• 대한영상의학회지
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• 제84권1호
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• pp.240-252
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• 2023

목적 소아 환자에서 두부 컴퓨터단층촬영(이하 CT)에 대한 딥러닝 이미지 재구성(deep learning image reconstruction; 이하 DLIR; TrueFidelity; GE Healthcare, Milwaukee, WI, USA)의 효과를 평가하고자 한다. 대상과 방법 총 126개의 소아 두부 CT 이미지를 수집했으며, adaptive statistical iterative reconstruction (이하 ASiR)-V를 사용한 반복적 재구성 및 세 가지 수준의 DLIR을 사용한 재구성을 시행하였다. 각 이미지 세트 그룹은 환자의 연령에 따라 4개의 그룹으로 구분하였으며 각 연령군의 임상 및 방사선량 관련 데이터를 검토하였다. 양적 매개 변수에는 signal to noise ratio (이하 SNR) 및 contrast to noise ratio (이하 CNR)가 포함되었으며 질적 매개 변수로 영상의 잡음(noise), 회백질의 구분 정도, 선명도, 인공물 및 수용 가능성(acceptability), 영상의 질감이 포함되었고 이에 대한 평가와 비교를 시행하였다. 결과 모든 연령 그룹의 모든 수준의 SNR 및 CNR은 높은 수준의 DLIR 사용 시 증가하였다. ASiR-V와 비교했을 때 높은 수준의 DLIR은 SNR 및 CNR이 개선되었다(p < 0.05). 그리고 DLIR의 수준이 증가될수록 순차적인 잡음 감소, 회백질 구분 개선, 선명도 개선이 나타났다. 이러한 변수들에서 높은 수준의 DLIR 사용 시 ASiR-V와 유사한 정도의 수치가 측정되었다. 인공물과 수용 가능성의 경우에 적용된 DLIR 수준 간에 큰 차이를 보이지 않았다. 결론 소아 두부 CT에 고수준 DLIR을 적용하면 영상의 노이즈를 줄일 수 있으나 인공물 처리에 대한 개선이 필요하다.

• 여성건강간호학회지
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• 제5권2호
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• pp.204-221
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• 1999

Due to the ever increasing life-span of human beings, the average woman is living well into her 70's. Henceforth, they spend at least one-third of their life after menopause. Climacteric encompasses the time preceding, during, and proceeding menopause : a transitional period of shifting from the period of being fertile to the period of senescence. In other words, this is the time at which they lose the ability to reproduce. Menopause can influence a woman's sexual life immensely due to the physiological, social, and psychological changes that occur during that period. In korea, where some women still live according to Confucian Culture in terms of sexology, nurses can play a vital role in the dissemination of sexual facts to women. This study was designed to clarity the characteristic and satisfaction of sexual life. This was done according to the classification of three types of climacteric women : pre-meno-pausal, menopausal, and post-menopausal. I studied 159 climacteric women between the ages of 45 & 59, living in or around the vicinity of Taegu City. This study utilized the investigative tools for sexual life patterns which were constructed with field experts' consultation and reference review by the author. The sexual satisfaction was translated from DSFI. The climacteric symptoms were invented by Kupperman, This research is descriptive. The data was collected between July 15, 1998 and October 14, 1998. Statistical analysis was performed using ANOVA and Pearson Correlations, and was computed with the SPSS program. The results obtained are summarized as follows; The frequency of sexual activity was highest in pre-menopause and declined after menopause. The frequency of genital caressing declined after menopause. The difference between the frequency of masturbation and coital pain was not significant according to the classification set forth in this experiment. Congruently, the frequency of orgasms declined after menopause. The mean satisfaction of sexual life is 27.1 years. The range of expected score is 9-45 years of age. Satisfaction was highest in the pre-menopausal group and proved to be statistically significant. Some of the general characteristics that affected the satisfaction a woman's sexual life in the climacteric stage during this project were ; age, income, satisfaction in younger pre-menopausal and the large income group than the other experimental groups. The climacteric symptoms were conversely correlated with the satisfaction in one's sexual life.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제4권1호
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• pp.46-53
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• 1993

본 연구는 $1990 1 1{\sim}1992 12 31$ 기간 중 서울대학 어린이 병원 소아정신과와 중앙 대학부속 용산병원 소아청소년 크리닉을 방문한 자폐아동 중에서 1986년 및 1988년에 출생한 환자를 대상으로 하여 출생계절 및 출생순위, 자폐아 출산 당시의 산모 연령에 어떤 특이점이 있는지를 알아보기 위해 일반 인구집단의 출생자료와 비교하여 다음과 같은 결론을 얻었다. 1) 자폐아군은 총 357명이었으며 이중 남아가 319명 (89.4%), 여아가 38명(10.4%)으로 남녀 성비는 8.4:1이었다.2) 자폐아군의 월별분포나 계절별분포에 있어 대조군과 차이가 없었다. 3) Slater 및 Greenwood-Yule 방법에 의한 자폐아군의 출생순위를 대조군과 비교 분석한 결과 통계적으로 유의한 차이는 없었다.4) 자폐아군은 일반 대조군에 비해 출생 당시의 산모의 연령이 통계적으로 의미있게 높았다(p<01) 5) 출산의 위험도가 높은 임신은 일반 대조군에 비해 자폐아군에서 통계적으로 의미있게 많았다(p<01)

• Journal of Preventive Medicine and Public Health
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• 제26권3호
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• pp.387-399
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• 1993

This study was conducted to analyze blood lipid profile and other risk factors among crew members who are currently active and had more than 10 years of experience as crew members. Data was analyzed using medical record files in an airline medical department. The results are as follows. 1. The total number of crew members studied was 392. Among age groups, those below age 40 consisted of 26(6.9% of the total), those in age $41{\sim}50$ were 135 (34.4%) and those over age 51 were 230 (58.7%). 263 were former air force pilots consisting 66.9%. Those who had captain status numbered 21 I comprising 53.7% of the total. The type of aircraft most of the crew members involved were large size aircraft which totaled 268 (68.2%). With respect to the number of working years as crew members, 488(48.9%) comprised the largest group with $11{\sim}15$ years. 2. The rate of smoking among crew members has shown gradual decrease with 50.3% smoking in 1983 to 33.6% in 1993. Among $41{\sim}50$ age group the rate has shown a decrease from 20.9% to 13.3% In those group over age 51 it decreased from 25.5% to 16.6%. But group below age 40 were within the range of 3.6~3.8% with no significant change in the rate of smoking. 3. Body Mass Index in age group over 51 was slightly higher than other age groups. On the whole, BMI over 25 was not found. 4. The total cholesterol levels of those below age 40 were $196.9{\pm}38.5mg/dl,\;216.2{\pm}39.2mg/dl$ in ages $41{\sim}50$, and $225.1{\pm}42.5mg/dl$ in age group over 51. No significant difference was found among age groups. 5. HDL-cholesterol levels of over age 50 were higher than other age group and ranged from $40{\sim}55mg/dl$. 6. LDL-cholesterol levels of those over 51 were $126.7{\pm}37.7mg/dl$ higher than other age groups. But there were no significant changes in all age during 10 years of follow up. 7. Cardiac index of age group below age 40 was 3.8, 4.3 in age group $41{\sim}50$ and 4.5 in those over age 51 group. No significant changes among groups were found during the follow up period. 8. Triglyceride levels of age group below age 40 was $142.2{\pm}70.1,\;167.3{\pm}77.5$ in age group of $41{\sim}50$ and $113.6{\pm}897$ in age group over 50 showing that triglyceride levels increased with age. No significant changes in pattern were noted.

• 콘크리트학회논문집
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• 제15권4호
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• pp.541-548
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• 2003

본 연구는 내한촉진제를 사용한 콘크리트의 현장 적용성을 알아보기 위한 기초적인 실험으로서, 실물부재시험을 통해 각종 양생방법에 따른 온도이력 및 강도특성을 검토하고 한중콘크리트에서 실구조물과 동일한 강도이력을 가질 수 있도록 강도관리용 공시체의 적정 양생방법을 평가하기 위한 것이다. 실물부재시험에서 양생방법에 따른 온도이력은 일반콘크리트(단열양생), 일반콘크리트(급열양생), 내한촉진제 콘크리트 및 일반콘크리트(양생막 양생) 순으로 크게 저하하는 경향을 보이고 있었다. 강도특성은 양생조건이 열악한 양생막 내 외부에서의 일반콘크리트 공시체의 경우에는 초기동해에 따른 강도발현 저하를 보인 반면에 내한촉진제 콘크리트의 경우에는 재령이 경과할수록 계속적인 강도발현을 보이고 있어 내한촉진제의 사용에 따른 동결온도 저하효과 및 저온환경하에서의 경화촉진효과를 나타내고 있었다. 한중콘크리트의 강도관리용 공시체의 적정 양생방법을 검토한 결과, 부재 내부에 매립하여 양생한 경우 및 간이단열양생을 실시한 경우에 있어서의 구조체 콘크리트와의 온도이력은 다소 차이를 나타내고 있지만, 코어강도와는 비교적 근사하게 나타나고 있어 구조체 강도평가를 위한 이들 양생방법의 유효성을 확인할 수 있었다.

• Tuberculosis and Respiratory Diseases
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• 제81권4호
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• pp.281-288
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• 2018

Background: There are limited number of studies that investigate clinical variables instead of chronic obstructive lung disease (COPD) management according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 classification. The aim of the study was to investigate whether there was a difference between GOLD 2017 classification and spirometric stage in clinical variables in patients with COPD. The data of 427 male patients with stable COPD were investigated retrospectively. Methods: Patients were allocated into combined assessment of GOLD 2017 and spirometric stage. Age, amount of smoking, pulmonary function, modified Medical Research Council (mMRC), incremental shuttle walk test (ISWT), Hospital Anxiety-Depression Scale (HADS), St. George's Respiratory Questionnaire (SGRQ), body mass index (BMI), and fat free mass index (FFMI) were recorded. Results: Seventy-three (17%) patients were in group A, 103 (24%) constituted group B, 38 (9%) were included in group C, and 213 (50%) comprised group D according to the combined assessment of GOLD 2017. Twenty-three patients (5%) were in stage 1, 95 (22%) were in stage 2, 149 (35%) were in stage 3, and 160 (38%) were in stage 4 according to spirometric stage. According to GOLD 2017, age, amount of smoking, mMRC, BMI, FFMI, SGRQ, HADS, forced vital capacity, forced expiratory volume in 1 second ($FEV_1$), and ISWT were significantly different between groups. Ages, amount of smoking, FFMI, BMI, HADS of group A were different from B and D. Smiliar values of $FEV_1$ were found in A-C and B-D. A and C had smiliar ISWT. According to spirometric stage, BMI, FFMI of stage 4 were statistically different. mMRC, ISWT, and SGRQ of stages 3 and 4 were different from other stages, amongst themselves. $FEV_1$ was correlated with mMRC, SGRQ, anxiety scores, BMI, FFMI, and ISWT. Conclusion: This study showed that the GOLD ABCD classification might not represent the severity of COPD sufficiently well in terms of lung function or exercise capacity. The combination of both spirometric stage and combined assessment of GOLD 2017 is important, especially for estimating clinical variables.

• 한국보육지원학회지
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• 제10권2호
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• pp.111-131
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• 2014

본 연구는 영유아의 스마트기기 사용에 대한 실태와 어머니의 인식에 대해 조사하고자 하며 이 연구를 통해 영유아기 자녀의 스마트기기 사용에 따른 문제점을 예방하기 위한 기초자료를 마련하기 위한 것이 목적이라고 할 수 있다. 부산광역시 소재한 유치원, 어린이집에 다니는 만 1세부터 만 5세까지의 영유아 자녀를 둔 어머니 397명을 대상으로 조사연구를 실시하였으며 수집한 자료는 Window용 PASW 18.0 통계 프로그램을 이용하여 각 문항별로 빈도와 백분율을 실시하였고, 변인별 차이를 알아보기 위해 빈도와 백분율 문항에 대해서는 카이검증 및 일원배치 분산분석을 실시하였다. 그 결과 첫째, 영유아 가정의 스마트기기 사용여부를 살펴본 결과 대부분이 스마트기기를 사용하고 있고 자녀가 원할 때는 사용을 허용하고 있었으며 집에서 잠들기 전 저녁시간에 오락적인 놀이를 위해서 사용하고 있다고 하였다. 둘째, 자녀의 성별, 기관유형, 연령에 상관없이 어머니들 모두 스마트기기의 유해한 부분 차단의 안전성을 가장 많이 요구하는 것으로 나타났다. 결론적으로 어머니들은 스마트기기의 유해 부분을 차단하는 안전성 방안마련과 스마트기기를 학습에 도움이 되는 방향으로 사용하기를 원하고 있음을 볼 때 앞으로 자녀가 안전하게 스마트기기를 사용할 수 있고 교육의 효과도 극대화 할 수 있는 연구들이 필요함을 알 수 있다.

• 말소리와 음성과학
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• 제2권4호
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• pp.173-184
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• 2010

The purpose of this study is to investigate the speech rate characteristics (whole speech rate, articulation speech rate, and articulation percentage) and the pause characteristics (pause duration, pause frequency, and pause percentage) of Korean-speaking patients with idiopathic Parkinson's disease (referred to as IPD hereafter). The study aims first to examine the differences between the patient group with IPD and the other group without IPD concerning those measurements, and secondly to investigate the relevant measurements of the two groups following the sentence length changes. There were two groups of subjects in this study. The first group consisted of 7 subjects between the ages of 50 and 60 who were diagnosed as IPD with mild severity, and the second group consisted of 13 subjects without IPD who matched the age and gender of those in the first group. Those two groups were asked to read 8 different sentences in length at habitual speed. Speech rate and pause characteristics of the two groups were measured and compared each other. The followings results were observed. First, in a study of speech rate characteristics, the whole speech rate and the articulation speech rate of the patient group scored within the normal range, which is same as the group without IPD. On the other hand, with regard to the pause characteristics, differences between two groups were shown; the patient group had shorter pause duration, lower pause frequency, lower pause percentage, and higher articulation percentage. Secondly, in a study of relevant measurements following the sentence length, both groups showed a tendency for whole speech rate and articulation rate to increase as the length of the sentence increased, but the result of pause characteristics showed a difference between two groups. While the group without IPD showed a longer pause duration, higher pause frequency, and higher pause percentage as the length of sentences increases, no differences were shown among the patient group concerning the length of sentences. This study suggests a result that the patients with IPD of mild severity retained a normal speech rate and examined pause characteristics of the patient group which showed a different result from the group without IPD in terms of quality. Future studies on the speech rate and pause characteristics of Korean-speaking patients with IPD in various severities.

• Journal of Trauma and Injury
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• 제24권2호
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• pp.143-150
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• 2011

Purpose: The object of this study is to compare the patient satisfaction in the view of scarring, cost, and hospital stay between the conventional suture method and a method using Histoacryl$^{(R)}$ (2-N-butylcyanoacrylate) adhesive for treating facial lacerations in the emergency department. Method: This study is a randomized prospective trial, which was conducted from December 2009 to January 2010. The participants include 109 patients who visited the emergency room in Deajon Eulji Medical Center. The ages ranged from 1 to 59 (mean age of 18.7), and all had facial lacerations of less than 3 cm. In order to treat the facial lacerations, an emergency medicine doctor used tissue adhesive (2-N-butylcyanoacrylate, Histoacryl$^{(R)}$) for 41 patients in the experimental group, and a plastic surgeon performed conventional suturing for 68 patients in the control group. The ER-stay and the primary treatment fee were compared in the two groups, and the scarring was evaluated 10 to 11 months from suturing by using the Modified Hollander Method and the 10-cm scaled VAS (visual analogue scale: score 0=no scar, score 10=very severe scar) Result: The ER stay was 76 minutes for the experimental group and 107 minutes for the control group, showing that statistically significantly less time of 31 minutes was taken in the experimental group. The cost of the experimental group was 40000 won (50.1%) more expensive than the control group, with an average cost of 121900 won for the experimental group and 81200 won for the control group. As for scar evaluation, 10.56 months after suturing, the experimental group showed a better result with a score of 2.6 compared to a score of 3.4 in the control group; however, this difference was not statistically significant ($p$ <0.05). As to a detailed evaluation of scar characteristics, the experimental group had a statistically significantly better result in scar elevation, with a score of 0.6 compared to a score of 1.65 for the control group. Conclusion: If appropriate patients are selected, the method using tissue adhesive directly applied by an EM doctor not only decreases ER stay but also creates similar patients satisfaction, with statistically better result in scar elevation, compared to the conventional suture method; thus, ultimately general patient satisfaction is increased.

• Clinical and Experimental Pediatrics
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• 제48권5호
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• pp.523-526
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• 2005

목 적 : 흉수가 있는 환아에서 저알부민혈증의 중등도에 따른 임상 경과의 차이점을 알아보고자 하였다. 방 법 : 1999년 8월부터 2004년 8월까지 부산대학교병원에 입원 당시 흉수가 있었던 환아 96명 중 감염이 원인 질환인 환아 79명을 혈청 알부민 수치에 따라 두 군으로 나누었다(1군 : ${\leq}2.5g/dL$, 2군 : >2.5 g/dL). 각 환자의 연령, 성별, 혈청 알부민 수치를 포함한 기본 혈액 검사, 흉부 방사선 촬영 결과와 각 군에서 환아의 치료 방법 및 예후를 의무 기록을 바탕으로 후향적으로 조사하였다. 결 과 : 79명 중 남아 48명, 여아 31명이었고, 평균 나이는 3.9세 이었다. 각 군에서 기본 혈액 검사는 차이가 없었고, 원인이 되었던 질환은 폐렴 58례, 농흉 12례, 폐 결핵 8례, 심낭염과 폐렴이 동반된 환아는 1례이었다. 각 군별로 입원 기간은 1군이 더 긴 것으로 나왔고, 항생제나 항결핵제 사용만으로 회복된 환아는 1군에서 4례, 2군에서 26례로 각 군별 환자 비율에 유의한 차이를 나타냈다(P=0.004). 항생제 사용하면서 흉관 삽입을 한 경우는 1군에서 14례, 2군에서 26례로 각 군별 환자 비율에 차이가 없었다. 그리고 인공 호흡기 치료가 필요하였던 경우가 1군에서 8례, 2군에서 1례로 분포되어 있었고, 통계학적으로 유의한 차이를 보였다(P=0.000). 결 론 : Starling 법칙에 따라 모세혈관의 정수압의 상승과 삼투압의 감소가 흉수를 일으킨다고 알려져 있지만 뚜렷한 체액의 저류 없이 저알부민혈증을 가진 경우도 드물게 흉수를 일으킬 수 있다. 그리고 혈청 알부민 수치가 낮을수록 인공 호흡기 치료를 하거나 사망하는 경우와 같은 치명적인 결과를 초래할 가능성이 높다.