Comparison of Liquid Crystal Display Monitors Calibrated With Gray-Scale Standard Display Function and With γ 2.2 and iPad: Observer Performance in Detection of Cerebral Infarction on Brain CT

Abstract

Observer performance for detecting cerebral infarction on the LCD with γ 2.2 calibration was found to be similar to the LCD with gray-scale standard display function calibration. Although observer performance using the iPad was poorer than that using the other LCDs, the difference was small. Therefore, the iPad could not substitute for other LCD monitors. However, owing to the promising potential advantages of tablet PCs, such as portability, further examination is needed into the clinical use of tablet PCs.

Radiological interpretation of images displayed on tablet computers: a systematic review

“…No difference of statistical significance was found in five of the six studies (Table 6). Yoshimura et al 19 did find the AUROC was significantly smaller for an iPad than for a gamma 2.2-calibrated LCD. The same author found no statistical difference between an iPad and DICOM GSDF-calibrated LCD.…”

“…The remaining studies used a secondary LCD as the reference standard display (Table 5). The ambient lighting was controlled in six of the studies, 9,10,15,17,19 whereas other authors intentionally used conventional lighting conditions to imitate conditions under which the tablet computer would be used. 2,8 The remaining studies did not state lighting conditions.…”

“…The diagnostic accuracy was assessed using MRMC ROC curve in four of the included studies. 8,9,16,19 In these studies, the diagnosis from images displayed on a tablet computer was compared with the gold standard diagnosis ( Table 4). The difference in area under the binormal ROC curve (AUROC) was used to test significance ( Figure 2).…”

“…The eight diagnostic accuracy studies 1,2,[8][9][10]15,18,19 were assessed with the QUADAS-2 tool for quality and risk of bias. All eight studies were judged high or unclear in at least one domain.…”

Initial clinical evaluation of observer performance using a tablet computer with a 4K high-resolution display for detection of breast cancer by digital mammography

“…With new developments in technology, opportunities for the use of tablet PCs in hospitals for management or diagnosis have increased because of the great advantages they have in terms of portability and applications for teleradiology [1][2][3][4]. An increasing number of reports have compared the use of mobile device screens with liquid-crystal displays (LCDs) for diagnosis, and the accuracy of the former is now considered to be almost equal to that of the latter, or at least acceptable, for MRI diagnosis of spinal injury, radiography and CT diagnosis of intracranial hemorrhage and orthopedic injury, and CT diagnosis of pulmonary embolism [5][6][7][8].…”