Evidence map›Paper›PMID 32652959›Full record

ArticleBMC neurology2020

Detailed visual assessment of striatal dopaminergic depletion in patients with idiopathic normal pressure hydrocephalus: unremarkable or not?

Jeong-Yoon Lee, Soo Bin Park, Mina Lee, Hyunjin Ju, Kayeong Im, Kyum-Yil Kwon

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 35% 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, 16 citations in OpenAlex.

  1. Article
  2. Degenerative pathologies on cortical biopsy, dopaminergic depletion, and shunt efficacy in iNPH.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Imaging Procedure and Clinical Studies of [Nuclear medicine and molecular imaging · 2024
    Review
  8. Article
  9. The investigation of the gait parameter alterations in response to levodopa therapy and tap test in patients with idiopathic normal pressure hydrocephalus.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  10. Review
  11. 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

6 authors at 1 institution in 1 country.

Jeong-Yoon LeeDepartment of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea.
Soo Bin ParkDepartment of Nuclear Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, Seoul, Republic of Korea.
Mina LeeDepartment of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea.
Hyunjin JuDepartment of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea.
Kayeong ImDepartment of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea.
Kyum-Yil KwonDepartment of Neurology, Soonchunhyang University Seoul Hospital, Soonchunhyang University School of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea. denovo78@naver.com.ORCID http://orcid.org/0000-0001-5443-0952
Soonchunhyang University Hospital Seoul · KR

Funding

National Research Foundation of Korea NRF-2018R1C1B5045312Soonchunhyang University Not applicable
6 · The paper itself

Abstract

backgroundDopamine transporter (DAT) imaging may enable clinicians to discriminate idiopathic normal pressure hydrocephalus (iNPH) from other parkinsonian disorders. However, a specific pattern of dopaminergic loss in DAT imaging of iNPH patients remains to be further elucidated.

methodsIn this preliminary study, 11 patients with iNPH in our hospital between March 2017 and February 2019 were finally enrolled. A diagnosis of iNPH was made according to the two established criteria. For visual analysis of DAT imaging, a striatum was divided into five domains. A semi-quantitative visual assessment was performed with a consensus between a nuclear medicine specialist and an experienced neurologist who were blinded to the clinical diagnosis.

resultsStriatal dopaminergic deficits were abnormal in 90.9% (10/11) of patients with iNPH. The degree of dopaminergic reduction was mild and heterogeneous. However, a tendency of preferential striatal DAT loss in the caudate nucleus (90.9%, 10/11) than in the putamen (72.7%, 8/11) was observed, whereas ventral portion (9.1%, 1/11) was relatively preserved.

conclusionStriatal dopaminergic depletion might be mild and heterogeneous in patients with iNPH. These dopaminergic deficits were more common in the caudate nucleus than in the putamen, suggesting a pattern different from other degenerative parkinsonian disorders.

Indexed as

Corpus StriatumHydrocephalus, Normal PressureDiagnostic ImagingDopamineDopamine Plasma Membrane Transport ProteinsHumansDopamineDopamine Plasma Membrane Transport ProteinsDopamine transporter imagingFP-CIT PETNormal pressure hydrocephalusStriatal dopamine

Identifiers

PMID32652959
PMCPMC7353728
OpenAlexW3041732067

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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.