Evidence map›Paper›PMID 41003762›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2026

[18F]fluorodeprenyl-D2 PET can detect and monitor astrogliosis in anti-LGI1-IgG autoimmune encephalitis.

J A Gernert, L Sanzo, H Zimmermann, F S Thaler, L Vogler, J S Gnörich, L Tagnin, S Lindner, B Kugelmann, R Schaefer and 11 more

Abstract read
In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
  2. Review
  3. Feasibility of short imaging protocols for [European journal of nuclear medicine and molecular imaging · 2026
    Article
  4. Persistent Bilateral [Annals of clinical and translational neurology · 2026
    Article
  5. Hippocampal texture asymmetry features onFrontiers in immunology · 2026
    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

21 authors.

J A Gernert *Institute of Clinical Neuroimmunology, LMU University Hospital, LMU Munich, Munich, Germany.ORCID 0000-0002-6655-5557
L Sanzo *Department of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
H ZimmermannInstitute of Neuroradiology, LMU University Hospital, LMU Munich, Munich, Germany.
F S ThalerInstitute of Clinical Neuroimmunology, LMU University Hospital, LMU Munich, Munich, Germany.
L VoglerDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
J S GnörichDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
L TagninDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
S LindnerDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
B KugelmannDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
R SchaeferDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
G N BischofLife Molecular Imaging GmbH, Berlin, Germany.
S KatzdoblerDepartment of Neurology, LMU University Hospital, LMU Munich, Munich, Germany.
R A WernerDepartment of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
G U HöglingerDepartment of Neurology, LMU University Hospital, LMU Munich, Munich, Germany.
J LevinDepartment of Neurology, LMU University Hospital, LMU Munich, Munich, Germany.
N FranzmeierMunich Cluster for Systems Neurology (SyNergy), Munich, Germany.
B RauchmannInstitute of Neuroradiology, LMU University Hospital, LMU Munich, Munich, Germany.
R PerneczkyGerman Center for Neurodegenerative Diseases (DZNE), Munich, Germany.
M KerschensteinerInstitute of Clinical Neuroimmunology, LMU University Hospital, LMU Munich, Munich, Germany.
T Kümpfel *Institute of Clinical Neuroimmunology, LMU University Hospital, LMU Munich, Munich, Germany.
M Brendel *Department of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany. Matthias.Brendel@med.uni-muenchen.de.ORCID 0000-0002-9247-2843

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore whether detecting local astrogliosis using [18F]fluorodeprenyl-D2 ([18F]F-DED) positron-emission-tomography (PET) uncovers and monitors inflammatory lesions in patients with anti-leucine-rich glioma-inactivated 1 antibody (LGI1-ab) associated autoimmune encephalitis (AE).

methodsDynamic [18F]F-DED PET scans (0–60 min post-injection) were obtained from a cohort of 15 LGI1-AE patients, 9 of whom were re-examined during the disease course, and from 15 controls. PET quantification was performed by kinetic modelling with an image derived input function and calculation of simplified standardized uptake values (SUV). [18F]F-DED SUVr (referenced to the straight gyrus) were analyzed for LGl1-AE target regions, compared between baseline and follow-up PET scans, used to investigate asymmetry of the mesial temporal lobe (MTL), and correlated to routine clinical data.

resultsSimplified [18F]F-DED PET quantification of the 30–60 min time-frame showed excellent agreement with kinetic modelling of the full dynamic imaging protocol. In LGI1-AE patients, [18F]F-DED SUVr values were significantly increased by 16% in the MTL (p = .002) and by 12% in the cerebellum (p = .014). [18F]F-DED signals in the MTL significantly declined during the course of the disease (mean follow-up time: 15 months, p = .006). MTL asymmetry (> 5%) of [18F]F-DED SUVr was present in 8/15 of LGI1-AE patients compared to 1/15 controls (p < .001) and showed marked decline between baseline and follow-up in LGI1-AE patients.

conclusionThis pilot study shows that [18F]F-DED PET is a promising tool to monitor regional astrogliosis in LGI1-AE patients and may provide a direct read-out of this important aspect of inflammatory disease activity.

Indexed as

AutoantibodiesEncephalitisGliosisImmunoglobulin GPositron-Emission TomographyAdultAgedFemaleHumansIntracellular Signaling Peptides and ProteinsMaleMiddle Agedanti-leucine-rich glioma-inactivated 1 autoantibodyAutoantibodiesImmunoglobulin GIntracellular Signaling Peptides and ProteinsLGI1 protein, human[18F]fluorodeprenyl-D2 PET-CTAnti-LGI1-IgG autoimmune encephalitisAstrocytosisNeuroinflammation

Identifiers

PMID41003762
PMCPMC12860853

What Socratic holds

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Registered trials

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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 Socratic graph.