Evidence map›Paper›PMID 29326651›Full record

ArticleFrontiers in neurology2017

Comparison of 3- and 20-Gradient Direction Diffusion-Weighted Imaging in a Clinical Subacute Cohort of Patients with Transient Ischemic Attack: Application of Standard Vendor Protocols for Lesion Detection and Final Infarct Size Projection.

Inger Havsteen, Christian Ovesen, Lasse Willer, Janus Damm Nybing, Karen Ægidius, Jacob Marstrand, Per Meden, Sverre Rosenbaum, Marie Norsker Folke, Hanne Christensen and 1 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01531946 (Acute MRI-techniques for the Detection of Ischemic Lesions After Transient Ischemic Attack), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 35% 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.

NCT01531946 completednot on this map

Acute MRI-techniques for the Detection of Ischemic Lesions After Transient Ischemic Attack

TypeobservationalSponsorBispebjerg HospitalRan2012 to 2017Enrolled199ConditionsIschemic Attack, TransientArmsMRI Scan
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. 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

11 authors at 2 institutions in 1 country.

Inger HavsteenDepartment of Radiology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Christian OvesenDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Lasse WillerDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Janus Damm NybingDepartment of Radiology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Karen ÆgidiusDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Jacob MarstrandDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Per MedenDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Sverre RosenbaumDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Marie Norsker FolkeDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Hanne ChristensenDepartment of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Anders ChristensenDepartment of Radiology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Bispebjerg Hospital · DKCopenhagen University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveDiffusion tensor imaging may aid brain ischemia assessment but is more time consuming than conventional diffusion-weighted imaging (DWI). We compared 3-gradient direction DWI (3DWI) and 20-gradient direction DWI (20DWI) standard vendor protocols in a hospital-based prospective cohort of patients with transient ischemic attack (TIA) for lesion detection, lesion brightness, predictability of persisting infarction, and final infarct size.

methodsWe performed 3T-magnetic resonance imaging including diffusion and T2-fluid attenuated inversion recovery (FLAIR) within 72 h and 8 weeks after ictus. Qualitative lesion brightness was assessed by visual inspection. We measured lesion area and brightness with manual regions of interest and compared with homologous normal tissue.

results117 patients with clinical TIA showed 78 DWI lesions. 2 lesions showed only on 3DWI. No lesions were uniquely 20DWI positive. 3DWI was visually brightest for 34 lesions. 12 lesions were brightest on 20DWI. The median 3DWI lesion area was larger for lesions equally bright, or brightest on 20DWI [median (IQR) 39 (18-95) versus 18 (10-34) mm

conclusion3DWI detected more lesions and had higher relative lesion SI than 20DWI. 20DWI appeared blurred and did not add information. CLINICAL

trial registrationhttp://www.clinicaltrials.gov. Unique Identifier NCT01531946.

Indexed as

diffusion tensor imagingdiffusion-weighted imaginginfarctionmagnetic resonance imagingtransient ischemic attack

Identifiers

PMID29326651
PMCPMC5741597
OpenAlexW2771882602

What OpenQuestion holds

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Registered trials

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.