• Title/Summary/Keyword: standard of diagnosis

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A study on fault diagnosis for chemical processes using hybrid approach of quantitative and qualitative method (정성적, 정량적 기법의 혼합 전략을 통한 화학공정의 이상진단에 관한 연구)

  • 오영석;윤종한;윤인섭
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.714-717
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    • 1996
  • This paper presents a fault detection and diagnosis methodologies based on weighted symptom model and pattern matching between the coming fault propagation trend and the simulated one. At the first step, backward chaining is used to find the possible cause candidates for the faults. The weighted symptom model(WSM) is used to generate those candidates. The weight is determined from dynamic simulation. Using WSMs, the methodology can generate the cause candidates and rank them according to the probability. Secondly, the fault propagation trends identified from the partial or complete sequence of measurements are compared to the standard fault propagation trends stored a priori. A pattern matching algorithm based on a number of triangular episodes is used to effectively match those trends. The standard trends have been generated using dynamic simulation and stored a priori. The proposed methodology has been illustrated using two case studies and showed satisfactory diagnostic resolution.

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Development of a Standard Tool for Pattern Identification of Gastroesophageal Reflux Disease (GERD) (위식도역류질환 변증도구 개발 연구)

  • Han, Ga-jin;Leem, Jung-tae;Lee, Na-la;Kim, Jin-sung;Park, Jae-woo;Lee, Jun-hee
    • The Journal of Internal Korean Medicine
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    • v.36 no.2
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    • pp.122-152
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    • 2015
  • Objectives: This study was designed to develop a standard tool for pattern identification of gastroesophageal reflux disease (GERD) patients. Methods: Korean and Chinese literature was selected that mentioned pattern identification of GERD. We gathered the pattern identification and their symptoms and a Chinese medical doctor proficient in Korean translated the Chinese characters into Korean. A Korean linguist then confirmed the translation results to develop a draft of the standard tool for pattern identification of gastroesophageal reflux disease (PIGERD). The final PIGERD was developed after assessment by an expert committee composed of professors from the Korean Medicine University, using the following items: inclusion of the pattern identification and its symptoms, importance of items, and validity of translation. Results: Six pattern identifications and 94 symptoms were selected from 45 references and translated into Korean. Four pattern identifications [pattern/syndrome of liver qi invading the stomach (肝胃不和), spleen-stomach weakness (脾胃虛弱), spleen-stomach dampness-heat (脾胃濕熱), and stomach yin deficiency (胃陰不足)] and 49 symptoms were then selected through the Delphi method by the expert committee. The final standard PIGERD tool was completed after the assessment of translation validity and reflection of individual opinions by the expert committee. This tool consists of 40 items including tongue and pulse diagnosis. The weighted value was also computed from assessment of the importance of items. Conclusions: We developed a standard tool for pattern identification of gastroesophageal reflux disease (PIGERD) to clarify the pattern identification of patients with gastroesophageal reflux disease for standardized diagnosis.

Application of Wide Latitude Film to Radiographic Diagnosis in Small Animal (소동물 X-선 진단에 있어서 광범위 관용도 필림의 이용에 관하여)

  • Choi Min-Cheol
    • Journal of Veterinary Clinics
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    • v.9 no.2
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    • pp.473-481
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    • 1992
  • To elucidate the applicability of the wide latitude X-ray film for radiographic diagnosis and treatment of diseases in small animals, the quality of the wide latitude film was compared with that of the standard latitude film which is commonly used in veterinary clinic. The images of head, neck, thorax, abdomen, extremities and joints were radiographed with the wide latitude and standard latitude film in fourteen dogs. In soft tissues such as abdominal organs, lung, skin, mammary glands, the clearer and higher contrast of the image was observed on the wide latitude film. And these advantages were more apparent in pneumoeritoneography. Therefore. it can be suggested that the wide latitude film is practically useful for the evaluation of the images of soft tissues, and also can be used on hard tissue radiography with the same quality as the standard latitude film.

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Standardization of diagnosis of cold hypersensitivity of hands and feet by D.I.T.I.

  • Lee, Kyung-Sub
    • Journal of Oriental Medical Thermology
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    • v.3 no.1
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    • pp.15-19
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    • 2004
  • Cold hypersensitivity means a condition feeling cold at a temperature when one should not feel so. Cold hypersensitivity has been diagnosed based on the patient's subjective complaints. But these days, cold hypersensitivity can be diagnosed by the help of D.I.T.I.(Digital Infrared Thermal Imaging) This study is designed to verify the validity of diagnosis of cold hypersensitivity by D.I.T.I. Thermographic findings of 100 outpatients who visited the Kangnam Korean Hospital, KyungHee University, Seoul, Korea, from June 2000 to November 2000 were analyzed. The experimental group consisted of 50 patients who complained cold hypersensitivity, and for the control group, 50 patients who did not complain cold hypersensitivity. For the diagnosis of cold hypersensitivity of the hands, thermographic measurements were performed on two pairs of areas(palm-upper arm and back of hand-upper arm). And for that of the feet, other two pairs of areas(anterior thigh-top of the feet and posterior thigh-heel). When the criterion for thermal deviation between the palm and the upper arm was appointed as higher than $0.3^{\circ}C$, the sensitivity was 94.0% and the specificity, 90.0%. And when the criterion for that between the anterior thigh and the top of feet was appointed higher than $2.0^{\circ}C$, the sensitivity was 94.0% and the specificity, 76.0%. Through this study, the diagnostic standard for cold hypersensitivity of hands and feet could be presented.

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The Standard in family resource management: Diagnosis and future direction (가정관리에서의 생활표준 : 진단과 과제)

  • 이연숙
    • Journal of Family Resource Management and Policy Review
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    • v.2 no.2
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    • pp.39-51
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    • 1998
  • The purpose of this study were to clarify the concepts, origin, and roles of standard, to diagnose the standard developed in contemporary family living, and to suggest desirable standard for effective home management. Five prevalent standards found in managing family resources were convenient-oriented standard, others-oriented standard, material-oriented standard, individual-oriented standard, and frugal-oriented standard. The changes of social and cultural environments and family resources affecting these standards and some problems resulted from these were discussed. Considering undesirable effect of old standards on resource management, family relationship, quality of life, and society in general, these old standards should be replaced by compromise convenient-oriented standard, self-oriented standard, being-oriented, joint-oriented standard, and new frugal-oriented standard. Some recommendations for future research, publicity, and policy were suggested.

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Implementation of Radial Pulse Diagnosis System using Inyoung-Cheongu Comparison Method (인영.촌구 대비법을 이용한 맥 진단 시스템 구현)

  • Lee, Ho-Jae;Park, Young-Bae;Huh, Woong
    • Journal of Biomedical Engineering Research
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    • v.14 no.1
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    • pp.73-80
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    • 1993
  • This paper describes the implementation of a computerized radial pulse diagnosis by Elds of a clinical expert. On this base, we composed of the radial pulse diagnosis system in korean traditional medicine. The system composed of a radial pulse wave detection system and a radial pulse diag nosis system. With a detection system, we detected Inyoung and Cheongu radial pulse wave and processed It. Then, we have got the characteristic parameters of radial pulse wave and also quantified thats according to the method of Inyoung-Cheongu Comparison Radial Pulse Diagnosis. We defined the jugement standard of radial Pulse diagnosis system and then we confirmed the PossibiliLy for realization of automatic radial Pulse diagnosis in korean traditional medicine.

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Immobilization of Heparin onto the Polyurethane

  • Cho, Chong-Su;Kim, Sung-Wan
    • Journal of Biomedical Engineering Research
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    • v.7 no.2
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    • pp.147-150
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    • 1986
  • This paper describes the implementation of a computerized radial pulse diagnosis by aids of a clinical expert. On this base, we composed of the radial pulse diagnosis system in korean traditional medicine. The system composed of a radial pulse wave detection system and a radial pulse diagnosis system. With a detection system, we detected Inyoung and Cheongu radial pulse wave and processed it. Then, we have got the characteristic parameters of radial pulse wave and also quantified that according to the method of Inyoung-Cheongu Comparison Radial Pulse Diagnosis. We defined the jugement standard of radial pulse diagnosis system and then we confirmed the possibility for realization of automatic radial pulse diagnosis in korean traditional medicine.

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Adnexal Torsion Misdiagnosed as Periappendiceal Abscess in a Child (소아에서 충수주위농양으로 오진된 자궁부속기 염전)

  • Jeong, Yeon-Jun;Kim, Jae-Chun
    • Advances in pediatric surgery
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    • v.9 no.1
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    • pp.57-60
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    • 2003
  • A 4 year old female with acute lower abdominal pain was admitted with the diagnosis of periappendiceal abscess made by ultrasonography. At laparotomy, the appendix was normal, but the left ovary was twisted and necrotic. Appendectomy and left salpingo-oophorectomy were performed. The pathology of the appendix was normal, and the left tube and ovary were ischemic and had hemorrhagic necrosis. Pediatric adnexal torsion may be difficult to diagnosis clinically. Sonography is the preferred imaging study. It usually confirms a pelvic mass but may not establish the diagnosis. The correct diagnosis of adnexal torsion is often made at exploration. The most common erroneous diagnosis is acute appendicitis or periappendiceal abscess. Therapy for adnexal torsion remains controversial. While extirpation has been the standard of treatment in the past, there are current proponents of conservative therapy with adnexal sparing. Early diagnosis may lead to more frequent salvage of affected adnexa.

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The Study on the Clinical Application of the Methods of Sasang Constitution Diagnosis (사상체질(四象體質) 진단법(診斷法)(용모(容貌), 체형(體形), 심성(心性))의 임상적(臨床的) 적용(適用)에 관한 연구(硏究))

  • Kim, Jong-Weon;Jung, Won-Gyo
    • Journal of Sasang Constitutional Medicine
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    • v.12 no.2
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    • pp.34-42
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    • 2000
  • Background and Purpose ; Sasang Constitutional medicine is dividing individual's constitutions into four categories. Determination of an individual's constitution however, can be different according to what diagnostic standards apply. In this study, We investigated how different the applying results of the three diagnostic standards-the yong-mo(容貌), the body type(體形), and the mind(心性)-are and what the inter-diagnostic standard agreement is. Methods ; 36 patients in cerebral-infarction, admitted into the Dong-Eui Korean hospital from 1. May. 2000 to 12. October. 2000, were diagnosed by three diagnostic standards - the yong-mo(容貌), the body type(體形), and the mind(心性). Each patient was treated by Sasang constitutional medicine. The agreement of the final constitutional diagnosis and the result of each diagnostic standard was analyzed. Results 1. The number of Taeeumin was 13(40.6%), Soyangin was 10(31.3%), Soeumin was 9(28.1%). 2. In terms of analysis on the agreement of the final constitutional diagnosis and the result of each diagnostic standard, the yong-mo(容貌) showed the highest agreement of 93.8%, followed by 68.8% of the mind(心性), and the body type(體形) showed the lowest agreement of 53.1%. 3. The yong-mo(容貌) standard showed high diagnostic rate of the three constitutions(Soyangin, Taeeumin, Soeumin) generally and diagnostic rate of Soeumin was especially high. The body type(體形) standard showed low diagnostic rate of Taeeumin, and high diagnostic rate of Soeumin. The mind(心性) standard showed low diagnostic rate of Soeumin. 4. In terms of analysis on the agreement of inter-diagnostic standard result, the yong-mo(容貌) and the mind(心性) show the highest agreement, the mind(心性) and the body type(體形) showed the lowest agreement. 5. If the results come out that the three diagnostic standards have no concentration on one constitution, it was effective to choose the result of the yong-mo(容貌) standard. If it is the case the result of inter-diagnostic standard agreed more than two, it was better to follow the two agreed result than to follow the result of one specific characteristic standard.

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Diagnostic value of two modes of cone-beam computed tomography in evaluation of simulated external root resorption: an in vitro study

  • Dalili, Zahra;Taramsari, Mehran;Mehr, Seyed Zoheir Mousavi;Salamat, Fatemeh
    • Imaging Science in Dentistry
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    • v.42 no.1
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    • pp.19-24
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    • 2012
  • Purpose : Field of view and voxel resolution of cone beam computed tomography (CBCT) might affect the diagnostic capability. This study was performed to compare between the standard and HiRes zoom modes in the diagnosis of external root resorption (ERR) using CBCT. Materials and Methods : Sixty three small cavities (0.25 mm depth and 0.5 mm diameter) were simulated on the buccal, lingual, and proximal surfaces at three different levels of 16 roots of teeth. After covering the root with nail varnish, the roots were inserted in the sockets and the model was placed in a water-containing lacuna. CBCT scans were taken in both standard and HiRes zoom modes using NewTom VG (QR srl Company, Verona, Italy). Then, an observer assessed the images to determine the presence or absence of the cavities. This process was repeated by increasing the size and depth of cavities to 0.5 mm depth and 1 mm diameter. Data were analyzed by McNemar test. The sensitivity, specificity, positive predictive value, negative predictive value, and likelihood ratio in evaluation of the simulated cavities were calculated. Results : There was a significant difference between the two imaging modes in diagnosing the shallow cavities (p=0.02).The sensitivity of the standard zoom in detecting the shallow cavities was lower than that of the HiRes zoom. The likelihood ratio of the HiRes zoom was higher in the diagnosis of both cavity types. Conclusion : This study suggested that a smaller voxel size in the HiRes zoom mode of CBCT is preferred for diagnosis of ERR.