RT Journal Article
ID 3c60c7e34f046ceb
A1 Zhu, Minhua 
A1 Xia, Ling
A1 Liu, Feng 
T1 Unconventional Gradient Coil Designs in Magnetic Resonance Imaging
JF Critical Reviews™ in Biomedical Engineering
JO CRB
YR 2014
FD 2015-02-06
VO 42
IS 6
SP 493
OP 526
K1 MRI
K1 unconventional gradient coil designs
K1 local gradient coil
K1 head gradient coil
K1 PNS
K1 split gradient coil
K1 3D gradient coil.
AB In magnetic resonance imaging (MRI), the gradient coils are used to encode the spatial positions of protons by varying the magnetic field linearly across the imaging subject. With the latest development of MRI technique and new clinical and research applications, the gradient coil system requires increasingly innovative designs. In this paper, four unconventional gradient coil designs are reviewed: (1) local gradient coils; (2) new coil configurations with reduced peripheral nerve stimulation (PNS); (3) dedicated structures designed for hybrid systems (combining MRI with other medical devices); and (4) the full 3D coil designs. For the first type, the development of local gradient coils (mainly head coils) is discussed chronologically and divided into three stages: the "golden" stage in the 1990s, the "wane" stage in the 2000s, and the "revival" stage in the 2010s. For the second type, various designs for the reduction of PNS problems have been described, including local and whole-body gradient coil systems. For the third design, a dedicated gradient coil design for multi-modality combination is illustrated with an MRI-LINAC system. Finally, gradient systems with non-layered coil structure are described in the fourth design type. We hope that this review on unconventional gradient coil designs will be useful for the new development of MRI technology and emerging medical applications.
PB Begell House
LK https://www.dl.begellhouse.com/journals/4b27cbfc562e21b8,30efb37f17026d27,3c60c7e34f046ceb.html