방재승 교수

BACKGROUND: Up-to-date, quantitative angiographic measurement of revascularization extent after bypass surgery has not been reported. OBJECTIVE: To measure the extent of angiographic revascularization quantitatively 6 months postoperatively with the OSIRIS program (University Hospital of Geneva, version 3.1). METHODS: A total of 75 bypass procedures were performed in 65 consecutive adult moyamoya disease patients, and 71 bypass surgeries in 61 adult moyamoya disease patients were studied 6 month

With the development of 3D displays, user's eye fatigue has been an important issue when viewing these displays. There have been previous studies conducted on eye fatigue related to 3D display use, however, most of these have employed a limited number of modalities for measurements, such as electroencephalograms (EEGs), biomedical signals, and eye responses. In this paper, we propose a new assessment of eye fatigue related to 3D display use based on multimodal measurements. compared to previous

We present a new computer interface that combines gaze tracking with brainwave measurements in an integrated head-mounted device. This interface is novel in the following four ways compared to previous works. First, because the system is designed as a single head-mounted device, both the brainwave data and eye images for gaze tracking can be acquired by wearing only one device that includes a sensing node and an eye image-capturing camera. Second, the noise in the brainwave data caused by blinki

Electroencephalogram (EEG)-based brain-computer interfaces (BCIs) have been used in various applications, including human-computer interfaces, diagnosis of brain diseases, and measurement of cognitive status. However, EEG signals can be contaminated with noise caused by user's head movements. Therefore, we propose a new method that combines an EEG acquisition device and a frontal viewing camera to isolate and exclude the sections of EEG data containing these noises. This method is novel in the f

All-cause mortality at 7 years was similar between the elective surgical clipping and endovascular coiling groups in patients with unruptured aneurysms who had no history of subarachnoid hemorrhage due to aneurysm rupture.

<h3>BACKGROUND AND PURPOSE:</h3> Stents have been reported as an option for improvement of the recanalization rate in AIS. The authors have also used intracranial stents in failed cases of IAT with pharmacologic and mechanical methods since 2004. We retrospectively reviewed our cases of intracranial stent use for IAT of AIS for recanalization and as a rescue procedure for iatrogenic intracranial vascular dissection during IAT. <h3>MATERIALS AND METHODS:</h3> Thirty-two patients, who were diagnos

With the rapid increase of 3-dimensional (3D) content, considerable research related to the 3D human factor has been undertaken for quantitatively evaluating visual discomfort, including eye fatigue and dizziness, caused by viewing 3D content. Various modalities such as electroencephalograms (EEGs), biomedical signals, and eye responses have been investigated. However, the majority of the previous research has analyzed each modality separately to measure user eye fatigue. This cannot guarantee t

In patients with sudden sensorineural hearing loss, the latency of wave 1 of the auditory brainstem response was significantly increased and was related to prognosis.