TY - JOUR
T1 - A preliminary study for exploring the luminance ratio of liquid-crystal displays required for display of radiographs
AU - Takarabe, Shinya
AU - Morishita, Junji
AU - Yabuuchi, Hidetake
AU - Akamine, Hiroshi
AU - Hashimoto, Noriyuki
AU - Nakamura, Yasuhiko
AU - Matsuo, Yoshio
AU - Hattori, Akiko
N1 - Funding Information:
Acknowledgments The authors are grateful to Kunio Doi (The University of Chicago, Gunma Prefectural College of Health Sciences) and Michinobu Matsuyama (Department of Radiology, Kumamoto University Hospital) for useful discussions. We also thank Eiji Myokan (EIZO Corporation, Fukuoka, Japan) for useful discussions and providing the LCD. We are grateful to the editorial assistant of this journal, Mrs. Lanzl, for providing initial and final polishing of the submitted manuscript in improving the readability and English expressions, and the editors and reviewers for giving us useful comments and suggestions for improving our manuscript. This manuscript was partly supported by Akiyoshi Ohtsuka Fellowship of the Japanese Society of Radiological Technology for improvement in English expression of a draft version of the manuscript.
PY - 2014/1
Y1 - 2014/1
N2 - 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.
AB - 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.
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U2 - 10.1007/s12194-013-0233-2
DO - 10.1007/s12194-013-0233-2
M3 - Article
C2 - 24002707
AN - SCOPUS:84896030980
SN - 1865-0333
VL - 7
SP - 73
EP - 78
JO - Radiological physics and technology
JF - Radiological physics and technology
IS - 1
ER -