Registration of Magnetic Resonance and Ultrasound Images based on Pseudo-ultrasound and Mutual Information
LI Tingting
CHEN Chunxiao
ZHANG Qian
Abstract：The registration of intra-operative ultrasound (US)and pre-operative magnetic resonance (MR)data is very impor-tant in surgical navigation.A novel registration method of MR and US based on their imaging theories was presented.The proposed method employed pseudo-ultrasound derived from MR data and mutual information to implement the registration of two modal images. Additionally,multi-resolution analysis and Powell algorithm were also used in the searching of the largest mutual information,which were effective to reduce the probability of falling into local minima while improved the registration accuracy.The experimental results show that the proposed registration method has higher accuracy than that of mark point method which is widely used in the current surgi-cal navigation system.
Keywords：Pseudo-ultrasoundIntra-operative ultrasoundRegistrationMagnetic resonanceMutual information
Publication Date：2014-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：5( 71-75 )