Hee Chan Kim
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View article: Scalable ion concentration polarization dialyzer for peritoneal dialysate regeneration
Scalable ion concentration polarization dialyzer for peritoneal dialysate regeneration Open
A wearable artificial kidney (WAK) stands poised to offer dialysis treatment with maximal temporal and spatial flexibility for end-stage renal disease (ESRD) patients, while portability has not yet been achieved due to difficulties in port…
View article: Discovery of a Novel Multitarget Analgesic Through an In Vivo-guided Approach
Discovery of a Novel Multitarget Analgesic Through an In Vivo-guided Approach Open
Pain is a multifaceted condition influenced by peripheral, central, immune, and psychological factors. Targeting multiple pathways provides a holistic approach, enhancing efficacy, minimizing side effects, and reducing tolerance compared t…
View article: Author Correction: A machine learning-based diagnostic model associated with knee osteoarthritis severity
Author Correction: A machine learning-based diagnostic model associated with knee osteoarthritis severity Open
View article: Biomechanical Gait Analysis Using a Smartphone-Based Motion Capture System (OpenCap) in Patients with Neurological Disorders
Biomechanical Gait Analysis Using a Smartphone-Based Motion Capture System (OpenCap) in Patients with Neurological Disorders Open
This study evaluates the utility of OpenCap (v0.3), a smartphone-based motion capture system, for performing gait analysis in patients with neurological disorders. We compared kinematic and kinetic gait parameters between 10 healthy contro…
View article: Estimation of patient-reported outcome measures based on features of knee joint muscle co-activation in advanced knee osteoarthritis
Estimation of patient-reported outcome measures based on features of knee joint muscle co-activation in advanced knee osteoarthritis Open
Electromyography (EMG) is considered a potential predictive tool for the severity of knee osteoarthritis (OA) symptoms and functional outcomes. Patient-reported outcome measures (PROMs), such as the Western Ontario and McMaster Universitie…
View article: The Association between Hemoglobin Level and Risk of Developing Dementia : National Health Screening Cohort in Korea
The Association between Hemoglobin Level and Risk of Developing Dementia : National Health Screening Cohort in Korea Open
View article: Validation of Electrocardiogram Based Photoplethysmogram Generated Using U-Net Based Generative Adversarial Networks
Validation of Electrocardiogram Based Photoplethysmogram Generated Using U-Net Based Generative Adversarial Networks Open
View article: Performance Analysis on Seoul Regional Education Welfare Centers Focusing on the Comparison of Students, Guardians, and Teachers
Performance Analysis on Seoul Regional Education Welfare Centers Focusing on the Comparison of Students, Guardians, and Teachers Open
본 연구는 서울시교육청 지역교육복지센터의 성과를 학생, 보호자, 교사의 관점에서 파악하여 발전방안을 모색하고자 하였다. 이를 위해 서울시교육청 지역교육복지센터 서비스를 이용한 학생 895명, 보호자 851명, 그리고 교사 541명을 대상으로 서울시교육청 지역교육복지센터 서비스에 대한 만족도와 추가 지원의 필요도를 IPA 분석을 통해 파악했다. 주요한 분석결과와 그에 대한 논의는 다음과 같다. 첫째, 대상별 차이를 보면 학생의…
View article: Development of generalizable automatic sleep staging using heart rate and movement based on large databases
Development of generalizable automatic sleep staging using heart rate and movement based on large databases Open
View article: Feasibility of an inertial measurement unit sensor-based guiding system for benign paroxysmal positional vertigo treatment: A pilot study
Feasibility of an inertial measurement unit sensor-based guiding system for benign paroxysmal positional vertigo treatment: A pilot study Open
Performing an accurate canalith repositioning procedure (CRP) is important for treating benign paroxysmal positional vertigo, because inadequate rotational head angles can result in ineffective otolith mobilization and consequent treatment…
View article: A Study on Performance Evaluation and Operation Plan of Seoul Regional Educational Welfare Center
A Study on Performance Evaluation and Operation Plan of Seoul Regional Educational Welfare Center Open
본 연구는 서울시교육청 지역교육복지센터의 성과를 분석하여 향후 운영 방안에 대한 정책적 시사점을 제공하고자 했다. 이를 위해 서울시교육청 지역교육복지센터 서비스를 이용한 학생 895명을 대상으로 다음과 같은 두 가지 조사를 수행했다. 첫째, 서울시교육청 지역교육복지센터 서비스에 대한 만족도와 추가 지원의 필요도를 파악했다. 둘째, 서비스 이용 이후의 변화도, 이용의 적합도, 충족성, 접근성, 안정성을 분석했다. 주요한 분석결…
View article: Prediction of Increased Intracranial Pressure in Traumatic Brain Injury Using Quantitative Electroencephalogram in a Porcine Experimental Model
Prediction of Increased Intracranial Pressure in Traumatic Brain Injury Using Quantitative Electroencephalogram in a Porcine Experimental Model Open
Continuous and non-invasive measurement of intracranial pressure (ICP) in traumatic brain injury (TBI) is important to recognize increased ICP (IICP), which can reduce treatment delays. The purpose of this study was to develop an electroen…
View article: Author Correction: A machine learning-based diagnostic model associated with knee osteoarthritis severity
Author Correction: A machine learning-based diagnostic model associated with knee osteoarthritis severity Open
View article: Feasibility study of a novel rectal cooling system for hypothermic radical prostatectomy in a swine model
Feasibility study of a novel rectal cooling system for hypothermic radical prostatectomy in a swine model Open
Thermal damage and inflammatory responses of the sphincter and neurovascular bundles (NVBs) are responsible for post-prostatectomy incontinence and erectile dysfunction. Intraoperative hypothermia in the pelvic cavity may reduce the occurr…
View article: Effect of an anti-adhesion agent on vision-based assessment of cervical adhesions after thyroid surgery: randomized, placebo-controlled trial
Effect of an anti-adhesion agent on vision-based assessment of cervical adhesions after thyroid surgery: randomized, placebo-controlled trial Open
Many patients experience cervical adhesions after thyroid surgery. To date, however, no studies have objectively measured the effects of anti-adhesion agents on cervical adhesion symptoms. This study evaluated the effects of an anti-adhesi…
View article: Development and Pilot-Test of Blockchain-Based MyHealthData Platform
Development and Pilot-Test of Blockchain-Based MyHealthData Platform Open
The concept of MyData emerged as a paradigm shift in personal data management and the process of seeking to transform the current organization-centered system. MyData enables the utilization of one’s own personal information that is scatte…
View article: Reliability of Suprahyoid and Infrahyoid Electromyographic Measurements during Swallowing in Healthy Subjects
Reliability of Suprahyoid and Infrahyoid Electromyographic Measurements during Swallowing in Healthy Subjects Open
Myung Woo Park, M.D., Dongheon Lee, Ph.D., Han Gil Seo, M.D., Ph.D., Tai Ryoon Han, M.D., Ph.D., Jung Chan Lee, Ph.D., Hee Chan Kim, Ph.D., Byung-Mo Oh, M.D., Ph.D.. J Korean Dysphagia Soc 2021;11:128-36. https://doi.org/10.34160/jkds.2021…
View article: Development and Pilot-test of Blockchain based MyHealthData Platform (Preprint)
Development and Pilot-test of Blockchain based MyHealthData Platform (Preprint) Open
BACKGROUND The concept of MyData emerged as a paradigm shift in personal data management and the process of seeking to transform the current organization-centered system. MyData enables the utilization of one’s own personal information th…
View article: EEG-Based Prediction of the Recovery of Carotid Blood Flow during Cardiopulmonary Resuscitation in a Swine Model
EEG-Based Prediction of the Recovery of Carotid Blood Flow during Cardiopulmonary Resuscitation in a Swine Model Open
The recovery of cerebral circulation during cardiopulmonary resuscitation (CPR) is important to improve the neurologic outcomes of cardiac arrest patients. To evaluate the feasibility of an electroencephalogram (EEG)-based prediction model…
View article: Point-of-care testing of plasma free hemoglobin and hematocrit for mechanical circulatory support
Point-of-care testing of plasma free hemoglobin and hematocrit for mechanical circulatory support Open
View article: Suture tie-down forces and cyclic contractile forces after an undersized tricuspid annuloplasty using a 3-dimensional rigid ring in an ovine model
Suture tie-down forces and cyclic contractile forces after an undersized tricuspid annuloplasty using a 3-dimensional rigid ring in an ovine model Open
OBJECTIVES This study was conducted to measure suture tie-down forces and evaluate cyclic contractile forces (CCFs) in beating hearts after undersized 3-dimensional (3D) rigid-ring tricuspid valve annuloplasty (TAP). METHODS Eight force tr…
View article: Clinical outcome prediction from analysis of microelectrode recordings using deep learning in subthalamic deep brain stimulation for Parkinson`s disease
Clinical outcome prediction from analysis of microelectrode recordings using deep learning in subthalamic deep brain stimulation for Parkinson`s disease Open
Background Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an effective treatment for improving the motor symptoms of advanced Parkinson’s disease (PD). Accurate positioning of the stimulation electrodes is necessary for b…
View article: Complementary Photoplethysmogram Synthesis From Electrocardiogram Using Generative Adversarial Network
Complementary Photoplethysmogram Synthesis From Electrocardiogram Using Generative Adversarial Network Open
Photoplethysmogram (PPG) is one of the most widely measured biosignals alongside electrocardiogram (ECG). Due to the simplicity of measurement and the advent of wearable devices, there have been growing interest in using PPG for a variety …
View article: Effect of age on the gap-prepulse inhibition of the cortical N1-P2 complex in humans as a step towards an objective measure of tinnitus
Effect of age on the gap-prepulse inhibition of the cortical N1-P2 complex in humans as a step towards an objective measure of tinnitus Open
The gap-prepulse inhibition of the acoustic startle reflex has been widely used as a behavioral method for tinnitus screening in animal studies. The cortical-evoked potential gap-induced inhibition has also been investigated in animals as …
View article: Deep-learning-based enhanced optic-disc photography
Deep-learning-based enhanced optic-disc photography Open
Optic-disc photography (ODP) has proven to be very useful for optic nerve evaluation in glaucoma. In real clinical practice, however, limited patient cooperation, small pupils, or media opacities can limit the performance of ODP. The purpo…
View article: A machine learning-based diagnostic model associated with knee osteoarthritis severity
A machine learning-based diagnostic model associated with knee osteoarthritis severity Open
Knee osteoarthritis (KOA) is characterized by pain and decreased gait function. We aimed to find KOA-related gait features based on patient reported outcome measures (PROMs) and develop regression models using machine learning algorithms t…
View article: Estimation and Validation of Arterial Blood Pressure Using Photoplethysmogram Morphology Features in Conjunction With Pulse Arrival Time in Large Open Databases
Estimation and Validation of Arterial Blood Pressure Using Photoplethysmogram Morphology Features in Conjunction With Pulse Arrival Time in Large Open Databases Open
Although various predictors and methods for BP estimation have been proposed, differences in study designs have led to difficulties in determining the optimal method. This study presents analyses of BP estimation methods using 2.4 million …
View article: Evaluation of Surgical Skills during Robotic Surgery by Deep Learning-Based Multiple Surgical Instrument Tracking in Training and Actual Operations
Evaluation of Surgical Skills during Robotic Surgery by Deep Learning-Based Multiple Surgical Instrument Tracking in Training and Actual Operations Open
As the number of robotic surgery procedures has increased, so has the importance of evaluating surgical skills in these techniques. It is difficult, however, to automatically and quantitatively evaluate surgical skills during robotic surge…
View article: Reconstruction of 12-Lead Electrocardiogram from a Three-Lead Patch-Type Device Using a LSTM Network
Reconstruction of 12-Lead Electrocardiogram from a Three-Lead Patch-Type Device Using a LSTM Network Open
Reconstructing a standard 12-lead electrocardiogram (ECG) from signals received from electrodes packed into a patch-type device is a challenging task in the field of medical instrumentation. All attempts to obtain a clinically valid 12-lea…
View article: Frontal EEG Changes with the Recovery of Carotid Blood Flow in a Cardiac Arrest Swine Model
Frontal EEG Changes with the Recovery of Carotid Blood Flow in a Cardiac Arrest Swine Model Open
Monitoring cerebral circulation during cardiopulmonary resuscitation (CPR) is essential to improve patients’ prognosis and quality of life. We assessed the feasibility of non-invasive electroencephalography (EEG) parameters as predictive f…