TY - GEN
T1 - Visualization of microvascular that assumes an ultra-high field MRI with high precision frequency analysis
AU - Hasegawa, Masaya
AU - Hirobayashi, Shigeki
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/7/12
Y1 - 2017/7/12
N2 - In recent years, with the development of medical equipment technology, tomograms have become important. As for Magnetic Resonance Imaging (MRI) in particular, study of the device that provides a tomographic image has become active. One technique to visualize blood vessels using MRI is called Magnetic Resonance Angiography (MRA). Fast Fourier transform (FFT) is used for analysis of the MRI, and the resolution of the FFT depends on the magnetic field strength. We focused on Non-harmonic Analysis (NHA). NHA has a frequency resolution that is much higher than FFT. Therefore, there is possibility that NHA can be visualized microstructure measured by ultra-high field MRI. In the experiment, we investigated the resolution of NHA by computer simulation. From the results, the FFT could not to express an original phantom, owing to the lack of resolution. On the other hand, NHA was able to exactly express an observation object and greatly reduce the occurrence of side lobes.
AB - In recent years, with the development of medical equipment technology, tomograms have become important. As for Magnetic Resonance Imaging (MRI) in particular, study of the device that provides a tomographic image has become active. One technique to visualize blood vessels using MRI is called Magnetic Resonance Angiography (MRA). Fast Fourier transform (FFT) is used for analysis of the MRI, and the resolution of the FFT depends on the magnetic field strength. We focused on Non-harmonic Analysis (NHA). NHA has a frequency resolution that is much higher than FFT. Therefore, there is possibility that NHA can be visualized microstructure measured by ultra-high field MRI. In the experiment, we investigated the resolution of NHA by computer simulation. From the results, the FFT could not to express an original phantom, owing to the lack of resolution. On the other hand, NHA was able to exactly express an observation object and greatly reduce the occurrence of side lobes.
KW - High resolution
KW - Magnetic resonance angiography
KW - Ultra-high magnetic field
UR - http://www.scopus.com/inward/record.url?scp=85027676539&partnerID=8YFLogxK
U2 - 10.1109/ITME.2016.0085
DO - 10.1109/ITME.2016.0085
M3 - 会議への寄与
AN - SCOPUS:85027676539
T3 - Proceedings - 2016 8th International Conference on Information Technology in Medicine and Education, ITME 2016
SP - 350
EP - 354
BT - Proceedings - 2016 8th International Conference on Information Technology in Medicine and Education, ITME 2016
A2 - Dai, Ying
A2 - Li, Shaozi
A2 - Cheng, Yun
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Information Technology in Medicine and Education, ITME 2016
Y2 - 23 December 2016 through 25 December 2016
ER -