DocumentCode :
139856
Title :
Effects of densely sampled dipole field on quantitative susceptibility mapping
Author :
Umemoto, Yuya ; Murashima, Mai ; Ueno, Tomohiro ; Sugimoto, Naozo
Author_Institution :
Grad. Sch. of Med., Kyoto Univ., Kyoto, Japan
fYear :
2014
fDate :
26-30 Aug. 2014
Firstpage :
2352
Lastpage :
2355
Abstract :
We present a method of resolving a fine structure in a magnetic susceptibility map, which cannot be distinguished by the conventional method, by using a densely sampled dipole field and by expanding a magnetic field perturbation map. We investigate effects of a sampling density of the dipole field on the spatial resolution and on obtained susceptibility values. When the sampling density is increased, a shape of an otherwise undistinguishable fine structure recovers gradually in an obtained susceptibility map. Furthermore, a peak susceptibility value of the fine structure is slowly getting closer to the correct values.
Keywords :
biomedical MRI; fine structure; image resolution; magnetic fields; magnetic susceptibility; densely sampled dipole field; fine structure; magnetic field perturbation map; magnetic susceptibility; quantitative susceptibility mapping; Educational institutions; Iron; Magnetic field measurement; Magnetic fields; Magnetic resonance imaging; Magnetic susceptibility; Spatial resolution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2014.6944093
Filename :
6944093
Link To Document :
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