특발망막앞막의 유리체절제술과 백내장 및 수정체후낭절제동시수술 이후 시력과 황반두께의 변화

김다영(Da Yeong Kim),정성근(Sung Kun Chung),김기석(Ki Seok Kim),염지현(Jie Hyun Youm) 대한검안학회 2021 Annals of optometry and contact lens Vol.20 No.3

목적: 특발망막앞막에서 유리체절제술과 백내장 및 수정체후낭절제 동시수술 이후 시력과 황반두께의 변화를 확인하고자 하였다. 대상과 방법: 2012년 3월부터 2015년 1월까지 본원에서 백내장이 동반된 특발망막앞막으로 진단받고 유리체절제술과 백내장병합수술 및 수정체후낭원형절제술을 동시에 받은 57명의 57안을 대상으로 최대교정시력과 중심황반두께를 후향적으로 분석하였다. 결과: 술 전 평균 최대교정시력은 0.30 ± 0.23 logarithm of minimal angle of resolution (logMAR)였고 평균 중심황반두께는 442 ± 93 μm였다. 술 후 12개월까지 평균 최대교정시력은 0.08 ± 0.11 logMAR로 지속적인 호전을 보였고 중심황반두께는 386 ± 58 μm로 감소하였다. 결론: 특발망막앞막의 유리체절제술과 백내장 및 수정체후낭절제 병합수술 이후 황반의 기능 및 해부학적 회복은 술 후 12개월까지 지속될 수 있다. Purpose: To investigate the functional and structural recovery period of idiopathic epiretinal membranes after phacovitrectomy with posterior capsulectomy. Methods: From March 2012 to January 2015, 57 patients diagnosed with idiopathic epiretinal membranes with cataracts who underwent combined vitrectomy and cataract surgery with pars plana posterior capsulectomy were enrolled. The best-corrected visual acuity and central foveal thickness were analyzed retrospectively. Results: The average best-corrected visual acuity before surgery was 0.30 ± 0.23 logarithm of minimal angle of resolution (logMAR), and the mean central foveal thickness was 442 ± 93 μm. As of the 12-month follow-up, the average postoperative best-corrected visual acuity had improved to 0.08 ± 0.11 logMAR, and the central foveal thickness after surgery had decreased to 386 ± 58 μm at 12 months. Conclusions: After removing the potential influence of cataracts and posterior capsular opacity, the recovery of idiopathic epiretinal membranes continued up to 12 months after surgery.

STT를 활용한 근본적 말하기 습관 분석 및 개선 연구

김다영 ( Da-yeong Kim ),송민경 ( Min-gyung Song ),정수정 ( Su-jeong Jeong ),최서현 ( Hyun-choi Seo ),임성현 ( Sung-hyun Lim ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

지금까지 사람들의 말하기 습관을 분석하는 것은 전문가나 다른 사람들의 피드백을 통해 이루어졌다. 이는 평가하는 사람에 따라 다른 결과가 나타날 수 있기 때문에 다소 객관성이 떨어지며 직접 대면이 요구되기 때문에 훈련할 수 있는 시간과 공간에 제약이 있었다. 또 지금까지의 말하기 훈련이라 함은 면접 스피치나 발표 스피치 등 특정 목적을 가지고 진행되었기 때문에 말하기에 있어서의 통합적인 훈련을 받기 어려웠다. 본 연구에서는 가장 기초적인 말하기 습관에 초점을 맞추고 말하기 능력을 ‘어휘력’, ‘계속성’, ‘발음’, ‘속도’라는 4개의 영역으로 나누어 각 영역을 분석하는 알고리즘을 제시한다. 이 알고리즘을 활용한다면 모두 같은 메커니즘을 통해 분석이 이루어지기 때문에 객관성을 보장할 수 있으며 어플리케이션을 활용해 시간과 공간의 제약을 받지 않고 말하기 습관 개선을 위한 훈련을 할 수 있을 것이다.

제1형 및 2형 맥락막신생혈관에서 빛간섭단층혈관조영술의 진단적 유용성

김다영(Da Yeong Kim),김기석(Ki Seok Kim),염지현(Jie Hyun Youm) 대한안과학회 2021 대한안과학회지 Vol.62 No.3

목적: 나이관련황반변성에 동반된 1형 및 2형 맥락막신생혈관의 진단에서 빛간섭단층혈관조영술의 유용성을 확인하고자 하였다. 대상과 방법: 2018년 4월부터 2020년 1월까지 내원한 환자 중 빛간섭단층촬영 및 형광안저혈관조영술을 통해 나이관련황반변성에 동반된 맥락막신생혈관을 진단받았으나 치료받은 적 없는 59명의 63안을 대상으로 하였다. 삼출성 나이관련황반변성에 동반된 맥락막신생혈관은 형광안저혈관조영술과 인도시아닌그린형광안저혈관조영술에서 황반부의 과형광 및 후기의 누출 소견을 보이는 경우로 정의하였고, 빛간섭단층촬영에서 나타난 맥락막신생혈관의 위치에 따라 1형 및 2형으로 분류하였으며 이를 빛간섭단층혈관조영술의 자동 및 수동분할 결과와 비교하였다. 결과: 1형 맥락막신생혈관은 45안, 2형 맥락막신생혈관은 18안이었다. 빛간섭단층혈관조영술의 자동분할에서 맥락막신생혈관 1형은 45안 중 29안, 2형은 18안 중 17안에서 확인되었고 수동분할을 수행하면 1형은 45안 중 41안, 2형은 18안에서 신생혈관이 확인되었다. 빛간섭단층혈관조영술에서 자동분할만 시행하면 1형 맥락막신생혈관 진단의 민감도는 64.44%, 수동분할을 수행하면 91.11%였고(p<0.001), 2형 맥락막신생혈관의 진단에서 자동분할만 시행하면 민감도는 94.44%, 수동분할도 수행한 경우 100%였다(p=1.000). 결론: 빛간섭단층혈관조영술의 자동분할과 빛간섭단층촬영을 통해 나이관련황반변성과 동반된 1형 및 2형 맥락막신생혈관의 진단이 가능하며 빛간섭단층혈관조영술의 수동분할을 추가하면 1형 맥락막신생혈관 진단의 정확성이 증가하였다. Purpose: To report the availability of optical coherence tomography angiography (OCTA) when diagnosing type 1 and type 2 choroidal neovascularization (CNV) associated with age-related macular degeneration. Methods: We conducted a retrospective chart review of 63 eyes of 59 patients who visited the outpatient clinic from April 2018 to January 2020 with treatment-naïve type 1/2 CNV associated with age-related macular degeneration. The CNV was diagnosed through fluorescein angiography and indocyanine green angiography on the appearance of hyperfluorescence and leakage at the late phase. The CNV type was classified by location using OCT. These results were compared with those of automatic and manual segmentations via OCTA. Results: Of the 63 eyes, 45 eyes showed type 1 CNV and 18 eyes indicated type 2 CNV. Using the automatic segmented display of OCTA, type 1 CNV was identified in 29 of 45 eyes and type 2 CNV was confirmed in 17 of 18 eyes. In addition, when manual segmentation was performed, type 1 CNV was found in 41 of 45 eyes and type 2 CNV in 18 of 18 eyes. The sensitivity of diagnosis of type 1 CNV using only automatic segmentation in OCTA was 64.44%; the sensitivity increased to 91.11% when additional manual segmentation was performed (p < 0.001). For type 2 CNV, the sensitivity was 94.44% using automatic segmentation in OCTA and 100% with additional manual segmentation (p = 1.000). Conclusions: Automatic segmentation of OCTA and OCT analyses enabled diagnosis of type 1 and type 2 CNV associated with age-related macular degeneration. The diagnosis accuracy or type 1 CNV improved significantly when manual segmentation was added.

스마트 워치의 메뉴 인터페이스에 대한 사용성 연구

김다영(Da Yeong Kim),김귀영(Guiyoung Kim),김정환(Junghwan Kim),지용구(Yong Gu Ji) 대한인간공학회 2019 대한인간공학회 학술대회논문집 Vol.2019 No.10

통증을 동반한 외전마비로 나타난 경막동맥해면정맥동루 1예

김다영(Da-Yeong Kim),박유연(Yooyeon Park),박신혜(Shin Hae Park) 대한검안학회 2019 Annals of optometry and contact lens Vol.18 No.1

Purpose: To report a case of cavernous sinus dural arteriovenous fistula who presented with painful isolated abducens nerve palsy along with the characteristic conjunctival features. Case summary: A 71-year-old female was referred to our clinic due to left eye pain and binocular diplopia. Esodeviation of 20 prism diopters was found with abduction limitation in the left eye. Slit lamp examination showed conjunctival injection, edema and corkscrew vessel dilatation in the left eye. Brain magnetic resonance angiography showed rapid filling and increased blood flow in the left superior ophthalmic vein and cavernous sinus. Cerebral angiography revealed direct venous drainage from the left cavernous sinus fistula into the left superior ophthalmic vein. After coil embolization, the left eye showed improvement in pain, conjunctival congestion and abduction limitation. Conclusions: Cavernous sinus dural arteriovenous fistula should be considered when characteristic symptoms and conjunctival signs are accompanied with painful isolated abducens nerve palsy.

자율주행 환경 내 운전자의 상황인식 수준 측정을 위한 비주행 과업 분석 연구

김다영(Da Yeong Kim),오수진(Soo Jin Oh),윤솔희(Sol Hee Yoon) 대한인간공학회 2022 대한인간공학회 학술대회논문집 Vol.2022 No.4

소형주택 모델하우스에 나타난 주거용 빌트인 가구의 계획특성

김다영(Da Yeong Kim),차승언(Seung Un Cha),김미경(Mi Kyoung Kim) 충북대학교 생활과학연구소 2013 생활과학연구논총 Vol.17 No.2

The purpose of this study was to analyze the planning characteristics of built-in furniture in small-sized urban type housing. A case study was used to analyze and classify the functional and formal characteristics of built-in furniture applied in urban type housing of Seoul in the first half of 2012. Findings of the study were as follows: (1) The most important characteristic of built-in furniture was multi-functional aspect which was focused on the combination of furnitures. The second characteristic was formal aspect which was focused on the rapidity of installation and dismantling, and ease of movement. (2) Most of built-in furnitures had multi-functionality as functional aspect by combination of some furnitures including beds, chairs, tables and clothes dryers, electronic devices such as refrigerators and washing machines, and the other residential space elements such as stairs and partitions. (3) The flexibility as formal aspect of built-in furnitures was divided into folding/unfolding, opening/closing, and moving/separating. This study shows that the combination of multi-functionality and flexibility of the housing built-in furniture will be more ideal in small-sized housing planning rather than relying on just one type.

서울시 당뇨예방사업의 제2형 당뇨 환자에서 당뇨망막병증과 프래밍험 위험도 점수와의 관계

김다영(Da Yeong Kim),송수정(Su Jeong Song),배정훈(Jeong Hun Bae),박철영(Cheol Young Park),이은정(Eun Jung Rhee) 대한안과학회 2016 대한안과학회지 Vol.57 No.5

목적: 제2형 당뇨병 환자에서 당뇨망막병증과 프래밍험 위험도 점수(Framingham Risk Score) 간의 관계를 통해 당뇨망막병증에서 심혈관계 합병증의 위험성을 알아보고자 하였다. 대상과 방법: 2008년 9월부터 2009년 9월까지 서울시 당뇨병예방사업에 참여한 40세 이상을 대상으로 하였다. 당뇨망막병증의 단계는 1단계는 당뇨망막병증 없음, 2단계는 경도 비증식당뇨망막병증, 3단계는 중등도 비증식당뇨망막병증, 4단계는 중증 비증식당뇨망막병증, 5단계는 증식당뇨망막병증으로 하였다. 1단계는 제1군으로, 2단계는 제2군으로, 3단계와 4단계, 5단계를 합쳐서 제3군으로 하였으며 집단 간의 프래밍험 위험도 점수가 어떻게 변화하는지 일원배치 분산분석 방법을 이용하여 확인하였다. 결과: 총 529명 중 제1군은 403명, 제2군은 22명, 제3군은 104명으로 분포됐다. 당뇨망막병증의 중증도가 증가함에 따라 나타난 평균 프래밍험 위험도 점수는 제1군에서 10.89 ± 7.98, 제2군에서 12.25 ± 10.84, 제3군에서 13.25 ± 10.66으로 나타났으며, 제1군과 제3군 간의 차이는 통계적으로 유의하였다(p=0.014). 결론: 우리의 연구에서 당뇨망막병증이 심할수록, 프래밍험 점수는 유의하게 증가하였다. 심혈관계 질환이 세계적으로 사망의 가장 큰 원인 중 하나이며, 당뇨망막병증의 확인이 인체에서 쉽게 접근 가능하다는 점을 고려할 때 그 유용성은 적지 않을 것으로 사료된다. 하지만 본 연구는 단면연구로 진행되었기 때문에 정확한 인과관계를 알기는 어려우며, 향후 추가적 연구가 필요할 것이다. Purpose: In this study, we compared the risk of cardiovascular complications between diabetic retinopathy (DR) groups based on the Framingham Risk Score. Methods: Subjects 40 years of age or older were enrolled in the present study from September 2008 to September 2009. Five scales were used to evaluate the severity of DR for the most severely affected eye in each patient: no DR, mild nonproliferative DR (NPDR), moderate NPDR, severe NPDR and proliferative DR (PDR). The first group included no DR patients and the second group included mild NPDR patients. The third group included moderate NPDR, severe NPDR and PDR patients. The Framingham Risk Score was analyzed among the groups to determine whether a difference in score existed. Results: DR was found in 126 subjects. The first group included 403 subjects, the second group 22 subjects and the third group 104 subjects. The average Framingham Risk Score that appeared with increasing severity of DR was 10.89 ± 7.98 in the first group, 12.25 ± 10.84 in the second group and 13.25 ± 10.66 in the third group. The average difference between the first and third groups was statistically significant (p = 0.014). Conclusions: In our study, the Framingham Risk Score increased significantly with more severe DR (p = 0.042). Our results are useful when considering the easily accessible identification of DR and that cardiovascular disease is one of the main causes of death worldwide. However, confirming the exact causal relationship based on our results is difficult because the study design was cross-sectional and additional studies are necessary.

간호사의 환자기록관리 업무에 대한 업무중단과 멀티태스킹 패턴 분석: 시선 추적 데이터를 중심으로

김다영(Da Yeong Kim),김수련(Su Ryeon Kim),정므엘(Meuel Jeong),지용구(Yong Gu Ji) 대한인간공학회 2020 大韓人間工學會誌 Vol.39 No.4

Objective: The purpose of this study is to derive the practical aspects and potential problems of the charting, and increase the efficiency of nursing work. Background: Since the duties of nurses have increased over the years, the frequency of their work interruptions has increased as well. Charting in daytime is a task that is frequently interrupted, and performing multitasking to handle the interruption may cause distraction and memory load, leading to various errors. Therefore, it is necessary to analyze the interruptions and multitasking patterns during charting. Method: This study utilizes the eye-tracker to analyze the charting patterns of nurses who perform multitasking when interrupted by multiple causes of interruption and negative interruptions. We analyzed 4.13 hours of charting data from three daytime nurses. Results: During charting, interruptions occurred 155 times in total, of which 37.42% were by multitasking. Both interruptions and multitasking were caused most frequently by nurses, and half of the interruptions were handled through multitasking. Interruptions and multitasking caused by telephone followed after, but the rate of negative interruptions was low as 15.39%; this pattern was found because telephone waiting time was also included. On the other hand, family members and physicians have not had many interruptions, but most of them have been performing multitasking even when not related with charting. Conclusion: If an interruption occurs during charting, it must be handled by monotasking, and in the case of negative interruptions involving irrelevant tasks, charting has a higher work priority. However, in some situations where tasks involving patients" safety are intervened, the intervened tasks should be given priority and multitasking can be allowed at some point for efficiency. Application: This study can be used as educational materials for prioritizing in nursing work and a basic research for improving nursing work process.

6 GHz EMI/EMC 대책 설계 기술의 방향

김종훈,김석진,김다영,김명회,최철승,안승영,김정호,Kim, Jong-Hun,Kim, Seok-Jin,Kim, Da-Yeong,Kim, Myeong-Hoe,Choe, Cheol-Seung,An, Seung-Yeong,Kim, Jeong-Ho 한국전자파학회 2013 전자파기술 Vol.24 No.1