• 대한두경부종양학회:학술대회논문집
• /
• 2007.11a
• /
• pp.217-217
• /
• 2007

• Clinical and Experimental Pediatrics
• /
• v.45 no.11
• /
• pp.1311-1316
• /
• 2002

단순 흉부 X-선 사진은 흉곽내에 공기를 함유하고 있는 폐실질, 심장과 대혈관을 포함한 연부조직, 그리고 흉곽을 이루는 골격 등의 다양한 조직으로 이루어진 3차원적인 해부학적 구조물을 X-선 film이라는 2차원적 평면에 흑백의 음영으로 표현하는 검사이다. 뿐만아니라 이들 구조물들이 전후, 좌우로 겹쳐져 있어 병변이 쉽게 가려질 수 있고, 폐실질 질환 뿐만 아니라 심장 질환 또한 폐실질의 변화를 유발시킬 수 있으므로, 단순히 각 질환의 X-선 소견에 대한 지식을 습득하는 것보다는 병인과 해부학적인 지식에 대한 이해를 기본으로 X-선 판독에 임하는 것이 중요하다. 또한 환자들의 임상 증상과 부합되지 않는 X-선 소견이 관찰되거나, 치료 도중 임상 경과와 판독소견이 일치되지 않는다면 방사선과 전문의와의 긴밀한 의견교환이 진단과 치료에 중요하리라 생각된다.

• Anatomy & Biological Anthropology
• /
• v.30 no.2
• /
• pp.61-65
• /
• 2017

This report describes a variation of the tendinous slip of the flexor digitorum longus (FDL) for the great toe. In addition, compositions of the long flexor tendons for all five toes were examined. The tendons of the FDL in the foot were investigated in 66 specimens of embalmed Korean adult cadavers. The tendons of the flexor hallucis longus (FHL) and the FDL with the lumbrical muscles were cut at the calcaneus and the metatarsophalangeal joints and were removed en bloc specifically to observe the FDL and the FHL tendons of the great toe. The tendinous slip of the FDL for the great toe was found bilaterally in the foot of a 52-year-old male. Its prevalence was two of 66 specimens (3.0%). The tendinous slip of the FDL for the great toe passed forward the great toe, and it constituted the superficial portion of the long flexor tendon for the great toe. The tendon of the FHL passed forward to constitute the deep portion of the long flexor tendon for the great toe. Thus, both the tendinous slip of the FDL and the tendon of the FHL composed the long flexor tendon for the great toe. The tendinous slip of the FDL and the tendon of the FHL for the great toe were similar in thickness; thus, each tendinous slip of the FDL and the tendon of the FHL were approximately one-half of the long flexor tendon for the great toe in thickness. The present study demonstrated an anatomical variation of the interconnection between the FHL and the FDL tendons, which will be useful for various surgeries and biomechanical research.

• Clinics in Shoulder and Elbow
• /
• v.13 no.1
• /
• pp.153-160
• /
• 2010

Purpose: The goal of prosthetic replacement of the shoulder is the restoration of the normal anatomy of the joint. Materials and Methods: The physician should review the variations in normal anatomy because it does vary widely and the placement of the prosthetic needs to be modified to accommodate the variations. Results and Conclusion: Several factors including anatomic, prosthetic and surgical ones can lead to the best clinical results, and these are described.

• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2004.10a
• /
• pp.85-89
• /
• 2004

최근 몇 년 동안 사람들의 고유한 생리적인 특징을 이용한 생체 인식은 새로운 학문으로서 연구 및 개발이 활발하게 진행되고 있다. Hand-Geometry는 생체 인식의 확인 그리고 취득의 편리 때문에 식별 그리고 확인을 위하여 사용되고 있다. 그러므로, 본 논문은 이러한 특징을 가지는 손의 기하학적인 Hand-Geometry 인식 시스템을 제안하고자 한다. 해부학적인 관점에서, 인간의 손은 길이, 폭, 두께, 기하학적인 모양, 손바닥의 모양, 그리고 손가락들의 기하학적인 모양까지 특성으로 나타내어 질 수 있다. 그러나 특징 데이터 가운데 사용자의 Hand-GeoMetry의 특징에 따라 길이 데이터가 변하는 것을 실험적으로 발견하였다. 따라서 이와 같은 가변적인 길이 데이터를 안정화시키기 위하여 본 논문에서는 길이 데이터의 기준점을 손톱 아래 점으로 정하고, GA를 적용하여 보다 안정된 특징점을 추출하였다. 본 논문에서 제안한 Hand-Geometry 인식 시스템은 성인 20명의 개인에 대해 100개의 측정 데이터에 기인한 확인 결과를 제시한다. 인식 과정은 320$\times$240의 이미지로 실험하였고 인식 과정의 결과는 95 %의 적중률과 0.020의 FAR로 나타났다.

• Archives of Hand and Microsurgery
• /
• v.23 no.4
• /
• pp.267-270
• /
• 2018

Recurrent motor branch entrapment syndrome is a compressive mononeuropathy of recurrent motor branch of median nerve. It is a rare condition as a cause of thenar muscle wasting and may have different pathogenesis. If such an anatomical variation is the cause, there is a possibility that thenar muscle atrophy remains if only the transcarpal ligament release is performed. We report a 25-year-old male patient with carpal tunnel syndrome with thenar muscle wasting 1 month ago.

• Journal of the Korean Wood Science and Technology
• /
• v.15 no.2
• /
• pp.105-112
• /
• 1987

Some anatomical characterisitcs of Japanese red pine (Pinus densiflora S. et Z.) collected from pollution-exposed areas in Korea were investigated. These sites were reportedly the most severe air polluted areas in Korean peninsular. A decline in overall growth rate was apparent since the late 10-year period of growth. P. densiflora in Onsan and in Yeochon recorded in the radial growth reduction of approximately 70 and 60% respectively. The formation of earlywood in the period of air pollution was restricted, whereas the percentage of latewood increased. The maximum wood density was lower in xylem rings formed during a period of air-pollution than in rings found without pollution. Most of pine trees damaged by air pollution showed the classical type of length-on-age curve for tracheids. However, reduction in cell wall-thickness and diameter was revealed in the wood exposed to air pollutants. Nor anomalies in microstructures nor microorganisms in wood structures were found in the damaged trees.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.31 no.2
• /
• pp.104-111
• /
• 2015

Purpose: The aim of this retrospective study was to investigate the prevalence rate and types of C-shaped roots and C-shaped canal in maxillary molars by analyzing cone-beam computed tomography (CBCT) in a Korean population. Materials and Methods: Total of 357 CBCT images of maxillary molars (186 first molar, 171 second molar) were evaluated by two Endodontic specialists. Results: Eight types of C-shaped roots and 5 types of C-shaped canals were founded, the prevalence rate of C-shaped roots and canals were 21.0% and 5.3% respectively. Conclusion: These anatomical variations were more frequent in second molars than the first molars. Clinicians should have anatomical knowledge about various types of C-shaped root and root canal for successful root canal therapy.

• Korean Journal of Head & Neck Oncology
• /
• v.26 no.2
• /
• pp.253-255
• /
• 2010

Identification and protection of the facial nerve is very important in the proper operation of the parotid tumor. Posterior approach which finds main trunk of the facial nerve by surgical landmark such as tragal pointer, tympanomastoid suture, and posterior belly of digastric muscle is most commonly used. In case of posterior located tumor, inferior approach may be used, in which the retromandibular vein is followed from the neck and inferior branch of the facial nerve is located. In general, the facial nerve lies superficial to the retromandibular vein. But we experienced the anomalous relationship of the facial nerve and the retromandibular vien. We report this case with a literature review.

• Korean Journal of Plant Taxonomy
• /
• v.44 no.2
• /
• pp.91-99
• /
• 2014

Leaf anatomical study of Pinus thunbergii collected from 12 different coastal regions of Korea was conducted to understand the adaptive variation on leaf traits. Basic anatomical features are typical pine needle type with fibrous epidermis, 2-3 layered hypodermis, sunken stomata, monomorphic mesophyll, and well-represented bundle sheath. The bundle sheath surrounds a couple of vascular bundle separated by parenchyma bands. On the basis of their position, the resin ducts are of three types; external, medial and internal of the bundle sheath. The total number of resin ducts in all samples varies from 4 to 12. The stomata were found on stomatal bands throughout the leaf surface. Important dissimilarities observed on P. thunburgii leaf are the number and position of resin ducts and the number of stomata rows in leaf surface.