Evidence map›Paper›PMID 31400035›Full record

ArticleMagnetic resonance in medicine2020

Systematic assessment of multi-echo dynamic susceptibility contrast MRI using a digital reference object.

Ashley M Stokes, Natenael B Semmineh, Ashley Nespodzany, Laura C Bell, C Chad Quarles

Open access · greenAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

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  9. Evaluation of single bolus, dual-echo dynamic susceptibility contrast MRI protocols in brain tumor patients.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    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 1 institution in 1 country.

Ashley M StokesDivision of Neuroimaging Research, Barrow Neurological Institute, Phoenix, Arizona.ORCID 0000-0003-1137-5003
Natenael B SemminehDivision of Neuroimaging Research, Barrow Neurological Institute, Phoenix, Arizona.
Ashley NespodzanyDivision of Neuroimaging Research, Barrow Neurological Institute, Phoenix, Arizona.
Laura C BellDivision of Neuroimaging Research, Barrow Neurological Institute, Phoenix, Arizona.
C Chad QuarlesDivision of Neuroimaging Research, Barrow Neurological Institute, Phoenix, Arizona.
Barrow Neurological Institute · US

Funding

Establishing the Validity of Brain Tumor Perfusion ImagingR01CA213158 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Christopher Chad Quarles · 2017 to 2026
$2.9M
NCI NIH HHS R01 CA213158
6 · The paper itself

Abstract

purposeBrain tumor dynamic susceptibility contrast (DSC) MRI is adversely impacted by T

methodsUsing a population-based DSC-MRI digital reference object (DRO), we assessed the influence of preload dosing (no preload and full dose preload), field strength (1.5 and 3T), pulse sequence parameters (echo time, repetition time, and flip angle), and leakage correction on relative cerebral blood volume (rCBV) and flow (rCBF) accuracy. We also compared multi-echo DSC-MRI protocols with standard single-echo protocols.

resultsMulti-echo DSC-MRI is highly consistent across all protocols, and multi-echo rCBV (with or without use of a preload dose) had higher accuracy than single-echo rCBV. Regression analysis showed that choice of repetition time and flip angle had minimal impact on multi-echo rCBV and rCBV, indicating the potential for significant flexibility in acquisition parameters. The echo time combination had minimal impact on rCBV, though longer echo times should be avoided, particularly at higher field strengths. Leakage correction improved rCBV accuracy in all cases. Multi-echo rCBF was less biased than single-echo rCBF, although rCBF accuracy was reduced overall relative to rCBV.

conclusionsMulti-echo acquisitions were more robust than single-echo, essentially decoupling both repetition time and flip angle from rCBV accuracy. Multi-echo acquisitions obviate the need for preload dosing, although leakage correction to remove residual

Indexed as

Cerebral Blood VolumeMagnetic Resonance ImagingNeuroimagingAlgorithmsBrain NeoplasmsCerebrovascular CirculationContrast MediaGlioblastomaHumansImage Interpretation, Computer-AssistedImage Processing, Computer-AssistedPerfusionReference ValuesReproducibility of ResultsSoftwareWhite MatterContrast Mediabrain tumor hemodynamicsdigital reference object (DRO)dynamic susceptibility contrast (DSC)multi-echoperfusion

Identifiers

PMID31400035
PMCPMC6778704
OpenAlexW2968230792

What OpenQuestion holds

Textmetadata
LicenceTDM
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.