Title :
High resolution MR image of brain with signal attenuation of gray matter
Author :
Saha, Somojit ; Das, Sarit Kumar ; Kar, Avijit
Author_Institution :
Dept. of CSE, Jadavpur Univ., Kolkata, India
Abstract :
A novel MR image acquisition protocol has been presented in order to obtain high resolution image of the brain at acquisition time. For better delineation of the substructures of the brain we have emphasized enhancing the intensity difference between white and gray matters in the reconstructed MR image of the brain. The mathematical basis of the protocol stems from the T1 weighting combined with an attempt of exploitation of the signal nulling effect. The protocol has been finalized for 1.5 tesla field strength and tested with multiple subjects. The results consistently show brilliant contrast between white and gray matters. These images are further evaluated subjectively as well as objectively to test the potentiality of the protocol to produce high contrast images over the conventional acquisition protocol.
Keywords :
biomedical MRI; brain; data acquisition; image reconstruction; image resolution; mathematical analysis; medical image processing; T1 weighting; brain; gray matter; high-resolution MR image; image acquisition protocol; image reconstruction; magnetic flux density 1.5 T; mathematical basis; signal attenuation; signal nulling effect; white matter; Attenuation; Image analysis; Image processing; Image resolution; Image segmentation; Magnetic resonance imaging; Mechanical engineering; Protocols; Signal resolution; Testing; MR image; inversion recovery; signal nulling effect;
Conference_Titel :
Imaging Systems and Techniques (IST), 2010 IEEE International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-6492-0
DOI :
10.1109/IST.2010.5548458