What is another name for the quantity in Problem 3.134? Refer to Problem 3.134, If a subject
Question:
Refer to Problem 3.134,
If a subject tests positive on an iPad 2 display, then what is the probability that he(she) will also test positive on the LCD?
Radiology
Mobile displays have the potential to increase the flexibility of consulting radiologists if they can be shown to be comparable to traditional display modalities. A study was performed comparing a mobile display iPad 2 with a larger liquid crystal display (LCD) for the diagnosis of tuberculosis (TB) on chest radiography (Abboud et al., [19]). De-identified images of 240 chest X-rays were transferred from a PACS workstation (LCD) to an iPad 2 tablet. The images were reviewed independently by 5 radiologists and were graded as positive or negative for TB on both the LCD and the iPad 2. The reviews occurred at different times to avoid recall bias.
A database of > 500 chest X-rays was created from TB screening films over a 4-month period. Of these, 200 cases originally interpreted as TB-negative and 40 cases originally interpreted as TB-positive were selected at random for study. The images were re-reviewed using both an LCD and an iPad 2 imaging display, albeit at different times. The results were as shown in Table 3.21.
Table 3.21: Comparison of TB screening results using an LCD and iPad 2 display
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