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Morphometric analysis of subcortical structures in progressive supranuclear palsy: In vivo evidence of neostriatal and mesencephalic atrophy

Looi, Jeffrey C. L.; Macfarlane, Matthew D.; Walterfang, Mark; Styner, Martin; Velakoulis, Dennis; Latt, Jimmy; van Westen, Danielle LU and Nilsson, Christer LU (2011) In Psychiatry Research: Neuroimaging 194(2). p.163-175
Abstract
Progressive supranuclear palsy (PSP) is a neurodegenerative disease characterized by gait and postural disturbance, gaze palsy, apathy, decreased verbal fluency and dysexecutive symptoms, with some of these clinical features potentially having origins in degeneration of frontostriatal circuits and the mesencephalon. This hypothesis was investigated by manual segmentation of the caudate and putamen on MRI scans, using previously published protocols, in 15 subjects with PSP and 15 healthy age-matched controls. Midbrain atrophy was assessed by measurement of mid-sagittal area of the midbrain and pons. Shape analysis of the caudate and putamen was performed using spherical harmonics (SPHARM-PDM, University of North Carolina). The sagittal pons... (More)
Progressive supranuclear palsy (PSP) is a neurodegenerative disease characterized by gait and postural disturbance, gaze palsy, apathy, decreased verbal fluency and dysexecutive symptoms, with some of these clinical features potentially having origins in degeneration of frontostriatal circuits and the mesencephalon. This hypothesis was investigated by manual segmentation of the caudate and putamen on MRI scans, using previously published protocols, in 15 subjects with PSP and 15 healthy age-matched controls. Midbrain atrophy was assessed by measurement of mid-sagittal area of the midbrain and pons. Shape analysis of the caudate and putamen was performed using spherical harmonics (SPHARM-PDM, University of North Carolina). The sagittal pons area/midbrain area ratio (P/M ratio) was significantly higher in the PSP group, consistent with previous findings. Significantly smaller striatal volumes were found in the PSP group - putamina were 10% smaller and caudate volumes were 17% smaller than in controls after controlling for age and intracranial volume. Shape analysis revealed significant shape deflation in PSP in the striatum, compared to controls; with regionally significant change relevant to frontostriatal and corticostriatal circuits in the caudate. Thus, in a clinically diagnosed and biomarker-confirmed cohort with early PSP, we demonstrate that neostriatal volume and shape are significantly reduced in vivo. The findings suggest a neostriatal and mesencephalic structural basis for the clinical features of PSP leading to frontostriatal and mesocortical-striatal circuit disruption. (C) 2011 Elsevier Ireland Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Neostriatum, Caudate, Putamen, Mesencephalon, Magnetic resonance imaging
in
Psychiatry Research: Neuroimaging
volume
194
issue
2
pages
163 - 175
publisher
Elsevier
external identifiers
  • wos:000296686200008
  • scopus:80054069355
ISSN
0925-4927
DOI
10.1016/j.pscychresns.2011.07.013
language
English
LU publication?
yes
id
9d58e32b-1333-431e-a2a6-e6a9ddeedd2a (old id 2227455)
date added to LUP
2012-01-02 07:55:06
date last changed
2017-07-30 03:58:25
@article{9d58e32b-1333-431e-a2a6-e6a9ddeedd2a,
  abstract     = {Progressive supranuclear palsy (PSP) is a neurodegenerative disease characterized by gait and postural disturbance, gaze palsy, apathy, decreased verbal fluency and dysexecutive symptoms, with some of these clinical features potentially having origins in degeneration of frontostriatal circuits and the mesencephalon. This hypothesis was investigated by manual segmentation of the caudate and putamen on MRI scans, using previously published protocols, in 15 subjects with PSP and 15 healthy age-matched controls. Midbrain atrophy was assessed by measurement of mid-sagittal area of the midbrain and pons. Shape analysis of the caudate and putamen was performed using spherical harmonics (SPHARM-PDM, University of North Carolina). The sagittal pons area/midbrain area ratio (P/M ratio) was significantly higher in the PSP group, consistent with previous findings. Significantly smaller striatal volumes were found in the PSP group - putamina were 10% smaller and caudate volumes were 17% smaller than in controls after controlling for age and intracranial volume. Shape analysis revealed significant shape deflation in PSP in the striatum, compared to controls; with regionally significant change relevant to frontostriatal and corticostriatal circuits in the caudate. Thus, in a clinically diagnosed and biomarker-confirmed cohort with early PSP, we demonstrate that neostriatal volume and shape are significantly reduced in vivo. The findings suggest a neostriatal and mesencephalic structural basis for the clinical features of PSP leading to frontostriatal and mesocortical-striatal circuit disruption. (C) 2011 Elsevier Ireland Ltd. All rights reserved.},
  author       = {Looi, Jeffrey C. L. and Macfarlane, Matthew D. and Walterfang, Mark and Styner, Martin and Velakoulis, Dennis and Latt, Jimmy and van Westen, Danielle and Nilsson, Christer},
  issn         = {0925-4927},
  keyword      = {Neostriatum,Caudate,Putamen,Mesencephalon,Magnetic resonance imaging},
  language     = {eng},
  number       = {2},
  pages        = {163--175},
  publisher    = {Elsevier},
  series       = {Psychiatry Research: Neuroimaging},
  title        = {Morphometric analysis of subcortical structures in progressive supranuclear palsy: In vivo evidence of neostriatal and mesencephalic atrophy},
  url          = {http://dx.doi.org/10.1016/j.pscychresns.2011.07.013},
  volume       = {194},
  year         = {2011},
}