Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition • 09-14 May 2026
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463-03-001.
Multi-echo fMRI improves breath-hold BOLD cerebrovascular reactivity estimates in stroke
Impact: These results highlight the
benefits of a multi-echo fMRI protocol for improved CVR characterization and
support its translation into clinical practice, potentially enabling personalized
stroke rehabilitation strategies and improved prediction of recurrent stroke
risk.
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463-03-002.
Oxygenation and Perfusion Pattern of Grey Matter and White Matter in Ischemic Stroke
Impact: Oxygenation and perfusion pattern estimated by MRI showed similarity
and discrepancy between grey matter and white matter in ischemic stroke,
indicating different neuropathology and prognostic value.
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463-03-003.
Macrovascular Arterial Transit Time from 4D ASL-MRA: A Novel Hemodynamic Biomarker in Intracranial Steno-Occlusive Disease
Impact: Macrovascular
arterial transit time (mATT) proved sensitive to cerebrovascular changes after
vasodilation and revealed key pathological abnormalities, highlighting its
potential as a noninvasive hemodynamical biomarker for tracking disease
progression and guiding management of patients with intracranial
steno-occlusive disease.
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463-03-004.
Reduced Structural and Perfusion Alterations with Smaller Lesion Volume after Ischemia-Reperfusion Injury in FKBP51 Knockout
Impact: This study reveals FKBP51 as a genetic determinant of ischemic
lesion development. The findings may inspire new research on molecular
mechanisms of ischemic resilience, advancing precision diagnosis and
individualized stroke treatment strategies.
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463-03-005.
Early Changes in Oxygen-Metabolism Biomarkers Predict Long-Term Recovery in Ischemic Stroke Patients
Impact: This study demonstrated that QQ-based
OEF and CMRO2 maps can serve as biomarkers for predicting ischemic stroke
recovery in the early stage after stroke onset, enabling clinicians to incorporate early OEF and CMRO2 measurements into
treatment decisions.
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463-03-006.
Diagnostic accuracy of ultra-low-field MRI for strokes in the anterior circulation depending on infarct size and location
Impact: Acute infarct evaluation in the anterior circulation with ultra-lowfield portable MRI (ULF-pMRI) has a different diagnostic accuracy depending on the location and volume of the infarct. Detection rate of small infarcts and infarcts in deep brain areas is limited.
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463-03-007.
The hyperintensity vessel sign in intracranial atherosclerotic disease reflects the status of cerebral hemodynamics
Impact: Our study found hyperintensity vessel sign score on high-resolution magnetic resonance vessel wall imaging (HR-VWI) can reflect the degree of cerebral perfusion impairment, suggesting that HR-VWI can identify the risk of cerebral ischemia in patients with intracranial atherosclerotic stenosis.
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463-03-008.
Imaging of Capillary and Venous Blood Transit in Sickle Cell Anemia
Impact: Findings
are consistent with shortened capillary residency times in hemolytic anemia,
which could provide a new biomarker of ischemia risk in sickle cell anemia patients.
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463-03-009.
Clinical Utility of SWI-EPI for Penumbra Estimation using SWI–DWI Mismatch and its Comparison with ASL–based PWI–DWI Mismatch
Impact: EPI-based SWI demonstrates strong agreement with
ASL-based perfusion in identifying the hypoperfused regions in acute ischemic
strokes. Its ability to capture microvascular oxygenation changes through
endogenous susceptibility contrast highlights its potential as a rapid,
non-contrast alternative for penumbra estimation.
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463-03-010.
Cerebral metabolism changes after successful reperfusion in ischemic stroke patients
Impact: Cerebral metabolic rate of oxygen, obtained with clinically
adaptable MRI methods may be utilised to uncover novel pathophysiological
insight in infarct evolution and recovery in ischemic stroke patients.
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463-03-011.
Imaging Infarct Progression, Penumbra, and Future Infarction using IVIM MRI in Stroke
Impact: Acute
ischemic stroke perfusion imaging is relevant to treatment decisions by showing
if regions of the brain parenchyma are salvageable. IVIM could simultaneously
capture perfusion/diffusion for penumbra and core infarct to predict future infarct
development in acute ischemic stroke.
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463-03-012.
Mapping Cerebrovascular Reactivity: Comparison of Gradient Echo and Spin Echo BOLD with Arterial Spin Labelling
Impact: The
new sequence acquisition on healthy subjects shows that SE-BOLD
fMRI may deliver a marker of CVR that resembles the ASL-derived
physiological CVR more closely than CVRGE-BOLD,
with the advantage of high signal-to-noise ratio compared to ASL.
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463-03-013.
Whole-Head Simulation of Thermal-Metabolic Feedback Effects on Cellular Function and Intracellular Na During Ischemic Stroke
Impact: A
multi-physics, multi-scale model of ischemic stroke can provide insight into
cellular-level metabolite dynamics as affected by ischemia and associated
exacerbating inter-dependent effects of local temperature increase.
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463-03-014.
Global and local arterial input functions for DSC MRI using physics-guided neural network with recirculation modeling
Impact: The physics-guided neural network trained with
large-scale simulations based on a physiologically realistic model provides both
global and various local arterial input functions (AIFs) automatically with no
manual selection, achieving higher accuracy and more robust physiological
interpretation.
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463-03-015.
The impact of reperfusion onset on QQ-derived oxygen metabolism in experimental ischemic stroke
Impact: Reestablishment of brain oxygen
metabolism may be a key predictor of ischemic stroke outcome after reperfusion
therapy. We aim to demonstrate
feasibility of new MRI-derived oxygen extraction fraction (OEF) estimation methods
in an experimental stroke model while addressing this topic.
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© 2026 International Society for Magnetic Resonance in Medicine