TY - GEN
T1 - Development of high-resolution intraluminal and intravascular MRI probe using microfabrication on cylindrical substrates
AU - Goto, S.
AU - Matsunaga, T.
AU - Matsuoka, Y.
AU - Kuroda, K.
AU - Esashi, M.
AU - Haga, Y.
PY - 2007
Y1 - 2007
N2 - The objective of this study is development of high-resolution intraluminal and intravascular MRI probe using microfabrication on cylindrical substrates. MRI holds promise for in vivo characterization due to its potential for obtaining high-resolution images and its sensitivity to the compositional characteristics of lesion. By placing a receive coil in the human body, NMR signals from the tissue surrounding the coil can be detected sensitively and the method enables in vivo high-resolution imaging (high spatial resolution and high spectroscopic resolution). The preferable receive coil has homogeneous RF receptivity around the probe and high-SNR. Novel coil designs and/or multi-coil have capabilities to meet these demands. To connect the tuning/matching circuit and amplifier circuit near the coil is needed to improve SNR of the system. Microfabrication on cylindrical substrate is one of methods for fabricating arbitrary coil pattern and the tuning/matching circuit on the tube with small diameters. Using a maskless lithography technique, solenoid coil, tilted coil and saddle shaped coil have been fabricated on glass tube with 2 mm O.D.. Imaging test of the coils were performed on 3 T MRI in a 2 % agar phantom.
AB - The objective of this study is development of high-resolution intraluminal and intravascular MRI probe using microfabrication on cylindrical substrates. MRI holds promise for in vivo characterization due to its potential for obtaining high-resolution images and its sensitivity to the compositional characteristics of lesion. By placing a receive coil in the human body, NMR signals from the tissue surrounding the coil can be detected sensitively and the method enables in vivo high-resolution imaging (high spatial resolution and high spectroscopic resolution). The preferable receive coil has homogeneous RF receptivity around the probe and high-SNR. Novel coil designs and/or multi-coil have capabilities to meet these demands. To connect the tuning/matching circuit and amplifier circuit near the coil is needed to improve SNR of the system. Microfabrication on cylindrical substrate is one of methods for fabricating arbitrary coil pattern and the tuning/matching circuit on the tube with small diameters. Using a maskless lithography technique, solenoid coil, tilted coil and saddle shaped coil have been fabricated on glass tube with 2 mm O.D.. Imaging test of the coils were performed on 3 T MRI in a 2 % agar phantom.
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U2 - 10.1109/memsys.2007.4433065
DO - 10.1109/memsys.2007.4433065
M3 - Conference contribution
AN - SCOPUS:52249119675
SN - 1424409519
SN - 9781424409518
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 329
EP - 332
BT - Proceedings - CIS Workshops 2007, 2007 International Conference on Computational Intelligence and Security Workshops, CISW 2007
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2007
Y2 - 21 January 2007 through 25 January 2007
ER -