| Diagnostic accuracy of coronary computed tomography angiography as interpreted on a mobile handheld phone device. | |
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MedLine Citation:
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PMID: 20466343 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: This study assessed the diagnostic performance of coronary computed tomography angiography (CTA) for the detection and exclusion of significant coronary artery stenosis as remotely interpreted on a mobile handheld device with dedicated medical imaging software. BACKGROUND: Recent advances in technology now permit remote interpretation of medical imaging studies on mobile handheld devices, although the diagnostic performance of this approach is unknown. METHODS: We evaluated 102 patients with stable chest pain and both 64-detector row coronary CTA and quantitative invasive coronary angiography. The diagnostic performance of remote coronary CTA interpretation was assessed using a mobile handheld device and employing dedicated software. The coronary CTA studies were examined in an intent-to-diagnose manner for the presence or absence of coronary artery stenosis > or =50% on a per-artery and per-patient level; results were compared with quantitative invasive coronary angiography. Two blinded imagers independently interpreted coronary CTA studies, with a third imager achieving consensus for discordance. Coronary CTAs were re-interpreted in random order to determine interobserver agreement. Finally, coronary CTAs were evaluated on a dedicated 3-dimensional imaging workstation; results were compared to mobile handheld device findings for intertechnology agreement. RESULTS: The prevalence of significant coronary artery stenosis was 25% (26 of 102) at the per-patient level and 10% (40 of 405) at the per-artery level. Per-patient and per-artery sensitivity, specificity, and positive and negative predictive values were: 100% (26 of 26), 78% (59 of 76), 60% (26 of 43), and 100% (59 of 59), respectively; and 95% (38 of 40), 85% (310 of 365), 41% (38 of 93), and 99% (310 of 312), respectively. At the per-artery level, interobserver, intraobserver, and intertechnology agreement was 0.74, 0.89, and 0.75, respectively (p < 0.01 for all). CONCLUSIONS: The interpretation of coronary CTA using a mobile handheld device with dedicated software for medical image evaluation possesses high diagnostic accuracy for detection and exclusion of significant coronary stenosis. |
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Authors:
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Troy M LaBounty; Robert J Kim; Fay Y Lin; Matthew J Budoff; Jonathan W Weinsaft; James K Min |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Multicenter Study |
Journal Detail:
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Title: JACC. Cardiovascular imaging Volume: 3 ISSN: 1876-7591 ISO Abbreviation: JACC Cardiovasc Imaging Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-14 Completed Date: 2010-08-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101467978 Medline TA: JACC Cardiovasc Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 482-90 Citation Subset: IM |
Copyright Information:
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Copyright 2010 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Medicine, Weill Cornell Medical College-New York Presbyterian Hospital, New York, New York 10021, USA. tml9001@med.cornell.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Angina Pectoris / etiology, radiography Cellular Phone* Computers, Handheld* Coronary Angiography / methods* Coronary Stenosis / complications, radiography* Female Humans Male Middle Aged Observer Variation Predictive Value of Tests Radiographic Image Interpretation, Computer-Assisted / instrumentation* Reproducibility of Results Sensitivity and Specificity Severity of Illness Index Software Teleradiology / instrumentation* Tomography, X-Ray Computed* United States |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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