DEVELOPMENT OF A WEB-BASED CT DOSE CALCULATOR: WAZA-ARI
DEVELOPMENT OF A WEB-BASED CT DOSE CALCULATOR: WAZA-ARI
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DOI：
10.1093/rpd/ncr333
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发表时间：
2011-09-01
影响因子：
1
通讯作者：
Kai, M.
中科院分区：
文献类型：
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作者：
Ban, N.;Takahashi, F.;Kai, M.
基于网络的计算机断层扫描 (CT) 剂量计算系统 (WAZA-ARI) 正在基于辐射传输模拟和软件实现的现代技术开发。使用粒子和重离子传输代码系统在体素型日本成年男性体模（JM 体模）中计算剂量系数。在蒙特卡罗模拟中，体模受到 5 毫米厚的扇形光子束的照射，该光子束在垂直于身体轴线的平面上旋转。剂量系数被集成到系统中，该系统作为 Apache Tomcat 中的 Java servlet 运行。将 GE LightSpeed 16 的 WAZA-ARI 输出与使用 MIRD 和 ICRP 成年男性模型类似计算的剂量值进行比较。由于体模配置存在一些差异，这表明使用适当的体模进行剂量计算的重要性。虽然剂量系数目前仅适用于有限的 CT 扫描仪型号和扫描选项，但开发完成后，WAZA-ARI 将成为临床实践中的有用工具。
A web-based computed tomography (CT) dose calculation system (WAZA-ARI) is being developed based on the modern techniques for the radiation transport simulation and for software implementation. Dose coefficients were calculated in a voxel-type Japanese adult male phantom (JM phantom), using the Particle and Heavy Ion Transport code System. In the Monte Carlo simulation, the phantom was irradiated with a 5-mm-thick, fan-shaped photon beam rotating in a plane normal to the body axis. The dose coefficients were integrated into the system, which runs as Java servlets within Apache Tomcat. Output of WAZA-ARI for GE LightSpeed 16 was compared with the dose values calculated similarly using MIRD and ICRP Adult Male phantoms. There are some differences due to the phantom configuration, demonstrating the significance of the dose calculation with appropriate phantoms. While the dose coefficients are currently available only for limited CT scanner models and scanning options, WAZA-ARI will be a useful tool in clinical practice when development is finalised.