A preliminary study for exploring the luminance ratio of liquid-crystal displays required for display of radiographs

被引：3

作者：

Takarabe S. ^{[1
]}

Morishita J. ^{[2
]}

Yabuuchi H. ^{[2
]}

Akamine H. ^{[3
]}

Hashimoto N. ^{[4
]}

Nakamura Y. ^{[3
]}

Matsuo Y. ^{[5
]}

Hattori A. ^{[3
]}

机构：

[1] Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582

[2] Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582

[3] Department of Radiology, Kyushu University Hospital, Higashi-ku, Fukuoka 812-8582

[4] EIZO Corporation, Ishikawa 924-8566

[5] Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582

来源：

Radiological Physics and Technology | 2014年 / 7卷 / 1期

关键词：

Chest radiograph; Contrast ratio; Liquid-crystal display; Luminance ratio; Mammogram;

D O I：

10.1007/s12194-013-0233-2

中图分类号：

学科分类号：

摘要：

Medical-grade liquid-crystal displays (LCDs) with high contrast ratio (CR) values have recently been developed and become available for soft-copy reading. When the LCD is used under ambient light conditions, the luminance ratio (LR) is a more appropriate indicator than the CR. Our aim was to explore the LR required for LCDs for soft-copy reading by comparing the effective LR values with the LR of the LCD. We defined "the luminance ratio in an image (LRimg)", the ratio of the maximum to minimum luminance in a radiograph displayed on the LCD, as the effective LR values required for the LCD. The maximum LRimg values in chest radiographs and those in mammograms ranged from 109 to 143 and 372 to 431, respectively. The LR of the LCD was higher than the LRimg values of the radiographs. Our results indicate that currently available medical-grade LCDs have enough LR for display of radiographs. © Japanese Society of Radiological Technology and Japan Society of Medical Physics 2013.

引用

页码：73 / 78

页数：5

共 12 条

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