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Boundary artifact in inversion-recovery images

✍ Scribed by R. T. Droege; S. M. Adamczak

Book ID
102526602
Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
421 KB
Volume
3
Category
Article
ISSN
0740-3194

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✦ Synopsis

Modulus reconstruction of inversion-recovery images causes a pixel value to be assigned the absolute magnitude of the signal amplitude. Consequently, contrast between tissues is reduced if they have amplitudes of opposite sign. When contrast is reduced between adjacent tissues, dark line artifacts are created at the tissue boundaries. The artifacts may enable tissues to be spatially distinguished even if there is no contrast between them. However, the artifacts may lead to misinterpretation of the image since they may be difficult to distinguish from real anatomical structures.

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