Title :
Numerical simulations of edge detection effect due to chemical shift variation in intermolecular multiple-quantum coherence MRI
Author :
Sun, Huijun ; Lin, Tao ; Chen, Song ; Chen, Zhong
Author_Institution :
Dept. of Phys., Xiamen Univ., Xiamen
Abstract :
Combined with the theories of intermolecular multiple-quantum coherences (iMQCs) and distant dipolar field (DDF) effect, edge detection effect due to chemical shift variation in magnetic resonance imaging (MRI) was simulated and discussed deeply using an efficient numerical algorithm based on the nonlinear Bloch equations. Simulation results show that, different from the conventional MRI signal, chemical shift in iMQC MRI can provide new imaging information, an edge detection method to search regions containing spins with chemical shift offset. The edge detection method can present plentiful information about various kinds of edges of object regions.
Keywords :
biomedical MRI; edge detection; nonlinear equations; numerical analysis; quantum computing; chemical shift variation; distant dipolar field effect; edge detection; intermolecular multiple-quantum coherence MRI; magnetic resonance imaging; nonlinear Bloch equations; numerical algorithm; numerical simulations; Biomedical imaging; Chemical engineering; Encoding; Frequency; High-resolution imaging; Image edge detection; Magnetic resonance imaging; Numerical simulation; Physics education; Tellurium;
Conference_Titel :
IT in Medicine and Education, 2008. ITME 2008. IEEE International Symposium on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-3616-3
Electronic_ISBN :
978-1-4244-2511-2
DOI :
10.1109/ITME.2008.4743926
