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(Stroke. 2003;34:e159.)
© 2003 American Heart Association, Inc.

Short Communication

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 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.).

Reprint requests to Kei Yamada, Department of Radiology, Kyoto Prefectural University of Medicine, Kajii-Cyo, Kawaramachi Hirokoji Sagaru, Kamigyo-Ku, Kyoto City, Kyoto, Japan 602–8566. E-mail kyamada{at}koto.kpu-m.ac.jp

Abstract

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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