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Reduction of Patient Dose in Digital Mammography: Simulation of Low-Dose Image from a Routine Dose

机译：减少数字化乳腺摄影中的患者剂量：从常规剂量模拟低剂量图像

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摘要

Several low-dose images are necessary to obtain an image that can be used for diagnosis. However, it is clinically undesirable to expose a patient to multiple exposures in order to obtain an optimal image. The purpose of this study was to simulate a low-dose image from the image generated by a routine dose. Images of acrylic steps were obtained using multiple doses in digital mammography with computed radiography to generate additional noise. This noise was added to take into account the resolution of the X-ray detector using the some filters. The image simulated using the filter based on the WS was similar to an actual low-dose image. The image simulated using the presampled MTF filter was less similar to an actual low-dose image. By using the proposed method, we were able to obtain a simulated low-dose image from an image generated by a routine dose.
机译：要获得可用于诊断的图像，需要几个低剂量图像。但是，在临床上不希望使患者进行多次曝光以获得最佳图像。这项研究的目的是从常规剂量产生的图像中模拟低剂量图像。使用数字化乳腺摄影中的多次剂量和计算机射线照相来产生额外的噪音，从而获得丙烯酸阶的图像。添加此噪声是为了考虑使用某些滤镜的X射线探测器的分辨率。使用基于WS的过滤器模拟的图像类似于实际的低剂量图像。使用预采样的MTF滤波器模拟的图像与实际的低剂量图像不太相似。通过使用提出的方法，我们能够从常规剂量生成的图像中获得模拟的低剂量图像。

著录项

  • 来源
    《Breast imaging》|2012年|611-618|共8页
  • 会议地点 Philadelphia PA(US)
  • 作者

    Yuki Saito; Aya Kawai; Naotoshi Fujita; Maki Yamada; Yoshie Kodera;

  • 作者单位

    Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan;

    Department of Radiological Technology. Toyota Regional Medical Center, Toyota, Japan;

    Department of Radiological Technology. Nagoya University Hospital, Nagoya, Japan;

    Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan;

    Department of Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    simulation; computed radiography; dose reduction;

    机译：模拟;计算机射线照相；减少剂量;

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