Evidence map›Paper›PMID 30277274›Full record

ArticleMagnetic resonance in medicine2019

3D high-resolution imaging of 2-hydroxyglutarate in glioma patients using DRAG-EPSI at 3T in vivo.

Zhongxu An, Vivek Tiwari, Jeannie Baxter, Michael Levy, Kimmo J Hatanpaa, Edward Pan, Elizabeth A Maher, Toral R Patel, Bruce E Mickey, Changho Choi

Open access · greenAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

6 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. 2-Hydroxyglutarate in Cancer Cells.Antioxidants & redox signaling · 2020
    Review
  6. 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

10 authors at 4 institutions in 1 country.

Zhongxu AnAdvanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.ORCID 0000-0003-3759-5645
Vivek TiwariAdvanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.
Jeannie BaxterAdvanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.
Michael LevyDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.
Kimmo J HatanpaaDepartment of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas.
Edward PanDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.
Elizabeth A MaherDepartment of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas.
Toral R PatelDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.
Bruce E MickeyDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.
Changho ChoiAdvanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.
Southwestern Medical Center · USNeurological Surgery · USCenter for Neuro-Oncology · USThe University of Texas Southwestern Medical Center · US

Funding

Clinical development of cancer-specific MRS biomarkers in malignant gliomasR01CA184584 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI CHOI, CHANGHO · 2014 to 2018
$1.6M
Cancer Prevention Research Institute of TexasNCI NIH HHS R01 CA184584NCI NIH HHS R01CA184584NIH HHS R01CA184584NIH HHS RP130427
6 · The paper itself

Abstract

purposeTo develop 3D high-resolution imaging of 2-hydroxyglutarate (2HG) at 3T in vivo.

methodsEcho-planar spectroscopic imaging with dual-readout alternated-gradients (DRAG-EPSI), which was recently reported for 2D imaging of 2HG at 7T, was tested for 3D imaging of 2HG at 3T. The frequency drifts and acoustic noise induced by DRAG-EPSI were investigated in comparison with conventional EPSI. Four patients with IDH-mutant gliomas were enrolled for 3D imaging of 2HG and other metabolites. A previously reported 2HG-tailored TE 97-ms PRESS sequence preceded the DRAG-EPSI readout gradients. Unsuppressed water, acquired with EPSI, was used as reference for multi-channel combination, eddy-current compensation, and metabolite quantification. Spectral fitting was conducted with the LCModel using in-house basis sets.

resultsWith gradient strength of 4 mT/m and slew rate of 20 mT/m/ms, DRAG-EPSI produced frequency drifts smaller by 5.5-fold and acoustic noise lower by 25 dB compared to conventional EPSI. In a 19-min scan, 3D DRAG-EPSI provided images of 2HG with precision (CRLB <10%) at a resolution of 10 × 10 × 10 mm

conclusionTogether with 2HG-optimized PRESS, DRAG-EPSI provides an effective tool for reliable 3D high-resolution imaging of 2HG at 3T in vivo.

Indexed as

Echo-Planar ImagingImaging, Three-DimensionalAcousticsAdultAlgorithmsAstrocytomaBrainBrain MappingBrain NeoplasmsContrast MediaFemaleGliomaGlutaratesHumansImage Processing, Computer-AssistedMalealpha-hydroxyglutarateContrast MediaGlutarates1H MRS2-hydroxyglutarate (2HG)3Tdual-readout alternated-gradients EPSI (DRAG-EPSI)echo-planar spectroscopy imaging (EPSI)gliomahuman brain tumor

Identifiers

PMID30277274
PMCPMC6289635
OpenAlexW2890083704

What OpenQuestion holds

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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.