Tanaka Rie, Ichikawa Katsuhiro, Matsubara Kosuke, Kawashima Hiroki
Department of Radiological Technology, School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan.
Radiol Phys Technol. 2012 Jul;5(2):178-85. doi: 10.1007/s12194-012-0152-7. Epub 2012 Apr 25.
Reduction of exposure dose and improvement in image quality can be expected to result from advances in the performance of imaging detectors. A number of researchers have reported on methods for simulating reduced dose images. The simplest method provides reduced dose images by adding white Gaussian noise with a certain standard deviation to the original image. Our aim in this study was to develop and validate a system with a graphic user interface for simulating reduced dose images by a simple method. Here, we describe a technical approach with the use of a flat-panel detector system, and we validated the simulation performance in reducing the dose objectively and subjectively. In addition, the technical limitations and possible solutions to the simple method are suggested based on the validation results presented in this paper.
成像探测器性能的提升有望带来曝光剂量的降低和图像质量的改善。许多研究人员已经报道了模拟低剂量图像的方法。最简单的方法是通过向原始图像添加具有一定标准差的白高斯噪声来生成低剂量图像。本研究的目的是开发并验证一个带有图形用户界面的系统，通过一种简单方法模拟低剂量图像。在此，我们描述一种使用平板探测器系统的技术方法，并客观和主观地验证了该模拟在降低剂量方面的性能。此外，基于本文给出的验证结果，提出了该简单方法的技术局限性和可能的解决方案。
