Evidence map›Paper›PMID 27173364›Full record

SynthesisAJNR. American journal of neuroradiology2016

MR Imaging in Spinocerebellar Ataxias: A Systematic Review.

A Klaes, E Reckziegel, M C Franca, T J R Rezende, L M Vedolin, L B Jardim, J A Saute

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in AJNR. American journal of neuroradiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.5field-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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. A Scoping Review of POLG-Related Cerebellar Ataxia: Insights and Clinical Perspectives.Tremor and other hyperkinetic movements (New York, N.Y.) · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Pontocerebellar atrophy is the hallmark neuroradiological finding in late-onset Tay-Sachs disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Regional Brain and Spinal Cord Volume Loss in Spinocerebellar Ataxia Type 3.Movement disorders : official journal of the Movement Disorder Society · 2021
    Article
  20. 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

7 authors at 2 institutions in 2 countries.

A KlaesFrom the Departments of Radiology (A.K., L.M.V.).ORCID 0000-0003-1345-3810
E ReckziegelMedical Genetics Services (E.R., L.B.J., J.A.M.S.), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.ORCID 0000-0002-3065-3550
M C FrancaDepartments of Neurology (M.C.F., T.J.R.R.).ORCID 0000-0003-0898-2419
T J R RezendeDepartments of Neurology (M.C.F., T.J.R.R.) Cosmic Rays and Chronology (T.J.R.R.), Universidade Estadual de Campinas, Campinas, Brazil.ORCID 0000-0003-0765-4587
L M VedolinFrom the Departments of Radiology (A.K., L.M.V.) Department of Internal Medicine (L.M.V., L.B.J.).ORCID 0000-0002-1653-5582
L B JardimMedical Genetics Services (E.R., L.B.J., J.A.M.S.), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil Department of Internal Medicine (L.M.V., L.B.J.) Postgraduate Program in Medicine: Medical Sciences (L.B.J.), Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.ORCID 0000-0001-6907-5068
J A SauteMedical Genetics Services (E.R., L.B.J., J.A.M.S.), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil jsaute@hcpa.edu.br.ORCID 0000-0003-1141-6573
Hospital de Clínicas de Porto Alegre · BRNeurology, Inc · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePolyglutamine expansion spinocerebellar ataxias are autosomal dominant slowly progressive neurodegenerative diseases with no current treatment. MR imaging is the best-studied surrogate biomarker candidate for polyglutamine expansion spinocerebellar ataxias, though with conflicting results. We aimed to review quantitative central nervous system MR imaging technique findings in patients with polyglutamine expansion spinocerebellar ataxias and correlations with well-established clinical and molecular disease markers. MATERIALS AND

methodsWe searched MEDLINE, LILACS, and Cochrane data bases of clinical trials between January 1995 and January 2016, for quantitative MR imaging volumetric approaches, MR spectroscopy, diffusion tensor imaging, or other quantitative techniques, comparing patients with polyglutamine expansion spinocerebellar ataxias (SCAs) with controls. Pertinent details for each study regarding participants, imaging methods, and results were extracted.

resultsAfter reviewing the 706 results, 18 studies were suitable for inclusion: 2 studies in SCA1, 1 in SCA2, 15 in SCA3, 1 in SCA7, 1 in SCA1 and SCA6 presymptomatic carriers, and none in SCA17 and dentatorubropallidoluysian atrophy. Cerebellar hemispheres and vermis, whole brain stem, midbrain, pons, medulla oblongata, cervical spine, striatum, and thalamus presented significant atrophy in SCA3. The caudate, putamen and whole brain stem presented similar sensitivity to change compared with ataxia scales after 2 years of follow-up in a single prospective study in SCA3. MR spectroscopy and DTI showed abnormalities only in cross-sectional studies in SCA3. Results from single studies in other polyglutamine expansion spinocerebellar ataxias should be replicated in different cohorts.

conclusionsAdditional cross-sectional and prospective volumetric analysis, MR spectroscopy, and DTI studies are necessary in polyglutamine expansion spinocerebellar ataxias. The properties of preclinical disease biomarkers (presymptomatic) of MR imaging should be targeted in future studies.

Indexed as

AdultFemaleHumansMaleNeuroimagingSpinocerebellar Ataxias

Identifiers

PMID27173364
PMCPMC7960281
OpenAlexW2380688641

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.