디지털공제방사선촬영술을 이용한 치근단 흡수의 평가

허민석,이삼선,이경희,최항문,최순철,박태원 대한구강악안면방사선학회 2001 Imaging Science in Dentistry Vol.31 No.1

Purpose : This study was performed to compare the diagnostic ability of conventional intraoral radiographs with that of digital subtraction image and to assess the quantifying ability of digital subtraction image for simulated apical root resorption Materials and Methods : Conventional intraoral radiographs and digital images of ten sound maxillary central incisors and those with simulated apical root resorption were taken with varying horizontal and vertical angulations of the x-ray beam. The diagnostic accuracy to detect the lesion was evaluated on conventional intraoral radiographs and digital subtraction images by ROC analysis. The amount of simulated apical root resorption was also estimated on the reconstruction images by Emago□ and compared with actual amount of tooth loss using paired t-test. Results : The diagnostic accuracy of conventional intraoral radiographs to detect the apical root resorption was low(ROC area = 0.6446), and the sensitivity and the specificity of digital subtraction images were 100%, respectively. The calculated amounts of apical root resorption showed no statistically significant difference with the actual amounts of the lesion (p 〉 0.05). Conclusion : Digital subtraction radiography is powerful tool to detect the small apical root resorption, and quantitative analysis of small amounts of the lesion can be evaluated by digital subtraction radiography.(Korean J Oral Maxillofac Radiol 2001;31:51-5)

지루피부염의 약물치료

허민석,이양원 대한의사협회 2017 대한의사협회지 Vol.60 No.5

Seborrheic dermatitis is a chronic, recurrent papulosquamous skin disorder characterized by flaking of the skin, erythema, pruritus, and oily skin. It is a common dermatosis, with a prevalence of approximately 1% to 3% of the general population in the United States. The incidence of this skin disease has a bimodal distribution, with peaks noted in newborns and in adults between 30 and 60 years of age. In adults, it predominantly occurs over areas of the body with a high concentration of sebaceous glands. The etiology of this disease is thought to be an inflammatory response of the body to Malassezia yeasts. It is also related to abnormal sebum secretion, as well as a heightened immune response of the host. Based on the characteristic features of this inflammatory skin disease, the mainstays of treatment for seborrheic dermatitis are antifungals, corticosteroids, and immunomodulatory agents. The primary goal of therapy for seborrheic dermatitis is to manage acute symptoms, including pruritus, erythema, and scaling. Maintenance treatment is directed toward preventing the recurrence of acute exacerbations. Patients should be informed that seborrheic dermatitis is a chronic condition, with a tendency to recur despite proper treatment. Clinicians should offer suggestions about lifestyle modifications to avoid triggers and choose proper treatment options that ensure the patient’s safety.

단면 CT 영상을 이용한 무치악 하악 대구치부 잔존골의 형태 분석

이설미,허경회,이원진,허민석,이삼선,강태인,최순철 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.3

Purpose : The purpose of this study was to evaluate the morphologic features of posterior edentulous mandible for Korean patients using cross-sectional CT images. Materials and Methods : Computed tomographic cross-sectional views taken in 2004 and 2005 at Seoul National University Dental Hospital were analyzed by an oral and maxillofacial radiologist. Four indices were measured to meet the purpose of this study: 1) the horizontal distance between the alveolar crest and mandibular canal (Type), 2) the angle of the mandibular long axis (Angle), 3) the bucco-lingual location of mandibular canal, and 4) the depth of the submandibular fossa. The averages and standard deviations of the measurements were compared according to the location (the first and second molar area) and sex of the patients. Results : Statistically significant difference was found in Type, Angle, and submandibular fossa depth between the first and second molar area (P<0.05). However, there was no significant difference between men and women in any of the measured indices. Most of the mandibular canals were located in lingual side of posterior mandible. Conclusion : More care should be taken when an implant is installed on the mandibular second molar area.

<날개>의 삶의 空間과 그 意味

許珉碩 제주대학교 사범대학 국어교육과 국어교육연구회 1987 白鹿語文 Vol.2 No.-

인공적 인접면 치아우식증의 구내방사선사진과 디지털 영상의 진단능 평가

허민석,유동수,Heo Min-Suk,You Dong-Soo 대한영상치의학회 1994 Imaging Science in Dentistry Vol.24 No.2

Recently, the digital image was introduced into radiological image. The digital image has the power of contrast enhancement, histogram control, and other digitally enhancement. At the point of the resolution, periapical radiograph is superior to the digital image, but enhanced digital procedure improves the diagnostic ability of the digital image. The purpose of this study was to evaluate the diagnostic ability of artificial proximal caries in conventional radiographs, digital radiographs and enhanced digital radiographs (histogram specification). ROC (Receiver Operating Characteristic) analysis and paired t-test were used for the evaluation of detectability, and following results were acquired: 1. The mean ROC area of conventional radiographs was 0.9274. 2. The mean ROC area of unenhanced digital image was 0.9168. 3. The mean ROC area of enhanced digital image was 0.9339. 4. The diagnostic ability of three imaging methods was not significant difference(p>0.05). So, the digital images had similar diagnostic ability of artificial proximal caries to conventional radiographs. If properly enhanced digital image, it may be superior to conventional radiographs.

탈장소화되는 제주 ―4.3 다큐멘터리에서 재일제주인 여성의 재현을 중심으로

허민석 한국여성문학학회 2020 여성문학연구 Vol.51 No.-

This article sought to explore the possibility of rethinking Jeju 4.3 beyond the limitations of victim-centered remembering discourse. The victim-centered remembering discourse, represented by the sentence “We won’t forget,” presupposes the division of Jeju/land, past/present, and so on, thus entrenching the separation of the parties/third parties and making it impossible for the two to form a solidarity at the fundamental level. Therefore, this article takes issue with such temporal and spatial divisions, and suggests that Jeju 4.3 be thought on a spatial level in a more comprehensive sense. When we consider place as a continuum of time-space that mutates, we can accept the division of time-space implied by the remembering discourse as provisional, not essential. The concept of “deplacement” was asked to imagine an alternative approach to historical issues, describing a place as an event that is not divided by geological boundaries, but rather an intersection of different temporal and spatial contexts or an encounter of heterogeneous bodies. In particular, this article noted how Jeju Island Women in Japan are portrayed in documentaries about Jeju 4.3. Some documentaries borrowing linear time structure have the problem of recreating the lives of these women through narrative of losing homeland and anchoring their identities to victimhood. In this case, by receiving diaspora’s memory from the standpoint of the majority who can identity themselves as nation, it can ultimately have the effect of naturalizing the concept of homeland or nation-state as an unchanging place. However, Im Heung-soon’s film Things That Do Us Part(2019) is an attempt to deal with Jeju 4.3 beyond the temporal and spatial division separating Jeju/Land, Korea/Japan, past/present, and us/them. The film reminds us that we cannot intuit the memories inherent in a particular place, but rather rely on the past-image to temporarily rebuild the historicality of the place. It also captures contemporary Korea as a place where heterogeneous body-image collide and diverge, and finds that each of us can be connected through the fluidity and uncertainty of us. 이 글은 희생자 중심적 기억 담론의 한계를 넘어 제주 4.3을 재사유할 수 있는 가능성을 탐색해 보고자 했다. ‘잊지 않겠습니다’라는 문장으로 대표되는 희생자중심적 기억 담론은 제주/육지, 과거/현재 등의 시공간적 분할을 전제하는바, 당사자/제삼자의 분리를 고착시키며 근본적인 층위에서의 양자의 연대를 불가능하게 만든다. 따라서 이 글은 그러한 시공간적 분할을 문제 삼으며, 4.3을 더욱 포괄적인 의미의 공간적 차원에서 사유하기를 제안했다. 공간을 변이하는 시공간의 연속체로 간주할 때, 우리는 기억 담론이 내포하는 시공간의 분할을 본질적인것이 아닌 잠정적인 것으로 받아들일 수 있다. ‘탈장소’라는 개념은 장소를 지정학적 경계에 의해 구획되는 것이 아닌, 상이한 시공간적 맥락들의 교차 혹은 이질적 신체들의 마주침이라는 사건으로 설명하는바, 과거사 문제에 관한 대안적 접근법을 상상하기 위해 요청된다. 특히 이 글에서는 4.3 관련 다큐멘터리에서 재일제주인 여성이 그려지는 방식에 주목했다. 선형적인 시간성을 전제하는 기억서사의 구조를 차용한 다큐멘터리들은 재일제주인 여성들의 생애를 탈향의 서사를 통해 재현하며 결과적으로 그녀들의 정체성을 희생자다움에 정박시켜 버린다는 문제가 나타난다. 이 경우 스스로를 국민으로 정체화할 수 있는 다수자의 입장에서 디아스포라의 기억을 수취함으로써, 궁극적으로 고국 혹은 국민국가라는개념을 불변하는 장소로 자연화하는 효과를 낳는다. 그러나 임흥순의 영화 「우리를 갈라놓는 것들」(2019)은 제주/육지, 한국/일본, 과거/현재, 그리고 우리/그들 사이의 시공간적 분할을 넘어 제주 4.3을 다루고자 시도한 사례이다. 이 영화는 우리가 특정 공간에 내재된 기억을 직관할 수 없음을, 다만 우리는 오로지 과거–이미지에 의존해 장소의 역사성을 일시적으로 재구축할 수밖에 없음을 상기시킨다. 또한 영화는 이질적인 신체–이미지들이 충돌하고 분기하는 장소로서 동시대 한국을 포착하며, 우리라는 장소의 유동적임과 불확실함을 통해서 역설적으로 우리 각자가 연결될 수 있음을 발견한다.

Synergistic Effect of H1-Antihistamines on Topical Corticosteroids for Pruritus in Atopic Dermatitis: A Systematic Review and Meta-Analysis

허민석,최용범,안규중,이양원 대한피부과학회 2019 Annals of Dermatology Vol.31 No.4

Background: Although oral antihistamines (H1-histamine receptor antagonists) are the main treatment option for pruritus in general skin dermatosis, their effect in treating pruritus of atopic dermatitis (AD) has not yet been established. Objective: We conducted a systematic review and meta-analysis to evaluate the effectiveness of combined therapy of H1-antihistamines and topical steroids. Methods: We systematically searched MEDLINE, Embase, and CENTRAL databases for articles published from 1967 to 2015. We identified 1,206 studies and assessed their titles, abstract, and full-text. Random effects meta-analysis was used to calculate mean differences (MD) with 95% confidence intervals (CI). Results: Two studies satisfying the inclusion criteria of antihistamine therapy with mandatory topical steroid use were selected. Comparing antihistamine monotherapy with combination therapy, patients treated with the addition of antihistamine to topical corticosteroids showed a statistically significant clinical improvement (standard MD, −0.24; 95% CI, −0.42 to −0.05; p=0.01). Conclusion: H1-antihistamines may have a synergistic effect when combined with topical steroids by influencing various associative factors of chronic pruritus in AD.

낙동강 삼각주의 경관변화에 관한 연구

허민석 대한지리학회 2016 대한지리학회 학술대회논문집 Vol.2016 No.6

임플란트 치료 계획 수립을 위한 진단영상

허민석 대한치과의사협회 2007 대한치과의사협회지 Vol.45 No.6

의료산업에서의 정보기술 응용과 산업화: 현황과 전망

허민석 한국정보기술응용학회 2007 한국정보기술응용학회학술대회 Vol.2007 No.1