Evidence map›Paper›PMID 17213429›Full record

ArticleAJNR. American journal of neuroradiology2007

Proton spectroscopy and imaging at 3T in ataxia-telangiectasia.

L I Wallis, P D Griffiths, S J Ritchie, C A J Romanowski, G Darwent, I D Wilkinson

Open access · greenAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
0.6field-weighted citation impact, top 42% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Nervous system (NS) Tumors in Cancer Predisposition Syndromes.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  6. Article
  7. Ataxia telangiectasia: a review.Orphanet journal of rare diseases · 2016
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Cerebral abnormalities in adults with ataxia-telangiectasia.AJNR. American journal of neuroradiology · 2014
    Article
  14. Review
  15. 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

6 authors at 1 institution in 1 country.

L I WallisAcademic Unit of Radiology, The University of Sheffield, Sheffield, United Kingdom. l.wallis@sheffield.ac.uk
P D Griffiths
S J Ritchie
C A J Romanowski
G Darwent
I D Wilkinson
University of Sheffield · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeAtaxia-telangiectasia (A-T) is an autosomal recessive disorder with characteristic neurodegeneration of the cerebellum. We used MR spectroscopy to test the hypothesis that cerebellar metabolism in A-T patients would be abnormal relative to healthy controls.

methodsTwelve adults with A-T and 12 healthy control subjects underwent MR imaging and long-echo time (1)H-MR spectroscopy at 3T. Voxels were acquired in the region of the dentate nucleus of the cerebellum and in parietooccipital white matter, and ratios for N-acetylaspartate (NAA), choline (Cho), and creatine (Cr) were calculated.

resultsAll of the A-T patients showed marked cerebellar atrophy of the vermis and hemispheres. Two patients showed multiple small foci of hypointensity on T2*-weighted images throughout their brain suggestive of capillary telangiectasia. A further 2 patients had single low-signal-intensity foci. One patient had a tumor, thought to be meningioma radiologically, that was not suspected clinically. No group differences were found in the cerebral spectra, but analysis of the cerebellum revealed significantly lower NAA/Cho and higher Cho/Cr ratios in the A-T patients compared with the controls. There was no difference between groups for the NAA/Cr ratio.

conclusionThe findings suggest increased Cho signal intensity in the cerebellum of adult A-T patients. If this finding is shown through the course of the disease, it may assist in the differentiation of early A-T from other forms of ataxia and provide a marker for monitoring treatment efficacy.

Indexed as

Magnetic Resonance ImagingMagnetic Resonance SpectroscopyAdultAspartic AcidAtaxia TelangiectasiaCerebellumCholineCreatineEnergy MetabolismFemaleHumansMaleMiddle AgedReference ValuesAspartic AcidCholineCreatineN-acetylaspartate

Identifiers

PMID17213429
PMCPMC8134102
OpenAlexW1909693001

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.