Target localization errors from fiducial markers implanted around a lung tumor for dynamic tumor tracking
Target localization errors from fiducial markers implanted around a lung tumor for dynamic tumor tracking
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DOI：
10.1016/j.ejmp.2015.06.012
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发表时间：
2015-12-01
影响因子：
3.4
通讯作者：
Hiraoka, Masahiro
中科院分区：
文献类型：
--
作者：
Nakamura, Mitsuhiro;Takamiya, Masanori;Hiraoka, Masahiro
目的：用3种不同的重心(CG)和3种不同的多元回归分析(MRA)方法评估植入的基准标记物的靶点定位误差(TLE)。方法：在15例肺癌患者的透视图像上检测标记物的三维位置(3D)，并假设最接近肿瘤的标记物为靶点(P-t)。根据与目标(P-i，1)相邻的三个标记来计算估计的目标位置(P-e
Purpose: To assess target localization errors (TLEs) from implanted fiducial markers by three different centers of gravity (CG) and three different multiple regression analysis (MRA) approaches.Methods: The three-dimensional (3D) positions of the markers were detected on the fluoroscopic images of 15 lung cancer patients, and the marker closest to the tumor was then assumed to be the target (P-t). The estimated target position (P-e) was calculated from three markers adjacent to the target (P-i, 1