Document Detail


Diffusion tensor tractography predicts motor functional outcome in patients with spontaneous intracerebral hemorrhage.
MedLine Citation:
PMID:  18300896     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: We prospectively investigated the predictive value of diffusion tensor tractography for motor functional outcome in a case series of patients with intracerebral hemorrhage. METHODS: Diffusion tensor tractography was performed in 17 patients with intracerebral hemorrhage (putamen, nine patients; thalamus, seven patients; combined, one patient) within 5 days after onset. Mean fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values along the corticospinal tracts at the level of the hematoma were measured bilaterally, and the ratios of values (hematoma side/contralateral side) were determined as FA and ADC ratios, respectively. Patients were evaluated for motor function on admission and at 3 months after onset using the manual muscle test score and then divided into good (manual muscle test, 4-5) and poor (manual muscle test, 0-3) motor function groups. RESULTS: FA ratio measured shortly after the onset of intracerebral hemorrhage correlated well with motor functional outcome at 3 months (P < 0.05) but not with motor function on admission. FA ratios in the group with good motor functional outcome were significantly higher than those in the group with poor motor functional outcome (P < 0.01). The ADC ratio did not correlate with motor function either on admission or at 3 months. All patients with an FA ratio greater than 0.8 had a good motor functional outcome. In three patients, however, motor functional outcomes were favorable even though FA ratios were not high; in these patients, ADC ratios tended to be elevated. CONCLUSION: Motor functional outcome in patients with intracerebral hemorrhage can be predicted by measuring FA values using diffusion tensor tractography.
Authors:
Hideyuki Yoshioka; Toru Horikoshi; Shigeki Aoki; Masaaki Hori; Keiichi Ishigame; Mikito Uchida; Masao Sugita; Tsutomu Araki; Hiroyuki Kinouchi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  62     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-02-27     Completed Date:  2008-04-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  97-103; discussion 103     Citation Subset:  IM    
Affiliation:
Department of Neurosurgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan. hidey@yamanashi.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Anisotropy
Cerebral Hemorrhage / classification,  diagnosis*,  physiopathology*
Diffusion Magnetic Resonance Imaging / methods*
Female
Hand / physiopathology
Humans
Male
Middle Aged
Motor Activity / physiology*
Muscle, Skeletal / physiopathology
Prospective Studies
Psychomotor Performance
Pyramidal Tracts / pathology
Recovery of Function
Statistics, Nonparametric

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