Evidence map›Paper›PMID 27536710›Full record

ArticleEuropean journal of radiology open2016

Accuracy of unenhanced magnetic resonance angiography for the assessment of renal artery stenosis.

Carmen Sebastià, Alejandro D Sotomayor, Blanca Paño, Rafael Salvador, Marta Burrel, Albert Botey, Carlos Nicolau

Open access · goldAbstract read
In one paragraph

Article in European journal of radiology open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

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  11. Noncontrast MR angiography: An update.Journal of magnetic resonance imaging : JMRI · 2019
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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 1 institution in 1 country.

Carmen SebastiàCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Alejandro D SotomayorCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Blanca PañoCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Rafael SalvadorCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Marta BurrelCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Albert BoteyCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Carlos NicolauCDI, Department of Radiology and Nephrology, Hospital Clinic of Barcelona, Spain.
Hospital Clínic de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the accuracy of unenhanced magnetic resonance angiography (U-MRA) using balanced steady-state free precession (SSFP) sequences with inversion recovery (IR) pulses for the evaluation of renal artery stenosis. MATERIALS AND

methodsU-MRA was performed in 24 patients with suspected main renal artery stenosis. Two radiologists evaluated the quality of the imaging studies and the ability of U-MRA to identify hemodynamically significant main renal artery stenosis (RAS) defined as a stenosis ≥50% when compared to gold standard tests: contrast-enhanced magnetic resonance angiography (CE-MRA) (18 patients) or digital subtraction arteriography (DSA) (6 patients).

resultsA total of 44 main renal arteries were evaluated. Of them, 32 renal arteries could be assessed with U-MRA. When CE-MRA or DSA was used as the reference standard, nine renal arteries had hemodynamically significant RAS. U-MRA correctly identified eight out of nine arteries as having ≥50% RAS, and correctly identified 22 out of 23 arteries as not having significant RAS, with a sensitivity of 88.8%, a specificity of 95.65%, positive and negative predictive value of 88.8% and 95.65%, respectively, and an accuracy of 93.75%. Renal artery fibromuscular dysplasia (FMD) was observed in the two misclassified arteries.

conclusionU-MRA is a reliable diagnostic method to depict normal and stenotic main renal arteries. U-MRA can be used as an alternative to contrast-enhanced magnetic resonance angiography or computer tomography angiography in patients with renal insufficiency unless FMD is suspected.

Indexed as

Contrast-enhanced magnetic resonance angiography (CE-MRA)Fibromuscular dysplasia (FMD)Hypertension (HTA)Renal artery stenosis (RAS)Unenhanced magnetic resonance angiography (U-MRA)

Identifiers

PMID27536710
PMCPMC4975703
OpenAlexW2501645747

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.