Background and Purpose— The corticoreticular pathway (CRP) is known to be an important extrapyramidal tract for walking ability. However, little about the functional role of CRP in recovery We investigated relation between ability chronic hemiparetic stroke patients. Methods— Among 209 consecutive patients, 54 who showed complete injury corticospinal (CST) affected hemisphere on diffusion tensor tractography, 20 normal subjects were recruited. Functional ambulation category was used...

Introduction: Action of the ascending reticular activating system (ARAS) on cerebral cortex is responsible for achievement consciousness. In this study, we attempted to reconstruct lower single component ARAS from formation (RF) thalamus in normal human brain using diffusion tensor imaging (DTI). Methods: Twenty six healthy subjects were recruited study. A 1.5-T scanner was used scanning images, and reconstructed FMRIB software. We utilized two ROIs reconstruction ARAS: seed ROI - RF pons at...

Background and Purpose: The corticospinal tract (CST) corticoreticular pathway (CRP) are known to be important neural tracts for motor development. However, little is about the difference in maturation of CST CRP. In this study, using diffusion tensor imaging (DTI), we investigated CRP typically developed children normal healthy adults. Methods: We recruited 75 subjects study. Diffusion was performed 1.5-T, were reconstructed DTI-Studio software. Values fractional anisotropy (FA) fiber...

Inertial measurement unit systems are wearable sensors that can measure the movement of a human in real-time with relatively little space and high portability. The purpose this study was to investigate accuracy inertial (IMU) system for gait analysis by comparing it measurements obtained using an optical motion capture (OMC) system. To compare accuracies these two different systems, Spatio-temporal kinematic parameters were measured young adults during normal walking. Thirty healthy...

<i>Objectives:</i> Contribution by the unaffected hemisphere is one of motor recovery mechanisms following stroke. We attempted to investigate changes in corticospinal tract (CST) at early stage patients with intracerebral hemorrhage (ICH), using diffusion tensor tractography (DTT). <i>Subjects and Methods:</i> Fifty-three consecutive hemiparetic 40 age- sex-matched control subjects were enrolled. DTT was performed a 1.5-tesla system ICH (7–28 days after onset)....

Clear elucidation of the exact pathophysiological mechanisms motor weakness in patients with subarachnoid hemorrhage has not yet been achieved. We attempted to investigate injury corticospinal tract using diffusion tensor imaging.Twenty-two and 24 control subjects were recruited for this study. DTI-Studio software was used reconstruction tract. measured fractional anisotropy apparent coefficient values at 5 regions interest along pathway including: corona radiata, posterior limb internal...

Purpose:The elucidation of thalamocortical connections between the mediodorsal nucleus (MD) thalamus and prefrontal cortex (PFC) is important in clinical fields neurorehabilitation psychiatry.However, little known about these human brain.We attempted to identify investigate anatomical characteristics connection MD PFC brain using diffusion tensor tractography (DTT).Materials Methods: Thirty-two healthy volunteers were recruited for this study.Diffusion images scanned a 1.5-T.A seed region...

Abstract The use of virtual reality (VR) is frequently accompanied by motion sickness, and approaches for preventing it are not yet well established. We explored the effects synchronized presentations sound on visually induced sickness (VIMS) in order to reduce VIMS. A total 25 participants bicycle riding 5 min with or without synchronization presented a head-mounted display. As result, VIMS scores measured fast scale simulator questionnaire were significantly lower who experienced scene...

Clarification of the relationship between external stimuli and brain response has been an important topic in neuroscience rehabilitation. In current study, using functional near infrared spectroscopy (fNIRS), we attempted to investigate cortical activation patterns generated during execution a rehabilitation robotic hand.Ten normal subjects were recruited for this study. Passive movements right fingers performed hand at frequency 0.5 Hz. We measured values oxy-hemoglobin (HbO),...

The authors report on a patient with traumatic brain injury who showed recovery of an injured lower portion the ascending reticular activating system (ARAS) between pontine formation and thalamus. A 57-yr-old male experienced head trauma. After 4 mos from onset, he exhibited impaired alertness, score 7 Glasgow Coma Scale. At 40 after had full Scale 15. ARAS was reconstructed using probabilistic tractography method. On 4-mo diffusion tensor tractography, fractional anisotropy tract volume...

Intraventricular hemorrhage (IVH) in adult stroke patients is known to be an independent risk factor for poor functional outcome. Using diffusion tensor imaging (DTI), we attempted investigate the effect of IVH on white matter.We recruited 10 consecutive with and 18 age- sex-matched control subjects. a 1.5-T Philips Gyroscan Intera system, DTI data was acquired at average 84 days (range: 38-149) after onset. We measured fractional anisotropy (FA) apparent coefficient (ADC) values fornix,...

We report on a patient who appeared to demonstrate neural reorganization after head trauma resulting in bilateral injury of the fornix crus.A 58-year-old male and 8 control subjects were recruited. The had undergone as result car accident lost consciousness for 30 min. Brain magnetic resonance imaging, performed 3 years trauma, showed no evidence abnormality.Discontinuation both crus proximal region was observed diffusion tensor tractography fornix. In right fornix, an abnormal tract...

We investigated red nucleus (RN) changes in patients with a cerebral infarct, using diffusion tensor imaging (DTI). Forty-nine consecutive stroke pyramidal tract(PT) injury (mean age, 62.1 years; range, 41 to 75) and 46 age-matched norm

Purpose: Other than a single case report, no diffusion tensor tractography (DTT) studies of the precommissural fornix in human brain have been conducted.In current study, we attempted to visualize using DTT.Materials and Methods: We recruited 36 healthy volunteers for this study.Diffusion images were scanned 1.5-T scanner, was analyzed Functional Magnetic Resonance Imaging Brain (FMRIB) software.Values fractional anisotropy (FA), mean diffusivity (MD), tract volume measured.Results: The...

The main function of the corticospinal tract (CST) is control distal musculature used for fine movements, in contrast, corticoreticular pathway (CRP) innervates proximal and axial musculature. We report on a patient with an intracerebral hemorrhage (ICH) who showed recovery inj ured CST injured CRP by diffusion tensor tractography (DTT). patient, 38-year-old man, presented severe paralysis right upper lower extremities due to spontaneous ICH left corona radiata basal ganglia. When he started...

Many diffusion tensor imaging (DTI) studies have described the effects of hydrocephalus on periventricular white matter in patients with normal pressure hydrocephalus. However, little is known about following stroke. We investigated effect after an intracerebral hemorrhage (ICH) using DTI.Fourteen ICH and hydrocephalus, 17 age- sex-matched control subjects were recruited. DTI parameters estimated six regions interest (ROIs) matter: anterior corona radiata, posterior genu corpus callosum,...