Evidence map›Paper›PMID 34916205›Full record

ArticleAJNR. American journal of neuroradiology2022

MRI Findings in Acute Tonsillar Infections.

J Heikkinen, J Nurminen, J Velhonoja, H Irjala, T Soukka, T Happonen, M Nyman, K Mattila, J Hirvonen

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 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

9 authors at 4 institutions in 3 countries.

J HeikkinenFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen).ORCID 0000-0002-8007-5090
J NurminenFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen).ORCID 0000-0003-2482-9051
J VelhonojaOtorhinolaryngology-Head and Neck Surgery (J.V., H.I.).ORCID 0000-0003-1988-9770
H IrjalaOtorhinolaryngology-Head and Neck Surgery (J.V., H.I.).ORCID 0000-0003-3054-4677
T SoukkaOral and Maxillofacial Surgery (T.S.), University of Turku, Turku, Finland.ORCID 0000-0001-5558-3416
T HapponenFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen).ORCID 0000-0001-9756-4985
M NymanFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen).ORCID 0000-0002-2104-6302
K MattilaFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen).ORCID 0000-0003-2969-4299
J HirvonenFrom the Departments of Radiology (J. Heikkinen, J.N., T.H., M.N., K.M., J. Hirvonen) jueshi@utu.fi.ORCID 0000-0002-0368-3746
The Jikei University Hospital · JPScientific Research Clinical Institute. L.I. Sverzhevsky · RUJikei University School of Medicine · JPUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePrevious literature is vague on the prevalence and exact nature of abscesses in tonsillar infections, ranging from intratonsillar and peritonsillar collections to deep extension involving the parapharyngeal and retropharyngeal spaces. MR imaging has excellent diagnostic accuracy in detecting neck infections and can potentially clarify this issue. We sought to characterize the spectrum of MR imaging findings regarding tonsillar infections. MATERIALS AND

methodsWe conducted a retrospective cohort study of emergency neck MR imaging scans of patients with tonsillar infections. Imaging data were assessed in terms of signs of infection and the location of abscesses and were compared with clinical findings, final diagnoses, and surgical findings as reference standards.

resultsThe study included 132 patients with tonsillar infection. Of these, 110 patients (83%) had ≥1 abscess (99 unilateral, 11 bilateral; average volume, 3.2 mL). Most abscesses were peritonsillar, and we found no evidence of intratonsillar abscess. Imaging showed evidence of parapharyngeal and retropharyngeal extension in 36% and 10% of patients, respectively. MR imaging had a high positive predictive value for both abscesses (0.98) and deep extension (0.86). Patients with large abscesses and widespread edema patterns had a more severe course of illness.

conclusionsEmergency neck MR imaging can accurately describe the extent and nature of abscess formation in tonsillar infections.

Indexed as

InfectionsPeritonsillar AbscessHumansMagnetic Resonance ImagingNeckRetrospective Studies

Identifiers

PMID34916205
PMCPMC8985668
OpenAlexW4200041324

What OpenQuestion holds

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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.