|  | Computer Number: 145 4729. Simultaneous Assessment of Intracranial Artery and CSF Pulsation Using 3D Whole-brain Diffusion-prepared-bSSFP Cine MRIC. Ni, X. Hou, K. Hashemizadeh, S-E Kim, Q. Wen, C. Yuan, X. Ma University of Utah, Salt Lake City, United States Impact: Our diffusion-prepared 3D black-blood cine MRI visualizes artery and CSF pulsation simultaneously, reduces scan time, and circumvents image registration. It allows for comprehensive evaluation of vascular function and CSF dynamics, potentially facilitating the early detection and monitoring of cerebrovascular diseases. |
|  | Computer Number: 146 4730. Optimizing Choroid Plexus Segmentation using nnU-Net: Comparisons among Multimodal MRI Input CombinationsE. Jeong, Y. Choi Asan Medical Center, Seoul, Korea, Republic of Impact: Our findings demonstrate that 3D-CE-T1WI significantly improves
the accuracy of CP segmentation. This multimodal approach would facilitate more
reliable volumetric analysis in both research and clinical settings. |
|  | Computer Number: 147 4731. 4D-Flow imaging of perivascular CSF and blood flow coupling using an ultra-high performance head-only systemT. Vikner, L. Rivera-Rivera, Z. Yardim, B. Jolicoeur, K. Johnson University of Wisconsin, Madison, United States Impact: The current approach shows that 4D flow imaging of very slow CSF motion is feasible using high-performance head-only systems. The proposed method and our preliminary data could benefit our current understanding of human blood-CSF flow relationships and neurofluid flow dynamics. |
|  | Computer Number: 148 4732. Correcting the Effects of Patient Bulk Motion on DENSE Measures of Cardiac Induced Brain DisplacementC. Doctor, L. Rivera-Rivera, L. Eisenmenger, S. Johnson, K. Johnson University of Wisconsin, Madison, United States Impact: DENSE scans with and without induced motion were acquired, to evaluate and correct the effects of patient bulk motion. Our motion correction methods were effective in correcting for both rotational and translational bulk motion and demonstrated repeatability in test-retest analysis.
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|  | Computer Number: 149 4733. Towards reproducible perivascular space quantification: an open-source perivascular space segmentation benchmarkM. van der Thiel, E. van Heese, B. van den Heuvel, V. Molina, M. Jaramillo, J. Jansen, J. Bernal Maastricht University Medical Center, Maastricht, Netherlands Impact: The efforts of the PVS repository team will establish an open-source platform for software code related to PVS quantification, minimizing duplicate development, enhancing reproducibility, and providing a benchmark for future development and comparison of segmentation methods. |
|  | Computer Number: 150 4734. Investigating the Influence of CSF on Diffusion Characteristics in the Parasagittal DuraC-H Liao, Y-Y Cheng, C-W Chen, C-H Hsieh, S-L Peng, H-C Chang, S-C Lin, Y- Lee, C-C Lin, C-W Lin, Y-J Liu Feng Chia University, Taichung, Taiwan Impact: Given that DWI can be utilized to assess the
circulatory condition of the parasagittal dura, our study investigates the
influence of CSF on the diffusion of the parasagittal dura using both FLAIR-DWI
and conventional DWI across low and high b-values. |
|  | Computer Number: 151 4735. Cerebrospinal Fluid Flow is Locked to Spontaneous BOLD Signal Fluctuations in the Subarachnoid Space and VentriclesD. Chen, F. Wang, J. Polimeni, Z. Dong, L. Lewis Massachusetts Institute of Technology, Cambridge, United States Impact: Using a novel technique obtaining simultaneous CSF flow and BOLD signals, we observed significant CSF flow changes in subarachnoid space and ventricles during spontaneous BOLD fluctuations, establishing the role of low-frequency hemodynamics in driving whole-brain directional CSF flow. |
|  | Computer Number: 152 4736. Effect of Cardiac- and Respiratory-driven Tissue Motion on Microscopic Velocity Measurement of Neurofluid based on Complex-valued PropagatorY. Kobayashi, K. Murayama, S. Yatsushiro, K. Watanabe, K. Kuroda Tokai University, Kanagawa, Japan Impact: The results implies that the QSI-based quantitative visualization of neurofluid velocity is feasible even under pulsatile tissue motion occurring in the brain. Such quantitative technique will make one step further to elucidate the mechanism of neurowaste clearance system. |
|  | Computer Number: 153 4737. Perivascular cerebrospinal fluid inflow matches interstitial fluid efflux in anesthetized rat brainsK. Mortensen, T. Lilius, M. Rosenholm, B. Sigurðsson, D. Kelley, M. Nedergaard Hvidovre Hospital, Hvidovre, Denmark Impact: Our novel CSF inflow measurement method underscores a probable connection between brain waste clearance and cerebrospinal fluid inflow. It provides a quantitative platform for future biomarkers in both preclinical and clinical investigations of brain waste clearance and CSF circulation. |
|  | Computer Number: 154 4738. Assessing Slow Cerebrospinal Fluid Flow Dynamics with Displacement Encoded MRIE. Karasan, M. Lustig UC Berkeley, Berkeley, United States Impact: This study demonstrates the potential of DENSE and DiSpect MRI to capture slow CSF flow dynamics, offering a valuable tool for detailed studies of CSF clearance mechanisms. This approach could enhance understanding of neurological conditions linked to brain clearance. |
|  | Computer Number: 155 4739. Visualization of Neurofluids Movement in Mouse Brain Parenchyma by Q-space imagingK. Murayama, Y. Kobayashi, K. Watanabe, S. Yatsushiro, K. Kuroda Tokai university, Kanagawa, Japan Impact: The regular movements of water molecules of a 1-10 μm/s were observed in the corpus callosum and fimbria in the brain parenchyma, indicating that it may be associated with cerebrospinal fluid, which is thought to move along white matter tracts. |
|  | Computer Number: 156 4740. Changes in Cerebrospinal Fluid Dynamics in the Whole Brain with Ultrasound Pulsed Stimulation: A Feasibility StudyT. Rafiq, T. Choi, H. Lee, R. E. Yoo, S. H. Choi, J. Park, J. Park Sungkyunkwan University, Suwon, Korea, Republic of Impact: This study highlights enhanced CSF dynamics over
the whole brain in rats with the LIFU-induced stimulation, potentially
facilitating waste clearance in glymphatic system. |
|  | Computer Number: 157 4741. Cerebrospinal Fluid Flow within Ventricles and Perivascular Subarachnoid Space Evaluated by Velocity Selective Spin Labeling MRIY. Wu, F. Xu, D. Zhu, A. Li, K. Wang, Q. Qin, J. Xu Johns Hopkins University, Baltimore, United States Impact: This study underscores the potential of VSSL MRI as a non-invasive tool for investigating CSF dynamics in both PVSAS of arteries and ventricles, offering significant insights into CSF circulation in both healthy and pathological conditions. |
|  | Computer Number: 158 4742. Indirect Deuterium Displacement Imaging for Non-Invasive High-Resolution CSF Production MappingD. De, N. Bateman, A. Nazeri, S. Pan, J. Quirk, J. Strahle Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, United States Impact: Deuterium displacement MRI enables precise, non-invasive mapping of cerebrospinal fluid (CSF) production, advancing neurofluid disorder research. It enhances understanding of CSF dynamics and neurotoxin clearance, especially in brain regions associated with neurodegenerative diseases. |
|  | Computer Number: 159 4743. Imaging glymphatic flow: Initial results using inversion-prepped gradient recalled echo (GRE) diffusion imagingS-H Oh, K. Sakaie, G. Lee, S. Jones, M. Lowe The Cleveland Clinic Foundation, Cleveland, United States Impact: We present a new approach to image the
glymphatic system. With further development, early detection and evaluation of
intervention strategies for a broad range of neurodegenerative diseases may
become possible. |
|  | Computer Number: 160 4744. Highly-accelerated CSF-STREAM: two-fold faster CSF-mobility and FA measurement in PVS, via Locally Low Rank reconstructionM. Debiasi, M. J. van Osch, Y. Dong, L. Hirschler C.J. Gorter MRI Center, Radiology, Leiden UMC, Leiden, Netherlands Impact: The improvement in acquisition speed makes CSF-STREAM more
suitable to fit into scanning protocols including patients. Together with the improvement
in the reconstruction, we made CSF-STREAM a powerful, contrast-free sequence to
study glymphatics in humans in-vivo. |