• 제목/요약/키워드: Morphologic

검색결과 701건 처리시간 0.024초

개재골 이식술을 이용한 만성재발성 악관절 탈구의 외과적 처치 (SURGICAL TREATMENT OF CHRONIC RECURRENT TMJ DISLOCATION WITH EMINOPLASTY THROUGH INTERPOSITIONAL BONE GRAFT)

  • 김성곤;최유성
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제21권2호
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    • pp.209-214
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    • 1999
  • Chronic recurrent TMJ dislocation results in difficulty of mastication, speaking, and swallowing due to the limitation of the mandibular movement. Etiologic factors are considered as the looseness of the capsule and ligaments, the decrease of the articular eminence, condylar morphologic change, muscular disharmony near by TMJ, and the decrease of the vertical length of the mandibular ramus. Treatment approach has been suggested that surgical methods are selected for the correction of the etiologic factors when conservative treatments are not effective. Many surgical methods have been reported such as eminectomy, eminence augmentation, condylotomy, and zygomatic arch down fracture technique. We performed the eminence augmentation through interpositional bone graft in chronic recurrent TMJ dislocation. This method leads to favorable postoperative result without recurrence and complication, so we report the case with related references.

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Maritime Object Segmentation and Tracking by using Radar and Visual Camera Integration

  • Hwang, Jae-Jeong;Cho, Sang-Gyu;Lee, Jung-Sik;Park, Sang-Hyon
    • Journal of information and communication convergence engineering
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    • 제8권4호
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    • pp.466-471
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    • 2010
  • We have proposed a method to detect and track moving ships using position from Radar and image processor. Real-time segmentation of moving regions in image sequences is a fundamental step in the radar-camera integrated system. Algorithms for segmentation of objects are implemented by composing of background subtraction, morphologic operation, connected components labeling, region growing, and minimum enclosing rectangle. Once the moving objects are detected, tracking is only performed upon pixels labeled as foreground with reduced additional computational burdens.

Solid Cerebellar Hemangioblastoma with Peritumoral Edema: 5-Years Follow up

  • Hwang, Kyoung Jin;Song, Soo Jin;Park, Key-Chung;Yoon, Sung Sang;Ahn, Tae-Beom
    • Investigative Magnetic Resonance Imaging
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    • 제19권4호
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    • pp.248-251
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    • 2015
  • Hemangioblastomas are angioblastic tumors of the central nervous system. Cerebellar hemangioblastomas are traditionally classified into two morphologic types-cystic and solid. Cystic hemangioblastomas are associated with peritumoral edema, but solid hemangioblastomas are not. We report a case of solid cerebellar hemangioblastoma with massive peritumoral edema. An 83-year-old female visited our hospital due to a sudden headache. Five years ago, she had been admitted to our hospital with similar headache and diagnosed with cerebellar hemangioblastoma. Follow-up brain MRI 5 years later showed an increased size of a homogeneous enhancing mass with aggravated peritumoral edema in the left lower cerebellar hemisphere. Cerebral angiography showed a highly vascularized mass in the cerebellum, which was compatible with a solid-type hemangioblastoma.

Anti-diabetic Agents from Medicinal Plants Inhibitory Activity of Schizonepeta tenuifolia Spikes on the Diabetogenesis by Streptozotocin in Mice

  • Kim, Chang-Jong;Lim, Jung-Sik;Cho, Seung-Kil
    • Archives of Pharmacal Research
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    • 제19권6호
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    • pp.441-446
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    • 1996
  • The Schizonepeta tenuifolia spikes (STS) have been used as a traditional folk medicine for antiinflammatory, analgesic, anti-pyretic and anti-spasmodic purpose in Korea. Phytosterols (mixture of campesterol 3.68%, stigmasterol 2.30% and ${\beta}$-sitosterol 94.02%) and hesperidin were isolated by chromatography from ether and n-BuOH fractions of STS respectively. These compounds significantly reduced the blood glucose level and lessened the loss of body weight and water consumption dose-dependently when administered at a i.p. doses of 10 and 20 mg/kg for 4 days after the i.v. injection of streptozotocin (I 80 mg/kg). In the morphologic study, these compounds showed protective activity on the pancreatic islets, especially .betha.-cells, from the degenerative changes by streptozotocin.

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환경적 스트레스에 의한 Helicobacter pylori의 형태 변화

  • 이학성;최태부
    • 한국미생물·생명공학회지
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    • 제25권3호
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    • pp.240-247
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    • 1997
  • Bacillary is the most common form of H. pylori observed during human infection. However, it is known that the morphology change of H. pylori from bacillary to coccoid can be occurred with a response to the environmental stresses such as the nutrient depletion, accumulation of toxic metabolites, pH alteration, and exposure to antimicrobial agents. The coccoid form of H. pylori, which is viable but non-culturable in vitro, seems to be the major cause of antibiotic resistancy and high reinfectability of H. pylori. In this regard, we studied the environmental factors that can induce the morphological change in vitro of H. pylori, and the change of fatty acid composition of plasma membrane. The morphological change from bacillary to coccoid could be observed with the depletion of nutrients, pH variation and reactive oxygen species added in the culture media. This morphologic conversion was paralleled by a dramatic decrease in unsaturated fatty acids and an increase in saturated fattv acids of plasma membrane. The change in composition of membrane fatty acid seems to be a kind of protection mechanism of H. pylori against these environmental stresses.

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레이저 층착법에 의한 비정질 탄소계 박막의 제작 (Fabrication of amorphous carbon thin film using laser ablation technique)

  • 류정탁;김연보;조경제
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 추계학술대회 논문집
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    • pp.484-487
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    • 2001
  • Amorphous carbon thin films were deposited using laser ablation technique on Si(100) substrates at different temperatures. In this study, effects of the substrate temperature on the properties of amorphous carbon films were systematically investigated. The surface morphologic and structural properties of the films were studied by scanning electron microscopy (SEM) and raman spectroscope, respectively. With increasing of the substrate temperature, the surface morphologies were changed singnificantly. Moreover the intensity ratio of D-band and G-band and the full width at half maximum of these bands were dependent on substrate temperatures.

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얼굴 형태학적 분석을 통한 사상체질 분류 시스템 설계 (Design on Sasang Constitution Classification System Using Face Morphologic Analysis)

  • 김봉현;조동욱;이세환;가민경;박선애
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2006년도 추계학술발표대회
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    • pp.97-100
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    • 2006
  • 사상의학은 한의학의 독특하고 뛰어난 의료 체계이나 체질 감별에 객관성이 확보되지 않아 원래의 가치를 인정 받지 못하고 있다. 이를 위해 본 연구에서는 용모사기론을 기반으로 안면 형태학적 특징 분석을 통한 진단시스템을 만드는 것을 목표로 하고 있다. 이를 통해 정확하고 편리하게 체질을 분류 할수 있는 방법을 제시하고 정확한 사상체질 분류 진단기기의 개발을 위한 정면 얼굴과 측면 얼굴에서의 주요 영역을 추출하는 방법을 제안하고자 한다.

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체강액의 세포학 (The Cytopathology of Body Cavity Fluid)

  • 홍은경
    • 대한세포병리학회지
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    • 제19권2호
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    • pp.72-85
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    • 2008
  • Cytologic examination of the body cavity fluid is very important because the specimens represent a significant percentage of nongynecologic samples and this cytologic examination may be the first, best or only chance for making the diagnosis of an underlying malignancy. The purposes of body cavity fluid examination are to correctly identify cancer cells and if possible, to identify the tumor types and primary sites when presented with unknown primary tumor sites. The most important basic differential diagnosis is that of benign and reactive disease vs malignant disease. Reactive mesothelial cells are a consistent population in body cavity fluid, and these are the most versatile cells in the body. Due to the specific environment of the body cavity, the exfoliated reactive mesothelial cells may show significant morphologic overlap with the morphology of cancer cells. With a focus on the differential points between reactive mesothelial cells and metastatic adenocarcinoma cells, the practical diagnostic approaches, the diagnostic clues and the pitfalls to achieve a correct diagnosis are presented in this review.

편평상피암과 연관된 거대피각 1례 (Giant Cutaneous Horn Associated with Squamous Cell Carcinoma: A Case Report)

  • 이정훈
    • Archives of Plastic Surgery
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    • 제32권5호
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    • pp.645-648
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    • 2005
  • Cutaneous horn is a morphologic designation for a projectile, conical, dense hyperkeratotic nodule that resembles the horn of an animal. The lesion varies in size from only a few millimeters to several centimeters, in color(white or yellowish) and in form (straight, curved, or twisted). It arises from a wide range of epidermal lesions, which include benign lesions, premalignant lesions and malignant lesions. An 83-year-old women came to our clinic with a giant cutaneous horn on the right chin and a small horn on the left upper eyelid. The patient had no palpable cervical lymph node. A wide elliptical skin incision was made and the horn was totally excised. In pathology, the giant cutaneous horn on the right chin revealed a moderately differentiated squamous cell carcinoma with subcutis invasion at its base. "Giant cutaneous horns" have often been associated with invasive squamous cell carcinoma. Cutaneous horns are common lesions usually found on the face, rarely larger than 2 cm. As large cutaneous horns are often associated with underlying malignancy, histopathologic examination of the base of the lesion is necessary to rule out carcinoma and full excision is recommended.

디자인 조형교육으로서의 건축설계수업 방법에 관한 연구 (A Study on the Process of Architectural Design Studio as a Formative Design Education)

  • 최동혁
    • 한국산학기술학회논문지
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    • 제11권11호
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    • pp.4623-4628
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    • 2010
  • 본 논문은 대학의 건축설계수업에서의 효과적인 디자인 교육의 방법을 모색하고자 하는 연구로서 디자인 교육이론을 바탕으로 하는 건축설계 교육모형과 이를 적용한 수업사례를 중심으로 디자인 조형교육으로서의 건축설계교육의 가능성을 고찰하는 것을 목적으로 한다. 본 연구에서 제시된 교육모형과 건축설계수업은, 조형 표현력과 조형이론의 학습, 그리고 기본기능의 훈련과 같은 기초디자인 교육내용을 포함하고 있으며, 수업의 각 과정이 단계별 완성도를 갖고 연속되고, 심층적 발전의 형식을 갖는다는 점에서 건축설계를 위한 기초교육으로서 종합적인 디자인 능력 계발이라는 교육의 목표를 달성할 수 있는 교육모형의 하나가 될 수 있다고 판단된다.