Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Hyun‐Tai Chung"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Gamma Knife surgery (GKS) for brain metastasis (BM) has been generally advocated for patients with a Karnofsky performance status (KPS) scale of ≥ 70. However, some patients with a poor KPS scale of
Externí odkaz:
https://doaj.org/article/cd67dd4b6de7432eb1cc04a230c32c70
Autor:
Yona Choi, Kook Jin Chun, Jungbae Bahng, Sang Hyoun Choi, Gyu Seok Cho, Tae Hoon Kim, Hye Jeong Yang, Yeong Chan Seo, Hyun-Tai Chung
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 8, Pp 2935-2940 (2023)
A polystyrene phantom was developed following the guidance of the International Atomic Energy Association (IAEA) for gamma knife (GK) quality assurance. Its performance was assessed by measuring the absorbed dose rate to water and dose distributions.
Externí odkaz:
https://doaj.org/article/a841a3a317b444949f43effc80d835fe
Autor:
Tae Hoon Kim, Sangmin Lee, Dong Geon Kim, Jae Young Jeong, Hye Jeong Yang, Thomas Schaarschmidt, Sang Hyoun Choi, Gyu-Seok Cho, Yong Kyun Kim, Hyun-Tai Chung
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 9, Pp 3018-3025 (2021)
The authors developed a volumetric dosimetry detector system using in-house 3D-printable plastic scintillator resins. Three tumor model scintillators (TMSs) were developed using magnetic resonance images of a tumor. The detector system consisted of a
Externí odkaz:
https://doaj.org/article/f131ac37017f4adea4d5fae6461bb3a7
Autor:
Sangmin Lee, Tae Hoon Kim, Jae Young Jeong, Jaebum Son, Dong Geon Kim, Gyu-Seok Cho, Sang Hyoun Choi, Hyun-Tai Chung, Yong Kyun Kim
Publikováno v:
Nuclear Engineering and Technology, Vol 52, Iss 10, Pp 2334-2338 (2020)
In recent years, 3D printing technology has received significant research attention. Additionally, 3D printing technology is being applied to study radiation dosimeters of various materials. In this study, a plastic scintillator for 3D printing was d
Externí odkaz:
https://doaj.org/article/fc7e49489adc496981cd075de2863b75
Autor:
Jae Pil Chung, Young Min Seong, Tae Yeon Kim, Yona Choi, Tae Hoon Kim, Hyun Joon Choi, Chul Hee Min, Hamza Benmakhlouf, Kook Jin Chun, Hyun-Tai Chung
Publikováno v:
Radiation Oncology, Vol 13, Iss 1, Pp 1-9 (2018)
Abstract Background To measure the absorbed dose rate to water and penumbra of a Gamma Knife® (GK) using a polymethyl metacrylate (PMMA) phantom. Methods A multi-purpose PMMA phantom was developed to measure the absorbed dose rate to water and the d
Externí odkaz:
https://doaj.org/article/16bc0e42690c46a5b86dbd50b9a77051
Autor:
Hyun-Tai Chung, Jeong Hun Kim, Jin Wook Kim, Sun Ha Paek, Dong Gyu Kim, Kook Jin Chun, Tae Hoon Kim, Yong Kyun Kim
Publikováno v:
PLoS ONE, Vol 13, Iss 3, p e0193809 (2018)
Image co-registration is used in frameless gamma knife radiosurgery (GKSRS) to assign a stereotactic coordinate system and verify patient setup before irradiation. The accuracy of co-registration with cone beam computed tomography (CBCT) images of a
Externí odkaz:
https://doaj.org/article/d8cbb064a6164156b95add2650bcbc31
Autor:
Joo Whan Kim, Hye Ran Park, Jae Meen Lee, Jin Wook Kim, Hyun-Tai Chung, Dong Gyu Kim, Hee-Won Jung, Sun Ha Paek
Publikováno v:
PLoS ONE, Vol 11, Iss 9, p e0163304 (2016)
PURPOSE:Stereotactic radiosurgery (SRS) is widely used for brain metastases but has been relatively contraindicated for large lesions (>3 cm). In the present study, we analyzed the efficacy and toxicity of hypofractionated Gamma Knife radiosurgery to
Externí odkaz:
https://doaj.org/article/3bea10b19693471da06c01dd2294274b
Autor:
Hye Ran Park, Jae Meen Lee, Jin Wook Kim, Jung-Ho Han, Hyun-Tai Chung, Moon Hee Han, Dong Gyu Kim, Sun Ha Paek
Publikováno v:
PLoS ONE, Vol 11, Iss 11, p e0165783 (2016)
We retrospectively analyzed our experience with time-staged gamma knife stereotactic radiosurgery (GKS) in treating large arteriovenous malformation(AVM)s;≥ 10 cm3).Forty-five patients who underwent time-staged GKS (2-stage, n = 37;3-stage,n = 8) b
Externí odkaz:
https://doaj.org/article/7061d3dec412418da2f5064faf2eeddf
Publikováno v:
Journal of Neurosurgery. :1-11
OBJECTIVE Gamma Knife surgery (GKS) is a well-established treatment for benign intracranial meningiomas; however, the dosimetric factors associated with long-term GKS efficacy and safety remain to be elucidated. Using data obtained with at least 10 y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b125aec000c871ac48695fe16ee41a24
https://doi.org/10.3171/2022.8.jns22422
https://doi.org/10.3171/2022.8.jns22422
Autor:
Tae Hoon Kim, Hye Jeong Yang, Jae Young Jeong, Thomas Schaarschmidt, Yong Kyun Kim, Hyun‐Tai Chung
Publikováno v:
Medical Physics. 49:1944-1954
Scintillation detectors were 3D printed based on a gamma knife (GK) dose distribution to calculate the volume averaging effect. The collimator output factors were measured using isodose-shaped scintillators (ISSs) and compared with those of a micro-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dc55ecbf150c6dd171d92de60947a25
https://doi.org/10.1002/mp.15469
https://doi.org/10.1002/mp.15469