Evidence map›Paper›PMID 33710456›Full record

ArticleJournal of neurology2021

Diffusion tensor imaging analysis in three progressive supranuclear palsy variants.

Jennifer L Whitwell, Nirubol Tosakulwong, Heather M Clark, Farwa Ali, Hugo Botha, Stephen D Weigand, Irene Sintini, Mary M Machulda, Christopher G Schwarz, Robert I Reid and 3 more

Open access · greenAbstract read
In one paragraph

Article in Journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Differences in neuropsychological performance across clinical variants of progressive supranuclear palsy.Journal of the International Neuropsychological Society : JINS · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Brainstem Biomarkers of Clinical Variant and Pathology in Progressive Supranuclear Palsy.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  13. Article
  14. Review
  15. Gray and White Matter Correlates of Dysphagia in Progressive Supranuclear Palsy.Movement disorders : official journal of the Movement Disorder Society · 2021
    Article
  16. Article
  17. Article
  18. Brain Microstructure Interrogation by Diffusion Tensor and Kurtosis Imaging in Progressive Supranuclear Palsy Subtypes.Journal of neuroimaging : official journal of the American Society of Neuroimaging
    Article
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

13 authors at 3 institutions in 1 country.

Jennifer L WhitwellDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Whitwell.jennifer@mayo.edu.
Nirubol TosakulwongDepartment of Health Sciences Research (Biostatistics), Mayo Clinic, Rochester, MN, USA.
Heather M ClarkDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Farwa AliDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Hugo BothaDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Stephen D WeigandDepartment of Health Sciences Research (Biostatistics), Mayo Clinic, Rochester, MN, USA.
Irene SintiniDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Mary M MachuldaDepartment of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.
Christopher G SchwarzDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Robert I ReidDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Clifford R JackDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
J Eric AhlskogDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Keith A JosephsDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic in Arizona · USMayo Clinic in Florida · USMayo Clinic · US

Funding

Longitudinal multi-modality imaging in progressive apraxia of speech (Diversity Supplement)R01DC012519 · NIDCD · MAYO CLINIC ROCHESTER · PI Jennifer Louise Whitwell · 2013 to 2026
$7.2M
Longitudinal Multi-modal Imaging in Progressive Supranuclear Palsy SyndromesR01NS089757 · NINDS · MAYO CLINIC ROCHESTER · PI JOSEPHS, KEITH A, WHITWELL, JENNIFER LOUISE · 2015 to 2024
$5.6M
The neurobiology of two distinct types of progressive apraxia of speechR01DC014942 · NIDCD · MAYO CLINIC ROCHESTER · PI Keith A Josephs, Rene Lynn Utianski · 2017 to 2026
$4.9M
NIDCD NIH HHS R01 DC012519NIDCD NIH HHS R01 DC014942NIH HHS R01-DC12519NIH HHS R01-DC14942NIH HHS R01-NS89757NINDS NIH HHS R01 NS089757
6 · The paper itself

Abstract

backgroundClinical variants of progressive supranuclear palsy (PSP) include the classic Richardson's syndrome (PSP-RS), as well as cortical presentations such as PSP-speech/language (PSP-SL) and subcortical presentations such as PSP-parkinsonism (PSP-P). Patterns of white matter tract degeneration underlying these variants, and the degree to which white matter patterns could differentiate these variants, is unclear.

methodsForty-nine PSP patients (28 PSP-RS, 12 PSP-P, and 9 PSP-SL) were recruited by the Neurodegenerative Research Group and underwent diffusion tensor imaging. Regional diffusion tensor imaging metrics were compared across PSP variants using Bayesian linear mixed-effects models, with inter-variant differentiation assessed using the area under the receiver operator characteristic curve (AUROC).

resultsAll three variants showed degeneration of the body of the corpus callosum, posterior thalamic radiation, superior cerebellar peduncle, internal and external capsule, and superior fronto-occipital fasciculus. PSP-RS showed greater degeneration of superior cerebellar peduncle compared to PSP-P and PSP-SL, whereas PSP-SL showed greater degeneration of body and genu of the corpus callosum, internal capsule, external capsule, and superior longitudinal fasciculus compared to the other variants. Fractional anisotropy in body of the corpus callosum provided excellent differentiation of PSP-SL from both PSP-P and PSP-RS (AUROC = 0.91 and 0.92, respectively). Moderate differentiation of PSP-RS and PSP-P was achieved with fractional anisotropy in superior fronto-occipital fasciculus (AUROC = 0.68) and mean diffusivity in the superior cerebellar peduncle (AUROC = 0.65).

conclusionIn this pilot study, patterns of white matter tract degeneration differed across PSP-RS, PSP-SL, and PSP-P, with the body of the corpus callosum showing some utility in the differentiation of PSP-SL from the other two variants.

Indexed as

Parkinson DiseaseSupranuclear Palsy, ProgressiveBayes TheoremDiffusion Tensor ImagingHumansPilot ProjectsDiffusion tensor imagingPSP with predominant parkinsonismPSP with speech/languageRichardson syndromeWhite matter

Identifiers

PMID33710456
PMCPMC8363518
OpenAlexW3134363038

What OpenQuestion holds

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Registered trials

None linked

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.