Evidence map›Paper›PMID 33045537›Full record

ArticleNeuroImage. Clinical2020

Parieto-occipital sulcus widening differentiates posterior cortical atrophy from typical Alzheimer disease.

Giorgio G Fumagalli, Paola Basilico, Andrea Arighi, Matteo Mercurio, Marta Scarioni, Tiziana Carandini, Annalisa Colombi, Anna M Pietroboni, Luca Sacchi, Giorgio Conte and 4 more

Abstract read
In one paragraph

Article in NeuroImage. Clinical, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Article
  2. Predictor model for mild cognitive impairment in Parkinson's disease using visual rating scales.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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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

14 authors.

Giorgio G FumagalliFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy; Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, 50121 Firenze, Italy. Electronic address: giorgiofumagalli@hotmail.com.
Paola BasilicoNeurological Department, ASST Lecco, Lecco, Italy.
Andrea ArighiFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Matteo MercurioFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Marta ScarioniFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy; Department of Neurology, Amsterdam University Medical Centers, Location VUmc, Alzheimer Center, Amsterdam, the Netherlands.
Tiziana CarandiniFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Annalisa ColombiDepartment of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy.
Anna M PietroboniFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Luca SacchiDepartment of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy.
Giorgio ConteFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Elisa ScolaFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy.
Fabio TriulziFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy; Department of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy.
Elio ScarpiniFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy; Department of Biomedical, Surgical and Dental Sciences, Dino Ferrari Center, CRC Molecular Basis of Neuro-Psycho-Geriatrics Diseases, University of Milan, Milan, Italy.
Daniela GalimbertiFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, via F. Sforza, 35, 20122 Milan, Italy; Department of Biomedical, Surgical and Dental Sciences, Dino Ferrari Center, CRC Molecular Basis of Neuro-Psycho-Geriatrics Diseases, University of Milan, Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPosterior Cortical Atrophy (PCA) is an atypical presentation of Alzheimer disease (AD) characterized by atrophy of posterior brain regions. This pattern of atrophy is usually evaluated with Koedam visual rating scale, a score developed to enable visual assessment of parietal atrophy on magnetic resonance imaging (MRI). However, Koedam scale is complex to assess and its utility in the differential diagnosis between PCA and typical AD has not been demonstrated yet. The aim of this study is therefore to spot a simple and reliable MRI element able to differentiate between PCA and typical AD using visual rating scales.

methods15 patients who presented with progressive complex visual disorders and predominant occipitoparietal hypometabolism on PET-FDG were selected from our centre and compared with 30 typical AD patients and 15 healthy subjects. We used previously validated visual rating scales including Koedam scale, which we divided into three major components: posterior cingulate, precuneus and parieto-occipital. Subsequently we validated the results using the automated software Brainvisa Morphologist and Voxel Based Morphometry (VBM).

resultsPatients with PCA, compared to typical AD, showed higher widening of the parieto-occipital sulcus, assessed both with visual rating scales and Brainvisa. In the corresponding areas, the VBM analysis showed an inverse correlation between the results obtained from the visual evaluation scales with the volume of the grey matter and a direct correlation between the same results with the cerebrospinal fluid volume.

conclusionsA visually based rating scale for parieto-occipital sulcus can distinguish Posterior Cortical Atrophy from typical Alzheimer disease.

Indexed as

Alzheimer DiseaseAtrophyCerebral CortexGray MatterHumansMagnetic Resonance ImagingOccipital LobeAlzheimer DiseaseDifferential DiagnosisPosterior Cortical AtrophyVisual rating scaleVoxel based morphometry

Identifiers

PMID33045537
PMCPMC7559336

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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.