Published Online
on August 7, 2003

A more recent version of this article appeared on September 1, 2003

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Submitted on March 11, 2003
Accepted on April 2, 2003

Fiber-Tracking Method Reveals Sensorimotor Pathway Involvement in Stroke Patients

Kei Yamada MD, PhD^*; Susumu Mori PhD; Hisao Nakamura MD; Hirotoshi Ito MD; Osamu Kizu MD, PhD; Kensuke Shiga MD, PhD; Kenji Yoshikawa MD, PhD; Masahiro Makino MD, PhD; Sachiko Yuen MD; Takao Kubota MD; Osamu Tanaka MD; and Tsunehiko Nishimura MD, PhD

From the Departments of Radiology (K.Y., H.N., H.I., O.K., S.Y., T.K., O.T., T.N.) and Neurology (K.S., K.T., M.M.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Md (S.M.).

^* To whom correspondence should be addressed. E-mail: kyamada{at}koto.kpu-m.ac.jp.

Background and Purpose--We tested the feasibility of a new MRI technique that provides visualization of the sensorimotor tracts in vivo in a group of stroke victims.

Summary of Report--Fourteen patients with small infarctions involving the white matter of the supratentorial brain were evaluated. Sensorimotor tracts on the lesional and contralesional sides were successfully depicted in all cases. The position of the sensorimotor tracts relative to the infarct was in good agreement with clinical symptoms. The overall sensitivity and specificity for sensorimotor tract involvement were 100% and 77%, respectively.

Conclusions--Our proposed fiber-tracking method was shown to be a clinically feasible technique that correlates well with clinical symptoms.

Key words: infarction • magnetic resonance imaging • magnetic resonance imaging, diffusion-weighted

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