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다엽 콜리메이터(Multileaf Collimator)와 합금납 차폐물(Lead Alloy Blok)의 반 그림자영역의 선량 분포상의 특성 비교
DC Field | Value | Language |
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dc.contributor.author | 금기창 | - |
dc.date.accessioned | 2021-12-27T16:54:04Z | - |
dc.date.available | 2021-12-27T16:54:04Z | - |
dc.date.issued | 1995-12 | - |
dc.identifier.issn | 1225-6765 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/186234 | - |
dc.description.abstract | Purpose: The Conformal Radiation Therapy has been widely used under favour of development of computer technologies. The delivery of a large number of static radiation fields are being necessary for the conformal irradiation. In this paper, we investigate dosimetric characteristics on penumbra regions of a multileaf collimator(MLC), and compare to those of lead alloy block for he optimal use of the system in 3-D conformal radiotherapy. Materials and Methods: The measurement of penumbra by MLC or lead alloy block was performed with 6 or 10 MV X-rays. The film was positioned at a dmax depth and 10 cm depth, and its optical density was determined using a scanning videodensitometer. The effective penumbra, the distance from 80% to 20% isodose lines and 90 to 10 were analyzed as a function of the angle between the direction of leaf motion and the edge defined by leaves. Results: Increasing MLC angle (0-75°) was observed with increasing the penumbra widths and the scalloping effect. There was no definite differences of penumbra width from 80% to 20% isodose lines, while being the small increase of penumbra width of lead alloy block are agree reasonably with those of MLC within 4.8mm. Conclusion: The comparative qualitative study of the penumbra between MLC and lead alloy block demonstrate the clinical acceptability and suitability of the multileaf collimator for 3-D conformal radiotherapy. | - |
dc.description.statementOfResponsibility | open | - |
dc.language | Korean | - |
dc.publisher | 대한치료방사선과학회 | - |
dc.relation.isPartOf | Journal of the Korean Society of Therapeutics Radiology(대한치료방사선과학회지) | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.title | 다엽 콜리메이터(Multileaf Collimator)와 합금납 차폐물(Lead Alloy Blok)의 반 그림자영역의 선량 분포상의 특성 비교 | - |
dc.title.alternative | Dosimetric Characteristics on Penumbra Regions of the Multileaf Collimator as Compared with the Lead Alloy Block | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiation Oncology (방사선종양학교실) | - |
dc.contributor.googleauthor | 이상욱 | - |
dc.contributor.googleauthor | 오영택 | - |
dc.contributor.googleauthor | 김우철 | - |
dc.contributor.googleauthor | 금기창 | - |
dc.contributor.googleauthor | 윤성익 | - |
dc.contributor.googleauthor | 김현수 | - |
dc.contributor.googleauthor | 박원 | - |
dc.contributor.googleauthor | 추성실 | - |
dc.contributor.googleauthor | 김귀언 | - |
dc.contributor.localId | A00272 | - |
dc.relation.journalcode | J03822 | - |
dc.contributor.alternativeName | Keum, Ki Chang | - |
dc.contributor.affiliatedAuthor | 금기창 | - |
dc.citation.volume | 13 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 391 | - |
dc.citation.endPage | 396 | - |
dc.identifier.bibliographicCitation | Journal of the Korean Society of Therapeutics Radiology (대한치료방사선과학회지), Vol.13(4) : 391-396, 1995-12 | - |
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