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Differential Diagnosis and Treatment Outcomes of Tumors at the Carotid Bifurcation
Jihee Kang,허선희,박양진,김동익,김영욱 대한혈관외과학회 2020 Vascular Specialist International Vol.36 No.3
Purpose: Primary tumor at the carotid bifurcation is uncommon, which includes paraganglioma, schwannoma, and lymphoma. Due to their rarity, characteristics of these tumors and problems related to their surgical treatment have not been well known. We tried to elucidate different clinical characteristics and surgical complications of these tumors. Materials and Methods: We retrospectively reviewed 21 patients with carotid bifurcation tumor from the Vascular Surgery division of a Korean tertiary institution from 1995 to 2018. We investigated patients’ demographics and clinical features, image characteristics, treatment details, and surgical outcomes. Results: During the period from January 1995 to January 2018, we experienced surgical resections of 21 carotid bifurcation tumors which included 16 (76.2%) paragangliomas and 5 (23.8%) schwannomas. The most common clinical feature was a non-tender cervical mass. According to Shamblin classification, paragangliomas were classified into class II in 68.8% and class III in 25.0%. On the preoperative computed tomography images, all the paragangliomas showed characteristic splaying of the carotid bifurcation and hypervascularity of the tumors. On the contrary, all the schwannomas showed hypovascularity and splaying sign in 60%. Surgical complications related to cervical nerve injury developed in 50% and 60% of patients with Shamblin class III paraganglioma and schwannoma, respectively. During the mean follow-up period of 25 months (range, 1 to 163 months), distant metastases developed in 2 (12.5%) of paraganglioma patients. Conclusion: Neurologic complications were more common after surgical resection of Shamblin class III paraganglioma and schwannoma. For patients with paraganglioma, postoperative periodic follow-up examination is advised to detect distant metastasis.
Kang, Jihee Lee,Moon, Changsuk,Lee, Hui Su,Lee, Hae Won,Park, Eun-Mi,Kim, Hee Sun,Castranova, Vincent Taylor Francis 2008 Journal of toxicology and environmental health. Pa Vol.71 No.8
<P>Ultrafine or fine titanium dioxide (TiO(2)) particles are widely used in the production of white pigments, for sunscreens, and in cleanup techniques. However, currently knowledge is deficient concerning cellular responses to these particles. The study evaluated and compared the biological activity of ultrafine and fine TiO(2) particles in RAW 264.7 macrophages according to an oxidative stress paradigm. In vitro exposure of macrophages to ultrafine or fine TiO(2) in the range of 0.5-200 microg/ml did not significantly alter cell viability. However, ultrafine TiO(2) enhanced intracellular generation of reactive oxygen species (ROS) to a greater extent than fine TiO(2) at each exposure concentration. Ultrafine TiO(2) induced ERK1/2 activation in a concentration-dependent manner, while the fine TiO(2)-induced changes were minimal. Phosphorylation of ERK1/2 occurred following 10 min exposure to higher concentrations of ultrafine TiO(2) (> or = 25 microg/ml). Similarly, ultrafine TiO(2) exposure significantly enhanced tumor necrosis factor (TNF)-alpha and macrophage inflammatory protein (MIP)-2 secretion in a concentration-dependent manner, and its potency was higher than fine TiO(2). These findings suggest that when exposure concentration is based upon equivalent mass, ultrafine TiO(2) exerts greater biological activity as measured by ROS generation, ERK 1/2 activation, and proinflammatory mediator secretion in RAW 264.7 macrophages than fine TiO(2).</P>
Jihee Kang,Shin-Young Woo,Shin-Seok Yang,Yang-Jin Park,Dong-Ik Kim,Pyoung Jeon,Gyeong-Moon Kim,Young-Wook Kim 대한외과학회 2022 Annals of Surgical Treatment and Research(ASRT) Vol.103 No.2
Purpose: Exposure to ionizing radiation over the head and neck accelerates atherosclerotic changes in the carotid arteries. Owing to the characteristics of radiation-induced carotid stenosis (RICS), the results regarding the optimal revascularization method for RICS vary. This study compared treatment outcomes between carotid endarterectomy (CEA) and carotid artery stenting (CAS) in RICS. Methods: This was a single-center retrospective review of consecutive patients who underwent CEA or CAS for carotid stenosis. RICS was defined as carotid stenosis (>50%) with the prior neck irradiation for cancer treatment on either side. For the analyses, demographics, comorbid conditions, carotid lesion characteristics based on imaging studies, surgical complications, neurologic outcomes, and mortality during the follow-up period were reviewed. To compare CEA and CAS results in RICS, a 1:1 propensity score matching was applied. Results: Between November 1994 and June 2021, 43 patients with RICS and 2,407 patients with non-RICS underwent carotid revascularization with CEA or CAS. RICS had fewer atherosclerotic risk factors and more frequent severe carotid stenosis and contralateral carotid occlusions than non-RICS. CAS was more commonly performed than CEA (22.9% . 77.1%) for RICS due to more frequent unfavorable carotid anatomy (0 . 16.2%). Procedure-related complications were more common in the CEA than in the CAS. However, there was no significant difference in neurologic outcomes and restenosis rates between CEA and CAS in RICS. Conclusion: Considering its lesion characteristics and cumulative incidence, RICS requires more attention than non-RICS. Although CAS has broader indications for RICS, CEA has shown acceptable results if selectively performed.
미술적 창의성의 구성 요소 범주화 및 그 교육적 의미 고찰
강지희(Jihee KANG) 한국조형교육학회 2022 造形敎育 Vol.- No.84
본 연구는 미술적 창의성(artistic creativity)의 구성 요소를 조작가능한 형태로 범주화하는 것을 그 목적으로 한다. 구성 요소 추출을 위하여 미술적 창의성을 다룬 논문 17건을 탐색 및 분석한 후 능력 구분에 기반하여 2개의 능력 영역과 14개의 하위 구성 요소를 범주화하였다. 분석 결과 미술적 창의성의 구성 요소는 인지·표현 능력 영역에 직관, 상상력, 사고양식의 전환, 연결 능력, 시각화 능력, 독창성, 적절성, 유창성, 융통성의 9개 요소가, 정의적 능력 영역에 감수성, 몰입, 자율성, 호기심, 개방성의 5개 요소가 도출되었다. 미술적 창의성의 구성 요소는 일반적인 창의성 문헌에서 언급되는 요소들과 유사 하였으나, ‘시각화 능력’은 미술 영역에 고유한 능력으로 나타났다. 나아가 이들 구성 요소를 이용하여 미술 교과에서 창의성을 평가하는 항목으로 본 요소를 이용할 수 있음을 제안하였으며, 타 영역 창의성과의 비교를 통해 융합교육에서 미술교육이 창의성 교육에 기여할 수 있는 지점을 검토하고, 인공지능 시대 미술 창의성의 의미 변화 가능성을 고찰하였다. This paper aims to find factors associated with artistic creativity as an operational definition. To this end, the author explored and analyzed seventeen articles dealing with artistic creativity. The factors categorized into two main domains and fourteen subcategories. Cognitive and expressive domains consist of nine factors: intuition, imagination, shifting between modes of thinking, connecting skill, originality, appropriateness, fluency, flexibility, and visualization. An affective domain consists of five factors: sensitivity, flow, autonomy, curiosity, and openness. Although factors of artistic creativity were similar to those of general creativity, “visualization” was a unique feature in the art domain. The author suggests that these factors can be used to assess creativity in art class, considers the possibility of art education’s contribution to creativity improvement in convergence education, and thinks about the change of the meaning of creativity in the era of artificial intelligence.
Design and Implementation of Ontology for Identifying of Maladjustment Soldiers
Jihee Nam(남지희),Dongsu Kang(강동수) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.10
군 내 복무 부적응 병사들로 인한 병영사고는 비전투력 손실에 따른 전투력 약화, 대군 신뢰도 저하 등 많은 문제를 유발한다. 군은 복무 부적응 병사들을 사전에 식별하고 사고를 예방하기 위한 심리검사체계로 신인성검사를 개발, 적용하고 있다. 본 논문에서는 사고 우려자를 식별하기 위해 부적응 병사의 행동 패턴과 증상을 온톨로지로 구현하기 위한 온톨로지 설계 프로세스를 제안한다. 온톨로지 설계 프로세스에 따라 설계한 온톨로지의 성능 평가 결과, 적합성 및 효과성이 검증되었다. 온톨로지 설계를 통해 부적응 병사를 식별하기 위한 군 내 객관적인 기준을 제시하고 사고 우려자에 관한 정보를 공유함으로써 사고 예방에 효과적인 역할을 할 것으로 기대된다. Inadequate military soldiers cause military fatigue and rejection such as reduced confidence in the military and combat power. The military developed and applied a self-adopting test as a psychological test system to identify soldiers who are not fit to serve in the military in advance and prevent accidents. In this paper, we propose the ontology design process to be used for identifying accident concerns and implement the behavioral patterns and symptoms of maladjustment soldiers as ontology. The ontology design process is validated consistency and suitability as a result of the performance evaluation of ontology implemented. Through ontology design for identifying maladjustment soldiers, it is expected to play an effective role in preventing accidents by providing objective criteria and sharing of information on accident concerns.
( Jihee Yeon ),( Ye Won Jung ),( Shin Seok Yang ),( Byung Hun Kang ),( Mina Lee ),( Young Bok Ko ),( Jung Bo Yang ),( Ki Hwan Lee ),( Heon Jong Yoo ) 대한산부인과학회 2017 Obstetrics & Gynecology Science Vol.60 No.2
Compartment syndrome is a clinical condition associated with decreased blood circulation that can lead to swelling of tissue in limited space. Several factors including lithotomy position, prolonged surgery, intermittent pneumatic compressor, and reperfusion after treatment of arterial thrombosis may contribute to compartment syndrome. However, compartment syndrome rarely occurs after gynecologic surgery. In this case, the patient was diagnosed as compartment syndrome due to reperfusion injury after treatment of arterial thrombosis, which occurred after laparoscopic radical hysterectomy and pelvic lymph node dissection for cervical cancer. Despite its rarity, prevention and identifying the risk factors of complication should be performed perioperatively; furthermore, gynecologist should be aware of the possibility of complications.
Large‐Scale, Ultrapliable, and Free‐Standing Nanomembranes
Kang, Edward,Ryoo, Jihee,Jeong, Gi Seok,Choi, Yoon Young,Jeong, Seung Min,Ju, Jongil,Chung, Seok,Takayama, Shuichi,Lee, Sang‐,Hoon WILEY‐VCH Verlag 2013 ADVANCED MATERIALS Vol.25 No.15
<P><B>The creation and characterization of large‐area ultrathin highly pliable free‐standing PDMS membranes</B> and their application to the study of cellular epithelia is described. The ultra‐thin membranes permitted the straight forward calculation of cell monolayer moduli, derived from measured stress–strain curves. These measurements allowed the unprecedented detection of cellular‐level injury in the epithelia caused by the rupture of cell–cell tight junctions in response to stretching.</P>