• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.36 no.2
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• pp.51-58
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• 2018

Recently, various satellite sensors have been developed and it is becoming more convenient to acquire multitemporal satellite images. Therefore, various researches are being actively carried out in the field of utilizing change detection techniques such as disaster and land monitoring using multitemporal satellite images. In particular, researches related to the development of unsupervised change detection techniques capable of extracting rapidly change regions have been conducted. However, there is a disadvantage that false detection occurs due to a spectral difference such as a seasonal change. In order to overcome the disadvantages, this study aimed to reduce the false alarm detection due to seasonal effects using the direction vector generated by applying the $S^2CVA$ (Sequential Spectral Change Vector Analysis) technique, which is one of the unsupervised change detection methods. $S^2CVA$ technique was applied to RapidEye images of the same and different seasons. We analyzed whether the change direction vector of $S^2CVA$ can remove false positives due to seasonal effects. For the quantitative evaluation, the ROC (Receiver Operating Characteristic) curve and the AUC (Area Under Curve) value were calculated for the change detection results and it was confirmed that the change detection performance was improved compared with the change detection method using only the change magnitude vector.

• Journal of East-West Nursing Research
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• v.2 no.1
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• pp.22-36
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• 1997

Functional recovery of cerebrovascular accident (CVA) patients were studied by examining functional independence measure (FIM) to evaluate the functional state of the patients at admission to and at discharge from the hospital and its relationship with the family support. Study subjects consisted of 129 CVA patients, who were admitted and received rehabilitation treatment at K Medical Center of Oriental Medicine from August 3 to December 18, 1997. The results were as follows: 1) Total FIM score was $72.37{\pm}25.16$ at admission and $101.67{\pm}22.13$ at discharge. The difference of average score was 29.30, which was statistically significant by paired t-test. 2) The largest difference between FIM scores at admission and at clischarge was observed in items of walking and wheel-chair riding, and the smallest clifference in items of social interaction. 3) The recovery was faster with motor function than with cognitive function, because the difference of FIM scores at admission and at discharge was much larger with motor function. 4) Recovery was better in groups under age 49 than in groups above age 70. Functional recorvery was prominent especially in groups with normal sensory state and speech functions, and groups without urinary incontinence. Recovery was less significantly in patients with paraplegic patients hospitalized longer than 2 months, patients with family all the time, and patients with CVA over 11 days. 5) We could not find any relationship between functional recovery and family support. FIM scores were lower in groups of old age(r=-0.325), long stayed in hospital (r=-0.426), and long period of time after the onset of disease(r= -0.339) with a reciprocal correlation between FIM scores and these parameters. 6) Stepwise multiple regression analysis was done to evaluate factors to affect the recovery from CVA. FIM score at admission could explain 51.2 % of the functional recovery. Important factors were periods of hospitalization, state of sensory function, age, and education (listed in decreasing order of importance). In total, they could explain 64.89% of the functional recovery. These results indicate that functional recovery of CVA patients, who were admitted to oriental medicine hospital for rehabilitation treatment, could be estimated by measuring FIM scores. Recovery was significantly better at discharge from the hospital than at admission and motor function recovery rate was much faster than that of cognitive function. 2. Recommendation Based on these results, we recommend following further studies. 1) Comparative study of recovery of motor function and of sensory function would be necessary by measuring FIM scores once a week to evaluate the recovery of CVA patients. 2) It would be interesting to see whether there is any difference of functional recovery between patients treated with either western medicine or oriental medicine. 3) Psychological factors affecting the recovery of CVA patients need to be studied.

• Journal of Sasang Constitutional Medicine
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• v.10 no.2
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• pp.431-453
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• 1998

1. Background and Purpose: We intended to make the standards of CVA management of Sasang Constitutional Medicine and be helpful to understand the constitutional symptoms through a clinical study of CVA. 2. Methods: We studied 157 CVA inpatients(79 men and 78 women) who were in constitutional clinic of Dongguk Pundang Oriental Hospital during 1 year from March 1997 to February 1998. We investigated and analysed the characteristics, past histories, symptoms and progresses of patients. 3. Results: The results of constitutional analysis showed 88 Taeumin(56.1%), 48 Soyangin(30.6%) and 21 Soeumin(13.4%). The frequency of strokes was much the same between male and female and the greater part of cases were 50-70 of age. The CVA cases were classified into 119 cerebral infarction(75.8%), 11 cerebral hemorrhage(7.0%), 1 subarachnoid hemorrhage(0.6%) and 26 trasient ischemic attack. From the standards of symptom management, there were abnormality of a coated tongue(63.1%) in most cases, sleeping disorders(48.4%), excremental disorders(44.7%) and urinary disorders(36.9%) on admission. With regard to the rate of improvement in the standards of CVA management, excremental disorders improved 87.1% and emotional disorder 81.0%, swallowing disorder 78.7% and so on.

• Physical Therapy Korea
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• v.12 no.2
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• pp.98-104
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• 2005

This study was done to research the general information, causes of stroke, risk factors, complications during admission of geriatric CVA inpatients. We retrospectively studied 208 above 65 years old geriatric CVA inpatients treated in Ajou university hospital from 1994 to 2003 by medical record. These were divided into two groups by following years. We were gathered information about sex, onset age, cause of stroke, number of stroke, complications, housing, family, insurance, smoking, alcohol. Most of incidence of the stroke was noted in the group of young old age (65~74 years old) and old age (75~84 years old). The occurrence rate of male stroke (38.5%) was less than of female stroke (61.5%) and the ratio of male to female was 1:1.6. The occurrence rate of ischemic stroke (72.6%) was higher than of hemorrhagic stroke. The occurrence rate of ischemic stroke increased more and more at the late stage. The most common risk factors for stroke was hypertension and complications during hospitalization were neurogenic bowl and bladder. These results of epidemiologic study may help above 65 years old geriatric CVA early treatment and prevention, rehabilitation and use basic data for multiple prospective study using stroke registry.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.22 no.1
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• pp.65-70
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• 2016

Background: To determine the correlation Between forward head posture and plantar pressor in a McKenzie Exercise. Methods: This study had a cross-sectional design. There are included 20 participants with forward head posture. We measured the craniovertebral angle (CVA), cranial rotation angle (CRA) by image obtained digital camera and the plantar pressure, static balance using Gait Analyzer each before and after McKenzie Exercise. Results: There was negative correlation between CVA and CRA (p<.05). There was negative correlation between CVA and fore foot(p<.05). There was positive correlation between CRA and both fore foot (p<.05). There was negative correlation between CVA and static balance(p<.05). There was positive correlation between CRA and static balance (p<.05). Conclusions: There is a correlation between the change a mount of forward head position and plantar pressure in the McKenzie Exercise.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.19 no.2
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• pp.11-18
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• 2013

Background: The objective of this study was to compare the efficacies of thoracic self-mobilization and strengthening exercise in young adults with thoracic hyperkyphosis. Methods: The subjects were 30 young adults (11 males, 19 females) with thoracic hyperkyphosis. They were randomly assigned to one of three groups: thoracic self-mobilization, thoracic strengthening exercise, and control group. The thoracic self-mobilization group performed active dynamic exercises, which included thoracic extension and rotation in supine and standing positions. The strengthening exercise group performed resistance exercises involving the back extensor muscle, with an elastic band and dumbbells. The outcome measures were the thoracic kyphosis angle and forward head posture (craniovertebral angle [CVA] and cranial rotation angle [CRA]). Results: Compared with the baseline values, the thoracic kyphosis angle had decreased while the CVA had increased in both training groups (p<.05), but the CRA was significantly decreased in only the strengthening exercise group. Thoracic self mobilization reduced kyphosis and improved CVA, while thoracic strengthening exercise reduced kyphosis and improved CVA and CRA. Conclusion: This study suggests a promising exercise intervention that can improve posture in young adults with thoracic hyperkyphosis.

• The Korean Journal of Rehabilitation Nursing
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• v.8 no.1
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• pp.5-12
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• 2005

Purpose: The purpose of this study was to investigate the quality of life and related factors of CVA surgery patients. Method: The subjects were 64 CVA surgery patients who had discharged and received follow up care at the OPD. Data were collected using William's SS-QOL instrument and IADL. And Data were analyzed with SPSS WIN program in which frequency, percentage, t-test, Pearson's correlation and stepwise regression were used to examine the quality of life and related factors. Result: General characteristics related to QOL were marital status and economical status. Depression was the most important factor with influence on QOL in CVA disease patients after surgery. There were further positive correlation between patient's IADL and QOL and between patient's social support and QOL. Meanwhile the patient's depression level was negatively correlated with QOL. Conclusion: Depression was the most important factor with influence on QOL in CVA patients after surgery. Therefore active nursing intervention to decrease depression and to improve patient's physical functional status in needed. And the patient's family should be included in all nursing intervention and patient education so that the patient's quality of life is prompted by the maintenance of optimal wellbeing.

• Journal of the Korean Society of Physical Medicine
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• v.10 no.3
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• pp.9-17
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• 2015

PURPOSE: This paper aims to present the available angle to evaluate the severity of forward head posture (FHP) with the observation method and photographic method. METHODS: A cross-sectional observation research design study consisted of 29 subjects who was divided two groups (slight FHP group, moderate FHP group) in Eulji university was used. We evaluated the FHP and the angles including CranioVertebral Angle (CVA), Head Tilting Angle (HTA), Head Position Angle (HPA) and Forward Shoulder Angle (FSA) with the Body style S-8.0 (South Korea, LU Commerce). RESULTS: The mean of CVA, FSA from the slight FHP group was shown higher than moderate severe FHP group. According to independent t-test result, but there was no difference among all angles in two groups. The linear discriminate analysis showed the size of distinction of FSA was the biggest, and then CVA, HTA and HPA were in the order. 55.6% of FSA is properly classified in the slight FHP group. CONCLUSION: The FSA is the best to distinguish the severity of FHP and then CVA as the second best. Therefore, FSA is recommended to check the FHP.

• Journal of Korean Academy of Nursing
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• v.46 no.6
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• pp.848-857
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• 2016

Purpose: This study aimed to investigate factors affecting frailty by age groups among vulnerable elders in Korea. Methods: In this secondary analysis, data were collected from records for 22,868 elders registered in the Visiting Health Management program of Public Health Centers in 2012. Health behaviors, clinically diagnosed disease, frailty, depression and cognitive condition were assessed. Data were analyzed using stepwise regression to determine the associated factors of frailty by age group. Results: Alcohol consumption, physical activity, number of diseases, DM, CVA, arthritis, urinary incontinence, depression and cognitive condition were found to be factors significantly associated with frailty among the elders aged 65~74 (F=135.66, p <.001). Alcohol consumption, physical activity, CVA, arthritis, urinary incontinence, depression and cognitive condition were found to be factors associated with frailty in the elders aged 75~84 (F=245.40, p <.001). Physical activity, CVA, arthritis, depression and cognitive condition were factors associated with frailty in the elders over 85 years of age (F=96.48, p <.001). Conclusion: The findings show that frailty of elders and associated factors were different by age group, and common factors affecting frailty were physical activity, CVA, arthritis, depression and cognitive condition. Thus, these factors should be considered in the development of intervention program for care and prevention of frailty and program should be modified according to age group.

• Journal of the Korea Convergence Society
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• v.3 no.4
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• pp.23-28
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• 2012

The aim of this study is to reveal the right approach and prognosis of cerebrovascular accident (CVA) by reviewing the various researches on CVAs. The reviews were done by BNBI PubMed, KMBase, RISS, and KoreaMed. Based on the articles, prevalence rate of CVA, prehospital CVA patients assessment and emergency care, and in-hospital care were analyzed. The most important scales are Cincinnati prehospital stroke scale(CPSS) and Los Angeles prehospital stroke screen(LAPSS). These two scales are the basic assessment tools for CVAs and it is necessary to perform the emergency care by way of these scales.