Real time 2D to 3D registration for ultrasound-guided endoscopic procedures

R. San Jose Estepar, C.-F. Westin, Kirby G. Vosburgh
International Journal of Computer Assisted Radiology and Surgery
Volume 3, Number Supplement 1, Pages S108-S109
2008

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Abstract

This paper presents a real time registration method for preoperative CT and endoscopic US to support endoscopic and laparoscopic interventions. We propose a new method, named LEPART, based on Phase Correlation (PC). Traditional PC cannot be directly applied to our problem due to: 1) different phase spectra content between the signals to registered and 2) different signal dimensionality (our problem is a 2D-to–3D registration). LEPART (Low-pass spEctral Phase correlAtion with HaRmonic selecTion) tries to overcomes these limitations by processing the signal in three stages. The adequacy and accuracy of the proposed method for endoscopic and laparoscopic surgery has been validated by means of an abdominal ultrasound phantom. LEPART achieves a registration whose mean error is in the 1 mm range and may be a robust approach to multimodality image registration.

Reference

San Jose Estepar R, Westin CF, Vosburgh KG. Real time 2d to 3d registration for ultrasound-guided endoscopic procedures. International Journal of Computer Assisted Radiology and Surgery 2008;3(Supplement 1):S108-S109.

Bibtex entry

@Article{sanjoseCARS08,
  author         = {Raul {San Jose Estepar} and Carl-Fredrik Westin and Kirby  
                   G. Vosburgh},                                               
  title          = {Real time 2D to 3D registration for ultrasound-guided      
                   endoscopic procedures},                                     
  journal        = {International Journal of Computer Assisted Radiology and   
                   Surgery},                                                   
  year           = {2008},                                                     
  volume         = {3},                                                        
  number         = {Supplement 1},                                             
  pages          = {S108--S109}
}