- Perceived Dark Rim Artifact in First-Pass Myocardial Perfusion Magnetic Resonance Imaging Due to Visual Illusion
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Shin T, Nayak KS
- KMID: 2471812
- Korean J Radiol.
- 2020 Apr;21(4):462-470.
- doi: 10.3348/kjr.2019.0449
OBJECTIVE: To demonstrate that human visual illusion can contribute to sub-endocardial dark rim artifact in contrast-enhanced myocardial perfusion magnetic resonance images. MATERIALS AND METHODS: Numerical phantoms were generated to simulate the... -
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- Does the metal artifact reduction algorithm activation mode influence the magnitude of artifacts in CBCT images?
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Fontenele , Nascimento EHL, Santaella , Freitas DQ
- KMID: 2471842
- Imaging Sci Dent.
- 2020 Mar;50(1):23-30.
- doi: 10.5624/isd.2020.50.1.23
PURPOSE: This study was conducted to assess the effectiveness of a metal artifact reduction (MAR) algorithm activated at different times during cone-beam computed tomography (CBCT) acquisition on the magnitude of... -
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- Magnitude of beam-hardening artifacts produced by gutta-percha and metal posts on cone-beam computed tomography with varying tube current
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Gaêta-Araujo H, Nascimento EHL, Fontenele , Mancini AX, Freitas DQ, Oliveira-Santos C
- KMID: 2471839
- Imaging Sci Dent.
- 2020 Mar;50(1):1-7.
- doi: 10.5624/isd.2020.50.1.1
PURPOSE: This study was performed to evaluate the magnitude of artifacts produced by gutta-percha and metal posts on cone-beam computed tomography (CBCT) scans obtained with different tube currents and with... -
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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
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Shin YJ, Chang W, Ye JC, Kang E, Oh DY, Lee YJ, Park JH, Kim YH
- KMID: 2470759
- Korean J Radiol.
- 2020 Mar;21(3):356-364.
- doi: 10.3348/kjr.2019.0413
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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- Gastromalacia (Postmortem Gastric Perforation): Two Cases Reports
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Kim DJ, Lee S
- KMID: 2471745
- Korean J Leg Med.
- 2020 Feb;44(1):45-47.
- doi: 10.7580/kjlm.2020.44.1.45
Gastromalacia refers to the postmortem acute autolytic erosion of the gastric wall. It should be distinguished from gastric perforations caused by antemortem injuries or other pathologic processes, such as ulcer... -
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- Ultrasonographic Demonstration of the Tissue Microvasculature in Children: Microvascular Ultrasonography Versus Conventional Color Doppler Ultrasonography
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Yoo J, Je BK, Choo JY
- KMID: 2471632
- Korean J Radiol.
- 2020 Feb;21(2):146-158.
- doi: 10.3348/kjr.2019.0500
Microvascular ultrasonographic imaging is the most recent and unique Doppler ultrasound technique. It uses an advanced clutter filter that can remove clutter artifacts and preserve the low-velocity microvascular flow signal.... -
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- Precision Medicine and Cardiovascular Health: Insights from Mendelian Randomization Analyses
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Spiller W, Jung KJ, Lee JY, Jee SH
- KMID: 2468035
- Korean Circ J.
- 2020 Feb;50(2):91-111.
- doi: 10.4070/kcj.2019.0293
Cardiovascular disease (CVD) is considered a primary driver of global mortality and is estimated to be responsible for approximately 17.9 million deaths annually. Consequently, a substantial body of research related... -
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- Metallic Artifacts on MR Imaging and Methods for Their Reduction
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Choo HJ, Lee SJ, Lee YH
- KMID: 2469181
- J Korean Soc Radiol.
- 2020 Jan;81(1):41-57.
- doi: 10.3348/jksr.2020.81.1.41
Metallic artifacts on MR imaging are typically induced by differences in magnetic susceptibility between the metallic implant and surrounding tissue. Conventional techniques for metal artifact reduction require MR machines with... -
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- Feasibility of Simultaneous Multislice Acceleration Technique in Diffusion-Weighted Magnetic Resonance Imaging of the Rectum
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Park JH, Seo N, Lim JS, Hahm J, Kim MJ
- KMID: 2467044
- Korean J Radiol.
- 2020 Jan;21(1):77-87.
- doi: 10.3348/kjr.2019.0406
OBJECTIVE: To assess the feasibility of simultaneous multislice-accelerated diffusion-weighted imaging (SMS-DWI) of the rectum in comparison with conventional DWI (C-DWI) in rectal cancer patients. MATERIALS AND METHODS: This study included 65... -
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- Automated Breast Ultrasound Screening for Dense Breasts
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Kim SH, Kim HH, Moon WK
- KMID: 2467038
- Korean J Radiol.
- 2020 Jan;21(1):15-24.
- doi: 10.3348/kjr.2019.0176
Mammography is the primary screening method for breast cancers. However, the sensitivity of mammographic screening is lower for dense breasts, which are an independent risk factor for breast cancers. Automated... -
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- Clinical Applications of Wide-Detector CT Scanners for Cardiothoracic Imaging: An Update
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Kang EJ
- KMID: 2471672
- Korean J Radiol.
- 2019 Dec;20(12):1583-1596.
- doi: 10.3348/kjr.2019.0327
Technical developments in multidetector computed tomography (CT) have increased the number of detector rows on the z-axis, and 16-cm wide-area-coverage CT scanners have enabled volumetric scanning of the entire heart.... -
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- Pinworm Infection at Salmon Ruins and Aztec Ruins: Relation to Pueblo III Regional Violence
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Reinhard K, Camacho M
- KMID: 2469995
- Korean J Parasitol.
- 2019 Dec;57(6):627-633.
- doi: 10.3347/kjp.2019.57.6.627
The study of coprolites has been a theme of archaeology in the American Southwest. A feature of archaeoparasitology on the Colorado Plateau is the ubiquity of pinworm infection. As a... -
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- Acceptance Test and Clinical Commissioning of CT Simulator
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An HJ, Son J, Jin H, Sung J, Chun M
- KMID: 2468178
- Prog Med Phys.
- 2019 Dec;30(4):160-166.
- doi: 10.14316/pmp.2019.30.4.160
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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- Parameters Affecting India Ink Artifacts on Opposed-Phase MR Images
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Kim BR, Ha DH
- KMID: 2468051
- Investig Magn Reson Imaging.
- 2019 Dec;23(4):341-350.
- doi: 10.13104/imri.2019.23.4.341
PURPOSE: To determine the MR parameters affecting India ink artifacts on opposed-phase chemical shift magnetic resonance (MR) imaging. MATERIALS AND METHODS: The use of a female Sprague-Dawley rat was approved by... -
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- Generating Motion- and Distortion-Free Local Field Map Using 3D Ultrashort TE MRI: Comparison with Tâ‚‚* Mapping
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Jeong K, Thapa B, Han BS, Kim D, Jeong EK
- KMID: 2468050
- Investig Magn Reson Imaging.
- 2019 Dec;23(4):328-340.
- doi: 10.13104/imri.2019.23.4.328
PURPOSE: To generate phase images with free of motion-induced artifact and susceptibility-induced distortion using 3D radial ultrashort TE (UTE) MRI. MATERIALS AND METHODS: The field map was theoretically derived by solving... -
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- Follow-up of Metal-on-Metal Hip Replacements at a Large District Hospital and the Implementation of Medicines and Healthcare Products Regulatory Agency Guidelines: A Review of 297 Patients
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Hughes L, Chamberlain K, Robinson H, Sloan A, Choudry Q
- KMID: 2462533
- Clin Orthop Surg.
- 2019 Dec;11(4):403-408.
- doi: 10.4055/cios.2019.11.4.403
BACKGROUND: Medicines and Healthcare products Regulatory Agency (MHRA) guidance for patients with metal-on-metal (MoM) hip replacements was provided in 2012 and updated in 2017 to assist in the early detection... -
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- Follow-Up Decision Support Tool for Public Healthcare: A Design Research Perspective
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Miah SJ, Hasan N, Gammack J
- KMID: 2462230
- Healthc Inform Res.
- 2019 Oct;25(4):313-323.
- doi: 10.4258/hir.2019.25.4.313
OBJECTIVES: Mobile health (m-Health) technologies may provide an appropriate follow-up support service for patient groups with post-treatment conditions. While previous studies have introduced m-Health methods for patient care, a smart... -
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- Intraoperative consultation for ovarian tumors
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Kim I
- KMID: 2460185
- Yeungnam Univ J Med.
- 2019 Sep;36(3):163-182.
- doi: 10.12701/yujm.2019.00227
The primary function of intraoperative frozen consultation is to provide an as accurate and prompt diagnosis as possible during surgery and to guide the surgeon in further management. However, the... -
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- The Role of Double Inversion Recovery Imaging in Acute Ischemic Stroke
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Choi NY, Park S, Lee CM, Ryu CW, Jahng GH
- KMID: 2459875
- Investig Magn Reson Imaging.
- 2019 Sep;23(3):210-219.
- doi: 10.13104/imri.2019.23.3.210
PURPOSE: The purpose of this study was to investigate if double inversion recovery (DIR) imaging can have a role in the evaluation of brain ischemia, compared with diffusion-weighted imaging (DWI)... -
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- Determination and classification of intraoral phosphor storage plate artifacts and errors
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Deniz Y, Kaya S
- KMID: 2458371
- Imaging Sci Dent.
- 2019 Sep;49(3):219-228.
- doi: 10.5624/isd.2019.49.3.219
PURPOSE: The aim of this study was to determine the reasons and solutions for intraoral phosphor storage plate (PSP) image artifacts and errors, and to develop an appropriate classification of... -
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