• Journal of the Korean Society for Nondestructive Testing
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• v.32 no.5
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• pp.518-525
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• 2012

In this study, the feasibility of hyperspectral reflectance imaging technique was investigated for the discrimination of viable and non-viable lettuce seeds. The spectral data of hyperspectral reflectance images with the spectral range between 750 nm and 1000 nm were used to develop PLS-DA model for the classification of viable and non-viable lettuce seeds. The discrimination accuracy of the calibration set was 81.6% and that of the test set was 81.2%. The image analysis method was developed to construct the discriminant images of non-viable seeds with the developed PLS-DA model. The discrimination accuracy obtained from the resultant image were 91%, which showed the feasibility of hyperspectral reflectance imaging technique for the mass discrimination of non-viable lettuce seeds from viable ones.

• Journal of the Korean Society of Radiology
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• v.15 no.2
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• pp.147-152
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• 2021

This study is a retrospective analysis of the results of tests at three general hospitals in Busan that perform mammography using digital mammography devices. There were 5,320 people in the study, and the results of their breast cancer screening were analyzed to verify the efficacy of breast cancer screening for digital mammography. The average age of patients who performed breast cancer screening was 57.7 years (range 30 to 87 years), and the cancer detection rate was 26, with 4.6 cases per 1,000 people. According to the cancer detection rate by risk factor in patients who conducted breast cancer screening, breast cancer was found in patients without underlying diseases more than in patients with underlying diseases. Additional ultrasound examinations show that the gastronomic rate identified is 3.6%, which is relatively very low compared to that of the Film-Screen system.

• The Korean Journal of Nuclear Medicine
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• v.28 no.3
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• pp.371-376
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• 1994

To reevaluate the clinical usefulness of erection penography for diffential diagnosis of impotence, we reviewed retrospectively the data of penography in 56 patients who were diagnosed as impotence by various diagnostic workup. Twelve normal males were studied as control group. Papaverine HCl 30mg was injected into the corpus cavernosum and simultaneously $^{99m}Tc$-HSA 20mCi was injected via an antecubital vein. After injection radioactivities in the penile area were detected for 30 minutes by gamma camera and time activity curve was displayed. We defined that transit time(TT) is the time to reach peak activity and erection persistent time(EPT) is the duration of time to maintain peak activity and venous index(VI) is the ratio of radioactivity($R_{30}/R_{max}$). The results were as follows. The TT of arteriogenic group($10.7{\pm}2.8min$) was significantly increased compared with those of control and venogenic groups(P<0.05, respectively). The EPT of venogenic group ($6.2{\pm}6.8min$) is significantly decreased compared with those of control and arteriogenic groups(P<0.05, respectively). The TT of psychogenic($15.2{\pm}5.5min$) is significantly increased compared with those of control and arteriogenic groups(P<0.05, respectively). In conclusion erection penography was very useful for the diagnosis of vascular and psychogenic impotence and for differentiation between arteriogenic and venogenic but it could not differentiate mixed type or neurogenic from vascular or psychogenic.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.843-848
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• 2023

The purpose of this study is to understand in detail the development of infants in the 18-24-month period when language develops the most, and to prepare new standards for developmental evaluation that can promote appropriate intervention design at an early time. We divided sub-items such as screening tests and standardized test tools to know the language development ability indicators of infants aged 18-24 months were divided into syntax/phonology, meaning, and speech, and each question was classified and a checklist was made on a five-point scale to conduct a survey on parents with infants aged 18-24 months. Low sensitivity to screening of infants with language delays in nationally implemented infant health checkups, and domestic test tools are standardized for at least six to as many as 10 years, which is always possible in questionnaires related to acceptance and expression, with many reports from parents or teachers.The proportion of "wow" and "started to do" was more than 50-60%. Based on the results of this study, it is hoped that new standards for developmental evaluation will be developed to promote the design of appropriate interventions in detail at a short time.

• The Journal of the Korea Contents Association
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• v.11 no.9
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• pp.407-413
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• 2011

Distinguishing aphasia in stroke patients and observing the subtle linguistic characteristics associated with it primarily requires the use of instruments that provide reliable assessment results. Additionally, examiners should be fully aware of how to use those instruments. This study examined 46 stroke patients for aphasia and assessed the reliability of their diagnoses according to examiners whose medical fields were different from each other. Furthermore, a comparison was made between the reliability before training and that after training. To this end, 46 stroke patients were tested for aphasia and in terms of their speech disorder degree by 3 groups, each of which consisted of 12 professionals (3 SLP, 3 neurologist, and 3 nurse). In the result, a rating of 'acceptable' was given for speech intelligibility tasks and the voice quality of /ah-/ prolongation, and other sub-tests were marked as 'good-excellent' by the experts with different areas of medical expertise. For the tasks marked as 'acceptable', the subjects were video-trained for 3 weeks and the differences were compared before and after their training. Consequently, the differences in the examiners' ratings in the speech intelligibility tasks showed a significant decrease and the accuracy of their voice quality ratings showed a significant increase. In the result of research on the correlation between the accuracy of the sub-test ratings and the amount of clinic experience, speech therapists developed more accuracy in rating a picture description task and a speech intelligibility task as their experience accumulated. Meanwhile, doctors and nurses showed more accurate ratings in picture description tasks with greater clinical experience. The results of this study suggest that assessing the neurologic-communicative disorders of stroke patients requires ongoing training and experience, especially for speech disorders. It was also found that the rating reliability in this case could be improved by training.

• Korean Journal of Childcare and Education
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• v.7 no.4
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• pp.1-26
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• 2011

The purpose of this study was to examine the screening and its validation of children with language developmental delay in child care and education centers, the response of parents with children with language developmental delay and the assistance needs of child care and education teachers for those children. Teacher interview with semi-structural method, transcription and content analysis method were used. The subjects in this study were 13 teachers and 30 infants and toddlers with language developmental delay in 10 child care and education centers in Seoul. The findings of the study were as follows: First, the child care and education teachers screened children with language developmental delay in their classes based on their verbal characteristics and maladjusted behavior. Their screenings were turned out correct. Second, as for the response of parents, the parents who had children with language developmental delay were indifferent, were aware of the fact in advance or asked the teachers for counseling on their children's language developmental delay. Third, the teachers couldn't provide the appropriate supports for the children in needs. Fourth, regarding the assistance needs of the child care and education teachers, they called for assistance from specialists and professional institutions, and wanted to receive education on language development. Besides, they asked for relevant supporting materials and screening criteria, and considered it necessary to reduce the ratio of teacher to children.

• Anxiety and mood
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• v.9 no.1
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• pp.31-37
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• 2013

Objective : The PDSQ is a brief and psychometrically strong self-report scale designed to screen for common DSM-IV Axis I disorders in clinical settings. In this study, the K-PDSQ was compared with the M.I.N.I.-Plus (Mini-International Neuropsychiatric Interview-Plus) for diagnostic validity and availability of the K-PDSQ as a part of standardization of the K-PDSQ. Methods : The 640 patients were evaluated with the K-PDSQ and the M.I.N.I.-Plus. Diagnosing with the M.I.N.I.-Plus, the diagnostic correspondence, administering time, sensitivity, specificity, ROC curve, and AUC of the K-PDSQ were evaluated. Results : For the diagnostic correspondence of the K-PDSQ, Cohen's kappa coefficient was .66 between the K-PDSQ and the M.I.N.I.-Plus. The administering time of the K-PDSQ was $18.2{\pm}11.80$ minutes. Both sensitivity and specificity of the K-PDSQ were higher: the mean sensitivity across 10 subscales of K-PDSQ was 86%; the mean specificity was 84%. All AUCs of each subscale were above .80, which were statistically significant. Conclusion : The K-PDSQ is valid and available as a diagnostic screening tool. It will be widely used in clinical settings for screening DSM-IV Axis I diagnosis because of its simplicity and high reliability.

• Journal of Genetic Medicine
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• v.6 no.1
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• pp.74-80
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• 2009

Purpose: To assess the value of first-trimester pregnancy-associated plasma protein-A (PAPP-A), nuchal translucency (NT) and second-trimester alpha-fetoprotein (AFP), human chorionic gonadotropin (hCG), unconjugated estriol (uE3), and inhibin-A in predicting pregnancy complications other than fetal aneuploidy. Materials and Methods: A retrospective study in 3,121 singleton pregnancies with integrated testing was performed at Kangnam CHA hospital between January 2005 and December 2006. Baseline characteristics, pregnancy outcomes, and serum marker levels were obtained by review of the medical records. We analyzed the data to identify associations between the integrated screening markers and adverse pregnancy outcomes. Statistical analyses were performed with the SPSS program. Results: In preterm labor and preeclampsia, high AFP, hCG, and inhibin-A levels and low PAPP-A and NT levels were found to be significantly correlated (P<0.05). Elevated second-trimester inhibin-A levels were associated with preeclampsia (odds ratio 2.843), low birth weight (odds ratio 1.446), and preterm labor (odds ratio 1.287), and while decreased first-trimester PAPP-A levels were associated with preeclampsia (odds ratio 0.51) and preterm labor (odds ratio 0.75). Conclusion: First- and second-trimester maternal serum markers screening can be used for predicting high-risk pregnancies.

• Journal of Korean Ophthalmic Optics Society
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• v.13 no.4
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• pp.109-114
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• 2008

Purpose: To assess the reproducibility and repeatability for each color vision test method. Methods: The subjects for color vision test were 30 students without congenital color vision deficiency and they major in optometry in a university, Korea. The type of color vision test selected for this study were Hans color vision test, Hans 15 hue test and Lanthony D 15 hue test. The Ishihara test was added for assessment of reliability of inter-tester. Results: All of the subjects were classified into normal at pseudoisochromatic plates, but one subject's result showed mild blue-yellow color deficiency at Hue discrimination. Results of 3 repeated test for subjects and inter-tester examination showed no errors at pseudoisochromatic plates. There were differences in mild errors among repeated test at Hue discrimination, but no differences were found in the results of repeated test to classify color vision deficiency. Conclusion: Each tester had better be more skilled to test even simple color vision test for eliminating the possibility of mild errors. Each subject might just as well be careful in color vision test. It is required to test both method of pseudoisochromatic plates and Hue discrimination in screening test.

• Journal of Hospice and Palliative Care
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• v.11 no.4
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• pp.175-180
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• 2008

진행된 암환자에서 피로는 70% 이상이 경험하게 되는 흔한 증상이며 삶의 질을 저하시키는 주된 요인이다. 피로에 대한 선별검사는 "피곤하거나 지친감이 있나요?"라는 단순한 질문으로 가능하며 이미 개발된 평가도구를 사용하여 평가할 수 있다. 동반 질환이나 피로의 원인을 알기 위한 병력청취와 검사실 검사가 필요할 수 있으며 결과에 따라 가역적 인자를 치료하는 과정이 우선되어야 한다. 적절한 약물치료를 시행하여 증상을 호전시킬 수 있으며 이중 methylphenidate는 암 연관 피로를 호전시키고 마약성 진통제에 의한 진정에 효과가 입증되었다. 환자의 여명에 따라 부신 피질 호르몬제도 사용할 수 있고, 운동 및 환자의 교육과 영양관리 또한 중요하다.