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开发一种基于图形处理器(GPU)的多线程软件应用程序,用于计算放射治疗的数字重建射线照片。

Development of a GPU-based multithreaded software application to calculate digitally reconstructed radiographs for radiotherapy.

作者信息

Mori Shinichiro, Kobayashi Masanao, Kumagai Motoki, Minohara Shinichi

机构信息

Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan.

出版信息

Radiol Phys Technol. 2009 Jan;2(1):40-5. doi: 10.1007/s12194-008-0040-3. Epub 2008 Nov 7.

Abstract

To provide faster calculation of digitally reconstructed radiographs (DRRs) in patient-positioning verification, we developed and evaluated a graphic processing unit (GPU)-based DRR software application and compared it with a central processing unit (CPU)-based application. The evaluation metrics were calculation speed and image quality for various slice thicknesses. The results showed that the GPU-based DRR computation was an average of 50 times faster than the CPU-based methodology, whereas the image quality was very similar. This excellent performance may increase the accuracy of patient positioning and improve the patient treatment throughput time.

摘要

为了在患者体位验证中更快地计算数字重建射线照片(DRR),我们开发并评估了一种基于图形处理单元(GPU)的DRR软件应用程序,并将其与基于中央处理器(CPU)的应用程序进行了比较。评估指标为不同切片厚度下的计算速度和图像质量。结果表明,基于GPU的DRR计算平均比基于CPU的方法快50倍,而图像质量非常相似。这种出色的性能可能会提高患者体位的准确性,并缩短患者治疗的周转时间。

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