Title :
MRI Image Enhancement By PROPELLER Data Fusion
Author :
Malczewski, Krzysztof
Author_Institution :
Dept. of Electron. & Telecommun., Poznan Univ. of Technol., Poznan
Abstract :
The MRI image reconstruction supported by Toeplitz- based iterative super-resolution algorithm is presented in the paper. It is shown that the approach improves MRI spatial resolution in cases when multi-blade sequences are used. The PROPELLER MRI method collects data from rectangular regions (blades) rotated around the origin of the k-space. Inter-blade patient motion is the premise for the use of super-resolution technique. Images obtained from sets of irregularly located frequency domain samples are combined into the high resolution MRI image. The super-resolution reconstruction replaces usually applied direct averaging of low- resolution images. Furthermore high order affine motion model has been applied.
Keywords :
biomedical MRI; image enhancement; image reconstruction; image resolution; image sequences; iterative methods; medical image processing; sensor fusion; MRI image enhancement; PROPELLER data fusion; Toeplitz-iterative super-resolution algorithm; image reconstruction; inter-blade patient motion; k-space; multiblade sequence; spatial resolution; Image enhancement; Image reconstruction; Image resolution; Iterative algorithms; Magnetic resonance imaging; Propellers; Signal resolution; Spatial resolution; Strips; Strontium; MRI; image reconstruction; super-resolution;
Conference_Titel :
Medical Measurements and Applications, 2008. MeMeA 2008. IEEE International Workshop on
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4244-1937-1
Electronic_ISBN :
978-1-4244-1938-8
DOI :
10.1109/MEMEA.2008.4542992
