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Leksell Gamma Knife Perfexion과 Model C의 치료계획 효용성 비교 : 임상연구

Other Titles
 Comparison of Efficiency in Dose Planning of the Leksell Gamma Knife Perfexion and Model C : Clinical Study 
 김정재  ;  김기홍  ;  박용구  ;  장종희 
 Journal of Korean Brain Tumor Society (대한뇌종양학회지), Vol.11(2) : 114-117, 2012 
Journal Title
 Journal of Korean Brain Tumor Society (대한뇌종양학회지) 
Issue Date
Radiosurgery ; Gamma Knife ; Dose planning ; Perfexion ; Model C
Objective:The purpose of this study was to compare the dose planning between the Leksell Gamma Knife Perfexion (LGK PFX) and the Leksell Gamma Knife C (LGK C) using variable indices. Methods:A total of 100 cases, which were composed of 35 meningiomas, 20 vestibular schwannomas, 35 metastases, and 10 pituitary adenomas, were enrolled in this study. First, these cases were treated with the LGK PFX and then, were re-planned with the LGK C. We compared these two models in terms of the number of shots, the percentage of coverage, the conformity index (CI), Paddick’s conformity index (PCI), the gradient index (GI), and the beam on time. Results:The LGK PFX completely outperformed the LGK C in terms of GI and the LGK PFX tended to have a longer beam on time than that of the LGK C. However, in patients with schwannomas, the LGK PFX outperformed the LGK C in terms of the CI, PCI, and GI, and in patients with pituitary adenomas, the LGK PFX outperformed the LGK C in terms of the percentage of coverage, PCI, and GI with statistical significance. Conclusion:The LGK PFX is an entirely redesigned radiosurgery unit accompanied by the development of software. The LGK PFX is supposed to achieve highly conformal dose prescription consisting of many isocenters with a reasonable treatment time.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Gou(박용구)
Chang, Jong Hee(장종희) ORCID logo https://orcid.org/0000-0003-1509-9800
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