(1) Background: Unruptured intracranial aneurysm (UIA) occurs in 1-2% of the population and is being increasingly detected. Patients with UIA are treated with close observation, endovascular coiling or surgical clipping. The proportion of endovascular coiling has been rising.
View Article and Find Full Text PDFNon-invasive transcranial direct current stimulation (tDCS), a promising stimulation tool to modulate a wide range of brain disorders, has major limitations, such as poor cortical stimulation intensity and focality. We designed a novel electrode for tDCS by conjugating a needle to a conventional ring-based high-definition (HD) electrode to enhance cortical stimulation efficacy. HD-tDCS (43 µA/mm, charge density 51.
View Article and Find Full Text PDFTo minimize background interference in electrochemical enzymatic biosensors employing electron mediators, it is essential for the electrochemical oxidation of electroactive interfering species (ISs), such as ascorbic acid (AA), to proceed slowly, and for the redox reactions between electron mediators and ISs to occur at a low rate. In this study, we introduce a novel combination of a working electrode and an electron mediator that effectively mitigates interference effects. Compared to commonly used electrodes such as Au, glassy carbon, and indium tin oxide (ITO), boron-doped diamond (BDD) electrodes demonstrate significantly lower anodic current (i.
View Article and Find Full Text PDFRecently, we introduced a current limiter-based novel transcranial direct-current stimulation (tDCS) device that does not generate significant tDCS-induced electrical artifacts, thereby facilitating simultaneous electroencephalography (EEG) measurement during tDCS application. In this study, we investigated the neuromodulatory effect of the tDCS device using resting-state EEG data measured during tDCS application in terms of EEG power spectral densities (PSD) and brain network indices (clustering coefficient and path length). Resting-state EEG data were recorded from 10 healthy subjects during both eyes-open (EO) and eyes-closed (EC) states for each of five different conditions (baseline, sham, post-sham, tDCS, and post-tDCS).
View Article and Find Full Text PDFAutomatic age estimation using panoramic dental radiographic images is an important procedure for forensics and personal oral healthcare. The accuracies of the age estimation have increased recently with the advances in deep neural networks (DNN), but DNN requires large sizes of the labeled dataset which is not always available. This study examined whether a deep neural network is able to estimate tooth ages when precise age information is not given.
View Article and Find Full Text PDFJ Cerebrovasc Endovasc Neurosurg
March 2023
Subarachnoid hemorrhage (SAH) due to ruptured posterior cerebral artery (PCA) intracranial arterial dolichoectasia (IADE) is very rare. As these lesions are difficult to treat microsurgically, neurointervention is preferred because the dolichoectatic artery does not have a clear neck, and the surgical field of view was deep seated with the SAH. However, in some cases, neurointervention is difficult due to anatomical variation of the blood vessel to access the lesion.
View Article and Find Full Text PDFIn this study, we presented flat-topped coherent supercontinuum lasers with tunable repetition rates and programmable spectral bandwidths. Supercontinuum sources with ultra-broadband and high-repetition-rate coverage can be achieved by merging nonlinearly broadened electro-optic optical frequency combs with optical line-by-line spectrum shaping. Spectral bandwidth programming is implemented by iterative spectrum shaping and input power control of highly nonlinear stages, whereas repetition rate tuning is performed by modulation speed control in optical frequency combs.
View Article and Find Full Text PDFObjective: This study aimed to compare treatment outcomes between patients who received Stent-retriever thrombectomy (SRT) and those who received first stenting without retrieval (FRESH) for treating emergent large vessel occlusion (ELVO) due to underlying intracranial atherosclerotic stenosis (ICAS).
Methods: Consecutive patients with intracranial ELVO who underwent endovascular treatment at Yeungnam University Medical Center between January 2017 and December 2020 were retrospectively selected. ICAS-related ELVO was defined based on a remnant stenosis of > 70 % or a lesser degree of stenosis with a tendency toward reocclusion and/or flow impairment during endovascular treatment.
Recently, a therapeutic method to stimulate the suprahyoid muscle using peripheral magnetic stimulation for dysphagia rehabilitation has been reported. However, clinical evidence, application protocol, and intervention method remain unclear. Therefore, a systematic review of the published literature is needed.
View Article and Find Full Text PDFTranscranial direct current stimulation (tDCS) is a noninvasive brain stimulation technique that may enhance motor recovery after stroke. We performed a systematic review and meta-analysis to assess the efficacy of tDCS combined with rehabilitation on arm and hand function after stroke. Electronic databases were searched from their inception to September 2021.
View Article and Find Full Text PDFThe use of a conducting interlayer between separator and cathode is one of the most promising methods to trap lithium polysulfides (LiPSs) for enhancing the performance of lithium-sulfur (Li-S) batteries. Red phosphorus nanoparticles (RP )-coated carbon nanotube (CNT) film (RP @CF) is reported herein as a novel interlayer for Li-S batteries, which shows strong chemisorption of LiPSs, good flexibility, and excellent electric conductivity. A pulsed laser ablation method is engaged for the ultrafast production of RP of uniform morphology, which are deposited on the CNT film by a direct spinning method.
View Article and Find Full Text PDFObjective: The optimal treatment for underlying intracranial atherosclerosis (ICAS) in patients with emergent large-vessel occlusion (ELVO) remains unclear. Reocclusion during endovascular treatment (EVT) occurs frequently (57.1%-77.
View Article and Find Full Text PDFJ Cerebrovasc Endovasc Neurosurg
March 2021
Cavernous sinus (CS) lesion is hard to access by surgical approach. With the development of endovascular technique, neurointerventional therapy is an alternative modality for CS lesions. This endovascular technique has been widely used for the past decade, avoiding the risks associated with surgical treatment.
View Article and Find Full Text PDFBackground: Fractures of the anteromedial facet of the coronoid in posteromedial rotatory instability of the elbow are classified into 3 subtypes based on their location. The purpose of this study was to analyze the fracture morphology of anteromedial facet fractures in their 3 subtypes (anteromedial rim, anteromedial rim + tip, and anteromedial rim + sublime tubercle [±tip]).
Methods: Three-dimensional computed tomography remodeling was used to evaluate anteromedial facet fractures in a consecutive series of 40 patients, all of whom were affected by posteromedial rotatory instability of the elbow.
Background: It has recently been shown that suprahyoid muscle exercise using kinesiology taping (KT) increases the activation of the suprahyoid muscle in healthy adults, suggesting a potential therapeutic clinical exercise for dysphagia rehabilitation. This study investigated the effect of dysphagia rehabilitation using KT in stroke patients with dysphagia.
Methods: Thirty subjects in South Korea were enrolled in this prospective placebo-controlled double-blind study.
J Cerebrovasc Endovasc Neurosurg
March 2021
Objective: If the size of an intracranial aneurysm is below 3 mm, clinicians rarely treat them because of the low risk of rupture. But subarachnoid hemorrhage (SAH) due to the rupture of very small intracranial aneurysm (VSIA) (saccular aneurysm sized less than 3 mm) may lead to many critical neurological complications. So we analyzed the characteristics and differences between the ruptured VSIA group and the ruptured non-VSIA group.
View Article and Find Full Text PDF(1) Background: Occupational therapy (OT) practice has a unique perspective that addresses the complex needs of cancer survivors. Despite the expanded research and application of OT services using telehealth (TH) to promote clients' health and well-being, studies on OT services using TH for cancer survivors are rare. This study aimed to review the TH approaches in the scope of OT and the outcome of factors affecting occupational engagement in adult cancer survivors.
View Article and Find Full Text PDFThe purpose of this study was to investigate the effects of virtual reality-based cognitive-motor rehabilitation (VRCMR) on the rehabilitation motivation and cognitive function in older adults. This study enrolled 40 older adults with mild cognitive impairment (MCI), living in the community. The subjects were randomly assigned to a VRCMR group ( = 20) or a conventional cognitive rehabilitation (CCR) group ( = 20).
View Article and Find Full Text PDFBackground: Decompressive craniectomy (DC) is the last-resort surgical procedure to reduce intracranial pressure and prevent secondary brain injury. Additional resection of the temporalis muscle and fascia can achieve a higher extracranial herniation volume compared to the standard DC technique at the expense of cosmetic problems for the patients. Various methods have been used to augment temporal fossa hollowing.
View Article and Find Full Text PDFObjective: This study aimed to radiologically assess the relationship between the tilt angle of the bipolar radial head prostheses and radiocapitellar instability.
Methods: In this radiological study, 28 consecutive patients (13 females and 15 males: mean age=47 years and age range=23-77 years) who underwent cemented bipolar radial head arthroplasty (Judet CRF II) because of comminuted radial head fracture with elbow instability were retrospectively reviewed.
Results: There was excellent intra- and interobserver reliability for the measurements of the tilt angle and the radiocapitellar distance.
In daily living, people are challenged to focus on their goal while eliminating interferences. Specifically, this study investigated the pre-frontal cortex (PFC) activity while attention control was tested using the self-made color-word interference test (CWIT) with a functional near-infrared spectroscopy device (fNIRS). Among 11 healthy Korean university students, overall the highest scores were obtained in the congruent Korean condition 1 (CKC-1) and had the least vascular response (VR) as opposed to the incongruent Korean condition 2 (IKC-2).
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