• Clinical and Experimental Reproductive Medicine
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• 제18권1호
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• pp.113-120
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• 1991

Etiologic classification was performed in 155 patients with recurrent spontaneous abortion history. The incidence was 9.3% among 1658 pregnant women at Hanyang university hospital during the same period. In etiologic classification, 37 cases of on-going patients for diagnostic evaluation were excluded. Of the remained 118 patients, the patients with unknown etiology were 32 cases (27.1%), and 86 cases were classified into each etiologies using appropriate diagnostic modalities. Anatomic causes were the largest etiology, which revealed 46.6% (55 among 118 patients). The next etiology was immunologic cause, which revealed 24.6% (29 patients). Of the 86 patients who have at least one cause, 40.7% (35 among 86) have two or more etiologies. Furthermore, six cases (7%) have 3 combined etiologies. The uterine synechia and/or incompetent internal os of the cervix, namaly anatomic causes, revealed highest combination ratio than other etilogies. The popular abortion technique in Korea, D&C, seems to be main factors for these anatmic causes. The combined causes rather than single cause of recurrent spontaneous abortion were unique situation in Korea especially with anatomic etiologies. From this point of view, we think anatomic etiologies should be rule out first in the evaluation of the patients. For this purpose, we believe hysteroscopy would be helpful as a diagnostic work-up and treatment modality in the management of recurrent spontaneous abortion patients in Korea.

• 대한방사선기술학회지:방사선기술과학
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• 제41권5호
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• pp.493-504
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• 2018

The diagnostic radiation equipment is managed in accordance with the "Rules for Safety Management of Diagnostic Radiation Equipment" enacted in 1995. The equipments should be inspected before use and every three years after use in accordance with the [Appendix 1] of the same rule. The inspection standard has been maintained without particular revision since enacted. But, over the past two decades new types of equipments have been manufactured and used. So, it is necessary to revise [Appendix 1] by making inspection items and inspection standards. In this study, we revised the classification system of equipments and reviewed international standards of IEC 60601 series, IEC 61223 series and AAPM TG 18 On-line Report No.03. And identified the problem of current inspection standards. Through this, we revised, deleted and added the inspection items and inspection standard of each equipment to meet the domestic circumstances. As a result of the study, we reorganized the classification system of equipment which are current classified as 5 classes into 22 classes as X-ray system etc. (7 classes), CT system etc. (5 classes) and Dental X-ray system etc. (10 classes). And then, we developed 70 inspection items for 6 types of equipments according to the reorganized classification system of equipments. The inspection items and inspection standards derived from this study have been proposed to the KCDC and will be applied to the revision of the Rule's [Appendix 1]. Therefore, we expect to be used as reference materials for domestic medical center, inspection institutions, and equipment manufacturing import companies.

• Journal of Oral Medicine and Pain
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• 제41권3호
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• pp.91-98
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• 2016

Purpose: Oral lichen planus (OLP) has generated many discussions and been associated with much controversy for a long time. A reliable diagnosis of OLP has proven challenging and significant disagreements concerning its diagnosis has continued. Therefore, the aim of this study was to apprehend newly proposed diagnostic criteria of OLP and oral lichenoid lesion (OLL) and to evaluate difference of final diagnosis of OLP and OLL in accordance with type of diagnostic criteria. Also, direct immunofluorescence (DIF) was compared to evaluate the value of DIF between two groups. Methods: Fifty-two patients with DIF result were retrospectively reviewed. The selected patients were classified by the modified World Health Organization (WHO) diagnostic criteria of OLP and OLL and by criteria proposed by American Academy of Oral and Maxillofacial Pathology (AAOMP). Results of DIF in OLP and OLL were classified by deposition intensity or pattern of fibrinogen. The classification of fluorescence pattern in each specimen was graded as positive, possibly positive or negative. Results: Patients diagnosed as OLP were a few more when the modified WHO diagnostic criteria were used than when criteria proposed by AAOMP were used. There was no statistical difference of DIF between OLP and OLL by applying the WHO modification criteria or criteria proposed by AAOMP. Conclusions: The final diagnosis of OLP could be changed in accordance with type of diagnostic criteria and difference of DIF between OLP and OLL was not found.

• 농업과학연구
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• 제37권3호
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• pp.515-522
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• 2010

The purpose of this research was to construct an efficient management system in developing and supplying a 'management standard diagnostic table' for the improvement of chestnut cultivation farmhouse. 'Chestnut management standard diagnostic table' were based from the actual condition of chestnut management in Chungcheongnam-do, selected 'appraisal factor item and by consulting 'agricultural plant standard diagnostic table' and various kinds of data which had already been developed. This research also consulted the classification systems and degree of importance. The developed 'Chestnut management diagnostic table' consisted of 3 first classified items, 19 second classified items and 2 product indicator items.

• Knee surgery & related research
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• 제30권4호
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• pp.284-292
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• 2018

Purpose: As the number of total knee arthroplasties (TKAs) increases, the incidence of femoral periprosthetic fractures after TKA is also increasing. This review aimed to suggest a new surgically oriented classification system for femoral periprosthetic fractures. Methods: We investigated the classifications, and current treatment trends for femoral periprosthetic fractures after TKA by means of a thorough review of the relevant literature. Results: Numerous studies reported good results of surgical treatment with modern fixatives including locking compression plates and retrograde intramedullary nails. However, few classifications of femoral periprosthetic fractures reflect the recent developments in surgical treatment. Conclusions: We recommend that surgical management be considered the first-line treatment for femoral periprosthetic fractures after TKA. Our new classification will help in deciding the surgical treatment option for femoral periprosthetic fractures after TKA.

• 대한예방한의학회지
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• 제14권2호
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• pp.135-148
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• 2010

The major purpose of this study is to evaluate the classification of epileptic seizure types and epilepsy described in the literatures of both Western and East Asian medicine, especially based on the two criteria- a theoretical and a practical aspect of the classification systems. Currently, the 1981 classification of epileptic seizure types, and the 1989 classification of epilepsy syndromes and epilepsies which were proposed and approved by the International League Against Epilepsy(ILAE) have been generally accepted worldwide, although a variety of modifications have been consistently suggested. A large proportion of epilepsy cases cannot be easily classified as either 'focal' or 'generalized' or as either 'symptomatic' or 'idiopathic', so they fail to be precisely fallen into any of the ILAE categories. Terms and concepts used in the East Asian medicine are also inadequate to identify epileptic seizure types and epilepsy syndromes as discrete diagnostic entities because of ambiguities in definition and use. Therefore, this article suggests an alternative approach not only more helpful in understanding mechanism of epilepsy but also more easily applicable and effective in clinical value.

• 식물분류학회지
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• 제31권4호
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• pp.321-341
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• 2001

벼속(Oryza) 잎의 식물규소체에 대한 분류학적 연구의 일환으로 표징형질을 정립하고 검색표를 작성하고자 광학현미경과 주사전자현미경을 사용하였다. 벼의 잎에서 가장 다양한 형태의 규소체를 형성했던 기공장치규소체, 장세포규소체 그리고 단세포규소체 등을 대상으로 엽신 배축면의 동일한 위치에 형성된 종류를 집중적으로 조사하였다. 이들 규소체의 특징은 속내 분류체계의 설정과 종을 동정하는데 유용하게 사용될 수 있었다. 기공장치규소체는 공변세포와 부세포 상의 유두상돌기 유래 규소체의 발달 유무와 배열 양상의 특징이 다양하게 나타났고, 이들의 특징은 절 및 계열 수준에서 기존 분류체계와 일치하였다. 장세포규소체는 표면에 유두상돌기의 발달 유무, 배열양상 및 형태 등에 따라 다양한 형태가 확인되었다. 그러나 확인된 특징이 본 속내 기존 분류체계와 일치하기보다는, 종의 동정에 유용한 것으로 생각되었다. 단세포규소체는 모두 형판규소체로 십자형, 안장형, 이완형 그리고 3완형 등이 확인되었으며, 이들의 특징은 절 및 계열 수준에서 계통학적으로 의의가 있었다. 또한 단세포규소체가 맥상표피역에 밴드를 형성하는 종류와 밴드를 형성하지 않는 종류, 유관속 종류에 따른 맥상표피역 규소괴의 밴드 수 그리고 맥간표피역에 안장형 규소체의 발달 여부 등에 따라 다양한 종류가 확인되었으나, 이들의 특징이 속내 분류체계와 일치하지 않는 것으로 나타났다. 조사된 기공장치규소체, 장세포규소체 그리고 단세포규소체 등의 특징에 따라 각각 검색표를 작성하였고, 각 형질의 특징과 속내 분류계급과 비교하여 계통학적 의의를 논의하였다.

• Journal of Preventive Medicine and Public Health
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• 제26권3호
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• pp.371-386
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• 1993

This study was carried out to evaluate diagnostic criteria of noise-induced hearing loss (NIHL) among-workers in an iron foundry. Of 1,093 workers under the observation of noise-specific health examination, 184 workers were selected by way of first and second screening audiometric examination. A questionnaire survey, otological examinations, Rinne test and audiometric test were performed and the results were as follows ; The degree of hearing impairment in the left ear was more severe than in the right ear (p<0.05). The difference between hearing threshold of the first and the second hearing test at 1,000 Hz was about 5 dB with a narrow range of deviations while the difference at 4,000 Hz was about -7 dB with a wide range. Of the total study workers, 84.8% were tested within 15 hours away from noise exposure, and the rest after 16 hours. This study has identified that mean hearing loss at 4,000 Hz showed a significant statistical difference among the two study groups while mean hearing loss by 4-divided classification did not. The same phenomena were observed between the group with and without tinnitus and between the group with and without difficulty in hearing (p<0.05). Among 184 workers, 10 workers (5.4%) diagnosed as NIHL by old diagnostic criteria in contrast to 150 workers diagnosed as NIHL by the new diagnostic criteria. There was a significant difference between the two groups in the average hearing loss at 4,000 Hz and 4-divided classification (p<0.01), but there were no significant differences in age, the duration of employment, blood pressure and the duration wearing the personal hearing protector (p>0.05). If we apply Early Loss Index (ELI) method, some workers in younger age group diagnosed as NIHL by the new diagnostic criteria were fallen into within the normal range. In the mean time older age group show reverse results in contrast to the above finding. It is too early to confirm the value of the usage of the new diagnostic criteria in hearing examination. Further study is called for to verify the value of this criteria.

• 생물정신의학
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• 제20권3호
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• pp.63-65
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• 2013

The new edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) is published by the American Psychiatric Association. The diagnostic systems for mental disorders have come under criticism for relying on presenting signs and symptoms with the result that they do not adequately reflect relevant neurobiological and behavioral systems. Finally, the National Institute of Mental Health (NIMH) in the United States has suggested the Research Domain Criteria (RDoC) to develop a research classification system based upon dimensions of neurobiology and behavioral aspect. The present review introduces the RDoC as a new reaseach framework.

• 제어로봇시스템학회논문지
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• 제7권6호
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• pp.494-501
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• 2001

In this paper an ANFIS(Adativo Neuro-Fuzzy Inference System)- based fault detection and diagnosis for a closed loop control system is proposed. The proposed diagnostic system contains two ANFIS. One is run as a parallel model within the model in closed loop control(MCL) and the other is run as a series-parallel model within the process in closed loop(PCL) for the generation of relevant symptoms for fault diagnosis. These symptoms are further processed by another classification logic with simple rules and neural network for process and controller fault diagnosis. Experimental results for a DC shunt motor control system illustrate the effectiveness of the proposed diagnostic scheme.