Evidence map›Paper›PMID 19797788›Full record

ArticleAJNR. American journal of neuroradiology2010

In vivo proton MR spectroscopy evaluation of pyogenic brain abscesses: a report of 194 cases.

D Pal, A Bhattacharyya, M Husain, K N Prasad, C M Pandey, R K Gupta

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.7field-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

24 citing papers in PubMed, 97 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  6. Review
  7. Review
  8. Proton MR Spectroscopy of Pediatric Brain Disorders.Diagnostics (Basel, Switzerland) · 2022
    Review
  9. Article
  10. Review
  11. Review
  12. MR spectroscopy in pediatric neuroradiology.Translational pediatrics · 2021
    Review
  13. Review
  14. Brain abscess in pediatric age: a review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2019
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Multimodality Brain Tumor Imaging: MR Imaging, PET, and PET/MR Imaging.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2015
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

D PalDepartment of Radiodiagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
A Bhattacharyya
M Husain
K N Prasad
C M Pandey
R K Gupta
Sanjay Gandhi Post Graduate Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe combination of nonspecific clinical findings and similarities in morphologic appearances on imaging often makes it difficult to distinguish abscesses from other brain lesions. We present a retrospective analysis of in vivo (1)H-MR spectroscopy data for characterization of the etiology of the brain abscess based on the established criteria and demonstrate the sensitivity and specificity of metabolite markers assigned to specific bacterial groups defined by the microbial culture in 194 patients. MATERIALS AND

methodsConventional MR imaging and in vivo (1)H-MR spectroscopy data were evaluated from patients with pyogenic brain abscesses, with ages ranging from 3 to 60 years. Imaging and (1)H-MR spectroscopy were performed on a 1.5T scanner. After MR imaging was performed and analyzed, pus aspirates were obtained in all patients. The causative organisms were confirmed by pus cultures.

resultsResonance of AAs with or without other metabolites on in vivo (1)H-MR spectroscopy was observed in 80% of abscesses, with a sensitivity and specificity of 0.72 and 0.30, respectively. Most obligate anaerobes and some facultative anaerobes showed the presence of Lac/Lip, AAs, and Ac with or without Suc. Mostly obligate aerobes or facultative anaerobes showed the presence of Lac and AAs, with or without lipids.

conclusionsThe presence of AAs on in vivo (1)H-MR spectroscopy is a sensitive marker of pyogenic abscess, but its absence does not rule out a pyogenic etiology. The presence of Ac with or without Suc favors an anaerobic bacterial origin of the abscess; however, this may also be seen in some of the abscesses secondary to facultative anaerobes.

Indexed as

Diffusion Tensor ImagingAdolescentAdultBacterial InfectionsBrain AbscessChildChild, PreschoolFemaleHumansMagnetic Resonance SpectroscopyMaleMicrobiological TechniquesMiddle AgedProtonsRetrospective StudiesSensitivity and SpecificityProtons

Identifiers

PMID19797788
PMCPMC7964137
OpenAlexW2072029682

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.