• Title/Summary/Keyword: 3D-FLAIR

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Recurrent Painful Ophthalmoplegic Neuropathy: a Case Report

  • Park, Jae Hwi;Lee, Ho Kyu;Koh, Myeong Ju;Oh, Jung Hwan;Park, Sung Joo
    • Investigative Magnetic Resonance Imaging
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    • v.23 no.2
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    • pp.172-174
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    • 2019
  • Upon review, it is noted that recurrent painful ophthalmoplegic neuropathy (RPON) is a rare neurological syndrome characterized by recurrent unilateral headaches and painful ophthalmoplegia of the ipsilateral oculomotor nerve. As seen on brain MRI, thickening and enhancement of the oculomotor cranial nerve can be observed in these cases. We experienced a case of RPON in an adult patient who showed thickening and enhancement of the oculomotor nerve on gadolinium-enhanced 3D-FLAIR image. The authors report a case of RPON with a review of the literature.

Expression of Cartoon Rendering Method in Image Contents (영상 콘텐츠에서 카툰 렌더링기법의 활용)

  • Kim, Jong-Seo;Kwak, Hoon-Sung
    • The Journal of the Korea Contents Association
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    • v.7 no.8
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    • pp.142-151
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    • 2007
  • The rapid development of 3D computer graphics makes traditional cell-animations expressed by several digital techniques and makes traditional cell-animations expand their own area through several continuous tries. There are two types in rendering method. The one is Photorealistic rendering to realize accurate images like photos and the other is Non-photorealistic rendering to realize human's flair and artistry. This paper examines applications of cartoon rendering techniques among several Non-photorealistic rendering techniques. This paper analyzes production cases and examines features of cartoon rendering techniques in the latest movies, games and advertisements of image contents. And this paper will be able to help making more sensual, familiar and in-depth products, as understanding applications, merits and demerits of the latest cartoon rendering techniques through these investigations.

Breeding of Spray Rose Cultivar, 'Cherry Tea' with Light Orange Color (오렌지색 절화용 스프레이 장미 '체리티' 육성)

  • Kim, Won-Hee;Kim, Seung-Tae;Lee, Eun-Kyung;Park, Pil-Man;Huh, Kun-Yang;Lee, Kwang Seek
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.528-531
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    • 2011
  • A new spray rose cultivar 'Cherry Tea' was bred from a cross between pink spray cultivar 'Pinocchio' and yellow spray cultivar 'Flair' at the National Institute of Horticultural Research Institute. The cross was made in 2003 and 'Cherry Tea' was finally selected in 2008 after evaluating characteristics for three years from 2006 to 2008. 'Cherry Tea', a light orange spray cultivar grows vigorously and has good vase life. The major characteristics of this cultivar are $137stems/m^2/year$ in yield, 68.8 cm in length of cut flower, 5.5 cm in flower diameter, 34.0 in petal number, and 12.4 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumer's preference of this cultivar is relatively higher than that of control cultivar, 'Little Marble'.

Wallerian Degeneration of Insufficiently Affected White Matters in Old Infarction: Tract of Interest Analysis of Diffusion Tensor Imaging

  • Choi, Chi-Hoon;Lee, Jong-Min;Koo, Bang-Bon;Park, Jun-Sung;Kwon, Jun-Soo;Kim, Sun-I.
    • Journal of Biomedical Engineering Research
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    • v.28 no.3
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    • pp.317-324
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    • 2007
  • The application of diffusion tensor imaging (DTI) and fiber tractography to Wallerian degeneration (WD) is important because this technique is a very potent tools for quantitatively evaluating fiber tracts in vivo brain. We analyzed a case and control using tracts of interest (TOI) analysis to quantify WD. We scanned a case of old infarction and an age-matched healthy volunteer. T1 magnetization prepared rapid acquisition gradient echo (MPRAGE), fluid attenuated inversion recovery (FLAIR) and 12-direction diffusion tensor imaging (DTI) were obtained and analyzed using TOI analysis. The value of mean diffusity ($D_{av}$) and fracional anisotrophy (FA) were analyzed statistically by MWU test. A p-value of less than 0.05 was considered to indicate statistical significance. A comparison of the global fiber diffusion characteristics shows WD of both the corpus callosum and the ipsilateral superior longitudinal fasciculus. The corpus callosum in particular showed trans-hemispherical degeneration. Local fiber characteristics along the geodesic paths show WD in the corpus callosum, ipsilateral superior longitudinal fasciculus, ipsilateral corticospinal tract, and ipsilateral corticothalamic tract. We have demonstrated changes in $D_{av}$ and FA values and a clear correspondence with the WD in various tracts. TOI analysis successfully revealed radial WD in white matter tracts from a region of encephalomalacia and primary gliosis, although they were only slightly affected.

Signal Change of Iodinated Contrast Agents in MR Imaging (요오드화 조영제가 MR영상에 미치는 신호 변화)

  • Jeong, HK;Kim, Seongho;Kang, Chunghwan;Lee, Suho;Yi, Yun;Kim, Mingi;Kim, Hochul
    • Journal of the Institute of Electronics and Information Engineers
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    • v.53 no.12
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    • pp.131-138
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    • 2016
  • In this study, we tried to analyze the influence of ICM(Iodinated Contrast Media) in MR imaging compare to GBCA(Gadolinium Based Contrast Agent), and as this result we discussed whether resonable or not the protocol which is MRI scan after enhanced CT scan without proper time interval in clinical field. For this research, we assembled two phantoms. which one was iodine and another one was gadolinium. We did test two phantoms in conventional MRI scan which is T1, T2, T2 FLAIR and 3D angio. After that, quantitative analysis was progressed. The results of study were as follow : SSI(Saline's Signal Intensity) was shown as each sequences 175, 1231, 333, 37 [a.u] at iodine. and 1297, 123, 757, 232 [a.u] was recorded at gadolinium. BDEPS(the Biggest Difference of EPS) was shown as each sequences 1297, 123, 757, 232 [a.u] at iodine and 793, 6, 1495, 365 [a.u] was recorded at gadolinium. At this time, EPS(Enhancement Percentage to Saline) was shown 641.1, -90.0, 127.3, 527% at iodine and 685.1, 99.4, 365.7, 1077.4% was recorded at gadolinium. BP(BDEPS's point) was shown 900, 900, 477, 900 mmol at iodine and 4, 0.2, 0.2, 40 mmol was recorded at gadolinium. CPSS(Change Point of SI to SSI) was shown 63, 423, 63, 29 mmol at iodine and each [50, 30], [4, 0.2], [4, 1], 0.2 mmol was recorded at gadolinium. According to this research, we could not only discover the fact that was iodine could effect on MR signal, but also the pattern is different as various sequences compare to gadolinium. Therefore, we expect useful diagnostic MR image in clinical field with this quantitative data for deciding protocol regarding MRI and CT scan order.