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Low-Dose Abdominal CT Using a Deep Learning-Based Denoising Algorithm: A Comparison with CT Reconstructed with Filtered Back Projection or Iterative Reconstruction Algorithm

Shin YJ, Chang W, Ye JC, Kang E, Oh DY, Lee YJ, Park JH, Kim YH

OBJECTIVE: To compare the image quality of low-dose (LD) computed tomography (CT) obtained using a deep learning-based denoising algorithm (DLA) with LD CT images reconstructed with a filtered back projection...
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Noise Level by Type in Adult Intensive Care Units of a Tertiary Teaching Hospital in Korea

Yun SH, Choi HY, Lee SH, Peck EH, Yoo YS

PURPOSE: This study aimed to investigate the actual noise conditions in adult Intensive Care Units (ICUs) according to type, time, day of the week, and area. METHODS: This study was conducted...
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Study for Correlation between Objective and Subjective Voice Parameters in Patients with Dysphonia

Park JW, Kim B, Oh JH, Kang TK, Kim DY, Woo JH

BACKGROUND AND OBJECTIVES: Voice evaluation is classified into subjective tests such as auditory perception and self-measurement, and objective tests such as acoustic and aerodynamic analysis. When evaluating dysphonia, subjective and...
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The Efficacy of Percutaneous Steroid Injection via Cricothyroid Membrane for Reinke's Edema

Nam W, Kim SW, Jin SM, Lee SH

BACKGROUND AND OBJECTIVES: Reinke's edema is a benign vocal fold disease caused by an edematous laryngeal superficial layer of lamina propria. The first line treatment is cessation of smoking and...
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Effect of ME Collimator Characteristic, Energy Window Width, and Reconstruction Algorithm Selection on Imaging Performance of Yttrium-90: Simulation Study

Taherparvar P, Shahmari N

PURPOSE: The treatment efficiency of ⁹⁰Y and providing reliable estimates of activity are evaluated by SPECT imaging of bremsstrahlung radiation released during beta therapy. In this technique, the resulting spectrum...
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Acceptance Test and Clinical Commissioning of CT Simulator

An HJ, Son J, Jin H, Sung J, Chun M

This study examined the clinical use of two newly installed computed tomography (CT) simulators in the Department of Radiation Oncology. The accreditation procedure was performed by the Korean Institute for...
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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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Early Injection Laryngoplasty With a Long-Lasting Material in Patients With Potentially Recoverable Unilateral Vocal Fold Paralysis

Choi N, Jin H, Kim HJ, Son YI

OBJECTIVES: Injection laryngoplasty (IL) is one of the major options for treatment of unilateral vocal fold paralysis (UVFP). Early IL in patients with abrupt-onset UVFP can reduce hoarseness and aspiration-related...
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Frequency and intensity of gastrointestinal symptoms in exercisers individuals at rest and during physical exercise: an internet-based survey

de Lira CA, Viana RB, Mesquista , Santos DD, Campos MH, Andrade MS, Vancini RL

BACKGROUND/AIMS: Despite the evidence of a modest to high prevalence of gastrointestinal (GI) symptoms in recreational runners and endurance athletes, the frequency and intensity of GI symptoms in exercisers, but...
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Real-Time Computed Tomography Volume Visualization with Ambient Occlusion of Hand-Drawn Transfer Function Using Local Vicinity Statistic

Kim J, Ha T, Kye H

OBJECTIVES: In this paper, we present an efficient method to visualize computed tomography (CT) datasets using ambient occlusion, which is a global illumination technique that adds depth cues to the...
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Speech Perception and Gap Detection Performance of Single-Sided Deafness under Noisy Conditions

Kwak C, Kim S, Lee J, Seo Y, Kong T, Han W

BACKGROUND AND OBJECTIVES: Many studies have reported no benefit of sound localization, but improved speech understanding in noise after treating patients with single-sided deafness (SSD). Furthermore, their performances provided a...
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Perception of Tamil Mono-Syllabic and Bi-Syllabic Words in Multi-Talker Speech Babble by Young Adults with Normal Hearing

Gnanasekar S, Vaidyanath R

BACKGROUND AND OBJECTIVES: This study compared the perception of mono-syllabic and bisyllabic words in Tamil by young normal hearing adults in the presence of multi-talker speech babble at two signal-to-noise...
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Application of Vendor-Neutral Iterative Reconstruction Technique to Pediatric Abdominal Computed Tomography

Lim WH, Choi YH, Park JE, Cho YJ, Lee S, Cheon JE, Kim WS, Kim IO, Kim JH

OBJECTIVE: To compare image qualities between vendor-neutral and vendor-specific hybrid iterative reconstruction (IR) techniques for abdominopelvic computed tomography (CT) in young patients. MATERIALS AND METHODS: In phantom study, we used an...
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Time–frequency localization using three-tap biorthogonal wavelet filter bank for electrocardiogram compressions

Kumar A, Komaragiri R, Kumar M

A joint time–frequency localized three-band biorthogonal wavelet filter bank to compress Electrocardiogram signals is proposed in this work. Further, the use of adaptive thresholding and modified run-length encoding resulted in...
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Memantine Attenuates Salicylate-induced Tinnitus Possibly by Reducing NR2B Expression in Auditory Cortex of Rat

Jang CH, Lee S, Park IY, Song A, Moon C, Cho GW

Memantine, a noncompetitive antagonist of the N-methyl-d-aspartate (NMDA) receptor, suppresses the release of excessive levels of glutamate that may induce neuronal excitation. Here we investigated the effects of memantine on...
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Working Conditions and Health Status of Delivery Workers

Lee B

PURPOSE: The purpose of this study was to compare working condition and health status between parcel delivery workers (PDW) and food delivery workers (FDW) and to examine the factors influencing...
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Perceptual and Acoustic Outcomes of Early-Stage Glottic Cancer After Laser Surgery or Radiotherapy: A Meta-Analysis

Lee SH, Hong KH, Kim JS, Hong YT

Laser surgery (LS) or radiotherapy (RT) is normally recommended in early glottic cancer. The objective of this study was to perform a comprehensive meta-analysis of acoustic and perceptual outcomes to...
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Accuracy of Model-Based Iterative Reconstruction for CT Volumetry of Part-Solid Nodules and Solid Nodules in Comparison with Filtered Back Projection and Hybrid Iterative Reconstruction at Various Dose Settings: An Anthropomorphic Chest Phantom Study

Kim SK, Kim C, Lee KY, Cha J, Lim HJ, Kang EY, Oh YW

OBJECTIVE: To investigate the accuracy of model-based iterative reconstruction (MIR) for volume measurement of part-solid nodules (PSNs) and solid nodules (SNs) in comparison with filtered back projection (FBP) or hybrid...
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Image Quality and Radiation Dose in CT Venography Using Model-Based Iterative Reconstruction at 80 kVp versus Adaptive Statistical Iterative Reconstruction-V at 70 kVp

Park C, Choo KS, Kim JH, Nam KJ, Lee JW, Kim JY

OBJECTIVE: To compare the objective and subjective image quality indicators and radiation doses of computed tomography (CT) venography performed using model-based iterative reconstruction (MBIR) at 80 kVp and adaptive statistical...
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Volumetric Severity Assessment of Ebstein Anomaly Using Three-Dimensional Cardiac CT: A Feasibility Study

Goo HW

OBJECTIVE: The purpose of this study was to demonstrate the feasibility of using cardiac CT to perform volumetric severity assessment of the Ebstein anomaly. MATERIALS AND METHODS: Six children with Ebstein...
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