Evidence map›Paper›PMID 22555580›Full record

ArticleAJNR. American journal of neuroradiology2012

Hemodynamic alterations in vertebrobasilar large artery disease assessed by arterial spin-labeling MR imaging.

B J Macintosh, L Marquardt, U G Schulz, P Jezzard, P M Rothwell

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Trial
  2. Review
  3. Perfusion-MRI is a Poor Indicator of Hemodynamic Compromise in Vertebrobasilar Disease in the VERiTAS Study.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2021
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Cerebral blood flow quantification using vessel-encoded arterial spin labeling.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2013
    Article
  14. Diagnosis and management of vertebrobasilar insufficiency.Current treatment options in cardiovascular medicine · 2013
    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

5 authors at 2 institutions in 2 countries.

B J MacintoshNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, England. bmac@sri.utoronto.ca
L Marquardt
U G Schulz
P Jezzard
P M Rothwell
University of Oxford · GBNuffield Orthopaedic Centre · GB

Funding

Medical Research Council G0701128Medical Research Council G0802179Wellcome Trust 095626
6 · The paper itself

Abstract

background and purposeVB artery stenosis is associated with a high risk of recurrent ischemic events, and knowledge about the hemodynamic relevance of VB stenosis is important for clinical decision making. In this study, multiple inflow pulsed ASL MR imaging was assessed for its ability to measure CBF and ATT in patients with VB disease. MATERIALS AND

methodsASL was performed on a 3T MR imaging scanner in 41 participants. Twenty-one patients had a history of ischemic events in the VB circulation (14 men, 7 women, age 66 ± 11 years). Clinical data and CE-MRA were used to classify VB disease severity. Twenty age-matched adults were controls. Group and within-VB analyses were performed. Mean CBF and ATT values in the ROIs were adjusted by excluding voxels that did not produce a reliable ASL estimate.

resultsCBF was reduced (P < .003) in patients compared with controls, which was significant after excluding voxels with a poor fit. Differences in ATT between patients and controls were not significant after voxel correction. There was a strong correlation between CBF and ATT among patients. Finally, ATT was significantly correlated with VB disease severity (P = .026).

conclusionsMultiple inflow ASL distinguished patients with VB disease from age matched-controls. VB disease rating was associated with prolonged ATT downstream. ASL may have diagnostic potential among patients in whom risk of intervention is high.

Indexed as

AlgorithmsCerebrovascular CirculationAgedBlood Flow VelocityFemaleHumansImage Interpretation, Computer-AssistedMagnetic Resonance AngiographyMaleMiddle AgedReproducibility of ResultsSensitivity and SpecificitySpin LabelsVertebrobasilar InsufficiencySpin Labels

Identifiers

PMID22555580
PMCPMC7964632
OpenAlexW2074446072

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.