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Simple Maneuver for Estimating the Depth of the Focal Activation Source in Myocardium

Oh S

BACKGROUND AND OBJECTIVES: It is difficult to estimate the depth of the focal source by activation mapping. The present study was performed to demonstrate the usefulness of a simple maneuver...
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Feasibility of Adjustable Electrodes for Radiofrequency Ablation of Benign Thyroid Nodules

Lee J, Shin JH, Hahn SY, Park KW, Choi JS

OBJECTIVE: The purpose of this study was to evaluate a novel radiofrequency ablation (RFA) application utilizing an adjustable electrode for treatment of benign thyroid nodules. MATERIALS AND METHODS: From April 2011...
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Effect of Cochlear Implant Electrode Array Design on Electrophysiological and Psychophysical Measures: Lateral Wall versus Perimodiolar Types

Lee JY, Hong SH, Moon IJ, Kim EY, Baek E, Seol HY, Kang S

BACKGROUND AND OBJECTIVES: The present study aims to investigate whether the cochlear implant electrode array design affects the electrophysiological and psychophysical measures. SUBJECTS AND METHODS: Eighty five ears were used as...
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Five-fold Gastrointestinal Electrical Stimulation With Electromyography-based Activity Analysis: Towards Multilocular Theranostic Intestinal Implants

Schiemer J, Heimann A, Somerlik-Fuchs KH, Ruff R, Hoffmann K, Baumgart J, Berres M, Lang H, Kneist W

  • KMID: 2454644
  • J Neurogastroenterol Motil.
  • 2019 Jul;25(3):461-470.
  • doi: 10.5056/jnm19045
BACKGROUND/AIMS: Motility disorders are common and may affect the entire gastrointestinal (GI) tract but current treatment is limited. Multilocular sensing of GI electrical activity and variable electrical stimulation (ES) is...
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Auditory Cortical Temporal Processing and Hemispheric Asymmetry Revealed by N1 Dipole Source Activity in Adult Cochlear Implant Users

Lee J, Han JH, Lee HJ

BACKGROUND AND OBJECTIVES: Cochlear implant (CI) changes the way that sound inputs are processed in the brain, possibly causing brain reorganization. Given that the pattern and degree of reorganization are...
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Clinical Usefulness of Intraoperative Motor-Evoked Potential Monitoring during Temporal Lobe Epilepsy Surgery

Koo DL, Lee WG, Hong SC, Seo DW

BACKGROUND AND PURPOSE: We aimed to determine the effectiveness of intraoperative neurophysiological monitoring focused on the transcranial motor-evoked potential (MEP) in patients with medically refractory temporal lobe epilepsy (TLE). METHODS: We...
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Numerical study on adjusting parameters to improve gaze estimation using planar approximations from electro-oculogram signal voltage ratios

Ishida F, Wakata K

Gaze or eye movements are used as a communication interface in daily life. Herein, we developed a simple method for gaze estimations based on planar approximations of voltage ratios calculated...
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Epilepsy Surgery in 2019: A Time to Change

Phi JH, Cho BK

Epilepsy has been known to humankind since antiquity. The surgical treatment of epilepsy began in the early days of neurosurgery and has developed greatly. Many surgical procedures have stood the...
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Ameliorating Effects of Electroacupuncture on Dysmotility, Inflammation, and Pain Mediated via the Autonomic Mechanism in a Rat Model of Postoperative Ileus

Murakami H, Li S, Foreman R, Yin J, Hirai T, Chen JD

  • KMID: 2449101
  • J Neurogastroenterol Motil.
  • 2019 Apr;25(2):286-299.
  • doi: 10.5056/jnm18094
BACKGROUND/AIMS: Postoperative ileus increases healthcare costs and reduces the postoperative quality of life (QOL). The aim of this study is to investigate effects and mechanisms of electroacupuncture (EA) at ST36...
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High-resolution Mapping of Hyperglycemia-induced Gastric Slow Wave Dysrhythmias

Du P, O'Grady G, Paskaranandavadivel N, Tang SJ, Abell T, Cheng LK

  • KMID: 2449100
  • J Neurogastroenterol Motil.
  • 2019 Apr;25(2):276-285.
  • doi: 10.5056/jnm18192
BACKGROUND/AIMS: It is now recognised that gastric dysrhythmias are best characterised by their spatial propagation pattern. Hyperglycemia is an important cause of gastric slow wave dysrhythmia, however, the spatiotemporal patterns...
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Feasibility of Revision Cochlear Implant Surgery for Better Speech Comprehension

Hwang K, Lee JY, Oh HS, Lee BD, Jung J, Choi JY

BACKGROUND AND OBJECTIVES: The purpose of this study was to evaluate the efficacy of revision cochlear implant (CI) surgery for better speech comprehension targeting patients with low satisfaction after first...
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Impact of Energy and Access Methods on Extrahepatic Tumor Spreading and the Ablation Zone: An Ex vivo Experiment Using a Subcapsular Tumor Model

Kim JS, Ko Y, Kwon H, Kim M, Lee JK

OBJECTIVE: To evaluate the impact of energy and access methods on extrahepatic tumor spreading and the ablation zone in an ex vivo subcapsular tumor mimic model with a risk of...
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Intraoperative Neurophysiologic Testing of the Perigastric Vagus Nerve Branches to Evaluate Viability and Signals along Nerve Pathways during Gastrectomy

Kong SH, Kim SM, Kim DG, Park KH, Suh YS, Kim TH, Kim IJ, Seo JH, Lim YJ, Lee HJ, Yang HK

PURPOSE: The perigastric vagus nerve may play an important role in preserving function after gastrectomy, and intraoperative neurophysiologic tests might represent a feasible method of evaluating the vagus nerve. The...
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Wearable EEG and beyond

Casson AJ

The electroencephalogram (EEG) is a widely used non-invasive method for monitoring the brain. It is based upon placing conductive electrodes on the scalp which measure the small electrical potentials that...
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Could Ultrasound-Guided Stimulation of Sural Nerve Affect Nerve Conduction Study?

Choi H, Chung SY, Kang S, Son SH, Yoon JS

OBJECTIVE: To determine anatomical variation of the sural nerve (SN) by ultrasonography (US) and compare sensory nerve action potential (SNAP) of the SN obtained by a control method to that...
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Evaluation of Subconjunctival Remnant Particles after High-frequency Radio-wave Electrosurgery for Conjunctivochalasis

Kim SH, Kim IT, Choi CY

PURPOSE: To investigate the clinical manifestations and properties of remnant particles in the subconjunctival space after high-frequency radio-wave electrosurgery for conjunctivochalasis. METHODS: We performed a retrospective, observational case series with in...
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US-Guided Radiofrequency Ablation for Low-Risk Papillary Thyroid Microcarcinoma: Efficacy and Safety in a Large Population

Lim HK, Cho SJ, Baek JH, Lee KD, Son CW, Son JM, Baek SM

OBJECTIVE: To evaluate the efficacy and safety of radiofrequency ablation (RFA) for low-risk papillary thyroid microcarcinoma (PTMC) in a large population. MATERIALS AND METHODS: Cases of 152 biopsy-proven PTMCs from 133...
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Provocative Discography Following Focal Selective Coagulation in a Patient with Chronic Lumbar Discogenic Pain

Kim D, Kim N, Lee SH

This is a case report of the provocative discographic findings before and after focal selective coagulation of the major annular fissure using intradiscal navigable catheter. A 46-year-old woman had a...
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In vitro fluoride release from five different fluoride varnishes

Kim JS, Byon MJ, Nam YT, Kim JB, Jeong SH

OBJECTIVES: This study aims to compare the fluoride-release between different fluorine varnish under in vitro experimental conditions. METHODS: In this study, 5 fluoride varnish products distributed in Korea were selected. V-varnishâ„¢...
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A compact-sized surface EMG sensor for myoelectric hand prosthesis

Prakash A, Sharma S, Sharma N

Myoelectric prosthesis requires a sensor that can reliably capture surface electromyography (sEMG) signal from amputees for its controlled operation. The main problems with the presently available EMG devices are their...
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