Title :
Dual mode registration to improve estimation of perfusion parameters for ultrasound image sequences
Author :
Bouhlel, Nizar ; Bridal, Lori ; Coron, Alain
Author_Institution :
Lab. U2S, Univ. Tunis El Manar, Tunis, Tunisia
Abstract :
The aim of this study is to present a new method for automatic motion compensation for ultrasound contrast imaging and to assess the impact on parametric perfusion imaging using linearized log-compressed data. Linear and non-linear ultrasound imaging are used for registration instead of one modality. The perfusion parameters estimated from the analysis of the time motion-compensated sequences of the contrast images show a great improvement in accuracy compared to the results obtained on uncompensated sequences and compensated sequences by linear images alone.
Keywords :
image registration; image sequences; log normal distribution; motion compensation; parameter estimation; ultrasonic imaging; automatic motion compensation; dual mode registration; linearized log-compressed data; nonlinear ultrasound imaging; parametric perfusion imaging; perfusion parameter estimation; perfusion parameters; ultrasound contrast imaging; ultrasound image sequences; Blood; Cost function; Image registration; Imaging; Indexes; Motion compensation; Ultrasonic imaging; motion-compensation; parametric perfusion imaging; ultrasound contrast imaging;
Conference_Titel :
Signal Processing Conference (EUSIPCO), 2013 Proceedings of the 21st European
Conference_Location :
Marrakech
