Detectability of a lung nodule displayed on a liquid-crystal display monitor with different maximum luminance settings

Our purpose in this study was to examine the detectability of a lung nodule at different maximum luminance settings of a liquid-crystal display (LCD) monitor by utilizing receiver operating characteristic (ROC) analysis. The LCD monitor used in this study was calibrated to the grayscale standard display function with different maximum luminance settings (670, 450, and 170 cd/m2). The average area under the ROC curve (AUC) and the standard deviation for all observers at 670, 450, and 170 cd/m2 were 0.837 ± 0.076, 0.832 ± 0.051, and 0.830 ± 0.078, respectively. There was no statistically significant difference in AUC as a function of the maximum luminance setting of the LCD monitor. Considering the results, setting the maximum luminance of an LCD monitor at a higher level may not provide a significant advantage in the detectability of a lung nodule.

[1]  Yuji Matsumoto.  [Quality assurance guideline for medical imaging display systems: Japan Industries Association of Radiological Systems Standards JESRA X-0093*A-2010]. , 2010, Nihon Hoshasen Gijutsu Gakkai zasshi.

[2]  H E Rockette,et al.  Effects of luminance and resolution on observer performance with chest radiographs. , 2000, Radiology.

[3]  Junji Shiraishi,et al.  [A test method for assessing statistical significance for differences between modalities using multi-reader multi-case ROC analysis]. , 2007, Nihon Hoshasen Gijutsu Gakkai zasshi.

[4]  Richard L. Van Metter,et al.  Handbook of Medical Imaging , 2009 .

[5]  Lorenzo L. Pesce,et al.  Reliable and computationally efficient maximum-likelihood estimation of "proper" binormal ROC curves. , 2007, Academic radiology.

[6]  Junji Shiraishi,et al.  Tests of Statistically Significant Differences between Two Imaging Systems in ROC Analysis: : Use of the Jackknife Method and its Application , 1997 .

[7]  Berkman Sahiner,et al.  Front Matter: Volume 6515 , 2007 .

[8]  R. F. Wagner,et al.  Assessment of medical imaging systems and computer aids: a tutorial review. , 2007, Academic radiology.

[9]  Jin Mo Goo,et al.  Effect of monitor luminance and ambient light on observer performance in soft-copy reading of digital chest radiographs. , 2004, Radiology.

[10]  C. Metz,et al.  "Proper" Binormal ROC Curves: Theory and Maximum-Likelihood Estimation. , 1999, Journal of mathematical psychology.

[11]  K. Doi,et al.  Development of a digital image database for chest radiographs with and without a lung nodule: receiver operating characteristic analysis of radiologists' detection of pulmonary nodules. , 2000, AJR. American journal of roentgenology.

[12]  Elizabeth A. Krupinski,et al.  High luminance monochrome vs low luminance monochrome and color softcopy displays: observer performance and visual search efficiency , 2007, SPIE Medical Imaging.

[13]  Benjamin J. Pollard,et al.  Object detectability at increased ambient lighting conditions. , 2008, Medical physics.

[14]  Charles E. Metz.  Fundamental ROC Analysis , 2000 .

[15]  Ehsan Samei,et al.  Assessment of display performance for medical imaging systems: executive summary of AAPM TG18 report. , 2005, Medical physics.

[16]  Bradley M. Hemminger,et al.  The effect of intensity windowing on the detection of simulated masses embedded in dense portions of digitized mammograms in a laboratory setting , 2009, Journal of Digital Imaging.