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  1. Artikel ; Online: Diagnosis of multiple sclerosis through the lens of ultra-high-field MRI.

    Sati, Pascal

    Journal of magnetic resonance (San Diego, Calif. : 1997)

    2018  Band 291, Seite(n) 101–109

    Abstract: The long-standing relationship between ultra-high-field (7 T) MRI and multiple sclerosis (MS) has brought new insights to our understanding of lesion evolution and its associated pathology. With the recent FDA approval of a commercially available scanner, ...

    Abstract The long-standing relationship between ultra-high-field (7 T) MRI and multiple sclerosis (MS) has brought new insights to our understanding of lesion evolution and its associated pathology. With the recent FDA approval of a commercially available scanner, 7 T MRI is finally entering the clinic with great expectations about its potential added value. By looking through the prism of MS diagnosis, this perspective article discusses current limitations and prospects of 7 T MRI techniques relevant to helping clinicians diagnose patients encountered in daily practice.
    Mesh-Begriff(e) Cerebral Cortex/diagnostic imaging ; Electromagnetic Fields ; Humans ; Magnetic Resonance Imaging/methods ; Multiple Sclerosis/diagnostic imaging ; Reproducibility of Results
    Sprache Englisch
    Erscheinungsdatum 2018-04-26
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, N.I.H., Intramural ; Review
    ZDB-ID 1469665-4
    ISSN 1096-0856 ; 1557-8968 ; 1090-7807 ; 0022-2364
    ISSN (online) 1096-0856 ; 1557-8968
    ISSN 1090-7807 ; 0022-2364
    DOI 10.1016/j.jmr.2018.01.022
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: The Brain's First "Traffic Map" through Unified Structural and Functional Connectivity (USFC) Modeling.

    Silemek, Arzu Has / Chen, Haitao / Sati, Pascal / Gao, Wei

    Research square

    2024  

    Abstract: The brain's white matter connections are thought to provide the structural basis for its functional connections between distant brain regions but how our brain selects the best structural routes for effective functional communications remains poorly ... ...

    Abstract The brain's white matter connections are thought to provide the structural basis for its functional connections between distant brain regions but how our brain selects the best structural routes for effective functional communications remains poorly understood. In this study, we propose a Unified Structural and Functional Connectivity (USFC) model and use an "economical assumption" to create the brain's first "traffic map" reflecting how frequently each structural connection segment of the brain is used to achieve the global functional communication system. The resulting USFC map highlights regions in the subcortical, default-mode, and salience networks as the most heavily traversed nodes and a midline frontal-caudate-thalamus-posterior cingulate-visual cortex corridor as the backbone of the whole brain connectivity system. Our results further revealed a striking negative association between structural and functional connectivity strengths in routes supporting negative functional connections as well as much higher efficiency metrics in the USFC connectome when compared to structural and functional ones alone. Overall, the proposed USFC model opens up a new window for effective brain connectome modeling and provides a considerable leap forward in brain mapping efforts for a better understanding of the brain's fundamental communication mechanisms.
    Sprache Englisch
    Erscheinungsdatum 2024-04-19
    Erscheinungsland United States
    Dokumenttyp Preprint
    DOI 10.21203/rs.3.rs-4184305/v1
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Incorporating the Central Vein Sign Into the Diagnostic Criteria for Multiple Sclerosis.

    Ontaneda, Daniel / Cohen, Jeffrey A / Sati, Pascal

    JAMA neurology

    2023  Band 80, Heft 7, Seite(n) 657–658

    Mesh-Begriff(e) Humans ; Multiple Sclerosis/diagnostic imaging ; Veins ; Magnetic Resonance Imaging
    Sprache Englisch
    Erscheinungsdatum 2023-04-17
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2702023-X
    ISSN 2168-6157 ; 2168-6149
    ISSN (online) 2168-6157
    ISSN 2168-6149
    DOI 10.1001/jamaneurol.2023.0717
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: 7 Tesla MRI will soon be helpful to guide clinical practice in multiple sclerosis centers - Commentary.

    Sati, Pascal / Reich, Daniel S

    Multiple sclerosis (Houndmills, Basingstoke, England)

    2021  Band 27, Heft 3, Seite(n) 364–365

    Mesh-Begriff(e) Brain ; Humans ; Magnetic Resonance Imaging ; Multiple Sclerosis/diagnostic imaging
    Sprache Englisch
    Erscheinungsdatum 2021-01-06
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, N.I.H., Intramural ; Comment
    ZDB-ID 1290669-4
    ISSN 1477-0970 ; 1352-4585
    ISSN (online) 1477-0970
    ISSN 1352-4585
    DOI 10.1177/1352458520981738
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Detection of central vein should be part of MS diagnostic criteria - Commentary.

    Oh, Jiwon / Sati, Pascal

    Multiple sclerosis (Houndmills, Basingstoke, England)

    2020  Band 26, Heft 4, Seite(n) 409–410

    Mesh-Begriff(e) Magnetic Resonance Imaging ; Veins
    Sprache Englisch
    Erscheinungsdatum 2020-03-03
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 1290669-4
    ISSN 1477-0970 ; 1352-4585
    ISSN (online) 1477-0970
    ISSN 1352-4585
    DOI 10.1177/1352458520905759
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Rapid MR Susceptibility Imaging of the Brain Using Segmented 3D Echo-Planar Imaging3 (3D EPI) and its Clinical Applications

    Sati, Pascal

    Magnetom flash

    2017  Band -, Heft 2 = Nr. 68 ISMRM Ed., Seite(n) 26

    Sprache Englisch
    Dokumenttyp Artikel
    ZDB-ID 2465783-9
    Datenquelle Current Contents Medizin

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  7. Artikel ; Online: From pathology to MRI and back: Clinically relevant biomarkers of multiple sclerosis lesions.

    Kolb, Hadar / Al-Louzi, Omar / Beck, Erin S / Sati, Pascal / Absinta, Martina / Reich, Daniel S

    NeuroImage. Clinical

    2022  Band 36, Seite(n) 103194

    Abstract: Focal lesions in both white and gray matter are characteristic of multiple sclerosis (MS). Histopathological studies have helped define the main underlying pathological processes involved in lesion formation and evolution, serving as a gold standard for ... ...

    Abstract Focal lesions in both white and gray matter are characteristic of multiple sclerosis (MS). Histopathological studies have helped define the main underlying pathological processes involved in lesion formation and evolution, serving as a gold standard for many years. However, histopathology suffers from an intrinsic bias resulting from over-reliance on tissue samples from late stages of the disease or atypical cases and is inadequate for routine patient assessment. Pathological-radiological correlative studies have established advanced MRI's sensitivity to several relevant MS-pathological substrates and its practicality for assessing dynamic changes and following lesions over time. This review focuses on novel imaging techniques that serve as biomarkers of critical pathological substrates of MS lesions: the central vein, chronic inflammation, remyelination and repair, and cortical lesions. For each pathological process, we address the correlative value of MRI to MS pathology, its contribution in elucidating MS pathology in vivo, and the clinical utility of the imaging biomarker.
    Sprache Englisch
    Erscheinungsdatum 2022-09-14
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 2701571-3
    ISSN 2213-1582 ; 2213-1582
    ISSN (online) 2213-1582
    ISSN 2213-1582
    DOI 10.1016/j.nicl.2022.103194
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Choroid plexus volume differentiates MS from its mimics.

    Levit, Elle / Ren, Zheng / Gonzenbach, Virgilio / Azevedo, Christina J / Calabresi, Peter A / Cree, Bruce Ac / Freeman, Leorah / Longbrake, Erin E / Oh, Jiwon / Schindler, Matthew K / Sicotte, Nancy L / Reich, Daniel S / Ontaneda, Daniel / Sati, Pascal / Cao, Quy / Shinohara, Russell T / Solomon, Andrew J

    Multiple sclerosis (Houndmills, Basingstoke, England)

    2024  , Seite(n) 13524585241238094

    Abstract: This study aimed to determine whether choroid plexus volume (CPV) could differentiate multiple sclerosis (MS) from its mimics. A secondary analysis of two previously enrolled studies, 50 participants with MS and 64 with alternative diagnoses were ... ...

    Abstract This study aimed to determine whether choroid plexus volume (CPV) could differentiate multiple sclerosis (MS) from its mimics. A secondary analysis of two previously enrolled studies, 50 participants with MS and 64 with alternative diagnoses were included. CPV was automatically segmented from 3T magnetic resonance imaging (MRI), followed by manual review to remove misclassified tissue. Mean normalized choroid plexus volume (nCPV) to intracranial volume demonstrated relatively high specificity for MS participants in each cohort (0.80 and 0.76) with an area under the receiver-operator characteristic curve of 0.71 (95% confidence interval (CI) = 0.55-0.87) and 0.65 (95% CI = 0.52-0.77). In this preliminary study, nCPV differentiated MS from its mimics.
    Sprache Englisch
    Erscheinungsdatum 2024-03-13
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1290669-4
    ISSN 1477-0970 ; 1352-4585
    ISSN (online) 1477-0970
    ISSN 1352-4585
    DOI 10.1177/13524585241238094
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel: A 4D transcriptomic map for the evolution of multiple sclerosis-like lesions in the marmoset brain.

    Lin, Jing-Ping / Brake, Alexis / Donadieu, Maxime / Lee, Amanda / Kawaguchi, Riki / Sati, Pascal / Geschwind, Daniel H / Jacobson, Steven / Schafer, Dorothy P / Reich, Daniel S

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Single-time-point histopathological studies on postmortem multiple sclerosis (MS) tissue fail to capture lesion evolution dynamics, posing challenges for therapy development targeting development and repair of focal inflammatory demyelination. To close ... ...

    Abstract Single-time-point histopathological studies on postmortem multiple sclerosis (MS) tissue fail to capture lesion evolution dynamics, posing challenges for therapy development targeting development and repair of focal inflammatory demyelination. To close this gap, we studied experimental autoimmune encephalitis (EAE) in the common marmoset, the most faithful animal model of these processes. Using MRI-informed RNA profiling, we analyzed ~600,000 single-nucleus and ~55,000 spatial transcriptomes, comparing them against EAE inoculation status, longitudinal radiological signals, and histopathological features. We categorized 5 groups of microenvironments pertinent to neural function, immune and glial responses, tissue destruction and repair, and regulatory network at brain borders. Exploring perilesional microenvironment diversity, we uncovered central roles of EAE-associated astrocytes, oligodendrocyte precursor cells, and ependyma in lesion formation and resolution. We pinpointed imaging and molecular features capturing the pathological trajectory of WM, offering potential for assessing treatment outcomes using marmoset as a platform.
    Sprache Englisch
    Erscheinungsdatum 2023-09-27
    Erscheinungsland United States
    Dokumenttyp Preprint
    DOI 10.1101/2023.09.25.559371
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Insights from Ultrahigh Field Imaging in Multiple Sclerosis.

    Schindler, Matthew K / Sati, Pascal / Reich, Daniel S

    Neuroimaging clinics of North America

    2017  Band 27, Heft 2, Seite(n) 357–366

    Abstract: Ultrahigh-field (≥7 T) magnetic resonance (MR) imaging is being used at many leading academic medical centers to study neurologic disorders. The improved spatial resolution and anatomic detail are due to the increase in signal-to-noise and contrast-to- ... ...

    Abstract Ultrahigh-field (≥7 T) magnetic resonance (MR) imaging is being used at many leading academic medical centers to study neurologic disorders. The improved spatial resolution and anatomic detail are due to the increase in signal-to-noise and contrast-to-noise ratio at higher magnetic field strengths. Ultrahigh-field MR imaging improves multiple sclerosis (MS) lesion detection, with particular sensitivity to detect cortical lesions. The increase in magnetic susceptibility effects inherent to ultrahigh field can be used to detect pathologic features of MS lesions, including a central vein, potentially useful for diagnostic considerations, and heterogeneity among MS lesions, potentially useful in determining lesion outcomes.
    Mesh-Begriff(e) Brain/pathology ; Brain Mapping ; Humans ; Imaging, Three-Dimensional ; Magnetic Resonance Imaging/methods ; Multiple Sclerosis/pathology
    Sprache Englisch
    Erscheinungsdatum 2017-01-26
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review
    ZDB-ID 1314594-0
    ISSN 1557-9867 ; 1052-5149
    ISSN (online) 1557-9867
    ISSN 1052-5149
    DOI 10.1016/j.nic.2016.12.006
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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