Document Detail

Calcification demonstrated as high signal intensity on T1-weighted MR images of the disks of the lumbar spine.
MedLine Citation:
PMID:  8210379     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To report that calcification of lumbar disks may not show the usual low signal intensity on T1-weighted magnetic resonance (MR) images. MATERIALS AND METHODS: The authors present five cases of high signal intensity on T1-weighted MR images of a lumbar disk that reflect the presence of calcium deposition. RESULTS: In four cases there was conventional radiographic confirmation and in one case there was computed tomographic confirmation of the disk calcification, which corresponded to the high signal intensity seen on the MR studies. One patient had undergone surgical removal of a partially calcified protruding disk. CONCLUSION: Lumbar disk calcification can vary in signal intensity from low to high on T1-weighted MR images.
N M Major; C A Helms; H K Genant
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Radiology     Volume:  189     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1993 Nov 
Date Detail:
Created Date:  1993-11-18     Completed Date:  1993-11-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  494-6     Citation Subset:  AIM; IM; S    
Department of Radiology, University of California, San Francisco 94143.
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MeSH Terms
Aged, 80 and over
Calcinosis / diagnosis,  radiography
Intervertebral Disk / pathology*,  radiography
Intervertebral Disk Displacement / diagnosis,  radiography
Low Back Pain / diagnosis,  radiography
Lumbar Vertebrae / pathology*,  radiography
Magnetic Resonance Imaging* / methods
Middle Aged
Spinal Diseases / diagnosis*,  radiography
Tomography, X-Ray Computed

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