Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value.

Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Research Abstract Details 

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Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Abstract Text:

K Yamada,K Sakai,F G C Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,K Yamada,K Sakai,F G C Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,K Yamada,K Sakai,F G C Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,

BACKGROUND AND PURPOSE: The purpose of this work was to test the feasibility of using high angular resolution diffusion imaging (HARDI)-based multitensor tractography to depict motor pathways in patients with brain tumors. MATERIALS AND METHODS: Ten patients (6 males and 4 females) with a mean age of 52 years (range, 9-77 years) were scanned using a 1.5T clinical MR unit. Single-shot echo-planar imaging was used for diffusion-weighted imaging (repetition time, 6000 ms; excitation time, 88 ms) with a diffusion-sensitizing gradient in 32 orientations and a b-value of 1000 s/mm(2). Data postprocessing was performed using both the conventional single- and multitensor methods. The depiction rate of the 5 major components of the motor pathways, that is, the lower extremity, trunk, hand, face, and tongue, was assessed. RESULTS: Motor fibers on both lesional and contralesional sides were successfully depicted by both the single-tensor and multitensor techniques. However, with the single-tensor model, the depiction of motor pathways was typically limited to the fibers of trunk areas. With the multitensor technique, at least 4 of 5 major fiber bundles arising from the primary motor cortex could be identified. CONCLUSION: HARDI-based multitensor tractography using a standard b-value (1000 s/mm(2)) can depict the fiber tracts from the face and tongue regions of the primary motor cortex.

Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Publishing Authors By Initials

K Yamada,K Sakai,FG Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,K Yamada,K Sakai,FG Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,K Yamada,K Sakai,FG Hoogenraad,R Holthuizen,K Akazawa,H Ito,H Oouchi,S Matsushima,T Kubota,H Sasajima,K Mineura,T Nishimura,

For similar investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research abstracts see: investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research

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Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: AJNR. American journal of neuroradiology

VOLUME: 28

Page Numbers: 1668-73

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ISSN: 0195-6108

DAY: 20

MONTH: 09

YEAR: 2007

Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Information

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LANGUAGE: eng

NlmUniqueID: 8003708

Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value. Keywords Mesh Terms:

KEYWORDS: Sensitivity and Specificity

MESH TERMS: pathology

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Grant and Affiliation Information for Multitensor tractography enables better depiction of motor pathways: initial clinical experience using diffusion-weighted MR imaging with standard b-value.

AFFILIATION: Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto City, Kyoto, Japan. kyamada@koto.kpu-m.ac.jp

Country: United States

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MEDLINETA: AJNR Am J Neuroradiol

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