Dong-Wan Kang

Background and Purpose— The susceptibility vessel sign (SVS) is a hypointense signal visualized because of the susceptibility effect of thrombi, sensitively detected on susceptibility-weighted magnetic resonance imaging. The relationship of SVS parameters with the stroke subtype and recanalization status after endovascular treatment remains uncertain. Methods— The data from 89 patients with acute stroke caused by anterior circulation infarcts who underwent susceptibility-weighted magnetic resona

Intracerebral hemorrhage (ICH) is a devastating subtype of stroke with a high mortality rate, for which there currently is no effective treatment. A perihematomal edema caused by an intense inflammatory reaction is more deleterious than the hematoma itself and can result in neurological deterioration and death. Ceria nanoparticles (CeNPs) are potent free radical scavengers with potential for biomedical applications. As oxidative stress plays a major role in post-ICH inflammation, we hypothesized

Intracranial arterial disease (ICAD) is a heterogeneous condition characterized by distinct pathologies, including atherosclerosis. Advances in magnetic resonance technology have enabled the visualization of intracranial arteries using high-resolution vessel wall imaging (HR-VWI). This review summarizes the anatomical, embryological, and histological differences between the intracranial and extracranial arteries. Next, we review the heterogeneous pathophysiology of ICAD, including atherosclerosi

Radial MPLD is effective for analyzing eyelid contour. In our study, lateral flare of upper lid retraction and flat appearance of lower lid retraction were distinct characteristics in patients with TED. Consideration of eyelid contour in patients with TED may improve corrective surgery for eyelid retraction.

Artificial nerve guidance conduits (aNGCs) prepared from polymer scaffolds and carbon nanotubes (CNTs) possess unique chemical and physical properties, and have been widely used in preclinical trials to promote neuronal differentiation and growth. However, there have been only a few reports on the clinical applicability of CNT sheets for proliferation of primary neuronal cells due to safety concerns. The present study assesses the ability and potential applicability of multiwalled CNTs (MWNTs) c

In comprising the lacrimal sac fossa, the maxillary bone accounted for a bigger proportion than the lacrimal bone. Male maxillary bone thickness was greater than female thickness. The authors also observed that maxillary bone thickness increased toward the upper areas of the lacrimal sac fossa and with increasing subject age. Understanding the form and variation of a normal lacrimal sac fossa is helpful for preparing for a successful osteotomy with endoscopic dacryocystorhinostomy.

Background and purpose Multiple attempts at intracranial hemorrhage (ICH) detection using deep-learning techniques have been plagued by clinical failures. We aimed to compare the performance of a deep-learning algorithm for ICH detection trained on strongly and weakly annotated datasets, and to assess whether a weighted ensemble model that integrates separate models trained using datasets with different ICH improves performance. Methods We used brain CT scans from the Radiological Society of Nor

PURPOSE: Intracranial hemorrhage (ICH) requires urgent treatment, and accurate and timely diagnosis is essential for improving outcomes. This pivotal clinical trial aimed to validate a deep learning algorithm for ICH detection and assess its clinical utility through a reader performance test. METHODS: Retrospective CT scans from patients with and without ICH were collected from a tertiary hospital. Two experts evaluated all scans, with a third expert reviewing disagreements for the final diagnos

CRAO-E⁺ was found to be associated with a better outcome. CRAO-E⁺ may be more prone to recanalization than that CRAO-E^-.

BACKGROUND: We sought to investigate the chorioretinal thickness and retinal pigment epithelial (RPE) degenerative features of eyes with early age-related macular degeneration (AMD) and subretinal drusenoid deposits (SDDs) according to the presence of macular neovascularization (MNV) in the fellow eyes. METHODS: We classified 70 eyes into two groups of 47 eyes with non-neovascular AMD and 23 eyes with neovascular AMD, respectively, according to the presence of MNV in the fellow eyes. The mean ma

Ocular cranial nerve palsy of presumed ischemic origin (OCNPi) is the most common type of ocular cranial nerve palsy (OCNP) in patients aged ≥ 50 years; however, no definite diagnostic test exists. As diagnostic criteria include clinical improvement, diagnoses are often delayed. Diagnostic biomarkers for OCNPi are required; we hypothesized that cerebral small vessel disease is associated with OCNPi. We analyzed 646 consecutive patients aged ≥ 50 years with isolated unilateral OCNP who underwent

문 형태로 신생아를 포함한 어떤 연령대에서도 발생할 수 있으 며, 전체 뇌졸중의 0.5-1%를 차지한다. 최근 급성 혹은 아급성 두통과 새로 발생한 발작(seizure) 환자에서의 자기공명영상 등 영상 진단 장치의 사용이 늘어나면서, 뇌정맥혈전증으로 진단되 는 환자 수가 늘어나고 있다. 뇌정맥혈전증의 위험인자는 크게 유전적 위험인자와 후천적 위험인자로 분류되며, 전자는 C단백 질결핍(protein C deficiency), S단백질결핍(protein S deficiency) 을 포함한 혈전유발성 경향, 결체조직질환 등이 있고, 후자는 수 술, 감염, 외상, 임신, 산욕기, 암, 외인성 호르몬, 약물, 항인지질 항체증후군(antiphospholipid antibody syndrome) 등이 있다. 저자들은 다른 유발 요인 없이 finasteride 복용에 의해 유발 된 뇌정맥혈전증 환자를 경험하여 보고하고자 한다.

연구 목적: 대한치과보철학회지의 최근 5년간 게재된 논문 중에서 통계 방법이 사용된 논문의 빈도를 조사하고 통계 방법의 종류 및 오류의 유형과 빈도를 살펴 보고 오류별 적절한 통계 방법을 제시하고 통계분석 가이드라인을 개발하여 대한치과보철학회지의 학술적 발전에 기여하고자 한다. 연구 재료 및 방법: 2006년부...