• 대한방사선기술학회지:방사선기술과학
• /
• 제27권3호
• /
• pp.19-24
• /
• 2004

인체의 해부학적 구조에 관해 다른 영상들보다 정확한 정보를 제공하는 MRI에 대해 많은 연구가 진행중이다. 본 논문에서는 대퇴골두 무혈성 괴사의 자동 진단에 필요한 대퇴골두 영역의 추출에 관한 효과적인 방법을 제안한다. 대퇴골두의 해부학적 특성과 Hough transform을 이용하여 대퇴골두 영역을 설정하였고, 대퇴골두 영역을 분할하는 방법으로서 영역 확장법과 히스토그램 기반 영역 분할 방법의 장점을 결합한 방법을 고안하였다. 본 논문에서 제시한 방법은 정상적인 대퇴골두와 무혈성 괴사의 초기 단계의 대퇴골두 뿐만 아니라 괴사가 심한 대퇴골두에 대해서도 좋은 결과를 얻을 수 있었다.

• 대한임상검사과학회지
• /
• 제36권2호
• /
• pp.193-198
• /
• 2004

PET/CT combines the functional information from a positron emission tomography (PET) exam with the anatomical information from a computed tomography (CT) exam into one single exam. A CT scan uses a combination of x-rays and computers to give the radiologist a non-invasive way to see inside your body. One advantage of CT is its ability to rapidly acquire two-dimensional pictures of your anatomy. Using a computer these 2-D images can be presented in 3-D for in-depth clinical evaluation. A PET scan detects changes in the cellular function - how your cells are utilizing nutrients like sugar and oxygen. Since these functional changes take place before physical changes occur, PET can provide information that enables your physician to make an early diagnosis. The PET exam pinpoints metabolic activity in cells and the CT exam provides an anatomical reference. When these two scans are fused together, your physician can view metabolic changes in the proper anatomical context of your body. PET/CT offers significant advantages including more accurate localization of functional abnormalities, and the distinction of pathological from normal physiological uptake, and improvements in monitoring treatment. A PET/CT scan allows physicians to measure the body's abnormal molecular cell activity to detect cancer (such as breast cancer, lung cancer, colorectal cancer, lymphoma, melanoma and other skin cancers), brain disorders (such as Alzheimer's disease, Parkinson's disease, and epilepsy), and heart disease (such as coronary artery disease).

• 한국전문물리치료학회지
• /
• 제14권2호
• /
• pp.61-67
• /
• 2007

The purpose of this study was to examine inter- and intra-examiner reliability of the sacroiliac joint (SIJ) anatomical landmarks palpation. Two physical therapists and one doctor specializing in rehabilitation examined 22 asymptomatic subjects. They examined anterior superior iliac supine (ASIS), posterior superior iliac supine (PSIS) and iliac crest (IC). For the assessment of intra-examiner reliability, 3 examiners repeated the measurements 3 times over a 2-week interval. Kappa (Kg) yielded intra-examiner reliability that ranged between slight to fair for the ASIS (Kg=.06 to .26; mean Kg=.19), and slight for the PSIS(Kg=-.04 to .18; mean Kg=.07) and slight to fair for the IC (Kg=.06 to .32; mean Kg=.21). Inter-examiner reliability was slight (ASIS Kg=.13; PSIS Kg=.05; IC Kg=.14). These results suggest that the reliability of the assessing SIJ anatomical landmarks using palpation and observation as an indication of SIJ dysfunction still remains questionable. Before this test can be relied upon as an accurate indicator of SIJ dysfunction, it must undergo further research. This further research needs to examine not only reliability, but also validity, sensitivity and specificity.

• Journal of the Korean Wood Science and Technology
• /
• 제25권3호
• /
• pp.24-28
• /
• 1997

As a way to revive the traditional technology of Korean golden varnish(Hwangchill), the exudates of D. morbifera, this study was carried out at first to investigate the anatomical characteristics and the chemical composition of D. morbifera stems and their exudates. Trees of more than 20 years old were harvested at Wando and Jejudo islands in the southwestern part of Korean peninsula during different physiological seasons of winter, spring, and summer, The results obtained are as follows: 1. In the anatomical aspect of wood, Hwangchil woods is ring-porous wood, has alternate inter-vessel pittings and horizontal intercellular canal in xylem. 2. In the chemical aspect of wood and bark, the general compositions appeared hot to differ from those of other hardwoods, and ash and alcohol-benzene extractives showed little increase with the increase of atmospheric temperature of harvesting season. 3. In the solvent-sequential extraction of bark, wood and exudate, the exudates was extracted up to 80% by ether, but the bark and wood contained a very small amount of ether extractives, about 2% in the bark and 0.5% in the xylem.

• 한국자원식물학회지
• /
• 제14권3호
• /
• pp.188-195
• /
• 2001

삽주(Atractylodes japonica Koidz. ex Kitam.)와 큰꽃삽주(A. macrocephala Koida.)의 근경 과 측근, 줄기, 잎과 엽병, 자방, 잎의 표피 세포의 형태와 크기에 관한 해부학적형질을 조사하여 이들의 분류학적 가치를 평가하고자 본 연구를 수행하였다. 줄기와 자방의 횡단면 구조는 매우 유사하여 두 종이 구분되지 않았으나, 근경에 분포하는 유관의 크기와 단위면적 당 분포수, 잎과 엽병의 횡단면 형태, 잎 표피 세포의 크기와 기공의 단위 면적당 분포수에서 차이가 있어 두 종을 구별하는 형질로서 가치가 있는 것으로 생각되었다.

• Journal of the Korean Wood Science and Technology
• /
• 제45권4호
• /
• pp.463-470
• /
• 2017

The objectives of this study are to obtain the basic knowledge of anatomical characteristics and wood properties of thinning trees of young teak (Tectona grandis L.F.) for fulfill the timber demand in Indonesia. Nine thinning trees of 5-year-old teak clone trees were used for analyzing the cell morphology and air-dry density. Vessel diameters in pore and outer pore zones were 165 and $90{\mu}m$, respectively. Mean value of fiber diameter, cell wall thickness, and fiber length in outer pore zone were $14.6{\mu}m$, $2.07{\mu}m$, and 1.04 mm, respectively. In addition, mean value of air-dry density was $0.55g/cm^3$. The measurement and values of vessel diameter, fiber diameter, cell wall thickness, fiber length and air-dry density in the experimental had lower than those in the older teak. Therefore, it could be suggested that the wood from thinning young teaks was not appropriate as construction material, but it could be used for furniture which do not need high of strength properties. Furthermore, since the measurements values of anatomical characteristics were still increasing from pith to bark, it could be suggested that 5-year-old teak clones are still in a juvenile phase. Positively significant correlations were found between air-dry density and cell wall thickness, indicating that cell wall thickness is strongly correlated with wood density of teak.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권12호
• /
• pp.7737-7741
• /
• 2013

Background: Human papilloma virus infection is associated with genesis and malignant potential of cervical cancer. E6 and E7 oncogens are known to bind to p53 and retinoblastoma gene products, abrogating their functions as tumor suppressors, leading to an abnormal cell cycle machinery. Roles of the p53 homolog p63 have also been postulated, E6 expression leading to TAp63b degradation allowing anchorage independent growth. Molecular studies correlated with clinicopathological factors are important to determine prognosis and treatment strategies, but results have been controversial and need to be clarified. Aim: To investigate expression of p53 and p63 in cervical squamous cell carcinomas in correlation with age, FIGO staging, morphology, and cancer cell proliferation. Materials and Methods: Expression of p53 and p63 immunohistochemical staining in a total of 56 paraffin-embedded tissues of cervical squamous cell carcinomas from Dr. Sardjito General Hospital Indonesia, was evaluated for correlation with clinicopathological parameters. The Mann-Whitney test was used to compare the percentage of p53 and p63 expression with patient age, FIGO staging and morphology and to compare mean p53 and p63 expression. The Spearman correlation test was applied to correlate p53 and p63 expression with that of Ki-67. A p-value of <0.05 was considered statistically significant. Results: There were significant associations between p53 expression with age (p=0.019) and FIGO staging (p=0.026), but not with with morphology or Ki-67 expression. There were no links between p63 expression and age, morphology, FIGO staging or Ki-67. Conclusions: This study indicated that p53 has a prognostic value in cervical squamous cell carcinomas given the relation with FIGO staging.

• Journal of the Korean Wood Science and Technology
• /
• 제39권5호
• /
• pp.406-419
• /
• 2011

This study was carried out to offer basic information on the wood anatomy of domestic yellow-poplar (Liriodendron tulipifera L.), a new plantation species selected by Korea Forest Service as one of the promising hardwood and bioenergy sources of the future, through comparison of stem wood with root wood in the qualitative and quantitative features. In the qualitative anatomical features, growth rings were distinct in stem wood but relatively less distinct in root wood. And stem wood appeared to have pores in radial multiples of 2 to 5, sometimes clusters but root wood to have pores in radial multiples of 2 to 3, rarely clusters. And numbers of bars in scalariform perforation plates were somewhat numerous in vessel elements of root wood than in those of stem wood. Interestingly, on the other hand, more extraneous materials in the wood rays of tap root than in those of lateral root and stem were confirmed in the chemical composition analyses. In the quantitative anatomical features, pore densities were significantly greater but vessel elements were considerably narrower in stem wood than in root wood. Vessel elements and wood fibers of root wood were considerably longer than those of stem wood. Rays were somewhat more numerous in stem wood than in root wood, and only ray heights of stem wood were more or less greater in cell numbers but both ray heights and widths of stem wood were lower in dimension than those of root wood. The anatomical differences between stem wood and root wood were thought to be associated with different growth environments between the stem above ground and the root below ground.

• 대한족부족관절학회지
• /
• 제14권1호
• /
• pp.53-57
• /
• 2010

Purpose: This study was designed to evaluate the clinical and radiographical results of anatomical reconstruction by Chen method for chronic lateral ankle instability. Materials and Methods: Fifteen patients with chronic lateral ankle instability who had undergone anatomical reconstruction of anterior talofibular and calcaneofibular ligaments by Chen method were evaluated retrospectively. Average age of the patients was 31.3 years, and average follow-up period was 15.5 months. Preoperative and postoperative radiographs including varus stress view and magnetic resonance imaging (MRI) were analyzed. The clinical evaluation was performed according to the American Orthopaedic Foot and Ankle Society (AOFAS) scale. Results: Radiographically average talar tilt angle was $15.3^{\circ}$ preoperatively, and the difference with contralateral normal side was $10.1^{\circ}$. At last follow up, talar tile angle and the difference with contralateral side improved to $5.9^{\circ}$ and $1.3^{\circ}$ respectively. AOFAS scale was 66.6 preoperatively and 87.3 postoperatively. In MRI findings, four patients had associated intra-articular lesion such as articular cartilage defect, synovitis and osteoarthritis. The talar tilt angle improvement and AOFAS scale of patients without intra-articular lesion was better than those of four patients with intra-articular lesions. Surgical wound pain occurred in six patients and sural neuropathy in three patients. Conclusion: The anatomical reconstruction by Chen method was an easy and effective procedure for symptomatic chronic lateral ankle instability. Careful operative technique may prevent the surgical wound pain and sural neuropathy.

• Korean Journal of Acupuncture
• /
• 제20권2호
• /
• pp.137-153
• /
• 2003

The Oriental Medicine is described with so many terms of its own theory causing misunderstand of the concept which is expressed with same term used in modern medicine. Muscular system is also used in the both medicines, the Oriental Medicine and modern medicine. For the purpose of resolving the misunderstand of using the medical terms, we referred to a large number of literature for the muscular system in both medicine. Although there are few references concerning about systematic components in the Oriental Medicine, among the concepts of the Oriental Medicine, there are comparatively many approaches to the Meridian muscular system, a muscular system related with the Meridian, Therefore, there are many similarities and differences in the interrelation between the muscular system which was stated at the time of the concept of the Meridian system was developed and anatomical muscular system in the modern medicine. As a result of survey the references, we found out that anatomical muscular system is limited to visual compartments, whereas the Meridian muscular system is covering not only visual components but also the relation with internal organs. We conclude that there are conceptual differences in the kyung-keun system in the past and anatomical muscular system in the present.