CT and MR Imaging Analysis of Calcification Suspensions of Different Types and Concentrations
Journal of the Korean Neurological Association
;
: 158-162, 2009.
Article
in Korean
| WPRIM
| ID: wpr-103698
ABSTRACT
BACKGROUND:
High-density calcifications on CT images can appear as high signals on T1-weighted MR images, but with differing extents and degrees. This study investigated CT and MR images of calcifications of various types and concentrations.METHODS:
We analyzed CT and MR images of two cases of bilateral basal ganglia calcifications and experimental suspensions of calcifications of different types and concentrations.RESULTS:
The density of CT calcifications increased in proportion to their concentration regardless of their type. However, the MR signals differed with the types and concentrations of calcification. A high signal was one of the most noticeable signs on T1-weighted MR images for calcium phosphate, and it increased for concentrations up to 0.2 g/mL before leveling off. The signal for all types of calcification decreased on T2-weighted and especially fluid-attenuated inversion recovery (FLAIR) images.CONCLUSIONS:
High signals are characteristic of calcification on T1-weighted MR images, and are often stronger than those on CT images. A low signal appears consistently on FLAIR MR images regardless of the calcification type. These findings might be helpful in evaluating calcifications apparent in MR images.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Suspensions
/
Basal Ganglia
/
Brain
/
Calcium Phosphates
/
Magnetic Resonance Spectroscopy
/
Calcium
Language:
Korean
Journal:
Journal of the Korean Neurological Association
Year:
2009
Type:
Article
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