Neuroanatomical Classification in a Population-Based Sample of Psychotic Major Depression and Bipolar I Disorder with 1 Year of Diagnostic Stability

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art_SERPA_Neuroanatomical_Classification_in_a_Population_Based_Sample_of_2014.PDF (1.29 MB)
Citações na Scopus
43
Tipo de produção
article
Data de publicação
2014
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
HINDAWI PUBLISHING CORPORATION
Autores
OU, Yangming
DOSHI, Jimit
DAVATZIKOS, Christos
Citação
BIOMED RESEARCH INTERNATIONAL, article ID 706157, 9p, 2014
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
The presence of psychotic features in the course of a depressive disorder is known to increase the risk for bipolarity, but the early identification of such cases remains challenging in clinical practice. In the present study, we evaluated the diagnostic performance of a neuroanatomical pattern classification method in the discrimination between psychotic major depressive disorder(MDD), bipolar I disorder (BD-I), and healthy controls (HC) using a homogenous sample of patients at an early course of their illness. Twenty-three cases of first-episode psychotic mania (BD-I) and 19 individuals with a first episode of psychotic MDD whose diagnosis remained stable during 1 year of followup underwent 1.5 T MRI at baseline. A previously validated multivariate classifier based on support vector machine (SVM) was employed and measures of diagnostic performance were obtained for the discrimination between each diagnostic group and subsamples of age-and gender-matched controls recruited in the same neighborhood of the patients. Based on T1-weighted images only, the SVM-classifier afforded poor discrimination in all 3 pairwise comparisons: BD-I versus HC; MDD versus HC; and BD-I versus MDD. Thus, at the population level and using structural MRI only, we failed to achieve good discrimination between BD-I, psychotic MDD, and HC in this proof of concept study.
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URI
https://observatorio.fm.usp.br/handle/OPI/5524
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Coleções
Artigos e Materiais de Revistas Científicas - LIM/21
Artigos e Materiais de Revistas Científicas - FM/MPR
Artigos e Materiais de Revistas Científicas - FM/MPS
Artigos e Materiais de Revistas Científicas - LIM/23
Artigos e Materiais de Revistas Científicas - LIM/27
Artigos e Materiais de Revistas Científicas - LIM/39