TY - GEN
T1 - System calibration unit for magnetic particle imaging
T2 - 2013 International Workshop on Magnetic Particle Imaging, IWMPI 2013
AU - Halkola, A.
AU - Rahmer, J.
AU - Gleich, B.
AU - Borgert, J.
AU - Buzug, T.
PY - 2013
Y1 - 2013
N2 - Figure 3 shows a comparison between the spatial patterns of the real components the system matrix obtained with the SCU (top) and the M3 (bottom) at 3 frequencies. The SCU system matrix has been corrected using the calibration data shown in figure 2. The grey scale levels used for the SCU and the M3 are the same. The differences in all studied cases are within the noise level. A clear improvement in signal to noise ratio can be seen. At the generated harmonics the improvement is roughly a factor of 5, translating to factor 25 in measurement time. In figure 4 a comparison between images reconstructed with the SCU (left) and M3 (right) system matrix are shown. The phantom (shown as green circles) consists of 4 holes with diameters of 1 mm separated by 2 mm, 3 mm, and 4 mm filled with pure Resovist®. The image reconstructed with the SCU system matrix shows lower noise and higher spatial resolution when compared to the image reconstructed with the M3 system matrix.
AB - Figure 3 shows a comparison between the spatial patterns of the real components the system matrix obtained with the SCU (top) and the M3 (bottom) at 3 frequencies. The SCU system matrix has been corrected using the calibration data shown in figure 2. The grey scale levels used for the SCU and the M3 are the same. The differences in all studied cases are within the noise level. A clear improvement in signal to noise ratio can be seen. At the generated harmonics the improvement is roughly a factor of 5, translating to factor 25 in measurement time. In figure 4 a comparison between images reconstructed with the SCU (left) and M3 (right) system matrix are shown. The phantom (shown as green circles) consists of 4 holes with diameters of 1 mm separated by 2 mm, 3 mm, and 4 mm filled with pure Resovist®. The image reconstructed with the SCU system matrix shows lower noise and higher spatial resolution when compared to the image reconstructed with the M3 system matrix.
UR - http://www.scopus.com/inward/record.url?scp=84881016863&partnerID=8YFLogxK
U2 - 10.1109/IWMPI.2013.6528344
DO - 10.1109/IWMPI.2013.6528344
M3 - Conference contribution
AN - SCOPUS:84881016863
SN - 9781467355223
T3 - 2013 International Workshop on Magnetic Particle Imaging, IWMPI 2013
BT - 2013 International Workshop on Magnetic Particle Imaging, IWMPI 2013
Y2 - 23 March 2013 through 24 March 2013
ER -