新しい輝尽性蛍光板を用いた位相イメージングによるエッジ強調効果の評価

• 松尾 悟

  滋賀医科大学医学部附属病院放射線部 岐阜大学大学院医学系研究科再生医科学専攻知能イメージ情報分野

• 杜下 淳次

  九州大学大学院医学系学府保健学専攻

• 片渕 哲朗

  岐阜医療科学大学放射線技術学科

• 藤田 広志

  岐阜大学大学院医学系研究科再生医科学専攻知能イメージ情報分野

書誌事項

タイトル別名

• Evaluation of Edge Enhancement Effect of Phase Contrast Imaging Using Newly-developed Photostimulable Phosphor Plate
• アタラシイキジンセイ ケイコウバン オ モチイタ イソウ イメージング ニ ヨル エッジ キョウチョウ コウカ ノ ヒョウカ

抄録

We investigated whether the use of a newly developed columnar-crystal-type photostimulable-phosphor plate (CP1M200, referred to as system C) helps to provide improved edge-enhanced effect in phase contrast imaging. Physical characteristics of 2 conventional particulate-crystal-type photostimulable-phosphor plates (RP-5PM, referred to as system A and RP-6M, referred to as system B) and system C were measured. Then, an acrylic plate phantom and RMI152 phantom were imaged using 3 types of plates, and the edge-enhancement effects were evaluated based on the profile curve of the acrylic plate phantom. Visual evaluation of the RMI152 phantom images was conducted. The results showed that the modulation transfer function (MTF) of system C was superior to those of the other systems. The WS of system C was superior to those of the other systems in the low frequency band region, and inferior to those of the other systems in the high frequency band region. The presence of an edge-enhanced image was not detectable in the profile curve of the acrylic plate in system A, although that was shown in systems B and C due to their excellent sharpness. In the visual image evaluation of the RMI152 phantom, image quality of system C was superior to those of the other systems. Phase contrast imaging with a digital detector of a columnar-crystal-type photostimulable-phosphor plate is considered to provide improved edge-enhancement over that of conventional plates.

収録刊行物

• 日本放射線技術学会雑誌

  日本放射線技術学会雑誌 68 (5), 563-572, 2012

  公益社団法人 日本放射線技術学会

キーワード

• phase-contrast imaging
• edge-enhancement
• photostimulable phosphor plate
• columnar crystal type

詳細情報

• CRID: 1390282681340366080
• NII論文ID: 10030431224
• NII書誌ID: AN00197784
• DOI: 10.6009/jjrt.2012_jsrt_68.5.563
• COI: 1:STN:280:DC%2BC38jgslyntw%3D%3D
• ISSN: 18814883
• ISSN: 03694305
• NDL書誌ID: 023828555
• PubMed: 22687901
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023828555
• Web Site: https://search.jamas.or.jp/link/ui/2012256947
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可