A robust method of multileaf collimator (MLC) leaf-configuration verification.
A robust method of multileaf collimator (MLC) leaf-configuration verification.
复制标题
多叶准直器 (MLC) 叶片配置验证的稳健方法。
DOI:
10.1088/0031-9155/39/11/009
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发表时间:
1994
影响因子:
3.5
通讯作者:
Verhey,LJ
中科院分区:
文献类型:
--
作者:
Zhou,SM;Verhey,LJ
Presents a novel and robust method for leaf-position verification with a multileaf collimator (MLC). On the portal image associated with an MLC-generated treatment field, all true treatment-held-edge lines are either parallel or perpendicular to each other. This unique feature of an MLC treatment field has been fully exploited by the authors' method. Employing a Hough-type transformation as an edge-line-orientation detector and a chamfer-matching method, the authors can find the best matching parameters (including translation, rotation and scaling) adaptively between a prescribed MLC leaf configuration and the actual treatment-held edges generated by the MLC system. This works even if the portal image is partially corrupted by noise or covered by compact bony structures. Comparing these parameters with clinically accepted tolerances, the authors can make a" go-or-no-go" decision quickly.
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DOI:
--
发表时间:
1988
期刊:
Strahlentherapie und Onkologie (Print)
影响因子:
--
作者:
Anders Brahme
通讯作者:
Anders Brahme
DOI:
10.1016/0167-8140(91)90051-h
发表时间:
1991
期刊:
Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology
影响因子:
--
作者:
R. Boesecke;G. Becker;K. Alandt;O. Pastyr;J. Doll;W. Schlegel;W. Lorenz
通讯作者:
W. Lorenz
DOI:
10.1016/0958-3947(91)90129-p
发表时间:
1991
期刊:
Medical dosimetry : official journal of the American Association of Medical Dosimetrists
影响因子:
--
作者:
P. Biggs
通讯作者:
P. Biggs
DOI:
10.1016/0958-3947(90)90045-j
发表时间:
1990
期刊:
Medical dosimetry : official journal of the American Association of Medical Dosimetrists
影响因子:
--
作者:
S. Hummel;T. Buchholz;G. Laramore
通讯作者:
G. Laramore
DOI:
--
发表时间:
1992
期刊:
Medical Physics (Lancaster)
影响因子:
--
作者:
G. Mageras;K. C. Podmaniczky;R. Mohan
通讯作者:
R. Mohan