Methodology for micro-CT data inflation using intravascular ultrasound images

Author

Rigas, George A. ; Athanasiou, Lambros S. ; Sakellarios, Antonios I. ; Exarchos, Themis P. ; Siogkas, Panagiotis K. ; Naka, Katerina K. ; Panetta, Daniele ; Pelosi, Gianni ; Michalis, Lampros K. ; Parodi, Oberdan ; Fotiadis, Dimitrios I.

Author_Institution

Dept. of Biomed. Res., FORTH, Ioannina, Greece

fYear

2014

fDate

26-30 Aug. 2014

Firstpage

1099

Lastpage

1102

Abstract

In this paper, a framework for the inflation of micro-CT data using intravascular ultrasound (IVUS) images, is presented. The proposed methodology consists of four steps. In the first step a centerline is extracted from the micro-CT images. In the second step the micro CT images are segmented automatically using the k-means algorithm. In the third step IVUS- micro-CT images are co-registered based on fiducial markers selected manually by the experts. Finally, the images are inflated by applying a transformation method on each image. The transformation method is based on the IVUS and micro-CT contour difference. The proposed methodology for inflating micro-CT images could increase the reliability of correct plaque labeling process as well to enhance the accuracy of the produced training dataset from the micro-CT images.

Keywords

biomedical ultrasonics; computerised tomography; image registration; image segmentation; IVUS images; intravascular ultrasound images; k-means algorithm; micro CT image segmentation; micro-CT contour difference; micro-CT data inflation; plaque labeling process; transformation method; Arteries; Atherosclerosis; Biomedical imaging; Computed tomography; Image segmentation; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2014.6943786

Filename

6943786