Questionnaires for Screening Digital Mammography in Japan : Part 2
Questionnaires for Screening Digital Mammography in Japan : Part 2
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日本数字化乳房 X 光检查筛查问卷:第 2 部分
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Norimitsu Shinohara
中科院分区:
文献类型:
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作者:
Takayuki Yamada;T. Ishibashi;M. Sai;K. Ohnuki;T. Uematsu;M. Matsumoto;N. Uchiyama;Takeshi Hara;Norimitsu Shinohara
The purpose of this study was to learn more about digital screening mammography in Japan by conducting a questionnaire survey. We mailed the questionnaires to 1,900 institutes and achieved a response rate of 43.2% . We found that reasons for reading on hard copy included the added expense of a viewer system and familiarity with reading films hung on a light box, as well as the ability to read films simultaneously on ― site. However, both hard copy and soft copy reading were employed for interpreting the screening mammograms. In soft copy reading, the time spent by the readers in interpreting the results varied more widely than for screen ― film mammography. Most readers magnified the images and changed the window width and window level, using mainly 5― megapixel ( MP ) liquid crystal displays ( LCDs ) . Although the use of 3― megapixel ( MP ) LCDs was not uncommon, 5 MP LCDs were used in most cases when reading digital mammograms obtained with flat ― panel detectors. In contrast, 3 MP LCDs were used more frequently in reading computed radiography mammograms. The use of a computer ― assisted detection ( CAD ) system for digital mammography was not prevalent in Japan, although a few readers used one to confirm their suspicions of a lesion. Readers the CAD system however, so in the future.