Preliminary investigation and application of a novel deformable PRESAGE® dosimeter

被引：9

作者：

Juang, T. ^{[1
]}

Newton, J. ^{[1
]}

Das, S. ^{[1
]}

Adamovics, J. ^{[2
]}

Oldham, M. ^{[1
]}

机构：

[1] Duke Univ, Med Ctr, Durham, NC 27710 USA

[2] Rider Univ, Lawrenceville, NJ USA

来源：

7TH INTERNATIONAL CONFERENCE ON 3D RADIATION DOSIMETRY (IC3DDOSE) | 2013年 / 444卷

关键词：

D O I：

10.1088/1742-6596/444/1/012080

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Deformable 3D dosimeters have potential applications in validating deformable dose mapping algorithms. This study evaluates a novel deformable PRESAGE (R) dosimeter and its application toward validating the deformable algorithm employed by VelocityAI. The deformable PRESAGE (R) dosimeter exhibited a linear dose response with a sensitivity of 0.0032 Delta OD/(Gy/cm). Comparison of an experimental dosimeter irradiated with an MLC pencilbeam checkerboard pattern under lateral compression up to 27% to a non-deformed control dosimeter irradiated with the same pattern verified dose tracking under deformation. CTs of the experimental dosimeter prior to and during compression were exported into VelocityAI and used to map an Eclipse dose distribution calculated on the compressed dosimeter to its original shape. A comparison between the VelocityAI dose distribution and the distribution from the dosimeter showed field displacements up to 7.3 mm and up to a 175% difference in field dimensions. These results highlight the need for validating deformable dose mapping algorithms to ensure patient safety and quality of care.

引用

页数：4

共 6 条

[1] A novel technique to enable experimental validation of deformable dose accumulation [J].