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Application of anatomically shaped surface coils in MRI at 0.5 T

✍ Scribed by J. Doornbos; H. A. A. Grimbergen; P. E. Booijen; L. te Strake; J. L. Bloem; G. J. Vielvoye; E. Boskamp


Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
697 KB
Volume
3
Category
Article
ISSN
0740-3194

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✦ Synopsis


The construction and application of eight different MRI surface coils is described. The coils consist of an anatomically shaped copper wire loop as an antenna and a printed circuit board containing electronic components for tuning and matching. The electronic device for tuning and matching is interchangeable between the various coils. Surface coils for signal detection yield images with high signal-to-noise ratio in comparison to the usual saddle-shaped head or body coils. The sensitivity of a surface coil decreases with increasing distance between the coil and the object of interest and therefore the coils are constructed to fit the anatomical structure under examination as well as possible. The application of dedicated surface coils for superficial structures in the body extends the possibilities of the MRI system. Photographs of the coils positioned on the body and MR images of volunteers and patients are shown.


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