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Quantitative assessment of brain iron by R 2* relaxometry in patients with cervical dystonia
Author(s) -
Aschermann Zsuzsanna,
Perlaki Gabor,
Orsi Gergely,
Nagy Szilvia Anett,
Horvath Andrea,
Bone Beata,
Bihari Katalin,
Acs Peter,
Janszky Jozsef,
Komoly Samuel,
Bogner Peter
Publication year - 2015
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.26306
Subject(s) - cervical dystonia , putamen , dystonia , relaxometry , globus pallidus , medicine , pathophysiology , thalamus , magnetic resonance imaging , nuclear medicine , pathology , psychology , basal ganglia , central nervous system , radiology , psychiatry , spin echo
Background The pathophysiology of cervical dystonia is poorly understood. Increased brain iron deposition has been described in different movement disorders. Our aim was to investigate brain iron content in patients with cervical dystonia, using R2* relaxation rate, a validated MRI marker of brain iron level. Methods Twelve female patients with primary focal cervical dystonia (mean age: 45.4 ± 8.0 years) and 12 age‐matched healthy female subjects (mean age: 45.0 ± 8.0 years) underwent 3T MRI to obtain regional R2* relaxation rates of the thalamus, caudate nucleus, putamen, and globus pallidus (GP). Regions of interest were delineated automatically on T1‐weighted MRIs. Results R2* values in the putamen were positively correlated with age. Patients with cervical dystonia showed elevated R2* values in the GP. Conclusions This pilot study provides the first quantitative support for increased brain iron deposition in cervical dystonia. Further studies are needed to explore the implications of this finding.