Evidence map›Paper›PMID 29274037›Full record

ArticleSurgical and radiologic anatomy : SRA2018

Depicting the pterygopalatine ganglion on 3 Tesla magnetic resonance images.

Daniel Fossum Bratbak, Mari Folvik, Ståle Nordgård, Lars Jacob Stovner, David W Dodick, Manjit Matharu, Erling Tronvik

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Surgical and radiologic anatomy : SRA, 2018. 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
–field-weighted citation impact
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.

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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

7 authors.

Daniel Fossum BratbakDepartment of Neurosurgery, St. Olavs Hospital, Trondheim University Hospital, Olav Kyrres gate 17, 7006, Trondheim, Norway. daniel.f.bratbak@ntnu.no.ORCID http://orcid.org/0000-0001-8483-7489
Mari FolvikDepartment of Radiology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
Ståle NordgårdDepartment of Neuroscience, NTNU Norwegian University of Science and Technology, Trondheim, Norway.
Lars Jacob StovnerDepartment of Neuroscience, NTNU Norwegian University of Science and Technology, Trondheim, Norway.
David W DodickDepartment of Neuroscience, NTNU Norwegian University of Science and Technology, Trondheim, Norway.
Manjit MatharuHeadache Group, Institute of Neurology, University College London and National Hospital for Neurology and Neurosurgery, London, UK.
Erling TronvikDepartment of Neuroscience, NTNU Norwegian University of Science and Technology, Trondheim, Norway.

Funding

Joint Research Unit between St. Olavs Hospital and Norwegian University of Science and Technology 9885NTNU Discovery 244278The Liaison Committee between the Central Norway Regional Health Authority and Norwegian University of Science and Technology 12/9996
6 · The paper itself

Abstract

purposeThe pterygopalatine ganglion has yet not been identified on medical images in living humans. The primary aim of this study was to evaluate whether the pterygopalatine ganglion could be identified on 3 T MR imaging.

methodsThis study was performed on medical images of 20 Caucasian subjects on both sides (n = 40 ganglia) with an exploratory design. 3 T MR images were assessed by two physicians for the presence and size of the pterygopalatine ganglion. The distance from the pterygopalatine ganglion to four bony landmarks was registered from fused MR and CT images. In an equivalence analysis, the distances were compared to those obtained in an anatomical cadaveric study serving as historical controls (n = 50).

resultsA structure assumed to be the pterygopalatine ganglion was identified on MR images in all patients on both sides by both physicians. The mean size was depth 2.1 ± 0.5 mm, width 4.2 ± 1.1 mm and height 5.1 ± 1.4 mm, which is in accordance with formerly published data. Equivalence of the measurements on MR images and the historical controls was established, suggesting that the structure identified on the MR images is the pterygopalatine ganglion.

conclusionOur findings suggest that the pterygopalatine ganglion can be detected on 3 T MR images. Identification of the pterygopalatine ganglion may be important for image-guided interventions targeting the pterygopalatine ganglion, and has the potential to increase the efficacy, safety and reliability for these treatments.

Indexed as

AdultAgedClinical Trials as TopicFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedPterygopalatine FossaReproducibility of ResultsImage guidanceMagnetic resonanceMRIPterygopalatine ganglionSphenopalatine ganglionSurgical navigation

Identifiers

PMID29274037

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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.