A "Twisting and bending" model-based nonrigid image registration technique for 3-D ultrasound carotid images

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

18 Scopus Citations
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Author(s)

  • Nuwan D. Nanayakkara
  • Abbas Samani
  • J. David Spence
  • Jagath Samarabandu
  • Aaron Fenster

Detail(s)

Original languageEnglish
Article number4448998
Pages (from-to)1378-1388
Journal / PublicationIEEE Transactions on Medical Imaging
Volume27
Issue number10
Publication statusPublished - Oct 2008
Externally publishedYes

Abstract

Atherosclerosis at the carotid bifurcation resulting in cerebral emboli is a major cause of ischemic stroke. Most strokes associated with carotid atherosclerosis can be prevented by lifestyle/dietary changes and pharmacological treatments if identified early by monitoring carotid plaque changes. Registration of 3-D ultrasound (US) images of carotid plaque obtained at different time points is essential for sensitive monitoring of plaque changes in volume and surface morphology. This registration technique should be nonrigid, since different head positions during image acquisition sessions cause relative bending and torsion in the neck, producing nonlinear deformations between the images. We modeled the movement of the neck using a "twisting and bending" model with only six parameters for nonrigid registration. We evaluated the algorithm using 3-D US carotid images acquired at two different head positions to simulate images acquired at different times. We calculated the mean registration error (MRE) between the segmented vessel surfaces in the target image and the registered image using a distance-based error metric after applying our "twisting and bending" model-based nonrigid registration algorithm. We achieved an average registration error of 0.80 ± 0.26 mm using our nonrigid registration technique, which was a significant improvement in registration accuracy over rigid registration, even with reduced degrees-of-freedom compared to the other nonrigid registration algorithms. © 2008 IEEE.

Research Area(s)

  • Carotid artery plaque, Image registration, Ultrasound imaging

Citation Format(s)

A "Twisting and bending" model-based nonrigid image registration technique for 3-D ultrasound carotid images. / Nanayakkara, Nuwan D.; Chiu, Bernard; Samani, Abbas; Spence, J. David; Samarabandu, Jagath; Fenster, Aaron.

In: IEEE Transactions on Medical Imaging, Vol. 27, No. 10, 4448998, 10.2008, p. 1378-1388.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review