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Clinical Article
MRI findings of subcallosal 'dot-dash' sign in patients with opticospinal multiple sclerosis
CHEN Zhi-ye  LOU Xin  YANG Yang  MA Lin 

DOI:10.3969/j.issn.1674-8034.2011.04.005.


[Abstract] Objective: To evaluate the dignostic value of the subcallosal dot-dash sign in patients with opticospinal multiple slcerosis (OSMS).Materials and Methods: The sagittal thin slice T2-FLAIR images were obtained in 42 OSMS patients and 27 normal controls by using GE 3.0 T MR system. The subcallosal dot-dash sign was observed on mid-sagittal planes.Results: The positive rate for subcallosal dot-dash sign was 66.67% (28/42) in OSMS patients. The younger OSMS group (<50 years) had a higher positive rate (73.5%) for subcallosal dot-dash sign than older OSMS group (≥50 years) (37.5%). The subcallosal dot-dash sign was not seen in the normal controls.Conclusion: The subcallosal dot-dash sign on sagittal plane may be a relative characteristic MR findings for OSMS.
[Keywords] Opticospinal multiple sclerosis;Corpus callosum;Magnetic resonance imaging;Fluid attenuated inversion recovery

CHEN Zhi-ye Department of Radiology, PLA General Hospital, Beijing 100853, China

LOU Xin Department of Radiology, PLA General Hospital, Beijing 100853, China

YANG Yang Department of Neurology, PLA General Hospital, Beijing 100853, China

MA Lin* Department of Radiology, PLA General Hospital, Beijing 100853, China

*Correspondence to: Ma L, E-mail: cjr.malin@vip.163.com

Conflicts of interest   None.

Received  2011-05-25
Accepted  2011-06-14
DOI: 10.3969/j.issn.1674-8034.2011.04.005
DOI:10.3969/j.issn.1674-8034.2011.04.005.

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