• 제목/요약/키워드: Cardiac diagnostics

검색결과 12건 처리시간 0.024초

Patient-Specific Mapping between Myocardium and Coronary Arteries using Myocardial Thickness Variation

  • Dongjin Han
    • International journal of advanced smart convergence
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    • 제13권2호
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    • pp.187-194
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    • 2024
  • For precise cardiac diagnostics and treatment, we introduce a novel method for patient-specific mapping between myocardial and coronary anatomy, leveraging local variations in myocardial thickness. This complex system integrates and automates multiple sophisticated components, including left ventricle segmentation, myocardium segmentation, long-axis estimation, coronary artery tracking, and advanced geodesic Voronoi distance mapping. It meticulously accounts for variations in myocardial thickness and precisely delineates the boundaries between coronary territories according to the conventional 17-segment myocardial model. Each phase of the system provides a step-by-step approach to automate coronary artery mapping onto the myocardium. This innovative method promises to transform cardiac imaging by offering highly precise, automated, and patient-specific analyses, potentially enhancing the accuracy of diagnoses and the effectiveness of therapeutic interventions for various cardiac conditions.

호흡패턴에 따른 성인의 심박수 동태 해석 (The Serial Change Analysis of Heart Rate According to Expiration-to-inspiration Time Ratio in Adults)

  • 박영배;한경숙;남동현
    • 대한예방한의학회지
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    • 제14권2호
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    • pp.105-120
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    • 2010
  • Objectives : This study aims to evaluate the effects of expiration-to-inspiration time ratio (E/I-ratio) on heart rate, which represents cardiac autonomic function, and cold-heat in the healthy people. Methods : 49 healthy young volunteers(male : female = 32 : 17) were recruited in the study. The participants completed the questionnaire for yin-yang pattern identification and then we measured the chest plethysmogram for respiration signal and the electrocardiogram for NN intervals during different E/I-ratio from 1 to 2. We compared heart rate variability including RMS-SD, VLF, LF and HF, and the trend-cycle factors decomposed from NN interval data by time series analysis among the respective E/I-ratio. We also confirmed the difference on the trend-cycle factors according to the score of the questionnaire for cold and heat pattern identification. Results : There were differences on the trend-cycle factors from NN interval data, but no significant difference on heart rate variability, among the respective E/I-ratio. We also found significant relationship between the trend-cycle factors and the heat pattern identification scores. Conclusions : The results indicate that cardiac autonomic function can be modulated by the E/I-ratio and the modulation will be slower and more tendencious than respiratory sinus arrhythmia.

고령자의 맥상 특성에 대한 맥파분석적인 연구 (Study on the character of the old aged pulsation)

  • 김경철;이정원;류경호;강희정
    • 대한한의진단학회지
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    • 제12권2호
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    • pp.1-7
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    • 2008
  • Objectives: The basis research of aged people's healthcare technology is very important, because our nation goes into an aged society rapidly. Especially in traditional medicine, pulse shapes of aged people were supposed to weak and empty pulse until now, but any objective measurement and compare research do not taken. Methods and Results: Therefore in this study we design observation study to find characteristic of pulse between younger group (age $20{\sim}30$) and elder group (age $43{\sim}80$) in Busan area. We used 3-dimensional pulse analyzer '3-D MAC' (Daeyomedi Co., Ltd.). And major parameters for comparison are 1) pulse height (h1), 2) applied pressure, 3) pulse power (energy), 4) high pressure duration (w) and 5) R-AI. Conclusions: According to analysis result, elder people's pulse has more large value in pulse height, applied pressure and pulse power than younger's that. It reveals that elder people in modernized lifestyle has Yang symptoms as well Yin symptoms. Consequently we need new method to care elder people's health, and this means more important direction than old text book. From now on verification research with objective diagnosis device like 3-D MAC, must be activated to build of evidence in traditional medicine. Cause traditional medicine's spirit of care and prevention is suitable to care elder people's cardiac and cerebral vascular disease those are have close relation with elder people.

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심장성 원인의 호흡곤란 및 두근거림을 방기복령탕가미방(Fangji Fuling Decoction)을 포함한 복합 한의치료로 호전시킨 증례 1례 - 증례보고 (Improvement of Dyspnea and Palpitations of Cardiac Origin Using Comprehensive Traditional Korean Medicine Treatment Including Bangibokryeong-tang (Fangji Fuling Decoction) : A Case Report)

  • 김주민;박다솔;이혜련;임정태
    • 대한한방내과학회지
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    • 제45권1호
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    • pp.100-110
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    • 2024
  • This case report demonstrates the effect of modified Bangibokryeong-tang (Fangji Fuling Decoction), a traditional herbal prescription in treating dyspnea and palpitations, symptoms that often lead to anxiety and reduced quality of life of cardiac patients. A female patient in her late 70s with congenital valve malformation and atrial fibrillation presented with dyspnea and palpitations, each rated at a severity of 8 on a numeric rating scale (NRS). After voluntarily discontinuing Western medication, she received modified BGBRT for 25 days, leading to significant symptom relief and NRS improvement to 0-2. The patient reported maintaining an improved condition and showed a significant increase in vitality. This improvement was sustained for 7 months, but the symptoms recurred; thus, modified BGBRT was restarted. Modified BGBRT showed substantial effects on persistent cardiac-origin dyspnea and palpitations. Thus, this TKM has the potential to manage symptoms and enhance the quality of life of cardiac patients.

인체를 대상으로 하는 혈허 혈어증 모델 개발을 위한 손톱 주름살의 모세혈관에 대한 영상장치 연구 ( I ) (Study on the Image Analysis System of Nail-fold Capillary Vessel( I ))

  • 김경철;황원덕
    • 동의생리병리학회지
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    • 제18권3호
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    • pp.789-791
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    • 2004
  • We study on the video-capillaroscopy system for look a.t the nail fold capillary by the computer. This system is composed of the luminous source-producer, image-input, phase microscope. The method and contents of observation on this system are seperated from the image-analysis of nail fold capillary form-patterns and the currents of hematocytes. Therefore we think this system is possible to the practical clinic use for the basic model on the cardiac failure and the deficiency(血虛), stagnant(血瘀) of blood in human.

소자도(心磁圖)의 평가(評價) 지표(指標)에 대한 문헌적(文獻的) 고료(考寮) - Pub M트떼 등록된 소자도(心磁圖) 관련 214편의 청가지표 고찰 - (A Study of Literature on the Index for Estimating the Ablility of Magnetocardiography. - A research on the index used in the 214 papers register Pub Med -)

  • 김호일;남동현;박영재;홍인기;이동훈;허영;박영배
    • 대한한의진단학회지
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    • 제10권1호
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    • pp.46-53
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    • 2006
  • Magnetocardiography provides non-invasive three-dimensional electroanatomical imaging of cardiac electrophysiology. The aim of this study is to find the index for using the indicator of magnetocardiography. An object of this study is 214 papers registered on www.pubmed.com. The index used in magnetocardiography is the interval, morphology, amplitude and integrals of QRS complex, P wave, T wave. The current density and electric field map are used, too. A new try of the index is LAS, W-HEAD, Relative Smoothness index(RS index) etc.

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OMICS approaches in cardiovascular diseases: a mini review

  • Sohag, Md. Mehadi Hasan;Raqib, Saleh Muhammed;Akhmad, Syaefudin Ali
    • Genomics & Informatics
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    • 제19권2호
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    • pp.13.1-13.8
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    • 2021
  • Ranked in the topmost position among the deadliest diseases in the world, cardiovascular diseases (CVDs) are a global burden with alterations in heart and blood vessels. Early diagnostics and prognostics could be the best possible solution in CVD management. OMICS (genomics, proteomics, transcriptomics, and metabolomics) approaches could be able to tackle the challenges against CVDs. Genome-wide association studies along with next-generation sequencing with various computational biology tools could lead a new sight in early detection and possible therapeutics of CVDs. Human cardiac proteins are also characterized by mass spectrophotometry which could open the scope of proteomics approaches in CVD. Besides this, regulation of gene expression by transcriptomics approaches exhibits a new insight while metabolomics is the endpoint on the downstream of multi-omics approaches to confront CVDs from the early onset. Although a lot of challenges needed to overcome in CVD management, OMICS approaches are certainly a new prospect.

한방기공체조가 두뇌력, 심박변이율, 생혈액형태에 미치는 영향 (Effect of the Oriental Medicine Gi-Gong Exercise on the Brain Power, HRV, Live Blood Condition in the Youth)

  • 이정원;김이순;김경철
    • 동의생리병리학회지
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    • 제21권1호
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    • pp.126-135
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    • 2007
  • This study was conducted to identify the effects of the oriental medicine Qigong Exercise on the brain power, HRV, pulsation, live blood condition among young boys and girls. The study was performed with two group(control group and experimental group) in a pre-test/post-test design. The subjects were 44 young boys and girls selected by a some middle school in Busan. The oriental medicine Qigong Exercise program consists of 80-minute sessions three times a week over 5 months. All of the subjects were examined on the congnition assessment tool, stress assessment tool, oriental medicine pulsation 3-D MAC, live blood condition analyzer Prior and post surveys were measured before and after the experiment. In the cognition assessment, the amplitude of ERS were increased afer Qigong Exercise. The Success and the Concentration were significantly increased afer Qigong Exercise, the Error was significantly decreased afer Qigong Exercise. The Cognition strength was significantly increased, but the Reponse time was not significantly decreased afer Qigong Exercise. And the Workload was not significantly decreased, the Total Score was not significantly increased afer Qigong Exercise. Among the stress assessment, RRV tachogram's ‘mean RR’ was significantly increased, ‘mean HRV’ was significantly decreased afer Qigong Exercise. SDNN was not significantly increased, Complexity was not significantly increased afer Qigong Exercise. And TP(RRV power's total power) was not significantly increased, VLF and HF was significantly increased, and LF was significantly decreased afer Qigong Exercise. ANS's norm LF was not significantly decreased, but norm HF was significantly increased afer Qigong Exercise. In the RRV's Phase Plot, RMSSD and SDSD were not significantly increased, pnn50 was not significantly decreased afer Qigong Exercise. On the whole, Parasympathetic Activity and Stress Endurance were significantly increased, but Cardiac Activity and Physical Arousal were not significantly increased afer Qigong Exercise. Cardiac Aging was not significantly decreased afer Qigong Exercise. Sympathetic Activity, Autonomic Nervous System Balance and Heart-load were not significantly decreased afer Qigong Exercise. In the pulsation, press power was increased(15%), and w/t(pressurization time / pulsation time) was decreased(20%) afer Oigong Exercise. And the live blood condition was not changed afer Qigong Exercise. As mentioned above; the oriental medicine Qigong Exercise program was identified the effects of the inspiration of the brain power, heart rate and anti-stress.

금궤요략(金匱要略) 심통 처방 중 과루해백반하탕과 과루해백백주탕이 대식세포 극성화에 미치는 영향 (Effects of 『Geum-Gwe-Yo-Ryak(金匱要略)』 Prescription for Chest Pain Including Kwaruhaebaekbanha-tang and Kwaruhaebaekpaekju-tang on Macrophage Polarization)

  • 손창현;이상민;유가람;이승준;임동우;김혁;박원환;김재은
    • 대한한의학회지
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    • 제40권2호
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    • pp.51-62
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    • 2019
  • Objectives: This study was designed to evaluate the macrophages polarization of traditional Korean medicine on cardiac pain about Geum-Gwe-Yo-Ryak's two prescriptions including Kwaruhaebaekbanha-tang (KHB) and Kwaruhaebaekpaekju-tang (KHP). Materials and methods: Flow cytometry analysis was used to measure the changes in the ratio of M1 type and M2 type macrophages. Protein expression of nuclear factor-like 2 (Nrf2), heme oxygenase-1 (HO-1), inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2) were measured by Western Blot, and ABCA1 and SR-B1 were detected by real time PCR (RT-PCR). Intracellular lipid accumulation was measured by Oil Red O staining (ORO staining). Results: KHB and KHP increase anti-oxidative activity related protein levels including Nrf2 and HO-1. Furthermore, KHB and KHP inhibit lipid accumulation on intracellular levels through induction of ATP binding receptor cassette subfamily A member 1 (ABCA1) and scavenging receptor class B member 1 (SR-B1), respectively. Finally, KHB and KHP also blocked pro-inflammatory mediators including tumor necrosis factor-alpha ($TNF{\alpha}$) and interleukin-6 (IL-6), iNOS and COX-2 expression. Conclusion: This study suggests that KHB and KHP potently regulate the M1/M2 macrophage polarization.

Mucopolysaccharidoses in Taiwan

  • Lin, Hsiang-Yu;Chuang, Chih-Kuang;Lin, Shuan-Pei
    • Journal of mucopolysaccharidosis and rare diseases
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    • 제4권1호
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    • pp.14-20
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    • 2018
  • Mucopolysaccharidoses (MPSs) are a group of rare inherited metabolic disorders caused by specific lysosomal enzyme deficiencies leading to the sequential degradation of glycosaminoglycans, causing substrate accumulation in various cells and tissues and progressive multiple organ dysfunction. The rare disease medical care team at Mackay Memorial Hospital in Taiwan has been dedicated to the study of MPSs for more than 20 years. Since 1999, more than 50 academic papers focusing on MPSs have been published in international medical journals. Topics of research include the following items regarding MPSs: incidence, natural history, clinical manifestations, gene mutation characteristics, cardiac function, bone mineral density, sleep studies, pulmonary function tests, hearing assessments, percutaneous endoscopic gastrostomy, anesthetic experience, imaging analysis, special biochemical tests, laboratory diagnostics, global expert consensus conferences, prenatal diagnosis, new drug clinical trials, newborn screening, and treatment outcomes. Of these published academic research papers, more than half were cross-domain, cross-industry, and international studies with results in cooperation with experts from European, American and other Asian countries. A cross-specialty collaboration platform was established based on high-risk population screening criteria with the acronym "BECARE" (Bone and joints, Eyes, Cardiac and central nervous system, Abdomen and appearance, Respiratory system, and Ear, nose, and throat involvement). Through this platform, orthopedic surgeons, rheumatologists, ophthalmologists, cardiologists, rehabilitation physicians, gastroenterologists, otorhinolaryngologists, and medical geneticists have been educated with regards to awareness of suspected cases of MPSs patients to allow for a further confirmative diagnosis of MPSs. Because of the progressive nature of the disease, an early diagnosis and early multidisciplinary therapeutic interventions including surgery, rehabilitation programs, symptom-based treatments, hematopoietic stem cell transplantation, and enzyme replacement therapy, are very important.