Evidence map›Paper›PMID 34083262›Full record

ArticleAJNR. American journal of neuroradiology2021

MTT and Blood-Brain Barrier Disruption within Asymptomatic Vascular WM Lesions.

B E Dewey, X Xu, L Knutsson, A Jog, J L Prince, P B Barker, P C M van Zijl, R Leigh, P Nyquist

Open access · bronzeAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Blood-brain barrier breakdown in brain ischemia: Insights from MRI perfusion imaging.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  5. Article
  6. Pre-operative spinal cord perfusion quantified by DSC MRI as a predictor of post-operative prognosis in patients with cervical spondylotic myelopathy.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

B E DeweyFrom the Department of Electrical and Computer Engineering (B.E.D., J.L.P.), Johns Hopkins University, Baltimore, Maryland.ORCID 0000-0003-4554-5058
X XuF.M. Kirby Research Center for Functional Brain Imaging (B.E.D., X.X., P.B.B., P.C.M.v.Z.), Kennedy Krieger Institute, Baltimore, Maryland.ORCID 0000-0001-8293-3776
L KnutssonDepartment of Radiology and Radiological Science (X.X., L.K., J.L.P., P.B.B., P.C.M.v.Z.), Division of MRI Research, Johns Hopkins University, Baltimore, Maryland.ORCID 0000-0002-4263-113X
A JogAthinoula A. Martinos Center for Biomedical Imaging (A.J.), Harvard University Medical School, Boston Massachusetts.ORCID 0000-0001-6759-2934
J L PrinceFrom the Department of Electrical and Computer Engineering (B.E.D., J.L.P.), Johns Hopkins University, Baltimore, Maryland.ORCID 0000-0002-6553-0876
P B BarkerF.M. Kirby Research Center for Functional Brain Imaging (B.E.D., X.X., P.B.B., P.C.M.v.Z.), Kennedy Krieger Institute, Baltimore, Maryland.ORCID 0000-0002-6410-7793
P C M van ZijlF.M. Kirby Research Center for Functional Brain Imaging (B.E.D., X.X., P.B.B., P.C.M.v.Z.), Kennedy Krieger Institute, Baltimore, Maryland.ORCID 0000-0002-9706-1066
R LeighDepartment of Neurology (R.L., P.N.), Electrical and Computer Engineering (B.E.D., J.L.P.), Johns Hopkins University, Baltimore, Maryland.ORCID 0000-0002-8285-1815
P NyquistDepartment of Neurology (R.L., P.N.), Electrical and Computer Engineering (B.E.D., J.L.P.), Johns Hopkins University, Baltimore, Maryland pnyquis1@jhmi.edu.ORCID 0000-0001-6078-3543
Johns Hopkins University · USKennedy Krieger Institute · USHarvard University · US

Funding

Research Education ComponentP30AG066507 · NIA · JOHNS HOPKINS UNIVERSITY · PI Arnold Bakker · 2020 to 2026
$29.3M
Using MRI to Understand Disease States that Occur at the Interface of the Brain and the Cerebral CirculationZIANS003151 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI LEIGH, RICHARD · 2015 to 2023
$6.8M
Occult Small Vessel Cerebrovascular Disease in High Risk FamiliesR01NS062059 · NINDS · JOHNS HOPKINS UNIVERSITY · PI NYQUIST, PAUL ALAN · 2009 to 2013
$3.0M
Vascular Contributors to Blood Brain Barrier Permeability and Regional White Matter Hyperintensity Progression in Young Asymptomatic PeopleR01NS128135 · NINDS · JOHNS HOPKINS UNIVERSITY · PI Paul Alan Nyquist · 2025 to 2026
$1.5M
Development and Translation of D-glucose as an MRI Contrast Agent for Multiple SclerosisR00EB026312 · NIBIB · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI XU, XIANG · 2020 to 2022
$747k
Development and Translation of D-glucose as an MRI Contrast Agent for Multiple SclerosisK99EB026312 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI XU, XIANG · 2018 to 2020
$242k
NIA NIH HHS P30 AG066507NIBIB NIH HHS K99 EB026312NIBIB NIH HHS R00 EB026312NINDS NIH HHS R01 NS062059NINDS NIH HHS R01 NS128135
6 · The paper itself

Abstract

background and purposeWhite matter lesions of presumed ischemic origin are associated with progressive cognitive impairment and impaired BBB function. Studying the longitudinal effects of white matter lesion biomarkers that measure changes in perfusion and BBB patency within white matter lesions is required for long-term studies of lesion progression. We studied perfusion and BBB disruption within white matter lesions in asymptomatic subjects. MATERIALS AND

methodsAnatomic imaging was followed by consecutive dynamic contrast-enhanced and DSC imaging. White matter lesions in 21 asymptomatic individuals were determined using a Subject-Specific Sparse Dictionary Learning algorithm with manual correction. Perfusion-related parameters including CBF, MTT, the BBB leakage parameter, and volume transfer constant were determined.

resultsMTT was significantly prolonged (7.88 [SD, 1.03] seconds) within white matter lesions compared with normal-appearing white (7.29 [SD, 1.14] seconds) and gray matter (6.67 [SD, 1.35] seconds). The volume transfer constant, measured by dynamic contrast-enhanced imaging, was significantly elevated (0.013 [SD, 0.017] minutes

conclusionsA dual-contrast-injection MR imaging protocol combined with a 3D automated segmentation analysis pipeline was used to assess BBB disruption in white matter lesions on the basis of quantitative perfusion measures including the volume transfer constant (dynamic contrast-enhanced imaging), the BBB leakage parameter (DSC), and MTT (DSC). This protocol was able to detect early pathologic changes in otherwise healthy individuals.

Indexed as

Blood-Brain BarrierWhite MatterCerebral CortexGray MatterHumansMagnetic Resonance Imaging

Identifiers

PMID34083262
PMCPMC8367617
OpenAlexW3164494136

What OpenQuestion holds

Textmetadata
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.