Usefulness of Combining Post-processing Scatter Correction and an Anti-scatter Grid in Chest Standing Radiography

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  • Fujikawa Keita
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Osaki Takao
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Nakagawa Hideo
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Kikuchi Keisuke
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Kiriki Masato
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Wada Yuya
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Miki Ryosuke
    Department of Radiological Technology, Hyogo College of Medicine College Hospital
  • Kotoura Noriko
    Department of Radiological Technology, Hyogo College of Medicine College Hospital

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  • 胸部立位 X 線撮影におけるグリッドと散乱 X 線補正処理を併用したシステムの有用性
  • キョウブ リツイ Xセン サツエイ ニ オケル グリッド ト サンラン Xセン ホセイ ショリ オ ヘイヨウ シタ システム ノ ユウヨウセイ

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<p>Purpose: The aim of this study was to evaluate the usefulness of combining post-processing scatter correction (IG) and an anti-scatter grid (RG) in chest radiography. Method: To determine the combination protocol (Hyb) that was closed to RG 12:1 (RG12), we measured the content rate of scattered radiation for each combination (RG12, IG12, RG3–12+IG3–12). Task-based modulation transfer function (MTF_Task) and SDNR were evaluated using RG12, IG12, and Hyb. Additionally, seven radiologists performed visual evaluation by using chest phantom. Result: The protocol of Hyb was RG8+IG3. In SDNR, Hyb (RG8+IG3) was equal to or higher than RG12, and MTF_Task was equal in all grid systems. Hyb (RG8+IG3) was significantly superior to RG12 in visual evaluation. Conclusion: The combining post-processing scatter correction should be useful for improving inspection throughput and reducing the risk of gridʼs damage.</p>

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