Real-time gating of IVUS sequences based on motion blur analysis: method and quantitative validation

Authors:
Carlo Gatta;Simone Balocco;Francesco Ciompi;Rayyan Hemetsberger;Oriol Rodriguez Leor;Petia Radeva
Affiliations:
Dept. Matemtica Aplicada i Anlisi, Universitat de Barcelona, Barcelona, Spain and Centre de Visió per Computador, Bellaterra, Spain;Centre de Visió per Computador, Bellaterra, Spain;Centre de Visió per Computador, Bellaterra, Spain;Unitat d'hemodinàmica cardìaca hospital universitari Germans Trias i Pujol Badalona, Spain;Unitat d'hemodinàmica cardìaca hospital universitari Germans Trias i Pujol Badalona, Spain;Centre de Visió per Computador, Bellaterra, Spain
Venue:
MICCAI'10 Proceedings of the 13th international conference on Medical image computing and computer-assisted intervention: Part II
Year:
2010

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Abstract

Intravascular Ultrasound (IVUS) is an image-guiding technique for cardiovascular diagnostic, providing cross-sectional images of vessels. During the acquisition, the catheter is pulled back (pullback) at a constant speed in order to acquire spatially subsequent images of the artery. However, during this procedure, the heart twist produces a swinging fluctuation of the probe position along the vessel axis. In this paper we propose a real-time gating algorithm based on the analysis of motion blur variations during the IVUS sequence. Quantitative tests performed on an in-vitro ground truth data base shown that our method is superior to state of the art algorithms both in computational speed and accuracy.