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Proceedings Paper

Joint registration of location and orientation of intravascular ultrasound pullbacks using a 3D graph based method
Author(s): Ling Zhang; Andreas Wahle; Zhi Chen; Li Zhang; Richard Downe; Tomas Kovarnik; Milan Sonka
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Paper Abstract

A novel method for simultaneous registration of location and orientation of baseline and follow-up intravascular ultrasound (IVUS) pullbacks is reported. The main idea is to represent the registration problem as a 3D graph optimization problem (finding a minimum-cost path) solvable by dynamic programming. Thus, global optimality of the resulting location and orientation registration is guaranteed according to the employed cost function and node connections. The cost function integrates information related to vessel/plaque morphology, plaque shape and plaque/perivascular image data. The node connections incorporate the prior information about angular twisting between consecutively co-registered IVUS image pairs. Pilot validation of our method is currently available for four pairs of IVUS pullback sequences consisting of 323 IVUS image frames from four patients. Results showed the average location and orientation registration errors were 0.26 mm and 5.2°, respectively. Compared with our previous results, the new method offers significant alignment improvement (p < 0.001).

Paper Details

Date Published: 20 March 2015
PDF: 8 pages
Proc. SPIE 9413, Medical Imaging 2015: Image Processing, 94131I (20 March 2015); doi: 10.1117/12.2081475
Show Author Affiliations
Ling Zhang, The Univ. of Iowa (United States)
Andreas Wahle, The Univ. of Iowa (United States)
Zhi Chen, The Univ. of Iowa (United States)
Li Zhang, The Univ. of Iowa (United States)
Richard Downe, The Univ. of Iowa (United States)
Tomas Kovarnik, Univ. Hospital in Prague (Czech Republic)
Charles Univ. (Czech Republic)
Milan Sonka, The Univ. of Iowa (United States)


Published in SPIE Proceedings Vol. 9413:
Medical Imaging 2015: Image Processing
Sébastien Ourselin; Martin A. Styner, Editor(s)

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