• Title/Summary/Keyword: ADMIRE

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Effects of Advanced Modeled Iterative Reconstruction on Coronary Artery Calcium (CAC) Scores (ADMIRE가 관상동맥 칼슘(CAC) 점수에 미치는 영향)

  • Lee, Sang-Heon;Lee, Hyo-Young
    • Journal of the Korean Society of Radiology
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    • v.15 no.5
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    • pp.603-612
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    • 2021
  • The effect of Advanced Modeled Iterative Reconstruction (ADMIRE) on the coronary artery calcium (CAC) score of computed tomography was evaluated. Coronary artery calcium images (348 calcium, 6 groups, total of 2088 calcium) were acquired by 128-slice dual-source CT of 89 patients.Volume score and Agatston score were measured from images reconstructed with filtered back projection (FBP) and ADMIRE (1-5). The difference between FBP and ADMIRE Strength (1-5) was confirmed through the Kruskal-Wallis test, and the post-hoc analysis was performed using the Mann-Whitney U test based on FBP. Both volume score and Agatston score showed statistically significant differences between FBP and ADMIRE (1-5) (P=0.015, P=0.0.38). As a result of post hoc analysis, the volume score decreased to 9.5% in ADMIRE 4 (Z=-2.359, P=0.018) and 13.2% in ADMIRE 5 (Z=-3.113, P=0.002) based on FBP. Agatston score decreased to 10.4% in ADMIRE 4 (Z=-2.051, P=0.040) and 14.0% in ADMIRE 5 (Z=-2.718, P=0.007) based on FBP. High ADMIRE strength affected the volume score and Agatston score due to the decrease in calcium area. In addition, the change in the Density factor due to the decrease in Maximum HU may affect the calculation of the Agatston score.

Evaluation of Noise Level and Blind Quality in CT Images using Advanced Modeled Iterative Reconstruction (ADMIRE) (고급 모델 반복 재구성법 (ADMIRE)을 사용한 CT 영상에서의 노이즈 레벨 및 블라인드 화질 평가)

  • Shim, Jina;Kang, Seong-Hyeon;Lee, Youngjin
    • Journal of the Korean Society of Radiology
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    • v.16 no.3
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    • pp.203-209
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    • 2022
  • One of the typical methods for lowering radiation dose while maintaining image quality of computed tomography (CT) is the use of model-based iterative reconstruction (MBIR). This study is to evaluate the image quality by adjusting the strength of the advanced modeled iterative reconstruction (ADMIRE), which is well known as a representative model of MBIR. The study was conducted using phantom, and CT images were obtained while adjusting the strength of ADMIRE in units of 1 to 5. Quantitative evaluation includes noise levels using coefficient of variation (COV) and contrast to noise ratio (CNR), as well as natural image quality evaluation (NIQE) and blind/referenceless image spatial quality evaluator (BRISQUE). As a result, in both noise level and blind quality evaluation results, the higher the strength of ADMIRE, the better the results were derived. In particular, it was confirmed that COV and CNR were improved 1.89 and 1.75 times at ADMIRE 5 compared to ADMIRE 1, respectively, and NIQE and BRISQUE were proved to be improved 1.35 and 1.22 times at ADMIRE 5 compared to ADMIRE 1, respectively. In conclusion, this study was proved that the reconstruction strength of ADMIRE had a great influence on the noise level and overall image quality evaluation of CT images.

The Effect of Advanced Modeling Iterative Reconstruction(ADMIRE) on the Quality of CT Images : Non-contrast CT in Chest (고급 모델링 반복 재구성법(ADMIRE)이 CT 영상의 화질에 미 치는 영향: 흉부 비조영 CT에서)

  • Lee, SangHeon;Lee, HyoYeong
    • Journal of the Korean Society of Radiology
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    • v.13 no.2
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    • pp.159-168
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    • 2019
  • We examined the effect of Siemens ADMIRE (Advanced Modeled Iterative Reconstruction) on image quality by measuring changes in HU, noise, and SNR of background air, fat, muscle, and background signals on a chest CT scan. Experimental results show that as the ADMIRE Strength increases, the noise decreases and the signal increases, consequently the signal-to-noise ratio increases. ADMIRE can reduce noise by 28 ~ 61% compared to FBP, which is a conventional image reconstruction algorithm, and improves SNR by 16 ~ 100%.

Effects of ADMIRE Algorithms on Fat Measurements Using Computed Tomography (CT) (CT를 이용한 지방측정에 ADMIRE 알고리즘이 미치는 영향)

  • Lee, Chang Wook;Lee, Sang Heon;Im, In Chul;Lee, Hyo Yeong
    • Journal of the Korean Society of Radiology
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    • v.13 no.3
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    • pp.465-472
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    • 2019
  • To investigate the effects of iterative reconstruction algorithms on fat measurements using computed tomography (CT), we comparatively and quantitatively analyzed the ratios of visceral, subcutaneous, and visceral-subcutaneous fat areas as well as the variations of HU and noise of visceral and subcutaneous fat using ADMIRE strength and attempted to identify any difference between them. Experimental results showed that no statistically significant difference existed among the visceral, subcutaneous, and visceral-subcutaneous fat area ratios HU of visceral fat area and HU of subcutaneous fat area when applying ADMIRE as compared with existing conventional filtered back projection algorithms. However, as the ADMIRE strength increases, the noise of visceral and subcutaneous fat decreases by up to 12.1% and 19.2%, respectively. In conclusion, iterative reconstruction algorithms have no effect on the visceral, subcutaneous, and visceral-subcutaneous fat area ratios, which are indicators of fat measurement using CT.

Evaluation of Image Quality and Radiation Dose for Filtered Back-Projection and Iterative Reconstruction Algorithm in Abdominal Computed Tomography Protocol (복부 CT 프로토콜에서 필터 보정 역투영법과 반복적 재구성기법에 따른 화질 및 선량에 관한 연구)

  • Oh, Jeong-Min;Seo, Hyeon-Ji;Kim, Yung-Kyoon;Han, Dong-Kyoon
    • Journal of the Korean Society of Radiology
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    • v.15 no.7
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    • pp.1065-1072
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    • 2021
  • In Computed Tomography, abdominal examination showed the highest proportion of use, and effort of reducing the radiation dose is required. Recently introduced Iterative Reconstruction(IR) is repetitive reconstruction technique of Computed Tomography. SIEMENS' IR, ADMIRE and GE's IR, ASIR-V, were used in this examination. Noise, % Contrast, and High contrast resolution were measured by using ACR phantom for image quality evaluation. In addition, CTDIvol and DLP displayed in the CT device were used for dose evaluation. When FBP and IR were compared, stage 2 to stage 5 of ADMIRE and 10, 30, 50, 70, and 90% of ASIR-V were applied, noise could be reduced from a minimum of 0.46 to a maximum of 2.38 in ADMIRE compared to FBP, and noise from a minimum of 0.51 to a maximum of 2.5 in ASIR-V compared to FBP. Also, % Contrast and High contrast resolution of FBP and IR were no statistical difference. When IR was used for abdominal CT examination, the radiation dose of ADMIRE is reduced by 25.39% compared to the radiation dose of FBP. Also, the radiation dose of ASIR-V is reduced by 16.61% compared to the radiation dose of FBP. In conclusion, it is believed that if IR is applied during abdominal CT examination, the radiation dose can be reduced without deteriorating the image quality.

Interpreting English Conjoined Wh-questions

  • Cho, Sungeun
    • Korean Journal of English Language and Linguistics
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    • v.2 no.2
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    • pp.279-285
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    • 2002
  • English allows conjoined wh-questions to have two different readings. The English sentence Which person does John like and Mary admire\ulcorner involves ATB movement and is understood either as single questions requiring one set of individuals that are liked by John and admired by Mary (which person x, likes (j,x) & admires (m,x)) or as coordinated wh-questions, allowing distinct individuals that John likes and Mary admires (which person x, likes (j,x) & which person y, admires (m,y)). I argue this ambiguity is explained by the two key assumptions about wh-movement in Chomsky (1995): (1) Movement is copying. (2) wh-phrases consist of a wh-element and a nominal restrictor. This yields two possible LFs for English depending on whether [Wh+nominal] or wh alone is interpreted as a variable. It is therefore natural for me to propose that number of questions understood corresponds to the number of nominal segments at LF.

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Interaction art using Video Synthesis Technology

  • Kim, Sung-Soo;Eom, Hyun-Young;Lim, Chan
    • International Journal of Advanced Culture Technology
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    • v.7 no.2
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    • pp.195-200
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    • 2019
  • Media art, which is a combination of media technology and art, is making a lot of progress in combination with AI, IoT and VR. This paper aims to meet people's needs by creating a video that simulates the dance moves of an object that users admire by using media art that features interactive interactions between users and works. The project proposed a universal image synthesis system that minimizes equipment constraints by utilizing a deep running-based Skeleton estimation system and one of the deep-running neural network structures, rather than a Kinect-based Skeleton image. The results of the experiment showed that the images implemented through the deep learning system were successful in generating the same results as the user did when they actually danced through inference and synthesis of motion that they did not actually behave.

Background of creation and composing method in (<황강구곡가>의 창작 배경 및 구성 방식)

  • Chang Chung-Soo
    • Sijohaknonchong
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    • v.21
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    • pp.241-269
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    • 2004
  • The purpose of this dissertation is to examine background of creation, composing method, and character of contents. was created by Kwon, Seop to reconfirm moral range of the Kiho-scholarship school and admire Kwon. Sang-ha (Kwon. Seop's uncle) through transmission of Kugok-ga when a custom handed down by Kwon, Sang-ha waned. This work, therefore, was composed of recollecting method describing each place of superb view relating to trace of life of Kwon, Sang-ha. In this work, the moralistic life of Kwon, Sang-ha don't appear directly. Hwangkangkugok, a fairyland where Kwon, Sang-ha lived in retirement. proves the moralistic life of Kwon, Sang-ha indirectly by describing his life as hermitian taste. Through this composing method and recognizant attitude, We know that was created for K won, Sang-ha, but it reveals Kwon, Seop' thought in life and it can be placed on prolongation with his work world.

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A Study of Vintage Style on the Domestic Fashion - Focused on the Since $2001's{\sim}2006's$ SS - (국내 패션 트렌드에 반영된 빈티지(Vintage)에 관한 연구 - 2001년 $F/W{\sim}2006$년 S/S까지 -)

  • Im, Ji-Wan;Park, Meeg-Nee
    • The Research Journal of the Costume Culture
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    • v.15 no.3 s.68
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    • pp.405-419
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    • 2007
  • It is no more make consumers feel the freshness about a simple and functioned style reminding to the cyber-future style made by shining materials. Rather than that stereo-type of the future, people at present tend to feel more interested in something familiar than something new. Even though the amazing product made by human for better life, people become feel afraid that value be getting disappear, and it is natural that people should put more value to the nature, admire it, people try to find the new beauty in something worn being able to be felt the passed time. The vintage has turned up in the fashion area out of the mode of the antipathy from standardization, overconsumption, and also demand of a special thing different from mass product. The vintage is not the past-inclined trend but the new trend that people try to seek in the future to feel both comfort and newness. This study analyzed the vintage fashion style getting more important and also how the vintage fashion shows focusing in the domestic fashion market. The results as follow.: There are two meaning in vintage fashion, one of two is the recycled fashion style that current fashion made with used clothing, or reforming with new and old, Second, there is the new style using the past image, so called as the revival fashion. The totally current trend can be made in something new mixed with material or silhouette from past thing. The vintage fashion as recycled and reformed fashion will be more demanded from consumers who want to be comfort and still try to pursuit something new.

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A Case Study on the Cinema Therapy Class - Focusing on the movie Life of Pi(2013)- (영화치유 수업사례 연구 - 영화 <라이프 오브 파이>(2013)를 중심으로-)

  • Hae Rang Park
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.4
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    • pp.105-112
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    • 2023
  • This study is an example of a Cinema Therapy class through the movie Life of Pi (2013). Cinema Therapy proceeds through the process of identification, empathy, projection, and observational learning through the cinema. Through research, students objectively examine the situation of the characters in the movie, identify themselves, and empathize with them. Students evaluate the situation of the character in the movie, and indirectly experience the hardships facing the character in the movie through the answer to "What would you do if I were the main character?" and think about what they would do. I admire the outstanding points of the main character and reflect on my life. Through this process, students examine the situation of their emotions and problems and specifically suggest ways to solve them. In the end, students' emotions can be fully healed through the movie. Healing through the cinema should start with the selection of the cinema in consideration of the healer's client. It is also necessary to sufficiently present a specific method of applying this. It is expected that the cinema healing plan will be able to develop further by presenting various healing methods in the future.