Clinical applications of shear wave dispersion imaging for breast lesions: a pictorial essay

배민선,Kim Hyo Young,Hyunseung Oh,Seo Bo Kyoung 대한초음파의학회 2023 ULTRASONOGRAPHY Vol.42 No.4

Shear wave dispersion (SWD) imaging is a newly developed ultrasound technology designed to evaluate the dispersion slope of shear waves, which is related to tissue viscosity. This advanced imaging technique holds potential for distinguishing malignant lesions from benign lesions and normal breast tissue. The SWD slope, as determined by shear wave elastography (SWE), could offer crucial insights into the characterization of breast lesions. This article presents SWE and SWD images of both malignant and benign breast lesions, in addition to normal breast tissue.

한국 수사기관의 범인음성식별절차 도입을 위한 제언

배민선,이미선 한국법심리학회 2016 한국심리학회지: 법 Vol.7 No.2

Voice identification is the process of comparing a perpetrator’s and suspect’s voice samples in order to determine if the two voices are consistent with one another. Previous research suggested that since it requires remembering and recognizing voices from a past experience, the accuracy of an earwitness’s identification could be affected by various factors. These include variables relating to the identification procedures such as line-up size, instruction, delay and so on. Also a witness’s age, gender, race or confidence could affect the accuracy of voice identification results. Recognizing how vulnerable the identification process should be, the governments of England and Wales published the official guidance on voice parades in 2003. However, theoretical findings on voice identification and its application for the legal system in South Korea are still little known. These findings are required to continue with concerns and efforts from both academic and legal experts in order to establish the standardized guidance for voice identification in South Korea. 범인음성식별(voice identification)은 범인과 용의자의 목소리를 대조하여 범인을 식별하는 과정을 의미한다. 지금까지 음성식별과 관련된 연구 결과에 따르면 음성식별과정은 오류를 포함할 수 있으며 특정 조건 하에서 정확성이 감소될 수 있음을 확인하였다. 예를 들어, 범인음성식별과정에서 제시되는 적성수준의 음성 샘플의 수와 제시된 목소리의 길이는 정확성을 향상시킬 수 있는 반면, 목격 시점과 라인업 사이의 시간적 간격이 길어질수록 정확성은 감소한다. 목격자의 인종이나 연령, 성별 및 확신도 역시 음성식별의 정확성에 영향을 줄 수 있다. 영국의 경우, 일찍 범인의 목소리에 대한 진술의 중요성과 범인음성식별절차에 대한 공식지침의 필요성을 깨닫고 자세한 공식지침을 권고하고 있다. 하지만 우리나라의 경우, 범인음성식별과 관련된 인식은 여전히 미미한 수준이다. 범인음성식별의 신빙성 확보를 위한 표준화된 범인음성식별절차의 도입을 위해서는 지속적인 연구와 더불어 관련 실무자의 관심이 요구된다.

영유아기 자녀를 둔 어머니들의 사교육에 대한 인식과 경험

민선옥,배지희 한국육아지원학회 2014 한국육아지원학회 학술대회지 Vol.2014 No.4

토론연극을 활용한 부모역량 강화 프로그램 개발 및 적용

민선옥,배지희 한국유아교육학회 2018 정기학술대회 논문집 Vol.2018 No.-

본 연구는 토론연극을 활용한 부모역량 강화 프로그램을 개발하고 그 영향을 밝히고자 하는데 목적이 있다. 이를 위해 부모교육과 토론연극에 관한 문헌연구, 요구조사와 전문가 협의, 예비연구를 토대로 프로그램을 개발하였다. 본 프로그램은 교육목적 및 목표, 교육내용, 교수-학습방법, 평가로 구성되었다. 개발된 프로그램은 유치원에 재원하는 자녀를 둔 어머니 8명을 대상으로 2017년 3월 29일부터 6월 7일까지 총 10회기에 걸쳐 적용되었고, 참여관찰, 면담, 연구일지 작성, 그리고 저널쓰기를 통하여 자료를 수집하였다. 연구결과, 토론연극을 활용한 부모역량 강화 프로그램에 참여한 어머니들에게서 개인으로서의 변화, 부모역할의 변화, 그리고 양육태도의 변화가 나타났다. 이는 부모 자신에 대한 이해를 바탕으로 부모역량을 강화시키는 부모교육 프로그램이 효과적임을 시사하는 것이다.

Sine-Cosine 알고리즘을 사용한 인공위성용 전동기의 최적 설계

배성빈(Seong Been Bae),최동수(Dong Soo Choi),민선기(Seun Guy Min) 한국항공우주학회 2023 한국항공우주학회 학술발표회 논문집 Vol.2023 No.4

코로나19 유행 동안 고혈압ㆍ당뇨병 유병 여부에 따른 소득수준별 일상신체활동 변화: 2020년 지역사회건강조사를 이용하여

윤민선,정현숙,배보영,홍나영,임현우 한국보건교육건강증진학회 2022 보건교육건강증진학회지 Vol.39 No.2

Objectives: This study aimed to examine the changes in daily physical activities during the COVID-19 epidemic compared to before COVID-19 according to the prevalence of hypertension and diabetes. Furthermore, it also investigated whether a difference in the decrease in daily physical activity occurred according to economic level. Methods: The participants included 64,840 people in the hypertensive/diabetic group and 96,092 people in the non-hypertensive/-diabetic group using the 2020 Community Health Survey data. A multivariable logistic regression analysis was used to calculate the adjusted odds ratios for the decrease in daily physical activities during the COVID-19 epidemic between the two groups. Household income was stratified into quartiles to determine the association according to economic level. Results: During COVID-19, the decrease rate of daily physical activities in the hypertensive/diabetic group was 46.1%, which was significantly lower than that in the non-hypertensive/-diabetic group (51.5%) (aOR, 95% CI: 0.961, 0.934-0.989). However, in the lowest income group (1st quartile), the decrease in daily physical activities was higher in the hypertension/diabetes group (aOR, 95% CI: 1.114, 1.051-1.181). Conclusion: Strategies are needed to maintain and increase physical activities among hypertensive or diabetic patients in low-income groups during the COVID-19 pandemic. .

이식신의 평가에 있어서 초음파 유도 생검의 유용성

김영재,최철순,민선정,이경규,이일성,강익원,배상훈 대한초음파의학회 2003 ULTRASONOGRAPHY Vol.22 No.4

Features of Undiagnosed Breast Cancers at Screening Breast MR Imaging and Potential Utility of Computer-Aided Evaluation

서미리내,조나리야,배민선,구혜령,김원화,이수현,추아정 대한영상의학회 2016 Korean Journal of Radiology Vol.17 No.1

Objective: To retrospectively evaluate the features of undiagnosed breast cancers on prior screening breast magnetic resonance (MR) images in patients who were subsequently diagnosed with breast cancer, as well as the potential utility of MR-computer-aided evaluation (CAE). Materials and Methods: Between March 2004 and May 2013, of the 72 consecutive pairs of prior negative MR images and subsequent MR images with diagnosed cancers (median interval, 32.8 months; range, 5.4–104.6 months), 36 (50%) had visible findings (mean size, 1.0 cm; range, 0.3–5.2 cm). The visible findings were divided into either actionable or underthreshold groups by the blinded review by 5 radiologists. MR imaging features, reasons for missed cancer, and MR-CAE features according to actionability were evaluated. Results: Of the 36 visible findings on prior MR images, 33.3% (12 of 36) of the lesions were determined to be actionable and 66.7% (24 of 36) were underthreshold; 85.7% (6 of 7) of masses and 31.6% (6 of 19) of non-mass enhancements were classified as actionable lesions. Mimicking physiologic enhancements (27.8%, 10 of 36) and small lesion size (27.8%, 10 of 36) were the most common reasons for missed cancer. Actionable findings tended to show more washout or plateau kinetic patterns on MR-CAE than underthreshold findings, as the 100% of actionable findings and 46.7% of underthreshold findings showed washout or plateau (p = 0.008). Conclusion: MR-CAE has the potential for reducing the number of undiagnosed breast cancers on screening breast MR images, the majority of which are caused by mimicking physiologic enhancements or small lesion size.

간으로 전이된 소세포암의 면역조직화학적 및 전자현미경 관찰

노선희,정규원,박재정,문일환,배서은,유 권,조민선 이화여자대학교 의과대학 2009 EMJ (Ewha medical journal) Vol.32 No.1

Small cell lung cancer accounts for about 20% of all lung cancers. At the time of diagnosis, the majority of patients already have metastasis. The liver is one of the most common sites of distant metastasis of lung cancer. Small cell lung cancer arises from neuroendocrine cells which produce hormone, hormone producing granules can be seen under electron microscope . A 65-year-old male was admitted to hospital because of jaundice and right upper quadrant pain. The chest roentgenogram and chest computed tomography(CT) scan showed a 3 cm mass in right upper lobe with bilateral mediastinal lymphadenopathy and right pleural effusion. The abdomen CT scan revealed multiple masses in the liver with heterogenous pattern suggesting metastatic orgin. Though the immunohistochemistry and electron miscroscopy, he was diagnosed as metastatic small cell lung cancer of liver. We report a case of the Immunohistochemical and Electron Microscopic Observation of Metastatic Small Cell Lung Cancer of Liver.

골밀도 측정에 있어서 말단부골밀도측정법의 유용성: 중축골 이중에너지방사선흡수법과의 비교

박지선,진욱,박소영,배민선,김덕윤,최봉근,류경남 대한영상의학회 2010 대한영상의학회지 Vol.62 No.6

Purpose: To evaluate the feasibility of peripheral bone densitometry for the assessment of bone density, and to compare it with dual energy X-ray absorptiometry (DXA). Materials and Methods: Radiographic absorptiometry (RA) of the middle phalange, peripheral DXA (pDXA) of the calcaneus, and the DXA were performed for two groups: Group 1 was a normal group of 54 healthy young women and group 2 was a group of 54 postmenopausal women considered to be at a high risk for osteoporosis. For the normal group, RA and pDXA were scanned twice to assess the repeatability of the methods. The Tscores were compared to determine whether there was a correlation between the peripheral and axial bone densitometries. The cutoff values of RA and pDXA for the diagnosis of osteopenia were determined. Results: Each examination showed different T-scores for a given person. The T-scores of RA were higher than those of pDXA for the normal group, whereas the T-scores of pDXA were higher for high-risk group. The coefficients of repeatability were 0.88 in RA and 1.53 in pDXA. The correlation coefficient for DXA was higher in RA than in pDXA. The cutoff values for osteopenia were -1.773 for RA and -1.75 for pDXA, as compared to -1.0 for DXA. Conclusion: The data suggests that RA is a viable screening method for osteoporosis. However, there should be consideration for the fact that bone density depends on examination methods or sites. 목적: 골밀도 측정에 있어서 말단부골밀도측정법의 유용성을 알아보고, 이중에너지방사선흡수법(DXA)과 비교하고자 한다. 대상과 방법: 20~30대의 건강한 여성 54명과 골다공증 고위험군인 50~60대의 폐경기 여성 54명을 대상으로 말단부골밀도측정법인 왼손 세 번째 중지골에 대한 방사선흡수법(RA)과 왼쪽 종골에 대한 말단부 이중에너지방사선흡수법(pDXA)과 함께 표준검사법인 요추부 및 대퇴골에 대한 DXA를 시행하였다. RA와 pDXA는 정상군에서 각각 2회씩 검사하여 반복재현성을 평가하였다. RA와 pDXA의 T-score를 각각 DXA의 T-score와 비교하여 상관관계의 유무를 알아보고, 각 검사법의 골감소증 진단을 위한 T-score 값을 산출해보았다. 결과: 동일인에서 세 가지 검사법은 서로 다른 골밀도 값을 보였으며, 정상군에서 RA가 pDXA보다 높았고, 골다공증 고위험군에서는 pDXA가 높았다. RA와 pDXA검사법의 반복계수는 각각 0.88과 1.53으로 높게 나타났다. DXA와의 상관관계는 RA법이 pDXA에 비해 높았다(RA, r=0.6067; pDXA, r=0.1693). DXA의 골감소증 진단기준인 T-score=-1.0과 비교해 골감소증의 확정값은 RA에서 -1.773, pDXA에서 -1.75였다. 결론: 말단부골밀도측정법, 특히 RA는 골다공증 선별검사로 유용하게 이용될 수 있으나, 동일인에서 검사 부위나 방법에 따라 골밀도가 다소 다르게 나타날 수 있음을 유의해야 한다.