Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition

Hemodynamics and Flow

Oral

Cardiovascular

Thursday, 14 May 2026

Meeting Room 2.60

16:00 - 17:50

Moderators: Isabel Montón Quesada & David Marlevi

Session Number: 630-03

CME/CE Credit Available

Similar Sessions

Use of phase contrast 4D flow to assess vascular and cardiac flows in health and disease

Skill Level: Basic

16:00		630-03-001. Introduction David Marlevi Karolinska Institutet, Solna, Sweden
16:11		630-03-002. BLIPNAV: A bipolar gradient-based approach for self-gating in free-running whole-heart radial flow MRI Efena Akporeha, Paolo Garelli, Fabienne Dirbach, Jean-Baptiste LEDOUX, Isabel Montón Quesada, Augustin Ogier, Tobias Rutz, Jérôme Yerly, Michael Markl, Ruud van Heeswijk, Matthias Stuber, Christopher Roy Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland Impact: Using bipolar gradients for self-gating in free-running flow MRI eliminated the need for SI projections, which simplifies sequence design and improves the temporal precision of the acquired self-gating signals, paving the way for more robust motion-resolved free-running flow MRI.
16:22		630-03-003. Statistical assessment of anatomical and hemodynamic variations in ascending aortic disease - a combined MRA and 4D Flow MRI Pau Romero, Meritxell Meritxell Pardo-Rel, Saara Sillanmäki, Marja Hedman, David Marlevi Karolinska Institutet, Solna, Sweden Impact: As a proof-of-concept, the study presents a novel paradigm for quantifying statistical flow models (SFM), providing coupling to traditional statistical shape modellign (SSM) but here encoding volu- metric hemodynamics from 4D Flow MRI; all presented in a clinical aortic cohort.
16:33		630-03-004. Arrhythmia-Resolved Heart-Brain Hemodynamic Relationships in Atrial Fibrillation: A Feasibility Study Anahita Najafi, Justin Baraboo, Thara Nallamothu, Mingyue Zhao, Theresa Benson, Shifa Banani, Rod Passman, Daniel Lee, Daniel Kim, Kelly Jarvis Northwestern University Feinberg School of Medicine, Chicago, United States of America Impact: We demonstrated the feasibility of an arrhythmia-resolved heart-brain MRI protocol that quantifies hemodynamics across various heartbeat lengths in arrhythmia. This approach enables investigation of potentially adverse hemodynamics that may contribute to brain injury in atrial fibrillation.
16:44		630-03-005. Dual-venc 5D flow MRI in under 10 minutes using alternating 4-point encoding and kt-GRAPPA-initiated compressed sensing Thara Nallamothu, Elizabeth Weiss, Justin Baraboo, Paolo Garelli, Joshua Robinson, Cynthia Rigsby, Christopher Roy, Matthias Stuber, Michael Markl Biomedical Engineering, Northwestern University, Chicago, United States of America Impact: The proposed dual-venc 5D flow technique captures an extended velocity dynamic range with a reduced noise profile and only 1-minute increased scan time. Potential applications include congenital heart disease, where slow flow and fast stenotic flow may be imaged simultaneously.
16:55		630-03-006. k-t-v GRAPPA for highly-accelerated 4D flow acquisitions Kevin Moulin, Limin Zhou, Nicholas Kneier, Shannen Kizilski, Andrew Powell Boston Children's Hospital and Harvard Medical School, Boston, United States of America Impact: Time-velocity “k-t-v” GRAPPA allows high acceleration factors and accurate 4D flow velocity measurements. k-t-v GRAPPA demonstrated improved SNR and flow fidelity compared to GRAPPA and k-t GRAPPA at high acceleration factor (R>9) on phantom and in vivo.
17:06		630-03-007. Intracranial Venous Sinus Hemodynamics under Simulated Microgravity: A 7-Day Head-Down Tilt 4D Flow MRI Study Zhanxin Wu, Huanran Hou, Pengfei Zhao, Pengling Ren, Zhenchang Wang Beijing freindship hospital, Capital Medical University, Beijing, China Impact: Simulated microgravity induces progressive and reversible alterations in intracranial venous sinus hemodynamics. 4D flow MRI enables quantitative, time-resolved assessment of cerebral venous adaptation, offering mechanistic insights into spaceflight-associated neuro-ocular syndrome and cerebrovascular regulation in microgravity.
17:28		630-03-009. A Fully Automated Pipeline for Multi-Region 4D Flow MRI Analysis Yuyang Ren, Ruiyu Cao, Zijian Zhou, Chengyan Wang, Hao Li, Peng Hu ShanghaiTech University, Shanghai, China Impact: This pipeline significantly reduces the time required to analyze 4D flow data, enabling better integration of 4D flow MRI into clinical practice.
17:39		630-03-010. Guided Discussion Isabel Montón Quesada Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland