Evidence map›Paper›PMID 33210042›Full record

ArticleBrain circulation

Transcranial Doppler and magnetic resonance angiography assessment of intracranial stenosis: An analysis of screening modalities.

Ashkan Mowla, Banafsheh Shakibajahromi, Rasadul Kabir, Zsolt Garami, John J Volpi

Open access · diamondAbstract read
In one paragraph

Article in Brain circulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 33% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Prevalence and Risk Factors Comparison of Anterior and Posterior Intracranial Arterial Stenosis.Evidence-based complementary and alternative medicine : eCAM · 2022
    Article
  3. Review
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 4 institutions in 2 countries.

Ashkan MowlaDepartment of Neurological Surgery, Division of Endovascular Neurosurgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
Banafsheh ShakibajahromiClinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Rasadul KabirDepartment of Neurology, Houston Methodist Neurological Institute, Houston, TX, USA.
Zsolt GaramiInstitute for Academic Medicine, Research Institute, Weill Cornell Medical College, Houston, TX, USA.
John J VolpiDepartment of Neurology, Houston Methodist Neurological Institute, Houston, TX, USA.
Houston Methodist · USCornell University · USNeurological Surgery · USShiraz University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTime-of-flight (TOF) magnetic resonance angiography (MRA) of the head and transcranial Doppler (TCD) are used to diagnose intracranial stenosis, an important cause of ischemic stroke. We aimed to compare TCD findings with TOF-MRA results in a population of patients with symptoms of cerebrovascular disease in whom both tests were done within a short intervening period of each other.

methodsThis is a retrospective, single-center study. Among adult patients referred for symptoms of cerebrovascular disease in both outpatient and inpatient settings, those who received a TCD with adequate insonation of all intracranial arteries and underwent MRA within 3 months intervals of TCD were included in this study. We evaluated the agreement between the results of these two modalities, and also assessed sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of TCD through receiver-operating characteristic (ROC) curve analysis, while MRA considered as a comparator.

resultsAmong eighty included patients, 720 arteries were examined. An overall significant agreement of 96.5% was observed between TCD and MRA (Kappa = 0.377,

conclusionsThe high NPV of TCD in our study indicates the utility of TCD as a diagnostic test to exclude the presence of intracranial stenosis. This study supports TCD as a convenient, safe, and reproducible imaging modality applicable in the screening of intracranial stenosis, especially to evaluate MCA.

Indexed as

Intracranial stenosismagnetic resonance angiographyscreeningstroketranscranial Doppler sonography

Identifiers

PMID33210042
PMCPMC7646396
OpenAlexW3089678826

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.