• Title/Summary/Keyword: Visual sensitivity

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Identification and Assessment of Paradoxical Ventricular Wall Motion Using ECG Gated Blood Pool Scan - Comparison of Cine Loop, Phase Analysis and Paradox Image - (ECG Gated Blood Pool Scan을 이용한 심실벽 역행성 운동의 평가 - Cine Loop, Phase Analysis, Paradox Image의 비교 -)

  • Lee, Jae-Tae;Kim, Gwang-Weon;Jeong, Byeong-Cheon;Lee, Kyu-Bo;Whang, Kee-Suk;Chae, Sung-Chul;Jeon, Jae-Eun;Park, Wee-Hyun;Lee, Hyong-Woo;Chung, Jin-Hong
    • The Korean Journal of Nuclear Medicine
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    • v.24 no.2
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    • pp.244-253
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    • 1990
  • Sixty-four patients with paradoxical ventricular wall motion noticed both in angiocardiography or 2-dimensional echocardiography were assessed by ECG gated blood pool scan (GBPS). Endless cine loop image, phase and amplitude images and paradox image obtained by visual inspection of each cardiac beat or Fourier transformation of acquired raw data were investigated to determine the incremental value of GBPS with these processing methods for identification of paradoxical ventricular wall motion. The results were as follows: 1) Paradoxical wall motions were observed on interventricular septum in 34 cases, left ventricular free wall in 26 and right ventricular wall in 24. Underlying heart diseases were ischemic (23 cases) valvular(9), congenital heart disease (12), cardiomyopathy (5). pericardial effusion(5), post cardiac surgery(3), col pulmonale (2), endocarditis(1) and right ventricular tumor(1). 2) Left ventricular ejection fractions of patients with paradoxical left ventricular wall motion were significantly lower than those with paradoxical septal motion(p<0.005). 3) The sensitivity of each processing methods for detecting paradoxical wall motion was 76.9% by phase analysis, 74.6% by endless cine loop mapping and 68.4% by paradox image manipultion respectively. Paradoxial motions visualized only in phase, paradox or both images were appeared as hypokinesia or akinesia in cine loop image. 4) All events could be identified by at least one of above three processing methods, however only 34 cases (48.4%) showed the paradoxical molies in all of the three images. By these findings, we concluded that simultaneous inspection of all above three processing methods-endless cine loop, phase analysis and paradox image-is necessary for accurate identification and assessment of paradoxical ventricular wall motion when performing GBPS.

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Value of Bone Scintigraphy and Single Photon Emission Computed Tomography (SPECT) in Lumbar Facet Disease and Prediction of Short-term Outcome of Ultrasound Guided Medial Branch Block with Bone SPECT

  • Koh, Won-Uk;Kim, Sung-Hoon;Hwang, Bo-Young;Choi, Woo-Jong;Song, Jun-Gul;Suh, Jeong-Hun;Leem, Jeong-Gill;Shin, Jin-Woo
    • The Korean Journal of Pain
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    • v.24 no.2
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    • pp.81-86
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    • 2011
  • Background: Facet joint disease plays a major role in axial low-back pain. Few diagnostic tests and imaging methods for identifying this condition exist. Single photon emission computed tomography (SPECT) is reported that it has a high sensitivity and specificity in diagnosing facet disease. We prospectively evaluated the use of bone scintigraphy with SPECT for the identification of patients with low back pain who would benefit from medial branch block. Methods: SPECT was performed on 33 patients clinically suspected of facet joint disease. After SPECT, an ultrasound guided medial branch block was performed on all patients. On 28 SPECT-positive patients, medial branch block was performed based on the SPECT findings. On 5 negative patients, medial branch block was performed based on clinical findings. For one month, we evaluated the patients using the visual analogue scale (VAS) and Oswestry disability index. SigmaStat and paired t-tests were used to analyze patient data and compare results. Results: Of the 33 patients, the ones who showed more than 50% reduction in VAS score were assigned 'responders'. SPECT positive patients showed a better response to medial branch blocks than negative patients, but no changes in the Oswestry disability index were seen. Conclusions: SPECT is a sensitive tool for the identification of facet joint disease and predicting the response to medial branch block.

Sleep/Wake Dynamic Classifier based on Wearable Accelerometer Device Measurement (웨어러블 가속도 기기 측정에 의한 수면/비수면 동적 분류)

  • Park, Jaihyun;Kim, Daehun;Ku, Bonhwa;Ko, Hanseok
    • Journal of the Institute of Electronics and Information Engineers
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    • v.52 no.6
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    • pp.126-134
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    • 2015
  • A sleep disorder is being recognized as one of the major health issues related to high levels of stress. At the same time, interests about quality of sleep are rapidly increasing. However, diagnosing sleep disorder is not a simple task because patients should undergo polysomnography test, which requires a long time and high cost. To solve this problem, an accelerometer embedded wrist-worn device is being considered as a simple and low cost solution. However, conventional methods determine a state of user to "sleep" or "wake" according to whether values of individual section's accelerometer data exceed a certain threshold or not. As a result, a high miss-classification rate is observed due to user's intermittent movements while sleeping and tiny movements while awake. In this paper, we propose a novel method that resolves the above problems by employing a dynamic classifier which evaluates a similarity between the neighboring data scores obtained from SVM classifier. A performance of the proposed method is evaluated using 50 data sets and its superiority is verified by achieving 88.9% accuracy, 88.9% sensitivity, and 88.5% specificity.

The Comparison of Effective of Stretching Exercise and Stabilizing Exercise for The Patients with Myofascial Pain Syndrome at The Shoulder Girdle (견관절부 근막동통증후군의 근육내 전기자극치료시 신장운동과 안정화운동의 효과 비교)

  • Kim, Sang-Eun;Lee, Hyun-Ok;Kim, Jong-Soon;Kim, Suhn-Yeop
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.11 no.2
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    • pp.49-61
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    • 2005
  • Summary of Background Data: Myofascial pain syndrome (MPS) is a common painful muscle disorder caused by trigger points occurring in myofascial. MPS is a major cause of chronical pain and is the subject of further clinical examination. Purpose: To uncover effective intramuscular stimulation therapy (IMS), the patients' actively participation stretching exercise and stabilizing around shoulder girdle where trigger point provoking myofascial pain syndrome in usually occurred. Methods: 45 myofascial pain syndrome patients were randomly chosen and divided into 3 groups. The first group (G1) received only IMS therapy, The second group (G2) had both IMS and active stretching exercises administered and the final group (G3) was given IMS therapy and stabilizing exercises. Therapy intervention was given for 3 weeks, 3 times a week and then only stretching exercise for the second group and stabilizing exercise for the third group was given for another 3 weeks. The visual analogue scale was dine before the experiment, 3 weeks after the experiment and 6weeks after the experiment to measure subjective degrees of pain and pressure pain threshold to measure sensitivity improvement of trigger point and functional ability questionnaire to measure daily life performance. Results: There were no significant changes after 3 weeks but after 6 weeks, between GI and G2 and between G1 and G3 showed significant change of pain, pressure pain threshold and daily life performance. There were significant improvement of the measurement of degrees of pain, pressure pain threshold and improvement of daily life performance at different times for G1 showed change 3 weeks after the experiment, but there were no changes 6 weeks after the experiment. There were significant improvement of the measurement at different times for G2 and G3 showed change 3 weeks after the experiment and 6 weeks after the experiment. Conclusions: IMS therapy proved to be effective in inactivation of trigger points of the myofascial pain syndrome patients and stretching and stabilizing exercises beside it keep remedial value longer by improvement of pain and dysfunction that occurred by the trigger point.

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A Study on the Application or Fashion Illustration for the VMD Plan - Focusing on POP Advertisement - (VMD 방안으로서 패션 일러스트레이션 활용에 관한 연구 - POP 광고를 중심으로 -)

  • 김정민;김순자
    • The Research Journal of the Costume Culture
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    • v.12 no.4
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    • pp.648-662
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    • 2004
  • These days fashion market is overflown with many brands and their identities are not so clear that the advertisement emphasizing the characteristics of the products don't seem to be adequate in appealing the customers. Therefore it is required that the sensible image advertisement which appeals to the customers by stimulating their feeling and sensitivity to attract customer's interest. At that point, VMD especially of POP advertisement that can be attract direct purchasing plays an important part to build up the accurate image of brand to consumers. Even thought today's individualized consumers take much interested in the fresh and original expressions, the visual expressions of fashion advertisements still focus on using photographs. The most advertisement of photograph has a limit that it shows only an immediate fraction, so it can't present whole image It can deliver more- imaginations and message than photograph if fashion illustration is used in advertisement. Therefore the purpose of this study was to present the application of fashion illustration for the POP advertisement Twelve pieces of fashion illustrations were produced and classified three parts according to their images and expression techniques. Paper sculpture techniques were applied for fashion image expression, for paper is easily meet daily life and ecological materials. For study procedure and contents, the concept and useful functions of fashion illustration and the concept of paper sculpture were examined as a theoretical background, and various uses and techniques of paper sculpture by analysing a number of paper sculpture art works were also studied. Also the concept, roles and functions of POP advertisement were discussed, and then the examples that the fashion illustration applied in the advertisement were analyzed through case study. The theme of my works was jean fashion brand whose brand image is significant, Twelve pieces of fashion illustrations using paper sculpture techniques were produced and various kinds of paper were used in expressing the paper sculpture technique. Each works were cut out the forms and used a pertinent light for making cubic effect shadow when displayed them. In my works Ⅰand Ⅱ, Ⅰ illustrated jeans in two images of sexy and casual, these were created slightly bigger than actual body size in order to attract consumer's gaze at show window or store. In my works Ⅲ, Ⅰ illustrated part or model of a jean product so that it could be used as addition to main display.

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The Trend of Textile Design in the 1980s and Its Meaning in Historical Perspective (1980년대의 직물디자인 경향 및 그 사적 의미)

  • Park, Nam-Sung
    • Archives of design research
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    • v.17 no.4
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    • pp.211-222
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    • 2004
  • During the 1980s, Textile design achieved a remarkable growth in creating aesthetic effect and in establishing its standing by responding to demands of the time effectively and seeking changes proactively. This was a period when Textile design constructed its modern concept as it was attempting a qualitative improvement through advanced technology, high class, and differentiation. The advent of advanced materials through the development of textile engineering, employment of craft techniques to further cultural and artistic orientation, and restoration of decorativeness in pursuit of sensitivity, all these developments of the 1980s contributed to the rise of above characteristics. In this study, attempts are made to grasp the new trend of Textile design during the 1980s and to review diverse methods of aesthetic creation and plastic possibility which this trend presented for the Textile, and thus to recognize the role of Textile design and its importance in a new light. The new trend of Textile design during the 1980s can be summarized as follows: 1) An appreciation of the creative aspect of the Textile. As attempts are made to emphasize visual and sensitive aspects of the medium, Textile tended to become an object of art itself. 2) A new awareness of the representative and plastic capacity of the fiber material. As attempts are made to develope the creative potential of the Textile, representation of the material tended to become more diversified. 3) A recognition of the Textile as a proper means to deliver the spirit of the time. As the medium accommodates and fuses diverse cultures including traditional culture, more emphasis was place on cultural contents of the Textile. In the process of pursuing these changes, Textile design of the 1980s has also contributed to the creation of new values, laying the groundwork for its emergence as an advanced high value-added industry.

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Relationship between Smartphone Addiction and Sensory Processing Ability of Preschool Children (학령전기 아동의 스마트폰 중독과 감각처리능력과의 관계)

  • Kim, Chae-Hyeon;Kim, Kyeong-Mi;Chang, Moon-Young;Jung, Hyerim
    • The Journal of Korean Academy of Sensory Integration
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    • v.19 no.2
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    • pp.1-11
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    • 2021
  • Objective : The purpose of this study was to compare sensory processing ability by smartphone addiction levels in preschool children, and to investigate the correlation between smartphone addiction level and sensory processing ability within smartphone addiction group. Method : The subjects of this study were 324 persons, with 124 persons in the addiction group and 200 in the normal user group. Measurements in this study were a questionnaire about general characteristics of subject, smartphone addiction scale, and short sensory profile. Methods for the data analysis included descriptive statistics, independent t-test, Pearson correlation analysis of SPSS 22.0. Results : There was a significant difference in the total Short Sensory Profile (SSP) score and in all sub-domains between the addiction and normal use groups (p<0.05). In the smartphone addiction group, there was a negative correlation between the SSP total score (r=-.278), auditory filtering (r=-.293), visual/auditory sensitivity (r=-.393) and smartphone addiction level. Conclusion : This study confirmed that there was a difference in smartphone addiction and sensory processing ability between the preschool children addiction and normal use groups. It has been proven that there is an interrelationship between sensory processing ability and smartphone addiction in the addiction group. It is significant in that it provides basic data to prevent smartphone addiction.

Study on Mental Health of Students of the Department of Optometry at a University by Gender (성별에 따른 일개 대학교 안경광학과 학생들의 정신건강에 관한 연구)

  • Ye, Ki Hun;Cho, Seon Ahr
    • The Korean Journal of Vision Science
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    • v.20 no.4
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    • pp.483-495
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    • 2018
  • Purpose : The purpose of this study is to analyze the factors affecting the mental health of students in the department of optometry by the gender and to provide differentiated help to student life and career guidance. Methods : Questionnaire for 132 students in the department of optometry in Chungcheong region was analyzed and mental health was compared and analyzed by the gender. In this study, a questionnaire by SCL-90-R was used, and all statistical information was statistically processed with a significance level of p<0.05 using SPSS 18.0 (SPSS 18.0 was used for processing statistical information with a significance level of p<0.05). Results : Students of the department of optometry presented mental health problems; somatization was 22.7%, psychasthenia was 28.3% and hostility was 12.8%. Depression and paranoia were 27.7% and 10.2% respectively, followed by interpersonal sensitivity, psychosis, phobia, and anxiety disorder with 14.7%, 10.4%, 5.9% and 17.4% respectively. Conclusion : About 28.7% of the students of the department of optometry students experienced somatization, psychasthenia or hostility due to negative mental health and female students ranked relatively higher in all variables than males. Therefore, it is judged that differentiated counseling and guidance in life will be needed for students based on their gender differences.

The Correlation Between Smartphone Addiction and Sensory Processing Feature Depending on Gender in College Students (작업치료전공 대학생의 성별에 따른 스마트폰 중독과 감각처리와의 관련성)

  • Hong, Eunkyoung;Lee, Hyerim
    • The Journal of Korean Academy of Sensory Integration
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    • v.16 no.3
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    • pp.1-10
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    • 2018
  • Objective : The purpose of this study was to investigate smartphone addition and sensory processing character depend on gender for occupational therapy (OT) students, and to identify the correlation between smartphone addiction and sensory processing feature. Methods : Participants of this study were 168 (70 male/90 female) students majoring occupational therapy. Measurements in this study were a questionnaire about general information of subject, smartphone addiction scale, and adult/adolescent sensory profile. Data collection period was from November 2017 to March 2018. Methods for the data analysis included descriptive statistics, independent t-test and Pearson correlation of SPSS 22.0. Results : In term of the purpose of using smartphone, majority response was communication and gaming ranked in next. There were difference between male and female in the total smartphone addition, cyberspace-oriented relationship, withdrawal and tolerance. The result showed that all sensory processing are related with total smartphone addition (r = .236 ~ .603) for man. And for women, total smartphone addition is little related with the taste/smell processing (r= .290), visual processing (r= .324), touch processing (r= .214), low registration (r= .214), sensory sensitivity (r= .243), and sensory avoiding (r= .217). Conclusion : This study found that there is difference between male and female in terms of relation between smartphone addition and sensory processing feature according for occupational therapy students.

A Study on the Use Pattern of Yun Dong-Ju in the movie (영화 <동주>(2015)에 표상된 윤동주 시 활용양상 연구)

  • Son, Mi-young
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.2
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    • pp.59-65
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    • 2019
  • This study examines how cinematic texts are used in movies through Lee Jun-ik's 2015 film, and what narrative and visual effects are obtained through them. This film portrays poet Yun Dong-ju as a central figure and chooses to reconstruct his life. The movie, , used Yun's poetry as a device to maximize the lyricism of the film and to suggest a change in the fate of the character and the inside. In other words, uses Yun Dong-ju's poetry to aesthetically express the inner change of the characters in the film and the sensitivity of the film. Through this, I visualize Yun Dong-ju as poet Yun Dong-ju, a poet who was stuffed in literary books, as a normal literary youth. It is also a reminder of the weight of the reality that the present youth is experiencing and the problem of an individual living in history. In this respect, the movie is a major text that depicts the poetry and poetry of the time, and the age of poet through the media. 'Poetry' as the text of the text delivered with the image maximized the lyricism of the image and led to high aesthetic achievement. Through poetry and poetry, it can be regarded as the main text approaching the problems of history, individual, literature and reality.