• Title/Summary/Keyword: diagnostic features

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A ProstateSegmentationofTRUS ImageusingSupport VectorsandSnake-likeContour (서포트 벡터와 뱀형상 윤곽선을 이용한 TRUS 영상의 전립선 분할)

  • Park, Jae Heung;Se, Yeong Geon
    • Journal of the Korea Society of Computer and Information
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    • v.17 no.12
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    • pp.101-109
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    • 2012
  • In many diagnostic and treatment procedures for prostate disease accurate detection of prostate boundaries in transrectal ultrasound(TRUS) images is required. This is a challenging and difficult task due to weak prostate boundaries, speckle noise and the short range of gray levels. In this paper a method for automatic prostate segmentation inTRUS images using support vectors and snake-like contour is presented. This method involves preprocessing, extracting Gabor feature, training, and prostate segmentation. Gabor filter bank for extracting the texture features has been implemented. A support vector machine(SVM) for training step has been used to get each feature of prostate and nonprostate. The boundary of prostate is extracted by the snake-like contour algorithm. The results showed that this new algorithm extracted the prostate boundary with less than 9.3% relative to boundary provided manually by experts.

Effusion Cytology of Metastatic Rhabdomyosarcoma - Report of Three Cases - (횡문근육종의 체액 세포학적 소견 - 3례 보고 -)

  • Koh, Jae-Soo;Ha, Chang-Won;Cho, Kyung-Ja;Jang, Ja-June
    • The Korean Journal of Cytopathology
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    • v.4 no.1
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    • pp.74-76
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    • 1993
  • Cytologic findings of pleural effusion in three cases of rhabdomyosarcoma are reported. Case 1 was a pleomorphic rhabdomyosarcoma which had devoped at the chest wall of an elderly male patient and caused pleural effusion. The cytologic features were consistent with pleomorphic rhabdomyosarcoma, that was, showing loose clusters, cellular pleomorphism, and abundant finely vesicular cytoplasm. Cases 2 and 3 were embryonal rhabdomyosarcomas in young adults. Primary site was the oral cavity in case 1, but unknown in case 2 and case 3. The effusion cytology was similar in these cases. Clustered or isolated small round cells with hyperchromatic nuclei and scanty cytoplasm were smeared. The cohesiveness of tumor cells was weak and the cells did not show linear arrangement or nuclear melding. Effusion cytology in a sarcoma patient would be diagnostic when the primary site and the type of sarcoma were already known.

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Clinical Observation of $Beh{\varsigma}et's$ Disease Patients by Oriental medicine (베체트 병에 대한 임상적 고찰)

  • Kim, Hae-jung;Chae, Byung-yoon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.12 no.1
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    • pp.387-395
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    • 1999
  • This observation was aimed to evaluate the clinical manifestations and clinical incidence of $Beh{\varsigma}et's$ Disease. It was records of patients seen in the period between January 1992 and December 1998 at the Department of Dermatology, Oriental Medical Hospital, Kyung Hee University. $Beh{\varsigma}et's$ Disease is a chronic, systemic disease which manifests itself as recurrent, multiple lesions in many organs, including the skin. The clinical features of $Beh{\varsigma}et's$ Disease are important as there is no reliable method of laboratory diagnosis. The results were summarized as follows; 1. The total number of patients were 34, including $42\%$ male and $52\%# female. 2. The pick incidence of age group was 30 to 39($44\%$). 3. The most frequent duration was from 2 years to 5 years($41\%$). 4. According to Diagnostic Criteria of the $Beh{\varsigma}et's$ Disease Research committee of Japan, there were $41\%\;of\;Incomplete\;type,\;29\%\;of\;Suspected,\;24\%\;of\;Complete,\;6\%$ of Passible. 5. The most common major symtom is a oral u1cer($91\%$), and there were erythema nodosum like lesion($79\%$), genital ulcer($56\%$), problem of the eyes($38\%$). 6. The most common minor symtom was arthritis($32\%$). 7. The first main symtom were oral ulcer($50\%$), erythema nodosum like lesion($26\%$), problem of the eyes($18\%$). 8. There were 2 cases of Intestinal $Beh{\varsigma}et's$ Disease and 5 cases of uveitis. 9. The most frequently treated prescription was Eunhwasagantang which occupied 79 of all, Gamisopunghwalhultang($44\%$) a.nd Gamipadoksan($41\%$), Gamiguakjungsan($24\%$) in that order of frequency.

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A Case of Canine Ectopic Parasitism of Heartworm in the Systemic Circulation (개에서 발생한 전신 순환계의 심장사상충 이소기생 증례)

  • Jang, Hyo-Mi;Lee, Hee-Chun;Jung, Dong-In
    • Journal of Veterinary Clinics
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    • v.32 no.4
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    • pp.347-351
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    • 2015
  • A 3-year-old intact female Dachshund was referred due to paraplegia and cool extremities. History taking, physical examination, neurological examination, and blood profiling studies were evaluated to determine the diagnosis. Based on abdominal ultrasound and echocardiograph, features suggestive of adult heartworm were detected in aberrant places. The result of enzyme-linked immunosorbent assay (ELISA) testing with a commercial heartworm antigen kit was positive. The dog fell into a comatose state, and the client requested the dog be euthanized. On post-mortem examination, the patient was diagnosed with ectopic parasitism of heartworm in the left side of heart, aorta, aorta abdominalis, and iliac arteries, a circumstance that induced systemic thromboembolism. This case report describes the clinical, diagnostic imaging, and necropsy findings of canine ectopic parasitism of heartworm.

Extrahepatic Biliary Obstruction Secondary to Traumatic Diaphragmatic Hernia in Dog (개에서의 횡격막 탈장에 의한 간외담도폐색)

  • Yoon, Young-Min;Jeong, Dong-In;Yeon, Seong-Chan;Lee, Hee-Chun
    • Journal of Veterinary Clinics
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    • v.31 no.6
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    • pp.531-534
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    • 2014
  • A 3-year-old intact mixed hunting dog was referred to Gyeongsang Animal Medical Center with the clinical signs of vomiting, dyspnea, anorexia. The dogs had traumatic history that wounded at abdominal wall during the wild boar hunting 2 week ago. The dogs was diagnosed as extrahepatic biliary tract obstruction (EHBO) secondary to traumatic hernia. Diagnosis was based on radiographic features of a diaphragmatic hernia on survey radiography, dilated bile duct in abdominal ultrasonography and complete recovery due to the return of displaced organs into the peritoneal cavity and repair of the diaphragmatic rent. Diagnostic imaging and surgical intervention may result in a favorable outcome in dog with post hepatic obstruction secondary to diaphragmatic hernia. This case emphasizes the strangulation of bile duct by diaphragmatic rupture could be the cause of EHBO.

Changing Patterns of Acute Phase Proteins and Inflammatory Mediators in Experimental Caprine Coccidiosis

  • Hashemnia, Mohammad;Khodakaram-Tafti, Azizollah;Razavi, Seyed Mostafa;Nazifi, Saeed
    • Parasites, Hosts and Diseases
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    • v.49 no.3
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    • pp.213-219
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    • 2011
  • This experiment was conducted to assess the changing patterns and relative values of acute phase proteins and inflammatory cytokines in experimental caprine coccidiosis. Eighteen newborn kids were allocated to 3 equal groups. Two groups, A and B, were inoculated with a single dose of $1{\times}10^3$ and$1{\times}10^5$sporulated oocysts of Eimeria arloingi, respectively. The third group, C, received distilled water as the control. Blood samples were collected from the jugular vein of each kid in both groups before inoculation and at days 7, 14, 21, 28, 35, and 42 post-inoculation (PI), and the levels of haptoglobin (Hp), serum amyloid A (SAA), TNF-${\alpha}$, and IFN-${\gamma}$ were measured. For histopathological examinations, 2 kids were selected from each group, euthanized, and necropsied on day 42 PI. Mean Hp concentrations in groups A and B (0.34 and 0.68 g/L) at day 7 PI were 3.2 and 6.3 times higher than the levels before inoculation. The mean SAA concentrations in groups A and B (25.6 and 83.5 ${\mu}g$/ml) at day 7 PI were 4.2 and 13.7 times higher than the levels before inoculation. The magnitude and duration of the Hp and SAA responses correlated well with the inoculation doses and the severity of the clinical signs and diarrhea in kids. These results were consistent with the histopathological features, which showed advanced widespread lesions in group B. In both groups, significant correlations were observed for TNF-${\alpha}$ and IFN-${\gamma}$ with SAA and Hp, respectively. In conclusion, Hp and SAA can be useful non-specific diagnostic indicators in caprine coccidiosis.

Sonographic Findings of Second Branchial Cleft Cysts; Variable Appearances and Helpful Diagnostic Findings (제2새열 낭종의 초음파 소견;다양한 소견들과 진단에 도움이 될 만한 소견들)

  • Kim, Heung-Cheol;Lee, Jun-Ho;NamKung, Sook;Hong, Myung-Sun;Hwang, Im-Kyung
    • Korean Journal of Head & Neck Oncology
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    • v.24 no.1
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    • pp.53-56
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    • 2008
  • Objectives:The purpose of this study was to evaluate the variable sonographic features in addition to classic findings and to find the helpful characteristic findings for diagnosis of branchial cleft cysts. Subjects and Methods:We retrospectively analyzed the sonographic finding of 16 histopathologically proven branchial cleft cysts. Assessment involved the following variables : location related to carotid artery, size, cyst wall, border, margin, shape, internal echotexture, post echoic enhancement, orientation of longitudinal axis relative to the long axis of the neck, and tapering edge. Results:Most branchial cleft cysts were seen as well defined(15/16), oval shape(13/16), smooth inner (12/16) and outer margin(13/16), and post echoic enhancement(16/16). Their diameter varied from 1 to 6cm (mean 3.3cm). The branchial cleft cysts showed variable internal echopatterns;hyperechogenicity or pseudosolid appearance(1/16), heterogeneous echogenicity(4/16) in addition to classic form of anechoic(5/16) or hypoechoic internal echogenicity(6/16). Longitudinal axis of most branchial cleft cysts were arranged in the direction of the long axis of the neck(13/16) and some branchial cleft cysts had tapering edge(6/16). Conclusion:If both atypical sonographic findings and location are showed, longitudinal arrangement of long axis and tapering edge of branchial cleft cysts are helpful findings for differential diagnosis.

Usefulness of Computed Tomographic Angiography in the Detection and Evaluation of Aneurysms of the Circle of Willis (Willis환 내 뇌동맥류 진단시 전산화단층촬영 뇌혈관 조영술의 유용성)

  • Lee, Hyuk Gi;Cho, Jae Hoon;Lee, Sung Lak;Kang, Dong Gee;Kim, Sang Chul
    • Journal of Korean Neurosurgical Society
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    • v.29 no.3
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    • pp.345-352
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    • 2000
  • Objective : The purpose of this study was to compare computed tomographic angiography(CTA) with conventional cerebral angiography(CCA) and to assess usefulness of CTA in detection and anatomic definition of intracranial aneurysms of the circle of Willis in subarachnoid hemorrhage. Patients and Methods : Fifty consecutive patients with known or suspected intracranial saccular aneurysms underwent CTA with preoperative CCA from 1997 to 1999. Using surface shaded display post-processing technique, CTA was interpreted for the presence, location of aneurysms and anatomic features. The image obtained with CTA was then compared with CCA image. Results : In 47 patients, CCA revealed 57 cerebral aneurysms and CTA revealed 54 aneurysms. Two of the 57 cerebral aneurysms were located outside of the imaging volume of CTA and one case was misdiagnosed. The sensitivity of CTA was 94.7% and the specificity was 100%. The results obtained with CTA were, compared with the results obtained with CCA, equal in determining dome shape, direction and lobularity. However, CTA provided a 3-dimensional representation of aneurysmal lesion very useful for surgical planning. Moreover, CTA was useful for rapid and relatively noninvasive detection of aneurysms in the circle of Willis. Conclusion : CTA can be a diagnostic tool for the patients with acute subarachnoid hemorrhage due to a ruptured aneurysm of the circle of Willis and provides adequate anatomic detail for surgical planning, especially to complex cerebral aneurysms. However, we think CCA is necessary because of CTA limitations including its difficulty in detecting unusually located aneurysms(including those in cavernous sinus or distal artery) and combined vascular lesion (including arteriovenous malformation) and acquiring dynamic flow information.

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European Integration Processes for the Development of Future Foreign Language Specialists in the Information Society

  • Lazarenko, Natalia;Zadorozhna, Olga;Prybora, Tetiana;Shevchuk, Аndrii;Sulym, Volodymyr;Rudnytska, Nataliya
    • International Journal of Computer Science & Network Security
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    • v.21 no.12spc
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    • pp.427-436
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    • 2021
  • The article reveals and theoretically substantiates the trends of foreign language teachers' professional training in universities of Ukraine in terms of European integration, which are systematized in three areas: macro-level (system of education), meso-level (universities) and micro-level (subjects of educational process). The article aims to substantiate the trends of foreign language teacher training in the context of European integration and the main directions of creative use of constructive ideas of European experience in the innovative development of education. The article lights up the system for improving foreign language teacher training in universities, which is based on updated goals, content and approaches to the implementation of basic concepts, principles and features of teacher training in European experience, enable us to improve the quality of teacher training, its competitiveness in the European labor market. In the article developed the conceptual model of strategic development of the university in the conditions of European integration. It is emphasized that information technologies provide great opportunities for the development of professional skills and intellectual potential of future professionals. At present, the computerization of the educational process in higher education institutions is considered as one of the first and most promising areas for improving the quality of education. The article offered directions of internationalization of educational activity of university in the conditions of European integration. Diagnostic tools for the development of the university in terms of integration into the European educational space, individual rating and ranking of structural units of the university have been developed; main directions of activity of the laboratory of the skill of the teacher of higher school and methodical recommendations on the creation and the organization of work of scientific laboratories.

Middle School Students' Observational Features during Geological Field Trip (야외 지질 답사에서 중학생들의 암석 관찰 특성)

  • Kang, Hyeonji;Shin, Donghee
    • Journal of the Korean earth science society
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    • v.42 no.5
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    • pp.571-587
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    • 2021
  • This study aims to investigate the problem recognition and clue capture processes of the observation stage in a geological field trip using abductive inquiry. To this end, eight outdoor geological programs were developed in the order of diagnostic evaluation, outdoor geological fieldwork, and review. Six middle-school students participated in these programs The geological field trip was conducted twice, followed by data provision, observation, rule generation, hypothesis generation, and final hypothesis presentation. Outdoor geological fieldwork recordings and student activity sheets were collected and analyzed qualitatively. From these data, three aspects of student observations emerged during the geological fieldwork: The characteristics of each pattern were subdivided into the geological importance of the clues, attention, type of clues, observation characteristics (attention factor), clue utilization, and clue deletion. Here, by combining these results, we propose educational applications that correspond to each aspect.