Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition • 09-14 May 2026
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369-02-001.
Neuromelanin MRI Reveals Spatial Signatures and Dopaminergic Coupling in Parkinson’s Progression
Impact: NM-MRI
yields semiquantitative biomarkers to track nigrostriatal
integrity, that correlate with 18F-DOPA uptake and motor severity,
and may aid early diagnosis, patient stratification, and longitudinal staging.
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369-02-002.
Elevated Cerebral Oxygen Extraction Fraction in Parkinson’s Disease Correlates with Motor Impairment Severity
Impact: Elevated oxygen extraction fraction in early Parkinson’s disease reveals abnormal cerebral oxygen metabolism linked to motor impairment. Noninvasive MRI measurement of cerebral oxygenation offers insight into Parkinson's disease pathophysiology and a potential biomarker for monitoring disease progression.
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369-02-003.
Classification of Parkinsonian Disorders: An Integrated Quantitative MRI Model
Impact: Integration of deep learning-derived nigrosome-1, neuromelanin and FW-DTI metrics from presenting 3T MRI aids classification prediction of Parkinsonian disorders (iPD vs sPD vs aPD) at 3-year clinic follow-up, with potential as objective, automated clinical decision support tools in patient management.
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369-02-004.
T1w/T2w-Derived Brain Age Gap in Parkinson’s disease and Correlations with Clinical and Neuropsychological Scores
Impact: This study demonstrates that integrating myelin-sensitive T1w/T2w
imaging with machine learning-based brain age estimation can effectively
identify disease-related aging patterns and their clinical correlates. This
methodology provides a framework for developing neuroimaging biomarkers to
track neurodegenerative progression
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369-02-005.
Disentangled Susceptibility in Healthy Controls, Rapid Eye Movement Sleep Behavior Disorder and Parkinson's Disease
Impact: Noninvasive, clinically-routine, quantitative susceptibility mapping may discriminate between healthy volunteers, rapid eye movement sleep behavior disorder, and
early-stage Parkinson’s disease. Asymmetric iron deposition in the substantia
nigra is potential biomarker in rapid eye movement sleep behavior disorder and
Parkinson’s disease.
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369-02-006.
Detecting Neuromelanin Contrast in Substantia Nigra and Locus Coeruleus Utilizing Amplitude Maps of MRV: A Preliminary Study
Impact: MRV not only effectively enhances blood signal, but also accentuates neuromelanin contrast on amplitude map using small FA excitation with short TR and TE. The study provides a novel perspective for further investigation into the neuromelanin contrast mechanisms in MRI.
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369-02-007.
Automated Synthetic Contrast-Enhanced MRI Improves Choroid Plexus Segmentation in Parkinsonian Syndromes.
Impact: Synthetic
contrast-enhanced MRI enables gadolinium-free ChP imaging, improving
segmentation accuracy and early detection of neurodegenerative changes. This
approach supports safer longitudinal monitoring, broader clinical adoption, and
further investigation of ChP-based biomarkers in Parkinsonian syndromes and
related neurological disorders.
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369-02-008.
Free Water Alterations in White Matter Associated with Freezing of Gait in Parkinson’s Disease
Impact: FW imaging reveals white matter microstructural
disruption in FOG, offering a more specific marker of neuroinflammation and
degeneration than conventional DTI.
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369-02-009.
An exploratory study comparing Dynamic functional connectivity with 1H-MRS in Parkinson’s disease
Impact: The
combined MRS and dynFC approach offers a complementary framework to understand correlation
between cortical metabolic alterations and network-level dysfunction. The metabolic
signatures or network metrics could thereby be used to predict therapeutic
response to pharmacological/ neuromodulatory dopaminergic therapy.
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369-02-010.
Correlation Analysis Between Apathy Symptoms and Multi-Parameter Glymphatic Indicators in Parkinson's Disease
Impact: This study identifies choroid plexus volume as an independent predictor of apathy in PD using multi-parametric glymphatic metrics. It provides a novel imaging biomarker and therapeutic target for this debilitating symptom.
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369-02-011.
Choroid Plexus Hemodynamic Impairment and Glymphatic Dysfunction in Parkinson's Disease Revealed by Multi-Delay ASL
Impact: This study reveals CP
hypoperfusion as a key feature of glymphatic disruption in PD. m-ASL provides
noninvasive biomarkers for blood-CSF barrier dysfunction, enhancing
understanding of neurodegenerative fluid dynamics.
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369-02-012.
Multimodal Graph Contrastive Learning (MG-CL) for Parkinson’s Disease Diagnosis
Impact: This
research provides an effective framework in the diagnosis of one of the most
common neurodegenerative conditions, and ultimately can serve as a supportive
screening tool for healthcare profession.
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369-02-013.
Increased Extracellular Free-Water Fraction Exhibits Spatial Alignment with Neurotransmitter Systems in Parkinson’s Disease
Impact: Free-water alterations in Parkinson’s disease are spatially coupled with serotonergic, dopaminergic, and GABAergic systems, revealing a mechanistic link between microstructural degeneration and neurotransmitter dysfunction that underlies clinical heterogeneity and offers imaging biomarkers for precision treatment.
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© 2026 International Society for Magnetic Resonance in Medicine