• Title/Summary/Keyword: diagnostic features

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Comparison of Different Anatomic, Hemodynamic, and Pathophysiological Types of Atrial Septal Defect in Three Small Dogs (세 마리의 소형견에서 발생한 다양한 해부학적, 혈역학적, 병태생리학적 타입의 심방중격결손 비교 고찰 사례)

  • Kim, Jung-Hyun;Moon, So-Jeung;Kang, Min-Hee;Kim, Seung-Gon;Park, Hee-Myung
    • Journal of Veterinary Clinics
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    • v.28 no.6
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    • pp.586-590
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    • 2011
  • Three small breed dogs weighing less 5 kg were admitted with dyspnea and cardiac murmurs. One dog had primum type ASD and chylothorax was concurrently noted. Two dogs had secundum type ASD with and without concomitant pulmonic stenosis. Although medical treatment was attempted, two dogs with secundum type ASD died and a dog with primum type ASD was successfully managed with medication. Defects were confirmed by the postmortem examination in two cases. We first describe the comparison of clinical and diagnostic features in different anatomic, hemodynamic, and pathophysiological types of ASD in small breed dogs and they show some differences with ASD in large breed dogs.

Total Information System for Urban Regeneration : City and District Level Decline Diagnostic System (도시재생 종합정보시스템 구축 - 시군구단위 쇠퇴진단시스템 구현을 중심으로 -)

  • Yang, Dong-Suk;Yu, Yeong-Hwa
    • Land and Housing Review
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    • v.2 no.3
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    • pp.249-258
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    • 2011
  • In order to achieve an efficient urban regeneration of the nation, it is required to determine the extent of decline nation-wide and the declined areas for each district and also to evaluate the potentials of the concerned areas. For this task to be accomplished, a construction of a comprehensive diagnostic system based on spatial information considering diversity and complexity is required. In this study, a total information system architecture for urban regeneration is designed as part of the construction of such a diagnostic system. In order to develop the system, a city and district level unit decline diagnostic indicators has been constructed and a decline diagnostic system has been developed. Also, a scheme to promote the advancement of the system is proposed. The DB construction is based on the city and district level nation-wide and metadata for the concerned level is constructed as well. The system is based on the Open API and designed to be flexible for extension. Also, an RIA-based intuitive UI has been implemented. Main features of the system consist of the management of the indicators, diagnostic analysis (city and district level decline diagnosis), related information, etc. As for methods for the advancement, an information model in consideration of the spation relations of the urban regeneration DB has been designed and application methods of semantic webs. Also, for improvement methods for district unit analytical model, district level analysis models, GIS based spatial analysis platforms and linked utiliation of KOPSS analysis modules are suggested. A use of a total information system for urban regeneration is anticipated to facilitate concerned policy making through the identification of the status of city declines to identify and the understanding of the demands for regeneration.

Early Diagnosis of KBG Syndrome Using Diagnostic Exome Sequencing (Diagnostic exome sequencing을 통한 KBG 증후군의 조기 진단)

  • Hong, Jun Ho;Kim, Se Hee;Lee, Seung Tae;Choi, Jong Rak;Kang, Hoon Chul;Lee, Joon Soo;Kim, Heung Dong
    • Journal of the Korean Child Neurology Society
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    • v.26 no.4
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    • pp.272-275
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    • 2018
  • KBG syndrome is a rare neurodevelopmental disorder characterized by intellectual disability, skeletal anomalies, short stature, craniofacial dysmorphism, and macrodontia. ANKRD11 gene mutation and 16q24.3 microdeletion have been reported to cause KBG syndrome. Here, we report two patients with ANKRD11 mutations who initially presented with neurologic symptoms such as developmental delay and seizures. Patient 1 was a 23-month-old boy who presented with a global developmental delay. Language delay was the most dominant feature. He had hypertelorism, hearing impairment, and behavior problems characterized as hyperactivity. A c.1903_1907delAAACA (p.Lys635GInfsTer26) mutation in ANKRD11 was identified with diagnostic exome sequencing. Patient 2 was a 14-month-old boy with developmental delay and seizure. He also had atrial septum defect, and ventricular septal defect. Generalized tonic seizures began at the age of 8 months. Electroencephalography showed generalized sharp and slow wave pattern. Seizures did not respond to antiepileptic drugs. A loss of function mutation c.5350_5351delTC (p.ser1784HisfsTer12) in ANKRD11 was identified with diagnostic exome sequencing. In both cases, characteristic features of KBG syndrome such as short stature or macrodontia, were absent, and they visited the hospital due to neurological symptoms. These findings suggest that more patients with mild phenotypes of KBG syndrome are being recognized with advances in diagnostic exome sequencing genetic technologies.

Cytologic Diagnosis of Hepatocellular Carcinoma by Fine-Needle Aspiration Biopsy (세침 흡인 생검에 의한 간암의 세포학적 진단)

  • Kim, Ki-Kwon;Chang, Eun-Sook
    • The Korean Journal of Cytopathology
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    • v.1 no.1
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    • pp.18-26
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    • 1990
  • CT guided percutaneous fine-needle aspiration (FNA) of the liver for both cytologic and histologic examination has great value in diagnosing liver malignancy. From March, 1986 to April, 1990, 62 patients with the clinical impression of liver malignancy underwent CT guided percutaneous FNA biopsy. Of these, 43 cases were reviewed for this study, 19 were reported to be liver cell carcinoma, 2 were adenocarcinoma, 11 were reported as anaplastic cell present, and the rest (11 cases) were negative (9) or necrotic (2). Among the 11 cases of the last group, 9 were diagnosed as liver cell carcinoma and 2 were necrotic histologically. Retrospective review, in order to clarify the cause of cytologic diagnostic error, of both cytologic and histologic slides of all cases showed discordance of 23% between these diagnoses and sensitivity is 93.9% and specificity is 90.9%. The reasons were as follows ; 1) the lack of awareness of tumor cells of well differentiated liver cell carcinoma (4 cases), 2) missed tumor cells due to too scanty cellularity (1 case), 3) improper smear (2 cases) and no tumor cell In the cytologic smears (3 cases). In such cases, at the initiation of FNA, a correct diagnosis of liver malignancy could only be made by a combination of cytologic and histologic examinations. However after three years' experience we can conclude that cytomorphologic features of liver cell carcinoma are sufficiently distinctive from other liver malignancies to be diagnostic.

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Diagnostic Features of Fine Needle Aspiration Cytology of Pleomorphic Adenoma, Adenoid Cystic Carcinoma, and Mucoepidermoid Carcinoma of Salivary Gland (타액선 종양 중 다형성 선종, 선양 낭포성암, 및 점막 표피암의 세침흡인 세포학적 감별)

  • Nam, Eun-Sook;Jo, Won-Bo;Han, Jung-Ho;Kim, In-Sun
    • The Korean Journal of Cytopathology
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    • v.1 no.1
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    • pp.60-67
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    • 1990
  • To evaluate the diagnostic findings of salivary gland tumors, we reexamined aspiration cytology smears of 7 cases of pleomorphic adenoma, 3 cases of adenoid cystic carcinoma, and 3 cases of mucoepidermoid carcinoma, performed during April 1986 to March 1990, which were comfirmed by surgical excision and histologic diagnosis. The results obtained are summarized as follows : 1. All cases of pleomorphic adenoma showed branching cellular clusters of epithelial and myoepithelial cells. Acellular elements including myxomatous and chondroid components were observed. There were no cellular pleomorphism and nucleoli. Keratinizing squamous epithelial cells and keratin pearls were noted. 2. The smears of adenoid cystic carcinoma showed cell bails or cell cords containing a central hyaline core. Nuclear atypism and the nucleoli were frequently observed. There were no keratinizing squamous epithelial cells. 3. The smears of mucoepidermoid carcinoma showed mainly sheets or clusters of intermediate cells and some mucin-producing cells. Some nuclear pleomorphism was observed. Mucinous material and many inflammatory cells were present in the background.

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Clinical Application of Ultrasound-Guided Thyroid Fine Needle Aspiration Biopsy and Thinprep Cytology Test in Diagnosis of Thyroid Disease

  • Wei, Ying;Lu, Yao;Li, Chenxi
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.10
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    • pp.4689-4692
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    • 2016
  • Purpose: To study the clinical application value of ultrasound guided thyroid fine needle aspiration biopsy and thinprep cytology testing in diagnosis of thyroid disease. Methods: A total of 78 patients with thyroid nodules were enrolled, 34 males and 44 females, aged 33-64 years old with mean age of 47.6 years. All underwent thyroid module fine needle puncture after surgery to assess cell pathology and histopathological features. Results: Sufficient specimens were obtained from all of 78 patients, the cytological results of 73 cases (93.6 %) being consistent with pathological results. While 20 cases (25.6 %) were malignant tumors, 44 (56.4 %) were benign and 9 (11.5 %) were non-tumor lesions. The sensitivity of benign and malignant thyroid nodule by thyroid fine needle puncture was 90.9 %, specificity was 98.1 % and the positive predictive value was 96.3 %. Conclusions: It is demonstrated that ultrasound-guided thyroid fine needle aspiration biopsy and thinprep cytology testing have diagnostic value in clinical application for thyroid disease,showing good diagnostic coincidence rates with histopathological examination. They can thus be regarded as safe and effective for preoperative diagnosis and providing an appropriate basis for selection of surgery.

Fine Needle Aspiration Cytology of Metastatic Melanoma in the Breast - A Case Report - (유방에 전이한 악성 흑색종의 세침흡인 세포학적 소견 - 1예 보고 -)

  • Oh, Young-Lyun;Ko, Young-Hyeh
    • The Korean Journal of Cytopathology
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    • v.9 no.1
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    • pp.111-115
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    • 1998
  • Although the characteristic cytologic features of melanoma have been well described the diagnosis of metastatic melanoma by fine needle aspiration cytology (FNAC) may be difficult in the case of amelanotic melanoma and in the absence of awareness of clinical history. Furthermore, when the breast is the site of initial presentation, it could simulate a primary breast carcinoma leading to misdiagnosis. The recognition of metastatic malignant melanoma in FNAC material is essential to avoid an unnecessary mastectomy and to ensure appropriate chemotherapy. We experienced a case of metastatic melanoma of breast which presented as solitary breast mass in a 56-year-old woman. She had a history of surgical excision of right foot for melanoma one year ago. The cytologic smears were composed of noncohesive epithelioid cells with round or eccentric nuclei, bi-or multi-nucleation, prominent nucleoli, fine chromatin, and intranuclear inclusions. The cytoplasm of tumor cells had scanty melanin pigment but were diffusely positive for S-100 protein.

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Identification of Open-Switch and Short-Switch Failure of Multilevel Inverters through DWT and ANN Approach using LabVIEW

  • Parimalasundar, E.;Vanitha, N. Suthanthira
    • Journal of Electrical Engineering and Technology
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    • v.10 no.6
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    • pp.2277-2287
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    • 2015
  • In recent times, multilevel inverters are given high priority in many large industrial drive applications. However, the reliability of multilevel inverters are mainly affected by the failure of power electronic switches. In this paper, open-switch and short-switch failure of multilevel inverters and its identification using a high performance diagnostic system is discussed. Experimental and simulation studies were carried out on five level cascaded H-Bridge multilevel inverter and its output voltage waveforms were analyzed at different switch fault cases and at different modulation index values. Salient frequency domain features of the output voltage signal were extracted using the discrete wavelet transform multi resolution signal decomposition technique. Real time application of the proposed fault diagnostic system was implemented through the LabVIEW software. Artificial neural network was trained offline using the Matlab software and the resultant network parameters were transferred to LabVIEW real time system. In the proposed system, it is possible to precisely identify the individual faulty switch (may be due to open-switch (or) short-switch failure) of multilevel inverters.

A Model-generated Circulation in the Yellow Sea and the East China Sea: I. Depth-mean Flow Fields

  • Jung, Kyung-Tae;Kang, Hyoun-Woo;So, Jae-Kwi;Lee, Ho-Jin
    • Ocean and Polar Research
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    • v.23 no.3
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    • pp.223-242
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    • 2001
  • This paper presents the depth-mean monthly variation in the circulation of the Yellow Sea and the East China Sea computed using a robust diagnostic model. The mixed three-dimensional finite-difference Galerkin function model developed by Lee et at. (2000, 2001) has been extended to take into account baroclinic effects and then used to calculate the depth-mean flow fields as part of the results. In addition to M2 tide and oceanic flows previously considered, the model has been driven by the monthly mean wind stresses from Na and Seo (1998), the density gradient calculated based on by GDEM data set released by US Navy. Model results are very encouraging in that many of observed features including Jeju Cyclonic Gyre and frontal eddies along the shelfside of the Kuroshio main stream and west of Kyushu, are satisfactorily reproduced and are expected to be of value in interpreting observations in various oceanograhic disciplines.

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Metastatic Lymphadenopathy in Kashmir Valley: A Clinicopathological Study

  • Qadri, Sumyra Khurshid;Hamdani, Nissar Hussain;Shah, Parveen;Baba, Khalil Mohammad
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.1
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    • pp.419-422
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    • 2014
  • Background: Lymphadenopathy is a common presentation in both benign and malignant diseases which need to be diagnosed without delay. Fine needle aspiration cytology (FNAC) helps us diagnose a disease and follow its course, including the response to therapy. Aim: This study aimed to analyze the clinicopathological features of metastatic lymphadenopathy and the diagnostic utility of FNAC in our setting. Materials and Methods: This two-year prospective study included all the patients with metastatic lymphadenopathy, diagnosed with FNAC. Results: A total of 412 cases (male:female ratio, 1.3:1; age range, 3 to 90 years) were studied. Supraclavicular lymph nodes were involved most commonly (50.5%). The commonest metastatic tumor was squamous cell carcinoma in general (30.1%) and in males (37.6%), and infiltrating ductal carcinoma (25.3%) in females. Lung, with 64 (15.5%) cases followed by esophagus, 60 (14.6%) cases; breast, 49 (11.9%) cases; skin, 32 (7.8%) cases; and stomach, 25 (6.1%) cases were the most common primary sites of malignancy. In 69 patients, excision biopsy was performed. Histopathological findings correlated well with that of cytology in all these cases. Conclusions: FNAC is an important tool in the diagnostic work up of metastatic lymphadenopathy, which in the hands of an experienced and skilful cytopathologist can avoid the need for excision biopsy.