Cavum septi pellucidi in first-episode schizophrenia and first-episode affective psychosis: An MRI study

Kiyoto Kasai, Robert W. McCarley, Dean F. Salisbury, Toshiaki Onitsuka, Susan Demeo, Deborah Yurgelun-Todd, Ron Kikinis, Ferenc A. Jolesz, Martha E. Shenton

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A high prevalence of abnormal cavum septi pellucidi (CSP) in schizophrenia may reflect neurodevelopmental abnormalities in midline structures of the brain. The relationship, however, between abnormal CSP and clinical symptoms, and with abnormalities in other limbic structures remains unclear, as does the question of whether a similar abnormality is present in affective psychosis. Seventy-four patients at their first hospitalization, 33 with schizophrenia and 41 with affective (mainly manic) psychosis, and 56 healthy control subjects underwent high-spatial-resolution magnetic resonance imaging (MRI). CSP on six slices or more on 0.9375-mm resampled coronal images was categorized as abnormal. The prevalence of abnormal CSP in both schizophrenic patients (26.1%) and affective psychosis patients (18.2%) was significantly higher than was observed in control subjects (8.2%). In schizophrenic patients only, larger CSP was significantly associated with more severe thinking disturbance and smaller left parahippocampal gyrus gray matter volumes. While the relationships between CSP ratings and clinical symptoms did not significantly differ between the two psychosis groups as assessed by the comparison of regression slopes, the association with limbic volumes appeared to be specific to schizophrenic patients. These results suggest that psychosis associated with schizophrenia and affective disorder share, at least to some extent, neurodevelopmental abnormalities involving midline structures and associated psychopathological consequences. However, the association between abnormal CSP and limbic systems may be more specific to schizophrenia.

元の言語英語
ページ(範囲)65-76
ページ数12
ジャーナルSchizophrenia research
71
発行部数1
DOI
出版物ステータス出版済み - 11 1 2004

All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health
  • Biological Psychiatry

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    Kasai, K., McCarley, R. W., Salisbury, D. F., Onitsuka, T., Demeo, S., Yurgelun-Todd, D., Kikinis, R., Jolesz, F. A., & Shenton, M. E. (2004). Cavum septi pellucidi in first-episode schizophrenia and first-episode affective psychosis: An MRI study. Schizophrenia research, 71(1), 65-76. https://doi.org/10.1016/j.schres.2003.12.010