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Magnetic resonance demonstration of hyperintense herniated discs and extruded disc fragments

✍ Scribed by Marc F. Glickstein; D. Lawrence Burke; Herbert Y. Kressel

Publisher
Springer
Year
1989
Tongue
English
Weight
815 KB
Volume
18
Category
Article
ISSN
0364-2348

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✦ Synopsis

Magnetic resonance (MR) imaging is useful in evaluating a variety of spinal pathologies including intervertebral disc disease. Herniated discs are commonly believed to undergo premature degeneration and produce low imensity signal on T2-weighted images. We reviewed 154 patients who were studied for disc herniations or other pathology. Fifty-nine (38%) had disc herniations and 7 of these (5%) had a fragment that was hyperintense with respect to the adjace.nt intervertebral disc on T2-weighted images. It is hypothesized that some disc fragments may contain a higher water content that causes prolongation of the T2 signal. The bright signal which is therefore seen on long TR long TE (T2-weighted) images may be a useful sign suggesting herniation or extrusion.

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