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Propriospinal myoclonus: Utility of magnetic resonance diffusion tensor imaging and fiber tracking
Author(s) -
Roze Emmanuel,
Apartis Emmanuelle,
Vidailhet Marie,
Cochen Valérie,
Beaugendre Yara,
Trocello JeanMarc,
Lasjaunias Pierre,
Ducreux Denis
Publication year - 2007
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.21562
Subject(s) - myoclonus , spinal cord , neuroscience , magnetic resonance imaging , diffusion mri , medicine , movement disorders , physical medicine and rehabilitation , psychology , anatomy , pathology , radiology , disease
Propriospinal myoclonus (PSM) is a rare movement disorder characterized by involuntary spinal‐generated muscular jerks that spread rostrally and caudally to other spinally innervated muscles. Most patients have no clear etiology, and conventional MRI of the spinal cord is generally normal. Here we report the use of magnetic resonance diffusion tensor imaging (DTI) and fiber tracking to detect tract‐specific abnormalities in a patient with propriospinal myoclonus. As the patient had the fragile‐X premutation and antithyroid antibodies, spinal cord DTI abnormalities may be related to these conditions. Tract‐specific analysis may provide new insights into the pathophysiology of propriospinal myoclonus. © 2007 Movement Disorder Society