Evidence map›Paper›PMID 30772764›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2019

Exploring the relationship between electrical impedance myography and quantitative ultrasound parameters in Duchenne muscular dystrophy.

Bhaskar Roy, Basil T Darras, Craig M Zaidman, Jim S Wu, Kush Kapur, Seward B Rutkove

Abstract readComparative Study
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

7 citing papers in PubMed, 18 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Bhaskar RoyBeth Israel Deaconess Medical Center, Boston, MA, USA.
Basil T DarrasBoston Children's Hospital, Boston, MA, USA.
Craig M ZaidmanWashington University in St. Louis, MO, USA.
Jim S WuBeth Israel Deaconess Medical Center, Boston, MA, USA.
Kush KapurBoston Children's Hospital, Boston, MA, USA.
Seward B RutkoveBeth Israel Deaconess Medical Center, Boston, MA, USA. Electronic address: srutkove@bidmc.harvard.edu.
Beth Israel Deaconess Medical Center · USBoston Children's Hospital · USWashington University in St. Louis · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Electrical impedance myography and quantitative ultrasound in Duchenne muscular dR01AR060850 · NIAMS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI DARRAS, BASIL T, RUTKOVE, SEWARD B. · 2011 to 2014
$1.7M
Innovative Ultrasound Technology in Neuromuscular DiseaseK24NS060951 · NINDS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI RUTKOVE, SEWARD B. · 2008 to 2017
$1.5M
NCATS NIH HHS UL1 TR001863NIAMS NIH HHS R01 AR060850NINDS NIH HHS K24 NS060951
6 · The paper itself

Abstract

objectivesQuantitative ultrasound (QUS), including grayscale level analysis (GLA) and quantitative backscatter analysis (QBA), and electrical impedance myography (EIM) have been proposed as biomarkers in Duchenne muscular dystrophy (DMD). However, the relationship between these methods has not been assessed.

methodsQUS values (including GLA and QBA) and several EIM measures were recorded from six muscles in 36 DMD and 29 healthy boys between ages 5 and 13 years at baseline, 6-months, and 12-months.

resultsIn the DMD boys, a moderate correlation was noted between QUS and EIM parameters, with the strongest correlations being identified for averaged muscle values. Of the individual muscles, biceps brachii and deltoid showed the strongest correlations. For example, in biceps, the QBA/EIM correlation coefficient (Spearman rho) was ≥0.70 (p < 0.01). Importantly, changes in QUS values over 12 months also correlated moderately with changes in EIM parameters and EIM/QBA rho values mostly varied between -0.53 and -0.70 (p ≤ 0.02). No significant correlations were identified in the healthy boys.

conclusionsA moderate correlation of QUS with EIM in DMD boys suggests that the two technologies provide related data but are sensitive to different pathological features of muscle. SIGNIFICANCE: The use of both technologies jointly in assessing DMD progression and response to therapy should be considered.

Indexed as

AdolescentChildChild, PreschoolElectric ImpedanceElectromyographyHumansMaleMuscle, SkeletalMuscular Dystrophy, DuchenneSensitivity and SpecificityUltrasonographyDuchenne muscular dystrophyElectrical impedance myographyOutcome measuresQuantitative ultrasound

Identifiers

PMID30772764
PMCPMC6411427
OpenAlexW2914391908

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.