Evidence map›Paper›PMID 17619225›Full record

Trial reportJournal of neuro-oncology2007

Multivoxel 3D proton MR spectroscopy in the distinction of recurrent glioma from radiation injury.

Qing-Shi Zeng, Chuan-Fu Li, Kai Zhang, Hong Liu, Xiao-Shui Kang, Jun-Hui Zhen

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Journal of neuro-oncology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 7 pooled it
7.3field-weighted citation impact, top 3% 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

64 citing papers in PubMed, 7 syntheses or guidelines pooled it, 169 citations in OpenAlex.

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  14. Clinical application ofFrontiers in neuroscience · 2026
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4 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Qing-Shi ZengDepartment of Radiology, Qilu Hospital of Shandong University, 107 Wenhua West Road, Jinan, 250012, China. nanwushan@yahoo.com
Chuan-Fu Li
Kai Zhang
Hong Liu
Xiao-Shui Kang
Jun-Hui Zhen
Qilu Hospital of Shandong University · CNShandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo explore the usefulness of multivoxel 3D proton MR spectroscopy ((1)H-MRS) in assessing the recurrent contrast-enhancing areas at the site of the previously treated gliomas. MATERIALS AND

methodsIn 28 patients who had new contrast-enhancing lesions in the vicinity of the previously resected and irradiated high-grade glioma, 3D (1)H-MRS examinations were performed on a 3.0T MR scanner. Spectral data for N-acetylaspartate (NAA), choline (Cho), and creatine (Cr) were analyzed in all patients. Receiver operating characteristic analysis was performed, and the threshold value for tumor differentiation was determined. Diagnosis of these lesions was assigned by means of histopathology and follow-up.

resultsDiagnostic-quality 3D (1)H-MRS with quantifiable Cho, Cr, and NAA peaks was obtained in 92.9% of the cases. The Cho/NAA and Cho/Cr ratios were significantly higher in recurrent tumor than in radiation injury (P < 0.01), whereas the NAA/Cr ratios were lower in recurrent tumor than in radiation injury (P = 0.02). The Cho/Cr and Cho/NAA ratios were significantly higher in radiation injury than in normal-appearing white matter (P < 0.01), however, the NAA/Cr ratios were lower in radiation injury than in normal-appearing white matter (P = 0.01). Using receiver operating characteristic analysis, the resulting sensitivity, specificity and diagnostic accuracy of 3D (1)H-MRS were 94.1%, 100%, and 96.2%, respectively, based on the cut-off values of 1.71 for Cho/Cr or 1.71 for Cho/NAA or both as tumor criterion.

conclusion3D (1)H-MRS could differentiate recurrent tumor from radiation injury in patients with recurrent contrast-enhancing lesions in the vicinity of the previously treated gliomas.

Indexed as

AdultAgedAspartic AcidBrainBrain NeoplasmsCholineCreatineDiagnosis, DifferentialFemaleGliomaHumansImaging, Three-DimensionalMagnetic Resonance SpectroscopyMaleMiddle AgedNeoplasm Recurrence, LocalAspartic AcidCholineCreatineN-acetylaspartate

Identifiers

PMID17619225
OpenAlexW2052828107

What OpenQuestion holds

Textmetadata
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.