Document Detail

The iPad as a mobile device for CT display and interpretation: diagnostic accuracy for identification of pulmonary embolism.
MedLine Citation:
PMID:  22450843     Owner:  NLM     Status:  Publisher    
Recent software developments enable interactive, real-time axial, 2D and 3D CT display on an iPad by cloud computing from a server for remote rendering. The purpose of this study was to compare radiologists' interpretative performance on the iPad to interpretation on the conventional picture archive and communication system (PACS). Fifty de-identified contrast-enhanced CT exams performed for suspected pulmonary embolism were compiled as an educational tool to prepare our residents for night call. Two junior radiology attendings blindly interpreted the cases twice, one reader used the PACS first, and the other interpreted on the iPad first. After an interval of at least 2 weeks, the cases were reinterpreted in different order using the other display technique. Sensitivity, specificity, and accuracy for identification of pulmonary embolism were compared for each interpretation method. Pulmonary embolism was present in 25 patients, ranging from main pulmonary artery to subsegmental thrombi. Both readers interpreted 98 % of cases correctly regardless of display platform. There was no significant difference in sensitivity (98 vs 100 %, p = 1.0), specificity (98 vs 96 %, p = 1.0), or accuracy (98 vs 98 %, p = 1.0) for interpretation with the iPad vs the PACS, respectively. CT interpretation on an iPad enabled accurate identification of pulmonary embolism, equivalent to display on the PACS. This mobile device has the potential to expand radiologists' availability for consultation and expedite emergency patient management.
Pamela T Johnson; Stefan L Zimmerman; David Heath; John Eng; Karen M Horton; William W Scott; Elliot K Fishman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-27
Journal Detail:
Title:  Emergency radiology     Volume:  -     ISSN:  1438-1435     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9431227     Medline TA:  Emerg Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
The Russell H. Morgan Department of Radiology and Radiologic Science, Johns Hopkins School of Medicine, 601 N. Caroline Street, Room 3140D, Baltimore, MD, 21287, USA,
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