• Title/Summary/Keyword: Medical Diagnosis

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On the characteristics of the Hamming distances in medical diagnosis (의학진단에 이용되는 해밍 거리의 특성 탐색)

  • Ahn, Jeong-Yong
    • Journal of the Korean Data and Information Science Society
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    • v.23 no.2
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    • pp.227-234
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    • 2012
  • Hamming distances in medical science are used for the diagnosis of diseases. The differences of the distances, however, are often very small, and is not in the general statistical form such as normal or chi-square distribution. In this study, we explore the characteristics and significance of the differences of Hamming distances generated in medical diagnosis.

Survey on Discordance Rate between Final Principal Diagnosis and Principal Diagnosis at Emergency Room (응급실 주진단명과 퇴원시 주진단명의 불일치도 조사)

  • Kim, Kwang Hwan;Seo, Sun Won;Won, Si Yeon;Park, Seok Gun;Kim, Seung Yul;Song, Hwa Sik;Kim, Kab Taug;Jo, Hey Kyung;Bu, You Kung;Lee, Hyun Kyung
    • Quality Improvement in Health Care
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    • v.5 no.2
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    • pp.216-223
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    • 1998
  • We surveyed the discordance rate of principal diagnosis made at emergency room(ER) & made at ward on discharge of the patients. Subjects were four hundred eighty cases who came to the ER of one third-line hospital from January 1, 1998 to January 31, 1998. The discordance rate was higher in patients admitted to medical department(8.2%) than surgical department(1.5%). If the patients were transferred to other department during hospital stay, discordance rate increased from 3.3% to 6.3%. In conclusion, discordance rate of principal diagnosis made at ER and made at ward was higher in patients with complicated problems. Medical record department should keep these findings in mind if it has a plan to support the management of ER record.

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Diagnostic Role of Survivin in Urinary Bladder Cancer

  • Srivastava, Anupam Kumar;Singh, Pankaj Kumar;Srivastava, Kirti;Singh, Dhramveer;Dalela, Divakar;Rath, Srikanta Kumar;Goel, Madhu Mati;Bhatt, Madan Lal Brahma
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.1
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    • pp.81-85
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    • 2013
  • Background: Early diagnosis of carcinoma of bladder remains a challenge. Survivin, a member of the inhibitor of apoptosis (IAP) protein family, is frequently activated in bladder carcinoma. The objective of this study was to investigate urinary survivin as a marker for diagnosis of urinary bladder. Materials and Methods: We examined urinary survivin concentration in 28 healthy individuals, 46 positive controls and 117 cases of histologically proven TCC prior to transurethral resection, using ELISA, and compared values with findings for urinary cytology. Results: Survivin was found to be significantly higher in the cancer group (P<0.05). A cut off value of 17.7 pg/ml was proposed, with an approximate sensitivity of 82.9% and specificity of 81.1% (P<0.0001), whereas urine cytology had a sensitivity of 66.7% and a specificity of 96.0%. Conclusions: Urinary survivin can be used as a non-invasive diagnostic biomarker for TCC bladder, both for primary and recurrent disease.

Standardization and unification of the terms and conditions used for diagnosis in oriental medicine (한의진단명과 진단요건의 표준화 연구)

  • Choi, Sun-Mi;Yang, Ki-Sang
    • Korean Journal of Oriental Medicine
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    • v.1 no.1
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    • pp.101-125
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    • 1995
  • The terminology used for oriental medicine has not yet been standardized so far and this might cause the problems in developing theories and clinical research of oriental medicine. To establish scientific backgroupd of oriental medicine, it is required that all the terminology used for oriental medicine should be standardized and unified. For more efficient oriental medical practice, the standardization, unification of the terms and conditions used for diagnosis in oriental medicine should be achieved. The aim of this study are as follows; 1. To provide clear and logical systems for the diagnosis of symptoms and diseases. 2. To provide the theoritical clearmess of oriental medicine and to promote the public facilities for study. 3. To provide ways of idea exchange and understanding between oriental medicine and various biological sciences. 4. To provide practical basis for hospital administration for oriental medicine.

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Molecular Genetic Diagnosis of Inherited Metabolic Diseases (유전성 대사 질환의 분자 유전학적 진단)

  • Ki, Chang-Seok;Lee, Su-Yon;Kim, Jong-Won
    • Journal of The Korean Society of Inherited Metabolic disease
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    • v.5 no.1
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    • pp.108-115
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    • 2005
  • Inherited metabolic diseases (IMD) comprise a large class of genetic diseases involving disorders of metabolism. The majorities are due to defects of single genes that code for enzymes that facilitate conversion of various substances into others. Because of the multiplicity of conditions, many different diagnostic tests are used for screening of IMD. Molecular genetic diagnosis is the detection of pathogenic mutations in DNA and/or RNA samples and is becoming a much more common practice in medicine today. The purpose of molecular genetic testing in IMD includes diagnostic testing, pre-symptomatic testing, carrier screening, prenatal diagnosis, preimplantation testing, and population screening. However, because of the complexity, difficulty in interpreting the result, and the ethical considerations, an understanding of technical, conceptual, and practical aspects of molecular genetic diagnosis is mandatory.

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CT Image Analysis of Hepatic Lesions Using CAD ; Fractal Texture Analysis

  • Hwang, Kyung-Hoon;Cheong, Ji-Wook;Lee, Jung-Chul;Lee, Hyung-Ji;Choi, Duck-Joo;Choe, Won-Sick
    • Proceedings of the Korea Information Processing Society Conference
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    • 2007.05a
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    • pp.326-327
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    • 2007
  • We investigated whether the CT images of hepatic lesions could be analyzed by computer-aided diagnosis (CAD) tool. We retrospectively reanalyzed 14 liver CT images (10 hepatocellular cancers and 4 benign liver lesions; patients who presented with hepatic masses). The hepatic lesions on CT were segmented by rectangular ROI technique and the morphologic features were extracted and quantitated using fractal texture analysis. The contrast enhancement of hepatic lesions was also quantified and added to the differential diagnosis. The best discriminating function combining the textural features and the values of contrast enhancement of the lesions was created using linear discriminant analysis. Textural feature analysis showed moderate accuracy in the differential diagnosis of hepatic lesions, but statistically insignificant. Combining textural analysis and contrast enhancement value resulted in improved diagnostic accuracy, but further studies are needed.

Meaning of "an auxiliary method of diagnosis" in the judgment of unlicensed medical practice by Korean medical doctors - Supreme Court Decision 2016Du51405 on August 18, 2023 - (한의사의 면허 외 행위 판단 기준에서 "진단의 보조 수단"의 의미 - 대법원 2023. 8. 18. 선고 2016두51405 판결 -)

  • Choi, Hyug Yong
    • The Korean Society of Law and Medicine
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    • v.24 no.3
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    • pp.125-153
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    • 2023
  • The Supreme Court's en banc decision on December 12, 2022 (docket number 2016Do21314) presented a new standard for determining whether the use of diagnostic medical devices by Korean medical doctors constitutes oriental medical doctors constitutes unlicensed medical practice. Based on this standard, it was determined that the use of ultrasound by Korean medical doctors was not an unlicensed medical practice. Supreme Court's Decision 2016Du51405 on August 18, 2023, is the first case in which a new standard was applied to determine that an Korean medical doctor's use of electroencephalography to diagnose Parkinson's disease and dementia was not an unlicensed medical practice. The Supreme Court abolished the previous standard that Western medical knowledge and technology should not be required for Korean medical doctors to use medical devices. However, it was unclear whether Western medical diagnosis of Korean medical doctors using diagnostic medical devices would be viewed as an an auxiliary method of diagnosis. Parkinson's disease and dementia are Western medical diagnoses. The Supreme Court judged that the Western medical diagnosis of Korean medical doctors was not an unlicensed medical practice. This clearly explains what an auxiliary method of diagnosis means. In addition, the Supreme Court excluded the principles of development and production of electroencephalography from its judgment criteria. Automatic extraction and automatic reading of test results were also excluded. The criminal court's view that the meaning of oriental medical practice should be clearly and strictly interpreted from the perspective of an oriental doctor, and it was clarified that diagnostic medical devices were excluded from criminal punishment unless it was clear that they were not related to the principle of oriental medical practice. As a result, the Supreme Court made it clear that the use of diagnostic medical devices is excluded from criminal punishment unless it is clear that they are not related to the principles of Korean medicine.

The Relationship between Left Ventricular Hypertrophy by Transthoracic Echocardiography and Dampness-Phlegm Diagnosis in Cerebral Infarction Patients (경흉부 심초음파를 이용한 뇌경색 환자의 좌심실 비대와 습담변증(濕痰辨證)의 관련성 연구)

  • Kwak, Seung-hyuk;Woo, Su-kyung;Lee, Eun-chan;Hyun, Sang-ho;Park, Joo-young;Jung, Woo-sang;Moon, Sang-kwan;Cho, Ki-ho;Park, Sung-uk;Ko, Chang-nam
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.13 no.1
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    • pp.13-23
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    • 2012
  • Object : The aim of this study was to assess the relationship between left ventricular hypertrophy and Dampness-Phlegm diagnosis in cerebral infarction patients. Methods : Among 227 of the total recruited patients, 59 patients were diagnosed as left ventricular hypertrophy. We assessed their general characteristics, risk factors, lab findings and Korean medical diagnosis. We compared the assessed variables between left ventricular hypertrophy group and non left ventricular group. We analyzed the relationship between left ventricular hypertrophy and risk factors. And we also analyzed the relationship between left ventricular hypertrophy and dampness-phlegm diagnosis. Results : 1. The rate of left ventricular hypertrophy in female patients was larger than the rate of male patients. 2. There were more patients finally diagnosed hypertension in left ventricular hypertrophy group. 3. According to the analysis about the rate of Dampness-phlegm related Index for Pattern Identification by left ventricular hypertrophy, Sallow complexion and obesity were significantly higher in the left ventricular hypertrophy than in the non left ventricular hypertrophy group. 4. In multivariate analysis, Dampness-phlegm group showed close relationship with left ventricular hypertrophy. Conclusions : According to the analysis, significance between dampness-phlegm diagnosis diagnosed group and left ventricular hypertrophy were clarified. These results can be utilized in the future as a basic material to be used for diagnosis and management of dampness-phlegm diagnosis on cardiovascular diseases.

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A Study on Left-Renying and Right-Qikou Pulse Diagnosis(左人迎·右氣口 脈診法) ('좌인영(左人迎)·우기구(右氣口)' 맥진법(脈診法)에 관(關)한 고찰(考察))

  • Kwak, Bumhee;Yoon, Jonghwa
    • Journal of Korean Medical classics
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    • v.33 no.1
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    • pp.89-101
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    • 2020
  • Objectives : The purpose of this study is to research the Left-Renying and Right-Qikou pulse diagnosis. Methods : We set up locations of the Renying pulse(人迎脈) and the Qikou pulse(氣口脈) on left hand and right hand. On the basis of the medical texts and papers, we researched the relations between the Left-Renying and Right-Qikou pulse diagnosis and the etiological factors(病因), background of appearance of the Left-Renying and Right-Qikou pulse diagnosis, and practical use of medical practitioners of many generations to the Left-Renying and Right-Qikou pulse diagnosis. Results & Conclusions : The Left-Renying and Right-Qikou pulse diagnosis is a method to diagnosis the etiological factors, while it could also be assumed as a tool to apply herbal medicine. This assumption could be made based on the seventh volume of 『Maijing(脈經)』 of Wang Shuhe(王叔和). Chen Wuze(陳無擇) emphasized its function to distinguish etiological factors in 『Sanyinjiyibingzhengfanglun(三因極一病證方論)』, as did Li Dongyuan(李東垣) in 『Neiwaishangbianhuolun(內外傷辨惑論)』. Meanwhile, the connection between Left-Renying and Right-Qikou pulse diagnosis and Zangfu(臟腑) seems to have first been made in 『Maiyu(脈語)』 of Wu Kun(吳昆), while 『Zhenjiazhengyan(診家正眼)』 of Li Zhongzi(李中梓) shows traces of progress since the 『Maiyu』.

A Study on the 「Zhenmairushijie」 by Zhang Yuansu in 『Chandobangronmaekkyulgipseong』 (『찬도방론맥결집성』의 장원소 「진맥입식해」 연구)

  • Jang, Woo-chang
    • Journal of Korean Medical classics
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    • v.32 no.1
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    • pp.1-27
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    • 2019
  • Objectives : By studying the contents of Zhang Yuansu's "Zhenmairushijie", which are introductory remarks of "Chandobangronmaekkyulgipseong", this study attempts to clarify the academic meaning expressed in it and consider his real significance. Methods : First, based on previous studies on Zhang Yuansu and "Wangshuhemaijue", this study divides the contents of "Zhenmairushijie" into 4 chapters and read out the original text. Next, based on Zhang Yuansu's notes and other writings on the original text, this study examines contents in detail. Finally, based on the discussion, this study examines the current significance of academic thoughts expressed in Zhang Yuansu's "Zhenmairushijie". Results & Conclusions : "Zhenmairushijie" emphasizes the combination of nervation and Byeonggi in the process of feeling the pulse for diagnosis, the combination of Byeonggi and Yongyak to declare that the feeling of the pulse for diagnosis is the principle of differential diagnosis. The combination principle of nervation-Byeonggi can be found in comprehensive pulse methods of "Nanjing", and the combination of Byeonggi-Yongyak should follow Ohaeng's Bubuheoshilsajeongbosa principle. Pulse methods of "Wangshuhemaijue" integrated Byeonggi expressed in Uigyeong and Byeonggi in Gyeongbang in the process of the feeling of the pulse for diagnosis to present the principle of diagnosis to perform Byeongjeungronchi. Therefore, "feeling the pulse for diagnosis ipsik" is not only an introductory remark of feeling the pulse for diagnosis, but an comprehensive remark of whole diagnosis as well. It is an introductory remark of the entire medical field due to the nature of oriental medicine which emphasizes diagnosis.