| Assessment of the accuracy of AortaScan for detection of abdominal aortic aneurysm (AAA). | |
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MedLine Citation:
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PMID: 22172238 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: AortaScan AMI 9700 is a portable 3D ultrasound device that automatically measures the maximum diameter of the abdominal aorta without the need for a trained sonographer. It is designed to rapidly diagnose or exclude an AAA and may have particular use in screening programs. Our objective was to determine its accuracy to detect AAA. METHODS: Subjects from our AAA screening and surveillance programs were examined. The aorta was scanned using the AortaScan and computed tomography (CT). RESULTS: Ninety-one subjects underwent imaging (44 AAA on conventional ultrasound surveillance and 47 controls). The largest measurement obtained by AortaScan was compared against the CT-aortic measurement. The mean aortic diameter was 2.8 cm. The CT scan confirmed the diagnosis of AAA in 43 subjects. There was one false positive measurement on conventional ultrasound. AortaScan missed the diagnosis of AAA in eight subjects. There were thirteen false positive measurements. The sensitivity, specificity, positive and negative predictive values were 81%, 72%, 72% and 81% respectively. CONCLUSION: A device to detect AAA without the need for a trained operator would have potential in a community-based screening programme. The AortaScan, however, lacks adequate sensitivity and significant technical improvement is necessary before it could be considered a replacement for trained screening personnel. |
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Authors:
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A Abbas; A Smith; M Cecelja; M Waltham |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2011-12-14 |
Journal Detail:
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Title: European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery Volume: 43 ISSN: 1532-2165 ISO Abbreviation: Eur J Vasc Endovasc Surg Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-01-09 Completed Date: 2012-02-23 Revised Date: 2012-04-11 |
Medline Journal Info:
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Nlm Unique ID: 9512728 Medline TA: Eur J Vasc Endovasc Surg Country: England |
Other Details:
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Languages: eng Pagination: 167-70 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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King's College London British Heart Foundation Centre of Research Excellence, Academic Department of Surgery, Cardiovascular Division, NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust and King's College Hospital, London SE1 7EH, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Aorta, Abdominal / radiography, ultrasonography* Aortic Aneurysm, Abdominal / radiography, ultrasonography* Humans Mass Screening Middle Aged Population Surveillance Predictive Value of Tests Sensitivity and Specificity Tomography, X-Ray Computed Ultrasonography / instrumentation* |
| Grant Support | |
ID/Acronym/Agency:
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//Department of Health |
| Comments/Corrections | |
Comment In:
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Eur J Vasc Endovasc Surg. 2012 Mar;43(3):359
[PMID:
22230597
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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