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...

<h3>BACKGROUND AND PURPOSE:</h3> Little is known about differences in corticospinal tract fibers according to cerebral origin. Using diffusion tensor tractography, we attempted investigate the characteristics of CST origin human brain. <h3>MATERIALS METHODS:</h3> Thirty-six healthy subjects were recruited for this study. A 1.5T Gyroscan Intera system was used acquisition DTI. CSTs reconstructed by selection passing through seed and target ROIs: ROIs, area at pontomedullary junction; primary...

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),...

Objective To describe a hand-stretching device that was developed for the management of hand spasticity in chronic hemiparetic stroke patients, and effects this on spasticity. Methods Fifteen patients with finger flexor were recruited randomly assigned to an intervention group (8 patients) or control (7 patients). The stretching consists resting splint, thumb stretcher, frame. In use, stretched state maintained 10 minutes per exercise session, performed twice daily 4 weeks. Spasticity...

Background: Little is known about injury of the corticospinal tract (CST) in patients with mild traumatic brain (TBI). This study reports on TBI who showed axonal CST sub-cortical white matter, as demonstrated by diffusion tensor tractography (DTT).Methods: Four complained motor weakness and had DTT parameters within normal range, including fractional anisotropy, apparent coefficient fibre number CST, 10 control subjects were recruited for this study.Results: All four partial tearing CSTs a...

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...

Objectives: To advance development of rehabilitation robots, the conditions to induce appropriate brain activation during performed by robots should be optimized, based on concept plasticity. In this study, we examined differences in cortical according speed passive wrist movements a robot. Methods: Twenty three normal subjects participated study. Passive right were robot at different speeds: 0.25 Hz; slow, 0.5Hz; moderate and 0.75 fast. We used functional near-infrared spectroscopy measure...

To report on a patient found to have injury of the spinothalamic tract diffusion tensor tractography following traumatic brain injury.A 29-year-old male with head trauma resulting from pedestrian car accident presented pain in multiple areas (both subscapular areas, posterior and neck, both upper trapezius right arm leg). His had not improved various types conservative management.Evaluations (conventional magnetic resonance imaging, electromyography, whole spine imaging), performed 2 years...

We investigated the distribution of cortical origin corticoreticular pathway (CRP) in human brain. Forty normal subjects were recruited and CRPs from four areas reconstructed. The first area CRP was premotor cortex next primary motor cortex. Although fibers also originated somatosensory prefrontal cortex, they occupied smallest portion among regions interest.

There are known limitations of conventional computed tomography and magnetic resonance imaging in detecting neural injury patients with mild traumatic brain (TBI). Diffusion tensor (DTI) provides a method to further assess cerebral this patient population. We report 2 TBI who showed the optic radiation (OR) as demonstrated by DTI.Two complained visual field loss after 9 age-matched normal control subjects were recruited for study. Peripheral defects detected automated perimetry both...

Diffusion tensor imaging (DTI) allows to isolate the corticospinal tract (CST) area from adjacent structures. Using DTI, we investigated characteristics of CST areas according pontine level in normal human brain. We recruited 33 healthy subjects and DTIs were acquired using a sensitivity-encoding head coil on 1.5-T Philips Gyroscan Intera. measured size fractional anisotropy (FA) value at upper, middle, lower pons. The pons was smaller than those mid-pons upper pons, smallerthan that...

The recent development of diffusion tensor imaging (DTI) allows visualization and estimation the uncinate fasciculus (UF). We investigated injuries UF in patients with diffuse axonal injury (DAI) who showed no specific lesions except for DAI on conventional brain MRI. Twenty-one chronic DAI, 21 age- sex-matched normal control subjects were recruited this study. Diffusion images acquired using a sensitivity-encoding head coil at 1.5 T was reconstructed DTI-Studio software. Fractional...

We investigated differences of the medial lemniscus and its thalamocortical pathway (ML), spinothalamic tract (STT) according to cortical termination areas. found that ML STT terminated in motor cortex somatosensory cortex. The may be closely related for planning execution, while cerebral function execution.

Objectives: The lateral corticospinal tract (CST) is one of the most important neuronal pathways that mediate voluntary movements in human brain. However, little known about role CST on gait. We attempted to investigate

Background: This study reports on a patient with traumatic brain injury (TBI) thalamic lesion in the ventroposterolateral nucleus which was demonstrated by diffusion tensor tractography (DTT) for spinothalamic tract and its thalamocortical pathway (STP).

&lt;b&gt;&lt;i&gt;Objectives:&lt;/i&gt;&lt;/b&gt; Little is known about optic radiation (OR) injury in intracerebral hemorrhage (ICH). We attempted to investigate OR patients with ICH by diffusion tensor imaging (DTI). &lt;b&gt;&lt;i&gt;Methods:&lt;/i&gt;&lt;/b&gt; Forty-three consecutive putaminal and 40 normal healthy control subjects were recruited. DTI data acquired at the beginning of rehabilitation (average 34 days after onset). DTI-Studio software was used reconstruct OR. Fractional...

Objectives: Little is known about differences of cortical activation according to body location. We attempted compare brain patterns by somatosensory stimulation on the palm and dorsum hand, using functional magnetic resonance imaging (fMRI).Method: recruited 15 healthy right-handed volunteers for this study. fMRI was performed during touch a rubber brush an area same size or hand. Regions interest (ROIs) were drawn at primary sensory–motor cortex (SM1), posterior parietal cortex, secondary...