A model for relative biological effectiveness of therapeutic proton beams based on a global fit of cell survival data.
A model for relative biological effectiveness of therapeutic proton beams based on a global fit of cell survival data.
复制标题
基于细胞存活数据的整体拟合,一种治疗质子束相对生物学有效性的模型。
DOI:
10.1038/s41598-017-08622-6
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发表时间:
2017-08-21
影响因子:
4.6
通讯作者:
Mohan R
中科院分区:
文献类型:
--
作者:
Abolfath R;Peeler CR;Newpower M;Bronk L;Grosshans D;Mohan R
We introduce an approach for global fitting of the recently published high-throughput and high accuracy clonogenic cell-survival data for therapeutic scanned proton beams. Our fitting procedure accounts for the correlation between the cell-survival, the absorbed (physical) dose and the proton linear energy transfer (LET). The fitting polynomials and constraints have been constructed upon generalization of the microdosimetric kinetic model (gMKM) adapted to account for the low energy and high lineal-energy spectrum of the beam where the current radiobiological models may underestimate the reported relative biological effectiveness (RBE). The parameters (α, β) of the linear-quadratic (LQ) model calculated by the presented method reveal a smooth transition from low to high LETs which is an advantage of the current method over methods previously employed to fit the same clonogenic data. Finally, the presented approach provides insight into underlying microscopic mechanisms which, with future study, may help to elucidate radiobiological responses along the Bragg curve and resolve discrepancies between experimental data and current RBE models.
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DOI:
10.1016/0360-3016(86)90041-6
发表时间:
1986-05-01
影响因子:
7
作者:
HERING, ER
通讯作者:
HERING, ER
影响因子:
3.4
作者:
Kase, Yuki;Kanai, Tatsuaki;Shinoda, Hiroshi
通讯作者:
Shinoda, Hiroshi
影响因子:
3.4
作者:
KATZ, R;ACKERSON, B;SHARMA, SC
通讯作者:
SHARMA, SC
影响因子:
3.5
作者:
Krämer, M;Jäkel, O;Weber, U
通讯作者:
Weber, U
影响因子:
3.5
作者:
Carabe-Fernandez, A.;Dale, R. G.;Paganetti, H.
通讯作者:
Paganetti, H.