Correlation between CT and diffusion-weighted imaging of @entity2806 in a XXXX model.

@entity432 @entity35 @entity2806 @entity63
BACKGROUND AND PURPOSE: The quantitative temporal relationship between changes in CT attenuation, ADC value, and DWI signal intensity of acute @entity63 tissue has not yet been determined in an animal model. This study was performed to determine the temporal relationship between CT attenuation, ADC value, and DWI signal intensity in @entity2806 . MATERIALS AND METHODS: CT and DWI were performed at 1, 3, 5, 7, and 9 hours after @entity432 in 11 @entity35 . Mean values for CT attenuation, ADC, and DWI signal intensity were determined for the @entity63 hemisphere and contralateral normal hemisphere. Temporal changes in each mean value and the relationship between CT attenuation and ADC value and DWI signal intensity were evaluated. RESULTS: The decrease of CT attenuation and the increase of DWI signal intensity occurred gradually after @entity432 , while ADC value decreased rapidly at 1 hour. Although correlation was significant between time and rCT or rDWI (P<.01, respectively), no correlation between time and rADC was found (P=.33). There was a significant linear correlation between rCT and rDWI (r=0.497, P<.01), but no significant correlation between rCT and rADC (P=.509) was found. CONCLUSIONS: The temporal change in CT attenuation was different from that in ADC value with no significant linear correlation between CT attenuation and ADC value for @entity2806 . However, rCT and rDWI showed a modest correlation.
