen, O. Gurney-Champion Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, Netherlands Impact: An abdominal aortic aneurysm poses a risk of rupture, leading to high mortality rates. The proposed black-blood fat suppressed simultaneous T1- and T2-mapping approach in AAAs may provide additional biomarkers to estimate rupture risk.
		Computer Number: 13 1829. Accelerated myocardial T1 mapping at low field View Presentation Video C. J. Mangama Sindzi, A. Tyler, K. Kunze, C. Rogers, A. Neofytou, L. Huang, R. Razavi, A. Chiribiri, S. Roujol King's College London, London, United Kingdom Impact: Accelerated myocardial T1 mapping with improved precision will reduce the duration of multi-slice myocardial T1 mapping protocol and may provide increase spatial coverage to existing protocol with limited slice coverage.
		Computer Number: 14 1830. Residual neural network simultaneous cardiac T1⍴ and T2 mapping using a combined spin echo, spin lock pulse sequence View Presentation Video E. Gibbons, J. Mendes, E. DiBella Weber State University, Ogden, United States Impact: This method enhances cardiac imaging by enabling simultaneous T1rho and T2 mapping in a single acquisition, reducing scan time and improving accuracy. It provides more consistent myocardial tissue characterization, potentially aiding early diagnosis and treatment planning for heart disease.
		Computer Number: 15 1831. Efficient Use of Acquisition Time in T2 and T1p Relaxation Maps View Presentation Video J. Mendes, N. Jacobs, E. Kwan, A. Arai, R. Ranjan, E. DiBella University of Utah, Salt Lake City, United States Impact: The acquisition time of T2/T1p relaxation maps can be reduced with shortened recovery times and single-shot image readouts corrected with signal modeling. Alternatively, the same method can be used to increase the accuracy of relaxation maps without increased acquisition time.
		Computer Number: 16 1832. Enhancing bSSFP cine imaging in cardiac device patients with twofold phase cycling and cross-attention transformer network View Presentation Video Z. Chen, H. Chen, Y. Emu, J. Gao, X. Tang, J. Hu, W. Fan, C. Hu Shanghai Jiao Tong University, Shanghai, China Impact: Our method considerably increases the feasibility of bSSFP imaging in CIED patients at high fields.

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