Detecting spinal pyramidal tract of amyotrophic lateral sclerosis patients with diffusion tensor tractography

Yusuke Fukui, Nozomi Hishikawa, Kota Sato, Yumiko Nakano, Ryuta Morihara, Jingwei Shang, Mami Takemoto, Yasuyuki Ohta, Toru Yamashita, Koji Abe

Research output: Contribution to journalArticle

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Abstract

The objective of this study was to determine alteration of corticospinal tract in patients with amyotrophic lateral sclerosis (ALS) using diffusion tensor tractograhy (DTT) focusing on the cervical spinal cord (C5) and transcranial magnetic stimulation (TMS). We recruited 38 ALS, 6 spinal and bulbar muscular atrophy (SBMA), 7 spastic paraplegia (SP) patients, and 8 age-matched normal controls, and then ALS were divided into two subgroups according to their clinical type: 28 ALS-limb and 10 ALS-bulbar. DTT was performed using the diffusion tensor image (DTI) track module to reconstruct two fiber tracts via C5. The fractional anisotropy (FA) values of ALS-total and ALS-limb patients were significantly reduced compared with normal controls, and SBMA patients. On the other hand, the mean diffusivity (MD) values were not significantly different among normal controls and the three disease groups. The rate of disease progression (ΔFRS-R) of ALS patients was significantly correlated with FA values and central motor conduction time (CMCT). In conclusion, the present study demonstrated a significant reduction of FA values in ALS patients, and the ΔFRS-R of ALS patients showed distinct regressions with FA values and CMCT, suggesting that this DTT analysis could be useful for detecting disease progression of ALS patients.

Original languageEnglish
JournalNeuroscience Research
DOIs
Publication statusAccepted/In press - Jan 1 2017

Fingerprint

Pyramidal Tracts
Diffusion Tensor Imaging
Amyotrophic Lateral Sclerosis
Anisotropy
Atrophic Muscular Disorders
Disease Progression
Extremities
Transcranial Magnetic Stimulation

Keywords

  • Amyotrophic lateral sclerosis
  • Corticospinal tract
  • Diffusion tensor imaging
  • Motor evoked potentials
  • Motor neuron disease
  • Tractography

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Detecting spinal pyramidal tract of amyotrophic lateral sclerosis patients with diffusion tensor tractography. / Fukui, Yusuke; Hishikawa, Nozomi; Sato, Kota; Nakano, Yumiko; Morihara, Ryuta; Shang, Jingwei; Takemoto, Mami; Ohta, Yasuyuki; Yamashita, Toru; Abe, Koji.

In: Neuroscience Research, 01.01.2017.

Research output: Contribution to journalArticle

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AU - Morihara, Ryuta

AU - Shang, Jingwei

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