Mori Shinichiro, Kobayashi Masanao, Kumagai Motoki, Minohara Shinichi
Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan.
Radiol Phys Technol. 2009 Jan;2(1):40-5. doi: 10.1007/s12194-008-0040-3. Epub 2008 Nov 7.
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.
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。