Samir Abboud BS, Presenter: Nothing to Disclose

Frederick Ethan Weiss MD, Abstract Co-Author: Nothing to Disclose

Cesar E. Orellana MD, Abstract Co-Author: Nothing to Disclose

Anna Orellana MD, Abstract Co-Author: Nothing to Disclose

Eliot L. Siegel MD, Abstract Co-Author: Research grant, General Electric Company Speakers Bureau, Siemens AG Board of Directors, Carestream Health, Inc Research grant, XYBIX Systems, Inc Research grant, Steelcase, Inc Research grant, Anthro Corp Research grant, RedRick Technologies Inc Research grant, Evolved Technologies Corporation Research grant, Barco nv Research grant, Intel Corporation Research grant, Dell Inc Research grant, Herman Miller, Inc Research grant, Virtual Radiology Research grant, Anatomical Travelogue, Inc Medical Advisory Board, Fovia, Inc Medical Advisory Board, Vital Images Medical Advisory Board, McKesson Corporation Medical Advisory Board, Carestream Health, Inc Medical Advisory Board, Bayer AG Research, TeraRecon, Inc Medical Advisory Board, Bracco Group Researcher, Bracco Group Medical Advisory Board, Merge Healthcare Incorporated Medical Advisory Board, Microsoft Corporation Researcher, Microsoft Corporation

Jean Jeudy MD, Abstract Co-Author: Nothing to Disclose

Mobile imaging offers great potential for untethering the radiologist from a diagnostic workstation, extending their impact on patient care beyond the reading room. This study assessed the role of an iPad as a imaging tool for gross pathology with regards to tuberculosis (TB) screening.

Chest x-rays were collected from 250 patients (200 negative and fifty positive) referred for TB screening, and identifying information was removed. All images were reviewed independently and in random order by five chest-fellowship trained radiologists on LCD PACS monitors, and scored as either positive or negative for TB. All images were also reviewed (in random order) by the same five readers on an iPad display using the OsiriX DICOM viewer. Each pair of readings (monitor and iPad for each reader) was separeted by one month, and the display method for the first reading was randomly selected to reduce bias. The iPad image review occurred in an office setting with more ambient light than the reading room. The results were tabulated and investigated for inter- and intra-reader variability using intraclass correlation statistics.

Preliminary results indicate no statistically significant difference in sensitivity and specificity for detection of TB between LCD PACS monitors and iPad display.

The iPad was not demonstrated to be inferior to a standard LCD workstation monitor for the purposes of TB screening. Because of the composition of the reader group, these results apply only to fellowship trained chest radiologists, and cannot be extended to radiologists earlier in training or other fields. In spite of this limitation, it is reasonable to conclude that the iPad warrants further investigation as a medical imaging and teaching tool.

The iPad holds great potential as an adjunct to an imaging report, potentially as a screening tool, and allowing for greater integration of the radiologist into the clinical care team.

Abboud, S, Weiss, F, Orellana, C, Orellana, A, Siegel, E, Jeudy, J, TB or Not TB? Inter- and Intrareader Variability in Screening Diagnosis on an iPad vs a Traditional Display.  Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 26 - December 2, 2011 ,Chicago IL. http://archive.rsna.org/2011/11013548.html