• 제목/요약/키워드: Anatomical study

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『영추·경근』의 기본자세에 대한 연구 (Study on the Standard Posture of 『Yeongchu·Gyeonggeun (Lingshu·Jingjin)』)

  • 김민식;김창건;이은용
    • Korean Journal of Acupuncture
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    • 제37권1호
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    • pp.1-13
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    • 2020
  • Objectives : To analyze the contents of ≪Lingshu·Jingjin≫ and study the standard posture in context of Korean Medicine. Methods : Analyzed the terms related to the name, body region and orientation of Three Yin and Three Yang used in ≪Lingshu·Jingjin≫ to deduce the standard posture of the description. ≪Lingshu·Jingmai≫ was used as supplementary data. Results : The term "Three Yin and Three Yang" in ≪Lingshu·Jingjin≫ is used to indicate regions of the human body, and based on this, terms with orientation were used. Just like 'anatomical position', there is a standard posture in Korean Medicine, and it may seem to be similar overall, but there is a difference in posture in the upper extremity. In ≪Lingshu·Jingjin≫, Greater Yang is the dorsal region, Lesser Yang is the lateral surface region, Yang Brightness is the anterior surface region of the human body. In the body trunk, Three Yin refers to the inner parts of the human body. However, in the lower extremity, Three Yin refers to the medial surface of the legs. The name of the individual Meridian-muscle was given following the region corresponding to Three Yin and Three Yang. In ≪Lingshu·Jingjin≫, there is a basic posture that became the standard posture derived from the description. In an upright standing position, the feet face forward, the fingers naturally extended, and the back of the hand faces outward. The fact that the posture of the thumb is naturally extended is especially reflected in ≪Lingshu·Jingjin≫. This is clearly different from the "anatomical position" and as it can be the base of all areas of acupuncture, it is suggested that it be defined as the "Standard Position of Acupuncture Medicine". Conclusions : Based on our analysis, we suggest the "Standard Position of Acupuncture Medicine" as an upright standing position, with the feet facing forward, the fingers naturally extended, the back of the hand facing outward, and the thumb naturally extended.

Use of an anatomical mid-sagittal plane for 3-dimensional cephalometry: A preliminary study

  • Vernucci, Roberto Antonio;Aghazada, Huseynagha;Gardini, Kelly;Fegatelli, Danilo Alunni;Barbato, Ersilia;Galluccio, Gabriella;Silvestri, Alessandro
    • Imaging Science in Dentistry
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    • 제49권2호
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    • pp.159-169
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    • 2019
  • Purpose: Cone-beam computed tomography (CBCT) is widely used for 3-dimensional assessments of cranio-maxillo-facial relationships, especially in patients undergoing orthognathic surgery. We have introduced, for reference in CBCT cephalometry, an anatomical mid-sagittal plane (MSP) identified by the nasion, the midpoint between the posterior clinoid processes of the sella turcica, and the basion. The MSP is an updated version of the median plane previously used at our institution for 2D posterior-anterior cephalometry. This study was conducted to test the accuracy of the CBCT measures compared to those obtained using standard posterior-anterior cephalometry. Materials and Methods: Two operators measured the inter-zygomatic distance on 15 CBCT scans using the MSP as a reference plane, and the CBCT measurements were compared with measurements made on patients' posterior-anterior cephalograms. The statistical analysis evaluated the absolute and percentage differences between the 3D and 2D measurements. Results: As demonstrated by the absolute mean difference (roughly 1 mm) and the percentage difference (less than 3%), the MSP showed good accuracy on CBCT compared to the 2D plane, especially for measurements of the left side. However, the CBCT measurements showed a high standard deviation, indicating major variability and low precision. Conclusion: The anatomical MSP can be used as a reliable reference plane for transverse measurements in 3D cephalometry in cases of symmetrical or asymmetrical malocclusion. In patients who suffer from distortions of the skull base, the identification of landmarks might be difficult and the MSP could be unreliable. Becoming familiar with the relevant software could reduce errors and improve reliability.

Daily adaptive proton therapy: Feasibility study of detection of tumor variations based on tomographic imaging of prompt gamma emission from proton-boron fusion reaction

  • Choi, Min-Geon;Law, Martin;Djeng, Shin-Kien;Kim, Moo-Sub;Shin, Han-Back;Choe, Bo-Young;Yoon, Do-Kun;Suh, Tae Suk
    • Nuclear Engineering and Technology
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    • 제54권8호
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    • pp.3006-3016
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    • 2022
  • In this study, the images of specific prompt gamma (PG)-rays of 719 keV emitted from proton-boron reactions were analyzed using single-photon emission computed tomography (SPECT). Quantitative evaluation of the images verified the detection of anatomical changes in tumors, one of the important factors in daily adaptive proton therapy (DAPT) and verified the possibility of application of the PG-ray images to DAPT. Six scenarios were considered based on various sizes and locations compared to the reference virtual tumor to observe the anatomical alterations in the virtual tumor. Subsequently, PG-rays SPECT images were acquired using the modified ordered subset expectation-maximization algorithm, and these were evaluated using quantitative analysis methods. The results confirmed that the pixel range and location of the highest value of the normalized pixel in the PG-rays SPECT image profile changed according to the size and location of the virtual tumor. Moreover, the alterations in the virtual tumor size and location in the PG-rays SPECT images were similar to the true size and location alterations set in the phantom. Based on the above results, the tumor anatomical alterations in DAPT could be adequately detected and verified through SPECT imaging using the 719 keV PG-rays acquired during treatment.

The branching patterns and termination points of the facial artery: a cadaveric anatomical study

  • Vu Hoang Nguyen;Lin Cheng-Kuan;Tuan Anh Nguyen;Trang Huu Ngoc Thao Cai
    • 대한두개안면성형외과학회지
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    • 제25권2호
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    • pp.77-84
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    • 2024
  • Background: The facial artery is an important blood vessel responsible for supplying the anterior face. Understanding the branching patterns of the facial artery plays a crucial role in various medical specialties such as plastic surgery, dermatology, and oncology. This knowledge contributes to improving the success rate of facial reconstruction and aesthetic procedures. However, debate continues regarding the classification of facial artery branching patterns in the existing literature. Methods: We conducted a comprehensive anatomical study, in which we dissected 102 facial arteries from 52 embalmed and formaldehyde-fixed Vietnamese cadavers at the Anatomy Department, University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam. Results: Our investigation revealed eight distinct termination points and identified 35 combinations of branching patterns, including seven arterial branching patterns. These termination points included the inferior labial artery, superior labial artery, inferior alar artery, lateral nasal artery, angular artery typical, angular artery running along the lower border of the orbicularis oculi muscle, forehead branch, duplex, and short course (hypoplastic). Notably, the branching patterns of the facial artery displayed marked asymmetry between the left and right sides within the same cadaver. Conclusion: The considerable variation observed in the branching pattern and termination points of the facial artery makes it challenging to establish a definitive classification system for this vessel. Therefore, it is imperative to develop an anatomical map summarizing the major measurements and geometric features of the facial artery. Surgeons and medical professionals involved in facial surgery and procedures must consider the detailed anatomy and relative positioning of the facial artery to minimize the risk of unexpected complications.

세신의 생약학적 연구 (Pharmacognostical Studies on the "Se Sin")

  • 박정희
    • 한국자원식물학회지
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    • 제9권2호
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    • pp.183-188
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    • 1996
  • Chinese crude drug 'Se Sin'(細辛)has been used to cure headache, cough and expectorant. To the botanical origin of 'Se Sin', Zhong-yao-zhi(中葯志) reported Asarum heterotropoides var. mandshuricum. A. sieboldii and A. sieboldii var. seoulensis, and Zhong-yao-da-ci-dian(中葯大辭典) reported Asarum heterotropoides var. mandshuricum and A. sieboldii of Aristolochiaceae. In Korea, this crude drug has been used as a Korean folk remedy for tothache and aromatic. The botanical origin of 'Se Sin' is considered to be Asarum species of Aristolochoaceae. But there has no pharmacognostical confirmation on it. To clarify the botanical origin of 'Se Sin', we studied on the anatomical characteristics of Asarum species growing wildly in Korea i.e. A. maculatum, A. sieboldii, A. sieboldii var. seoulensis, and of 'Se Sin' from Korea on Korean market. Through our studies, the botanical origin of 'Se Sin' from Korea was proved to be whole plant of Asarum sieboldii and A. sieboldii var. seoulensis.

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당약의 생약학적 연구 (Pharmacognostical Studies on the "DangYak")

  • 배지영;박종희;안미정
    • 생약학회지
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    • 제44권4호
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    • pp.313-319
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    • 2013
  • A Korean folk medicine, "DangYak (當藥)" has been used as a bitter stomachic in Korea. With regard to the botanical origin of this crude drug, it has been considered to be from Swertia species (Gentianaceae), but there was no pharmacognostical confirmation on it. In this study, the morphological and anatomical characteristics of three Swertia species growing in Korea, Swertia japonica Makino, S. pseudochinensis Hara and S. tetrapetala Pall. were compared to clarify the botanical origin of "DangYak". As a result, it was determined that the commercial "DangYak" from Korean traditional market was proved to be the whole plant body mixture of Swertia japonica and Swertia pseudochinensis.

치아경조직의 화학적 판정에 의한 성차 연구 (A Study of Sex Difference by Chemical Determination of Dentin in Human Teeth)

  • 장세활;김종열
    • Journal of Oral Medicine and Pain
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    • 제8권1호
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    • pp.127-142
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    • 1983
  • This thesis was to investigate sex defferencd by employing the methodes of Bernadskij's and it's modification by means of the evaluation of pH of dentin in 162 extracted teeth. The obtained were as follows: 1. In 72% of all experinments, pH of human dentin substance was higher in female than in male. Mean pH was 13.175±0.031 in male and 13.245±0.030 in female. 2. After comparative studies on each pH in anatomical region of tooth arrangement, the sex difference of pH was most obviously showed in molars. 3. In pH change according to ages, the 30's was the highest in male and the 20's in female, also pH showed decresing tendency by the increasing of age in both male and female. 4. There was no pH difference in anatomical regions of tooth arrangment. 5. Mean pH was 13.282±0.013 in under 50 years of age and 13.282±0.022 over 50. It proved that pH was higher in under 50 years of age than in over 50.

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패장의 생약학적 연구 (Pharmacognostical Studies on the 'Pae Jang')

  • 박종희;최정규
    • 생약학회지
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    • 제37권4호
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    • pp.302-306
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    • 2006
  • 'Pae Jang (敗醬)' is one of Chinese crude drugs used mainly as a edema, abdominal pain and hemoptysis, etc. With regard to the botanical origin of 'Pae Jang', it has been considered to be Patrinia scabiosaefolia of Valerianaceae, but there has never been studied pharmacognostically. To clarify the botanical origin of the 'Pae Jang', we studied on the anatomical characteristics of the roots of three species growing in Korea. Through our studies, the botanical origin of 'Pae Jang' from Korea was proved to be the under ground portions of Patrinia scabiosaefolia and Patrinia villosa.

민간약 "사철나무잎"의 생약학적 연구 (Pharmacognostical Studies on the Folk Medicine 'SaCheolNaMuIp')

  • 배지영;김성룡;박종희
    • 생약학회지
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    • 제42권4호
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    • pp.289-292
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    • 2011
  • Korean folk medicine 'SaCheolNaMuIp' has been used to cure jaundice. The botanical origin of the crude drug has been no pharmacognostical confirmation on it. To clarify the botanical origin of 'SaCheolNaMuIp', the morphological and anatomical characteristics of the leaves of Euonymus species growing in Korea, i.e. E. japonica and E. fortunei var. radicans were studied. As a result, it was clarifyed that SaCheolNaMuIp was the leaf of Euonymus japonica.

민간약 자귀나무의 생약학적 연구 (Pharmacognostical Studies on the Folk Medicine 'JaGuiNaMu')

  • 배지영;안미정;박종희
    • 생약학회지
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    • 제42권4호
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    • pp.293-296
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    • 2011
  • 'JaGuiNaMu' is one of the Korean crude drugs used mainly to cure neuralgia, bone fracture, jaundice, and headache. With regard to the botanical origin of 'JaGuiNaMu', it has been considered to be Albizzia species of Leguminosae, but there was no pharmacognostical confirmation on it. To clarify the botanical origin of 'JaGuiNaMu', the anatomical characteristics of the branch of Albizzia species growing wild in Korea, A. julibrissin and A. coreana were studied. As a result, it was clarified that 'JaGuiNaMu' was the branch of Albizzia julibrissin.