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Registration of Real-Time 3-D Ultrasound to Tomographic Images of the Abdominal Aorta

Registration of Real-Time 3-D Ultrasound to Tomographic Images of the Abdominal Aorta

Category
Journal publication
Abstract
The purpose of this study was to develop an image-based method for registration of real-time 3-D ultrasound to computed tomography (CT) of the abdominal aorta, targeting future use in ultrasound-guided endovascular intervention. We proposed a method in which a surface model of the aortic wall was segmented from CT, and the approximate initial location of this model relative to the ultrasound volume was manually indicated. The model was iteratively transformed to automatically optimize correspondence to the ultrasound data. Feasibility was studied using data from a silicon phantom and in vivo data from a volunteer with previously acquired CT. Through visual evaluation, the ultrasound and CT data were seen to correspond well after registration. Both aortic lumen and branching arteries were well aligned. The processing was done offline, and the registration took approximately 0.2 s per ultrasound volume. The results encourage further patient studies to investigate accuracy, robustness and clinical value of the approach.
Language
English
Author(s)
Affiliation
  • Norwegian University of Science and Technology
  • SINTEF Digital / Health Research
  • St. Olavs Hospital, Trondheim University Hospital
  • St. Olavs Hospital, Trondheim University Hospital
Year
2016
Published in
Ultrasound in Medicine and Biology
ISSN
0301-5629
Publisher
Elsevier Science
Volume
42
Issue
8
Page(s)
2026 - 2032