Evidence map›Paper›PMID 29536569›Full record

ArticleMagnetic resonance in medicine2018

Characterization and suppression of stripe artifact in velocity-selective magnetization-prepared unenhanced MR angiography.

Taehoon Shin, Qin Qin

Abstract read
In one paragraph

Article in Magnetic resonance in medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

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  12. TMagnetic resonance in medicine · 2022
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  18. Ensuring both velocity and spatial responses robust toMagnetic resonance in medicine · 2021
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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

2 authors.

Taehoon ShinDivision of Mechanical and Biomedical Engineering, Ewha Womans University, Seoul, South Korea.
Qin QinRussell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland.

Funding

Non-Contrast-Enhanced Velocity-Selective MR Angiography at 3T for Cerebrovascular DiseasesR01HL138182 · NHLBI · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI QIN, QIN · 2018 to 2022
$2.0M
NON-CONTRAST-ENHANCED PERIPHERAL MR ANGIOGRAPHYR01HL135500 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI RAJAGOPALAN, SANJAY, WILSON, DAVID LYNN · 2017 to 2020
$1.5M
MRI-based Quantitative Brain Perfusion Mapping for Sickle Cell DiseaseK25HL121192 · NHLBI · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI QIN, QIN · 2014 to 2018
$822k
Early-to-late gadolinium enhancement cardiac MRI in ischemic and non-ischemic cardiomyopathiesR21EB019206 · NIBIB · UNIVERSITY OF MARYLAND BALTIMORE · PI SHIN, TAEHOON · 2015 to 2016
$433k
NHLBI NIH HHS K25 HL121192NHLBI NIH HHS R01 HL135500NHLBI NIH HHS R01 HL138182NIBIB NIH HHS R21 EB019206
6 · The paper itself

Abstract

purposeTo characterize and suppress stripe artifact associated with velocity-selective (VS) magnetization for unenhanced MRA.

methodsExtended phase graph formalism was used to show that the stripe artifact contains multiples of the fundamental frequency that is determined by the area of unipolar VS gradient. Four VS preparation pulses whose excitation profiles are spatially shifted by quarter the fundamental period of the stripes, were applied alternately. For further suppression of the artifact, k-space data at k

resultsWhen the standard VS preparation scheme was used, stripe artifact was shown in all the reconstructed images and appeared as artifactual peaks in k-space that corresponded to the first and second order harmonics of the fundamental frequency. Alternate application of the 4 phase-shifted VS preparation pulses suppressed the stripes, but not completely, as evidenced by residual erroneous peaks in k-space. After the k-space averaging, the stripe artifact was nearly eliminated.

conclusionStripe artifact in VS-MRA consists of multiples of the fundamental frequency and can be effectively suppressed through alternate application of phase-shifted VS preparations along with k-space averaging.

Indexed as

AnimalsArtifactsChickensHumansImage Processing, Computer-AssistedMagnetic Resonance AngiographyModels, BiologicalMusclesPhantoms, ImagingThighnon-contrast-enhanced MR angiographystripe artifactvelocity-selective magnetization preparation

Identifiers

PMID29536569
PMCPMC6107431

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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.