Evidence map›Paper›PMID 22095050›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2012

Predictive value of dopamine transporter SPECT imaging with [¹²³I]PE2I in patients with subtle parkinsonian symptoms.

Morten Ziebell, Birgitte B Andersen, Gerda Thomsen, Lars H Pinborg, Merete Karlsborg, Steen G Hasselbalch, Gitte M Knudsen

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Article in European journal of nuclear medicine and molecular imaging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

10 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Orthostatic hypotension, non-dipping and striatal dopamine in Parkinson disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2013
    Article
  9. SPECT molecular imaging in Parkinson's disease.Journal of biomedicine & biotechnology · 2012
    Review
  10. 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

7 authors at 4 institutions in 1 country.

Morten ZiebellNeurobiology Research Unit & Cimbi, Rigshospitalet and University of Copenhagen, N9201, 9 Blegdamsvej, Copenhagen DK-2100, Denmark. ziebell@nru.dk
Birgitte B Andersen
Gerda Thomsen
Lars H Pinborg
Merete Karlsborg
Steen G Hasselbalch
Gitte M Knudsen
Rigshospitalet · DKBispebjerg Hospital · DKCopenhagen University Hospital · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo examine the diagnostic sensitivity and specificity of dopamine transporter SPECT imaging with a highly dopamine transporter selective radioligand. The study included consecutively enrolled, drug-naive patients with an average short history of parkinsonian motor symptoms, referred for diagnostic scanning.

methodsThe study group comprised 288 patients naive to antiparkinson treatment who were enrolled as they were admitted for a diagnostic SPECT scan with the radioligand [(123)I]-N-(3-iodoprop-2E-enyl)-2-β-carbomethoxy-3β-(4-methylphenyl)nortropane ((123)I-PE2I). After the diagnostic scanning, patients were followed clinically with an average follow-up of 19.7 ± 12.5 months.

resultsA diagnosis could be clinically settled in 189 patients and among these patients, a dopamine transporter scan had a sensitivity of 88% and a specificity of 91% for discrimination between patients with and without striatal neurodegeneration. In cognitively impaired patients (Mini Mental State Examination <27) the specificity was 75% and the sensitivity 95%. A striatal anterior-posterior ratio (APR) of >2 differentiated between idiopathic Parkinson's disease and atypical parkinsonian syndromes with a specificity of 84% and a sensitivity of 63%.

conclusionIn drug-naive patients with subtle clinical parkinsonian motor symptoms, dopamine transporter scan using (123)I-PE21 has a high sensitivity and specificity in distinguishing between patients with and without striatal neurodegeneration. The specificity is lower in patients who are also cognitively impaired. Calculation of the striatal APR can assist in differentiating between idiopathic Parkinson's disease and atypical parkinsonian syndromes.

Indexed as

AdultAgedAged, 80 and overDopamine Plasma Membrane Transport ProteinsFemaleHumansIodine RadioisotopesMaleMiddle AgedNeurodegenerative DiseasesNortropanesParkinson DiseasePredictive Value of TestsSensitivity and SpecificityTomography, Emission-Computed, Single-PhotonDopamine Plasma Membrane Transport ProteinsIodine RadioisotopesN-(3-iodoprop-2-enyl)-2-beta-carbomethoxy-3-(4-methylphenyl)nortropaneNortropanes

Identifiers

PMID22095050
OpenAlexW2122547107

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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 OpenQuestion graph.