Comparison between a new computer program and the reference software for gray‐scale median analysis of atherosclerotic carotid plaques. Issue 3 (28th May 2014)

• Record Type: Journal Article
• Authors: Casella, Ivan Benaduce; Fukushima, Rodrigo Bono; Marques, Anita Battistini de Azevedo; Cury, Marcus Vinícius Martins; Presti, Calógero
• Is Part Of: Journal of clinical ultrasound. Volume 43:Issue 3(2015:Apr.)
• Page Start: 194
• Page End: 198
• Publication Date: 2014-05-28
• Subjects: Ultrasonics in medicine -- Periodicals; 616.07543
• DOI: 10.1002/jcu.22178
• Languages: English
• ISSNs: 0091-2751

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <sec id="jcu22178-sec-0001" sec-type="section"> <title>Purpose</title> <p>To compare a new dedicated software program and Adobe Photoshop for gray‐scale median (GSM) analysis of B‐mode images of carotid plaques.</p> </sec> <sec id="jcu22178-sec-0002" sec-type="section"> <title>Methods</title> <p>A series of 42 carotid plaques generating ≥50% diameter stenosis was evaluated by a single observer. The best segment for visualization of internal carotid artery plaque was identified on a single longitudinal view and images were recorded in JPEG format. Plaque analysis was performed by both programs. After normalization of image intensity (blood = 0, adventitial layer = 190), histograms were obtained after manual delineation of plaque. Results were compared with nonparametric Wilcoxon signed rank test and Kendall tau‐b correlation analysis.</p> </sec> <sec id="jcu22178-sec-0003" sec-type="section"> <title>Results</title> <p>GSM ranged from 00 to 100 with Adobe Photoshop and from 00 to 96 with IMTPC, with a high grade of similarity between image pairs, and a highly significant correlation (<italic>R</italic> = 0.94, <italic>p</italic> &lt; .0001).</p> </sec> <sec id="jcu22178-sec-0004" sec-type="section"> <title>Conclusions</title> <p>IMTPC software appears suitable for the GSM analysis of carotid plaques. © 2014 Wiley Periodicals, Inc. <italic>J Clin Ultrasound</italic><bold>43</bold>:194–198, 2015;</p> </sec> </abstract>