Title :
Image analysis of left ventricle wall motion by MRI tagging
Author :
Yamamoto, Hideki ; Sano, Tetsuya ; Morito, Tsuneharu ; Hiraki, Yoshio
Author_Institution :
Fac. of Educ., Okayama Univ., Japan
Abstract :
We have developed a left-ventricular (LV) wall motion analysis method and a display method of the LV wall motion. To know the precise wall motion, such as its rotation or deformity, identifiable landmarks must be located on the heart. MRI tagging makes it possible to estimate the regional wall motion non-invasively. Tagging is achieved by the selective saturation pulse method. We tried to estimate the precise LV wall motion by MRI tagging. The difference in the signal intensity between the tagged and non-tagged regions persisted for 400-700 ms. We displayed the tag-point movement of the LV wall as an animation
Keywords :
biomedical MRI; cardiology; computer animation; medical image processing; motion estimation; 400 to 700 ms; MRI tagging; animation; deformity; display method; heart; identifiable landmarks; image analysis; left ventricle wall motion; motion analysis method; noninvasive regional wall motion estimation; nontagged regions; rotation; selective saturation pulse method; signal intensity difference; tag-point movement; Animation; Biomedical imaging; Displays; Heart; Image motion analysis; Image processing; Magnetic resonance imaging; Motion analysis; Motion estimation; Tagging;
Conference_Titel :
Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, International Workshop on, 2001.
Conference_Location :
Crimea
Print_ISBN :
0-7803-7164-X
DOI :
10.1109/IDAACS.2001.941987
