Fractal dimension estimation of carotid atherosclerotic plaques from B-mode ultrasound: A pilot study

Asvestas, P; Golemati, S; Matsopoulos, GK; Nikita, KS; Nicolaides, AN

dc.contributor.author	Asvestas, P	en
dc.contributor.author	Golemati, S	en
dc.contributor.author	Matsopoulos, GK	en
dc.contributor.author	Nikita, KS	en
dc.contributor.author	Nicolaides, AN	en
dc.date.accessioned	2014-03-01T01:17:56Z
dc.date.available	2014-03-01T01:17:56Z
dc.date.issued	2002	en
dc.identifier.issn	0301-5629	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14707
dc.subject	B-mode ultrasound	en
dc.subject	Carotid plaque	en
dc.subject	Fractal dimension	en
dc.subject	kth nearest neighbour	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Radiology, Nuclear Medicine & Medical Imaging	en
dc.subject.other	Fractals	en
dc.subject.other	Medical problems	en
dc.subject.other	Neurology	en
dc.subject.other	Atherosclerotic plaques	en
dc.subject.other	Ultrasonic imaging	en
dc.subject.other	adult	en
dc.subject.other	aged	en
dc.subject.other	article	en
dc.subject.other	atherosclerotic plaque	en
dc.subject.other	carotid artery disease	en
dc.subject.other	clinical article	en
dc.subject.other	clinical trial	en
dc.subject.other	controlled clinical trial	en
dc.subject.other	controlled study	en
dc.subject.other	diagnostic value	en
dc.subject.other	female	en
dc.subject.other	fractal analysis	en
dc.subject.other	human	en
dc.subject.other	male	en
dc.subject.other	priority journal	en
dc.subject.other	ultrasound	en
dc.subject.other	Aged	en
dc.subject.other	Aged, 80 and over	en
dc.subject.other	Algorithms	en
dc.subject.other	Carotid Arteries	en
dc.subject.other	Carotid Artery Diseases	en
dc.subject.other	Female	en
dc.subject.other	Fractals	en
dc.subject.other	Humans	en
dc.subject.other	Image Interpretation, Computer-Assisted	en
dc.subject.other	Male	en
dc.subject.other	Middle Aged	en
dc.subject.other	Pilot Projects	en
dc.title	Fractal dimension estimation of carotid atherosclerotic plaques from B-mode ultrasound: A pilot study	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0301-5629(02)00550-1	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0301-5629(02)00550-1	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	In this paper, a pilot study regarding carotid atherosclerotic plaque instability using B-mode ultrasound (US) images was carried out. The fractal dimension of plaques obtained from ten symptomatic subjects (i.e., subjects having experienced neurological symptoms) as well as from nine asymptomatic subjects, was estimated using a novel method, called the kth nearest neighbour (KNN) method. The results indicated a significant difference, as per the fractal dimension, between the two groups, providing a significantly lower value for the asymptomatic group. Moreover, the phase of the cardiac cycle (systole/diastole) during which the fractal dimension was estimated had no systematic effect on the calculations. The fractal dimension of the plaques was also estimated using a well-known method, namely the box-counting (BC) method. No significant differences between the two groups, as per the fractal dimension, were observed using the BC method. The presented pilot study suggests that the fractal dimension, estimated by the proposed method, could be used as a single determinant for the discrimination of symptomatic and asymptomatic subjects. Copyright © 2002 World Federation for Ultrasound in Medicine & Biology.	en
heal.publisher	ELSEVIER SCIENCE INC	en
heal.journalName	Ultrasound in Medicine and Biology	en
dc.identifier.doi	10.1016/S0301-5629(02)00550-1	en
dc.identifier.isi	ISI:000178732200005	en
dc.identifier.volume	28	en
dc.identifier.issue	9	en
dc.identifier.spage	1129	en
dc.identifier.epage	1136	en