Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Yeonok Park"'
Autor:
Changhwan Kim, Hojae Kim, Dongmin Jung, Heesoo Kim, Yeonok Park, Min Cheol Han, Chae-Seon Hong, Hojin Kim, Ho Lee, Jinsil Sung, Dong Wook Kim, Jin Sung Kim
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract We aimed to investigate the deliverability of dynamic conformal arc therapy (DCAT) by gantry wobble owing to the intrinsic inter-segment break of the Elekta linear accelerator (LINAC) and its adverse influence on the dose to the patient. The
Externí odkaz:
https://doaj.org/article/8011d239f3714236bfba86f71bf16770
Publikováno v:
Med Phys
Purpose Scattered radiation is a major cause of image quality degradation in flat panel detector-based cone beam CT (CBCT). While recently introduced 2D antiscatter grids reject the majority of scatter fluence, the small percentage of scatter fluence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be2dffb74767068e85ed77c0c2bf750d
https://europepmc.org/articles/PMC7965329/
https://europepmc.org/articles/PMC7965329/
Publikováno v:
Med Phys
PURPOSE We have been investigating two-dimensional (2D) antiscatter grids (2D ASGs) to reduce scatter fluence and improve image quality in cone beam computed tomography (CBCT). In this work, two different aspects of 2D ASGs, their scatter rejection a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6df639b448ea4238b23d88aaf2cadae4
https://pubmed.ncbi.nlm.nih.gov/33554377
https://pubmed.ncbi.nlm.nih.gov/33554377
Publikováno v:
Proc SPIE Int Soc Opt Eng
While two-dimensional antiscatter grids (2D grid) reduce scatter intensity substantially in Cone Beam Computed Tomography (CBCT), a small fraction of scattered radiation is transmitted through the 2D grid to the detector. Residual scatter limits the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::634b7c7f74b11d1b9b3534f50d67072f
https://doi.org/10.1117/12.2549763
https://doi.org/10.1117/12.2549763
Autor:
Guna Kim, Soyoung Park, Dongyeon Lee, Hyunwoo Lim, Kyuseok Kim, Yeonok Park, Chulkyu Park, Taeho Woo, Hunwoo Lee, Uikyu Je, Hyosung Cho
Publikováno v:
Journal of Medical and Biological Engineering. 38:129-137
In recent computed tomography (CT) reconstruction, iterative methods have been often used owing to the potential to provide three-dimensional (3D) images of superior reconstruction quality to common filtered-backprojection (FBP)-based methods. Howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdcfb7774a6417230138d0bd6ea73e97
https://doi.org/10.1007/s40846-017-0288-3
https://doi.org/10.1007/s40846-017-0288-3
Autor:
Hyosung Cho, Soyoung Park, Chulkyu Park, Guna Kim, Dongyeon Lee, Hyunwoo Lim, Taeho Woo, Yeonok Park, Kyuseok Kim, Uikyu Je, Hunwoo Lee
Publikováno v:
Research in Nondestructive Evaluation. 29:109-121
Digital tomosynthesis (DTS) has been widely used in both industrial nondestructive testing and medical x-ray imaging as a popular multiplanar imaging modality. However, although it provides some of the tomographic benefits of computed tomography (CT)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21198901e77da952d7fbef038e892b3e
https://doi.org/10.1080/09349847.2016.1274458
https://doi.org/10.1080/09349847.2016.1274458
Autor:
Kyuseok Kim, Chulkyu Park, Hunwoo Lee, Hyosung Cho, Dongyeon Lee, Guna Kim, Hyunwoo Lim, Yeonok Park, Uikyu Je, Soyoung Park, Taeho Woo
Publikováno v:
NDT & E International. 84:11-19
We have established a high-voltage computed tomography (CT) system with a 1–3 MV LINAC x-ray generator for industrial nondestructive testing. However, reconstructed CT images are typically blurred, limiting its image performance, mainly due to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bdd8494c5da470d166893b6e7ad5cb1
https://doi.org/10.1016/j.ndteint.2016.07.003
https://doi.org/10.1016/j.ndteint.2016.07.003
Autor:
Sungil Choi, Soyoung Park, Heemoon Cho, Yeonok Park, Taeho Woo, Hyunwoo Lim, Kyuseok Kim, Hyosung Cho, Uikyu Je, Chulkyu Park
Publikováno v:
Radiation Physics and Chemistry. 127:147-154
In this work, we investigated a compressed-sensing (CS)-based deblurring scheme incorporated with the total-variation (TV) regularization penalty for image deblurring of high accuracy and adopted it into the image reconstruction in conventional digit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95b0d6da66cf625a5dc78489ef2ddd4d
https://doi.org/10.1016/j.radphyschem.2016.06.025
https://doi.org/10.1016/j.radphyschem.2016.06.025
Autor:
Soyoung Park, Guna Kim, Kyuseok Kim, Hyunwoo Lim, Taeho Woo, Chulkyu Park, Hunwoo Lee, Uikyu Je, Hyosung Cho, Dongyeon Lee, Yeonok Park
Publikováno v:
Instrumentation Science & Technology. 45:248-258
An industrial x-ray inspection system has recently established by our group to examine large and dense objects available in industry. It consists of an industrial x-ray generator having a tube voltage of 450 kV and a focal spot size of 1 mm, a flat-p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8bda3e2b2c82a2308b8093e890d2d60
https://doi.org/10.1080/10739149.2016.1236269
https://doi.org/10.1080/10739149.2016.1236269
Autor:
Soyoung Park, Guna Kim, Kyuseok Kim, Yeonok Park, Jin-Soo Kim, Hyosung Cho, Jin Won Kim, Taeho Woo, Nagkun Chung, Jinguk Kim, Uikyu Je, Chulkyu Park, Hyunwoo Lim
Publikováno v:
Measurement. 91:634-640
We have recently developed very precise carbon-interspaced antiscatter grids having a wide range of grid strip densities ( i.e. , 85–234 lines/in.) by adopting the sawing process, depending on the demands of specific imaging modalities. However, be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18954968708d7dab8279a24ba17e5be3
https://doi.org/10.1016/j.measurement.2016.05.082
https://doi.org/10.1016/j.measurement.2016.05.082