• Title/Summary/Keyword: Anatomical research

Search Result 619, Processing Time 0.026 seconds

Current Status of Magnetic Resonance Imaging in Patients with Malignant Uterine Neoplasms: A Review

  • Yu-Ting Huang;Yen-Ling Huang;Koon-Kwan Ng;Gigin Lin
    • Korean Journal of Radiology
    • /
    • v.20 no.1
    • /
    • pp.18-33
    • /
    • 2019
  • In this study, we summarize the clinical role of magnetic resonance imaging (MRI) in the diagnosis of patients with malignant uterine neoplasms, including leiomyosarcoma, endometrial stromal sarcoma, adenosarcoma, uterine carcinosarcoma, and endometrial cancer, with emphasis on the challenges and disadvantages. MRI plays an essential role in patients with uterine malignancy, for the purpose of tumor detection, primary staging, and treatment planning. MRI has advanced in scope beyond the visualization of the many aspects of anatomical structures, including diffusion-weighted imaging, dynamic contrast enhancement-MRI, and magnetic resonance spectroscopy. Emerging technologies coupled with the use of artificial intelligence in MRI are expected to lead to progressive improvement in case management of malignant uterine neoplasms.

Epidural Hematoma after Minor Trauma on Patient with Biparietal Osteodystrophy

  • Yilmaz, Muhammet Bahadir;Egemen, Emrah;Ozbakir, Bora;Tekiner, Ayhan
    • Journal of Korean Neurosurgical Society
    • /
    • v.53 no.1
    • /
    • pp.57-58
    • /
    • 2013
  • Thinning of parietal bone bilaterally is extremely rare but well known phenomenon. Approximate prevalence is 0.4-0.5% according to radiological scans, case reports and anthropologic researches. Even though biparietal osteodystrophy occurs mostly in over 60-year-old women, it shows no special association with race or geographical area tendency. Current definition was changed by understanding that is a pathological situation, not an anatomical variety or result of growing old in time. Biparietal osteodystrophy may have an unusual presentation and treatment still remains unclear. We aim to present a patient with biparietal osteodystrophy associated with minor head trauma that caused parietal fracture and epidural hematoma underneath.

Pharmacognostic Evaluation of the Flower of Alcea rosea L.

  • Mehrotra, Shanta;Rawat, A.K.S.;Shome, Usha
    • Natural Product Sciences
    • /
    • v.5 no.1
    • /
    • pp.39-47
    • /
    • 1999
  • The flowers of Alcea rosea L., Malvaceae, sold in the Indian market under the trade name 'Gulkhairo', are well known for their expectorant, cooling and diuretic properties and used in many indigenous cough mixtures in India. The present paper deals with the detailed pharmacognosy of the floral parts including morphological, anatomical, phytochemical and fluorescence characters. Some of the diagnostic features of the drug are : pedicel characterized by multicellular appendages, stellate hairs, rosette crystals of Ca-oxalate, starch sheath and large sized mucilage canals; sepals having distinctive multicellular appendages arranged in a semilunar fashion present adaxially at their base; monadelphous stamens, pollen grains pentaporate provided with dimorphic spines; placentation axile, ovules campylotropous; dark green fluorescence of the powder with nitrocellulose in amyl acetate and yellow fluorescence of trichomes under Fluorescence microscope.

  • PDF

Comparative Anatomic Structures of Nonhuman Primate Lungs 2. Tracheobronchial Geometry and Lung Lobe Weight (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))

  • Kim, Moo Gang;Kim, James C.S.
    • Korean Journal of Veterinary Research
    • /
    • v.19 no.1
    • /
    • pp.9-15
    • /
    • 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.

  • PDF

Reconstructing individual hand models from motion capture data

  • Endo, Yui;Tada, Mitsunori;Mochimaru, Masaaki
    • Journal of Computational Design and Engineering
    • /
    • v.1 no.1
    • /
    • pp.1-12
    • /
    • 2014
  • In this paper, we propose a new method of reconstructing the hand models for individuals, which include the link structure models, the homologous skin surface models and the homologous tetrahedral mesh models in a reference posture. As for the link structure model, the local coordinate system related to each link consists of the joint rotation center and the axes of joint rotation, which can be estimated based on the trajectories of optimal markers on the relative skin surface region of the subject obtained from the motion capture system. The skin surface model is defined as a three-dimensional triangular mesh, obtained by deforming a template mesh so as to fit the landmark vertices to the relative marker positions obtained motion capture system. In this process, anatomical dimensions for the subject, manually measured by a caliper, are also used as the deformation constraints.

Application of Photobiomodulation in Hearing Research: Animal Study

  • Lee, Jae-Hun;Jung, Jae Yun
    • Medical Lasers
    • /
    • v.9 no.1
    • /
    • pp.1-5
    • /
    • 2020
  • Hearing organs have unique characteristics and have a role in processing external sensory signals. Sensory hair cells and nerve fibers in the organ of Corti can be damaged by various causes and they do not regenerate themselves. Medication used for clinical treatment for the inner ear is limited due to the anatomical structure of the inner ear. Photobiomodulation (PBM) is a therapeutic approach that uses various sources of light and the success of PBM therapy is highly reliant on the parameters of the light sources. The positive effects of PBM have been reported in various clinical fields. This paper summarizes the previously reported research on PBM for the treatment of hearing damage in animal models.

Deep Learning in Dental Radiographic Imaging

  • Hyuntae Kim
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.51 no.1
    • /
    • pp.1-10
    • /
    • 2024
  • Deep learning algorithms are becoming more prevalent in dental research because they are utilized in everyday activities. However, dental researchers and clinicians find it challenging to interpret deep learning studies. This review aimed to provide an overview of the general concept of deep learning and current deep learning research in dental radiographic image analysis. In addition, the process of implementing deep learning research is described. Deep-learning-based algorithmic models perform well in classification, object detection, and segmentation tasks, making it possible to automatically diagnose oral lesions and anatomical structures. The deep learning model can enhance the decision-making process for researchers and clinicians. This review may be useful to dental researchers who are currently evaluating and assessing deep learning studies in the field of dentistry.

Guidelines for Manufacturing and Application of Organoids: Brain

  • Taehwan Kwak;Si-Hyung Park;Siyoung Lee;Yujeong Shin;Ki-Jun Yoon;Seung-Woo Cho;Jong-Chan Park;Seung-Ho Yang;Heeyeong Cho;Heh-In Im;Sun-Ju Ahn;Woong Sun;Ji Hun Yang
    • International Journal of Stem Cells
    • /
    • v.17 no.2
    • /
    • pp.158-181
    • /
    • 2024
  • This study offers a comprehensive overview of brain organoids for researchers. It combines expert opinions with technical summaries on organoid definitions, characteristics, culture methods, and quality control. This approach aims to enhance the utilization of brain organoids in research. Brain organoids, as three-dimensional human cell models mimicking the nervous system, hold immense promise for studying the human brain. They offer advantages over traditional methods, replicating anatomical structures, physiological features, and complex neuronal networks. Additionally, brain organoids can model nervous system development and interactions between cell types and the microenvironment. By providing a foundation for utilizing the most human-relevant tissue models, this work empowers researchers to overcome limitations of two-dimensional cultures and conduct advanced disease modeling research.

Development and application of stent-based image guided navigation system for oral and maxillofacial surgery (구강외과 수술용 스텐트 기반 영상유도 수술 시스템의 개발)

  • Lee, Woo-Jin;Kim, Dae-Seung;Yi, Won-Jin;Lee, Sam-Sun;Choi, Soon-Chul;Heo, Min-Suk;Huh, Kyung-Hoe;Kim, Myung-Jin;Lee, Jee-Ho
    • Imaging Science in Dentistry
    • /
    • v.39 no.3
    • /
    • pp.149-156
    • /
    • 2009
  • Purpose : The purpose of this study was to develop a stent-based image guided surgery system and to apply it to oral and maxillofacial surgeries for anatomically complex sites. Materials and Methods : We devised a patient-specific stent for patient-to-image registration and navigation. Three-dimensional positions of the reference probe and the tool probe were tracked by an optical camera system and the relative position of the handpiece drill tip to the reference probe was monitored continuously on the monitor of a PC. Using 8 landmarks for measuring accuracy, the spatial discrepancy between CT image coordinate and physical coordinate was calculated for testing the normality. Results : The accuracy over 8 anatomical landmarks showed an overall mean of $0.56{\pm}0.16\;mm$. The developed system was applied to a surgery for a vertical alveolar bone augmentation in right mandibular posterior area and possible interior alveolar nerve injury case of an impacted third molar. The developed system provided continuous monitoring of invisible anatomical structures during operation and 3D information for operation sites. The clinical challenge showed sufficient accuracy and availability of anatomically complex operation sites. Conclusion : The developed system showed sufficient accuracy and availability in oral and maxillofacial surgeries for anatomically complex sites.

  • PDF