Title :
Non-Rigid Registration of Multidetector CT Images for Pulmonal Tissue Elasticity Imaging
Author :
Yanagida, Yosuke ; Kobashi, Syoji ; Kondo, Katsuya ; Hata, Yutaka
Author_Institution :
Hyogo Univ., Hyogo
Abstract :
Elasticity imaging is a new approach to diagnose the state of tissues in vivo. Almost of elasticity imaging methods have been studied using ultrasound. However, such ultrasound systems can not be applied to the pulmonal tissues because the lung is fulfilled with air and almost power of ultrasound is reflected at the boundary of the lung. This paper proposes a novel tissue elasticity imaging method using multiderector computed tomography (MDCT). The present method estimates the elasticity based on image registration between the inspiratory MDCT images and the expiratory MDCT images of the same subject. Use of the elasticity imaging for the lung will be a powerful tool for diagnosing the lung emphysema, the breast cancer or the other pulmonal diseases that cause the change of elasticity.
Keywords :
biological tissues; cancer; computerised tomography; image registration; medical image processing; breast cancer; elasticity imaging methods; image registration; lung emphysema diagnosis; multiderector computed tomography; multidetector CT images; nonrigid registration; pulmonal tissues; tissues in vivo; ultrasound systems; Automation; Biomedical imaging; Computed tomography; Diseases; Elasticity; Frequency estimation; Image registration; Lungs; Surface morphology; Ultrasonic imaging; Medical Imaging; Multidetector-row computed tomography; Non-rigid Registration; Tissue elasticity imaging;
Conference_Titel :
Automation Congress, 2006. WAC '06. World
Conference_Location :
Budapest
Print_ISBN :
1-889335-33-9
DOI :
10.1109/WAC.2006.375935