• 제목/요약/키워드: Anatomical Variation

검색결과 141건 처리시간 0.03초

광배근 피판의 비전형적인 혈관 해부학적 증례에 대한 보고 (The Report for Atypical Vascular Variations in the Latissimus Dorsi Myocutaneous Flaps)

  • 정덕환;한정수;이재훈
    • Archives of Reconstructive Microsurgery
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    • 제11권2호
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    • pp.135-140
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    • 2002
  • It has been known that latissimus dorsi(LD) myocutaneous flap based on thoracodorsal artery is one of most useful method for microreconstructive surgery and the thoracodorsal artery of this flap has constant vascular anatomy. The retrospective study for anatomy of the thoracodorsal arterial system was performed at operative cases. The aim of this study was to document the anatomical variation of this pedicle clinically. 167 LD flaps were carried out from 1983 to 2002 in our clinic. We found unusual 7(4.2%) cases compared to standard textbooks of anatomy. One case was no vascular supply to LD muscle. In 2(1.2%) cases thoracodorsal artery was a typical branch of the subscapular artery but didn't branch to LD muscle, passed to lower serratus anterior muscle, and at this point, supplied vessel to LD muscle and it's vascular diameter was about 1mm diameter. The thoracodorsal artery arose from the axillary artery in 1.8% of cases(3 cases). One case had less than 1mm vascular diameter but a branch of subscapluar artery. It should be emphasized that we must elevate the latissimus dorsi flap after accurate cognition for the anatomy of thoracodorsal artery because the thoracodorsal arterial system is almost reliable but not uniform in rare cases.

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3온스 물 삼킴검사 이후 정상 노년층의 음질 변화: 음향학적 분석 (Voice quality of normal elderly people after a 3oz water-swallow test: An acoustic analysis)

  • 이솔희;최홍식;최성희;김향희
    • 말소리와 음성과학
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    • 제10권2호
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    • pp.69-76
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    • 2018
  • The elderly are at increased risk of developing dysphagia due to aging and illnesses. The aim of the current study was to analyze, via an acoustic study, the change in the voice quality of normal elderly people after a 3oz water-swallow test. Subjects included a group of 60 normal elderly people (age: $mean{\pm}SD=76.9{\pm}6.66$) and 60 healthy young adults (age: $mean{\pm}SD=25.1{\pm}2.36$). Every participant produced a five-second /a/ phonation pre- and post-swallowing, and the fractioned two-second sections were analyzed using the MDVP (multi dimensional voice program) analysis. The elderly group demonstrated a post-swallowing increase in the following related acoustic parameters: fundamental frequency, fundamental frequency variation, amplitude-variation, and noise in both two-second sections. However, the younger group showed an increase only in frequency related acoustic parameters (i.e., STD ) in the first two-second section. The significant changes in values in the post-swallowing parameters might indicate temporary irregularities in pitch and amplitude along with higher amounts of noise in the voice. The results could be attributed to water residues in the vocal fold and vocal tract, as well as a deterioration of the motor and sensory functions caused by anatomical and physiological changes that result from aging.

인삼잎의 생약학적 연구 (Pharmacognostical Studies on Ginseng Folium)

  • 박종희
    • 한국자원식물학회지
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    • 제8권2호
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    • pp.127-133
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    • 1995
  • 1. Panax ginseng의 재배년수에 따른 내부형태적 차이를 검토한 결과, 소엽신(小葉身)의 주맥부(主脈部), 소엽병(小葉柄), 엽병(葉柄)의 횡절면(橫切面)에 있어서 각각의 특징에 의하여 발육년수(年數)를 판단할 수가 있었다. (Tabel II) 2. 내부형태를 비교검토한 결과, 서울, 부산, 대구, 금산의 $\ulcorner$인삼잎$\lrcorner$은 원식물(原植物)이 Panax ginseng으로서 대부분이 5년 및 6년생이었으며 부분적으로 4년생이 함유되어 있었다.

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부중대뇌동맥 기시부의 동맥류 - 증례보고 - (Aneurysm at the Origin of the Accessory Middle Cerebral Artery - A Case Report -)

  • 안정용;주진양
    • Journal of Korean Neurosurgical Society
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    • 제29권6호
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    • pp.832-835
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    • 2000
  • A case of unruptured cerebral aneurysm at the junction of accessory middle cerebral artery and the distal portion of the $A_1$ segment of the anterior cerebral artery is reported. To the authors' knowledge, this is the first reported case of cerebral aneurysm developed at the junction of accessory middle cerebral artery, demonstrated on magnetic resonance angiography(MRA). The accessory middle cerebral artery is a rare vascular variant of middle cerebral artery. Furthermore, it is extremely rare for an aneurysm to be developed at the origin of the accessory middle cerebral artery. The development of the accessory middle cerebral artery is very important in surgery of cerebral aneurysm and collateral circulation of cerebral infarction. Review of the literature regarding the genesis and anatomical variation of the accessory middle cerebral artery is also presented.

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줄자를 이용한 하지부피 측정시 부위별 검사자간, 검사자내 신뢰도 측정 (Intertester and Intratester Reliability of Tape Measurement on Lower Extremities)

  • 김성중;양회송;이충휘
    • 한국전문물리치료학회지
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    • 제7권1호
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    • pp.38-45
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    • 2000
  • Tape measurement for evaluating edema is frequently used by clinicians. The primary purpose of this study is to determine the intertester and intratester reliability of tape measurement carried out by two physical therapists on lower extremities. The intertester and intratester reliability of six anatomical landmarks measurements were determined in six healthy subjects. The measurements were taken in five sessions by each tester. The intraclass correlation coefficients (2,1) were between .87 and .99 for intertester reliability. Intratester reliability was .93 and .99 for A tester and .82 and .99 for B tester. The average range of variation was .13 to .54 in six landmarks. The reliability of six volume measurements was very high. These results support the use tape measurement as a reliable tool for measuring limb girth.

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암 모기 흡혈과정 가시화 (Visualization of blood sucking phenomena of a female mosquito)

  • 김보흠;이상준
    • 한국가시화정보학회:학술대회논문집
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    • 한국가시화정보학회 2007년도 추계학술대회
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    • pp.114-115
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    • 2007
  • As a carrier of malaria and sneak of blood, mosquitoes are regarded as an unpleasant insect. However, there are novel phenomena that happen inside a mosquito. Among them, we focused on the blood sucking function of a female mosquito. The main objective of this study was to investigate the mosquito's pumping mechanism in order to resolve the problem encountered when we inject or transport biologic fluids into a micro-chip. To analyze the pumping mechanism, we visualized the blood sucking process inside a female mosquito. Flow characteristics of blood flow in a proboscis were investigated experimentally using a micro-PIV velocity field measurement technique. The anatomical variation of head, thorax, abdomen which work as pumps and valves, was visualized using the syncrotron X-ray micro-imaging technique.

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영장동물폐(靈長動物肺)의 비교해부학적연구(比較解剖學的硏究) 2. 기관(氣管) 및 기관지(氣管枝)의 기하학적계측(幾何學的計測)과 폐중량(肺重量)에 관(關)한 연구(硏究) (Comparative Anatomic Structures of Nonhuman Primate Lungs 2. Tracheobronchial Geometry and Lung Lobe Weight)

  • 김무강
    • 대한수의학회지
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    • 제19권1호
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    • pp.9-15
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    • 1979
  • Anatomical measurements were made at the necoropsy and sacrifice in a group of 41 adult female Rhesus monkey to determine the 34 characteristcs found in tracheas snd bronchus. Table 1, 2, 3, 4, and figure 1 were therefore prepared as a guide in the further use for illustrating monkey lung research. Summary of this report is as follows: 1. Accurate Knowledge of these measurements may have some value in pulmonary dissection and reconstructive procedures. 2. These studies may provide a more accurate determination of the monkey lungs. 3. The right and left bronchus length of the monkey is shorter than fornd in man. 4. The left bronchus length is more longer than the rrght bronchas. 5. There were large variation among the weight of adult female Rhesus monkey.

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Dissecting Aneurysm Associated with a Double Origin of the Posterior Inferior Cerebellar Artery Causing Subarachnoid Hemorrhage

  • Koh, Jun-Seok;Lee, Cheol-Young;Lee, Seung-Hwan;Kim, Gook-Ki
    • Journal of Korean Neurosurgical Society
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    • 제51권1호
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    • pp.40-43
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    • 2012
  • Two cases of the posterior fossa dissecting aneurysm associated with a double origin of the posterior inferior cerebellar artery (DOPICA) causing subarachnoid hemorrhage are presented. After observing a relationship between the aneurysm and DOPICA on a three dimensional rotational angiogram (3DRA), the dissecting aneurysms were successfully obliterated by surgical trapping and endovascular internal trapping, respectively. This report warrants suspecting DOPICA of an associating anomaly predisposing to dissecting aneurysm in the vertebral artery-posterior inferior cerebellar artery territory and highlights the role of 3DRA in pretreatment evaluation of unusual aneurysms accompanying a particular anatomical variation.

심박수 변이도를 이용한 전정자율신경반사의 분석 (Analysis of Vestibuloautonomic Reflex by Heart Rate Variability)

  • 오경아;박옥규;김민선;김재효;박병림
    • 한국감성과학회:학술대회논문집
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    • 한국감성과학회 1999년도 춘계학술발표논문집 논문집
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    • pp.243-248
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    • 1999
  • There is substantial evidence that anatomical connections and functional interactions exist between vestibular and autonomic systems. Heart rate variability (HRV) including mean, standard deviation, coefficient of variation (CV), power spectrum was analyzed for evaluation of the physiological role of the vestibular system on control of heart rate in rabbits. In anesthetized rabbits, electrical stimulation of the vagus nerve decreased heart rate and decreased LF/HF by increasing HF. On the cervical sympathetic nerve increased heart rate and increased LF/HF by increasing LF. Atropine, cholinergic blocker, increased heart rate and increased LF/HF by reducing HF, and propranolol, ${\beta}$-adrenergic blocker, decreased heart rate and decreased LF/HF by reducing LF> In unanesthetized rabbits, stimulation of the vestibular system induced by rotation or caloric increased heart rate and increased LF/HF by increasing LF> Also electrical stimulation of the vestibular nerve produced the same of effects as rotation or caloric in anesthetized rabbits. These results suggest that Stimulation of the vestibular system increased heart rate not by inhibiting the parasympathetic nerve but by activating the sympathetic nerve.

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The MRI Findings of Flexor Digitorum Accessorius Longus Muscle: a Case Report

  • Shin, Jae Hwan;Shim, Jae-Chan;Lee, Kyoung Eun;Kim, Ho Kyun;Lee, Ghi Jai;Suh, Jung Ho
    • Investigative Magnetic Resonance Imaging
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    • 제20권2호
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    • pp.123-126
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    • 2016
  • The flexor digitorum accessorius longus (FDAL) is the most common accessory muscle found in the posterior compartment of the ankle area. The accessory muscle in this area such as the FDAL may be incidentally identified on magnetic resonance images (MRI). There are some case reports about the FDAL in cadaver researches. However, the MRI findings about the FDAL have been reported in a few cases. In this paper, we report a case of the FDAL incidentally identified on MRI with review of the literature about the FDAL.