A5035515555- Advanced Neuroimaging Techniques and Applications
- Intracranial Aneurysms: Treatment and Complications
- Traumatic Brain Injury Research
- Traumatic Brain Injury and Neurovascular Disturbances
- Cerebrovascular and Carotid Artery Diseases
- Cerebral Palsy and Movement Disorders
- Neurosurgical Procedures and Complications
- Vascular Malformations Diagnosis and Treatment
- Cerebrospinal fluid and hydrocephalus
- Intracerebral and Subarachnoid Hemorrhage Research
- Acute Ischemic Stroke Management
- Meningioma and schwannoma management
- Stroke Rehabilitation and Recovery
- Spinal Dysraphism and Malformations
- Transcranial Magnetic Stimulation Studies
- Neurofibromatosis and Schwannoma Cases
- Functional Brain Connectivity Studies
- Moyamoya disease diagnosis and treatment
- Advanced MRI Techniques and Applications
- Ophthalmology and Eye Disorders
- Peripheral Nerve Disorders
- Trigeminal Neuralgia and Treatments
- Musculoskeletal synovial abnormalities and treatments
- Anesthesia and Neurotoxicity Research
- EEG and Brain-Computer Interfaces
Yeungnam University Medical Center
2013-2025
Yeungnam University
2013-2024
Yeungnam University College
2007-2019
Daegu University
2013-2019
Herrick District Library
2018
Creative Commons
2015-2017
National Research Foundation of Korea
2015-2017
Foundation for Physical Medicine and Rehabilitation
2017
Sun Moon University
2015
Christie's
2015
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...
The primary objective of this study was to perform a retrospective evaluation the radiological and pathological features influencing formation peritumoral brain edema (PTBE) in meningiomas.The magnetic resonance imaging (MRI) pathology data for 86 patients with meningiomas, who underwent surgery at our institution between September 2003 March 2009, were examined. We evaluated predictive factors related including gender, tumor volume, shape margin, presence arachnoid plane, signal intensity...
Patients with severe stroke due to acute large cerebral artery occlusion are likely be severely disabled or dead without timely reperfusion. Previously, intravenous tissue plasminogen activator (IV-TPA) within 4.5 hours after onset was the only proven therapy, but IV-TPA alone does not sufficiently improve outcome of patients occlusion. With introduction advanced endovascular which enables more fast and successful recanalization, recent randomized trials consecutively consistently...
We investigated the relationship between injury of spino-thalamo-cortical pathway (STP) and central post-stroke pain (CPSP) in patients with intracerebral hemorrhage, using diffusion tensor tractography (DTT).30 consecutive chronic patients, whom integrity STP medial lemnisco-thalamo-cortical (MLP) were spared both hemispheres, recruited. classified into two groups according to presence CPSP. DTTs obtained FMRIB Software Library. Fractional anisotropy (FA), mean diffusivity (MD), tract...
<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)....
Clarification of the clinical characteristics motor function in stroke patients with complete corticospinal tract (CST) injury would be importance rehabilitation. However, this topic has not been clearly elucidated. We conducted an investigation chronic hemiparetic CST injury, as confirmed by transcranial magnetic stimulation and diffusion tensor imaging. Forty-one consecutive who showed absence evoked potential muscles upper lower extremities upon whom integrity discontinued around lesion...
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...
Objective The increased use of bypass surgery in the treatment ischemic cerebrovascular diseases requires a better understanding superficial temporal artery (STA) anatomy. This study is to describe gross anatomy STA adult Korean population with respect cranial and provide basic anatomic data for surgery. Methods evaluated retrospectively 35 patients who visited neurosurgery department at single institution. For each patient, both left right (70 vessels) were by 3-dimensional computed...
<i>Objectives:</i> Little is known about the prevalence of central poststroke pain (CPSP) according to integrity spino-thalamo-cortical pathway (STP). Using diffusion tensor tractography, we investigated CPSP STP in patients with intracerebral hemorrhage. <i>Methods:</i> We recruited 52 consecutive chronic and 10 normal control subjects. Patients were classified into two groups preservation STP. Each group was divided subgroups presence CPSP....
Patients with negative initial digital subtraction angiography (DSA) are at significant risk for re-bleeding, which can lead to severe disability and death. The purpose of this study was evaluate the necessity repeat DSA in subgroups patients subarachnoid hemorrhage (SAH) DSA.A total 904 spontaneous SAH were admitted our department between May 2005 2012. Twenty eight selected inclusion because repeated performed due etiology could not be demonstrated on DSA. According pattern computed...
OBJECTIVE The optimal treatment for underlying intracranial atherosclerosis (ICAS) in patients with emergent large-vessel occlusion (ELVO) remains unclear. Reocclusion during endovascular (EVT) occurs frequently (57.1%–77.3%) after initial recanalization stent retriever (SR) thrombectomy ICAS-related ELVO. This study aimed to compare outcomes of the strategy first stenting without retrieval (FRESH) using Solitaire FR versus SR METHODS authors retrospectively reviewed consecutive acute...
Antiplatelet therapy, where regimens are tailored based on platelet function testing, has been introduced into neurointerventional surgery. This nationwide registry study evaluated the effect and safety of antiplatelet therapy in stent assisted coiling for unruptured aneurysms compared with conventional using a standard regimen.This enrolled 1686 patients 44 participating centers who received between January 1, 2019 December 31, 2019. The regimen (aspirin clopidogrel) was used all group...
We investigated the cortical activation changes associated with motor recovery in six hemiparetic patients precentral knob infarct. fMRI at 1.5 T finger movements a fixed rate was performed twice each patient, 1 and 6 months after stroke onset. From images obtained, LI (laterality index) for primary sensorimotor cortex (SM1) calculated to measure degree of activity concentration contralateral hemisphere. Our results showed that greater improvement function scores significantly correlated...
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,...
Objective Few studies have reported on injury of the mammillothalamic tract (MTT) in patients with stroke. However, no study subarachnoid haemorrhage (SAH) has been reported. Using diffusion tensor tractography, we attempted to investigate MTT SAH. Methods We recruited 16 SAH and 15 control participants. DTI was obtained at 5.7±1.5 weeks after onset reconstruction performed using probabilistic tractography method. The fractional anisotropy (FA) value number Mini-Mental State Examination...
The surgical approach is typically similar to those used for other supraclinoid internal carotid artery (ICA) lesions. However, the clipping of this aneurysm complicated and as a result, can result in postoperative ischemic complications. We studied clarify clip-induced complication risk AChA get benefits helping decision making.We retrospectively investigated 53 cases (4.0%) AchA treated surgically. divided 3 subtype according origin aneurysmal neck; A type originating from itself, J...
Objectives: Little is known about the usefulness of diffusion tensor tractography (DTT) findings corticospinal tract (CST) in terms predicting motor outcome after thalamic hemorrhage. We investigated predictive value DTT for patients with Methods: Twenty-one were recruited; DTTs obtained within 7–30 d determined fractional anisotropies (FAs), numbers, and lengths CSTs calculated affected CST versus unaffected ratios each value. In addition, classified into two groups; a type A group, which...
After rupture of an anterior communicating artery (ACoA) aneurysm, the cingulum and fornix can be vulnerable to injury. However, very little is known about this topic.To investigate injuries in patients with ACoA aneurysm diffusion tensor tractography.Eleven consecutive 11 age- sex-matched normal control subjects were recruited. Diffusion imaging was scanned at average 54.1 days (range, 29-97 days) after onset rupture.We found that 6 (54.5%) 7 (63.6%) revealed no trajectory fornical body on...
No study on the characteristics of injury corticospinal tract (CST) or corticoreticular pathway (CRP) in patients with putaminal hemorrhage has been reported. In this study, using diffusion tensor tractography, we attempted to investigate CST and CRP hemiparetic hemorrhage. Fifty seven consecutive 57 healthy control subjects were recruited for study. Diffusion imaging was performed during early period (8 ~ 30 days) after onset. We defined terms configuration (discontinuation a neural tract)...
We report a case of arachnoid cyst in which subdural hematoma and intracystic hemorrhage developed spontaneously. Usually, cysts are asymptomatic, but can become symptomatic because enlargement or hemorrhage, often after mild head trauma. Although they sometimes combined with hematoma, has rarely been observed. Our patient had simultaneous without evidence
Premorbid demographic backgrounds of injured individuals are likely to reflect more accurately the status patients with traumatic brian injury (TBI) than clinical factors. However, concrete study about relationship between factors and neurocognitive function in TBI has not been reported. The object this was evaluate effect premorbid on recovery following TBI.From July 1998 February 2007, 293 (male: 228, female: 65) a history head injury, who had recovered from acute phase, were selected our...