Optic nerve sheath diameter on computed tomography is correlated with simultaneously measured @entity428 in @entity1 with severe XXXX .

@entity1 @entity131 @entity428 @entity772 @entity1781
PURPOSE: Assess the relationship between @entity1781 ( @entity1781 ) measured on bedside portable computed tomography (CT) scans and simultaneously measured @entity428 ( @entity428 ) in @entity1 with severe @entity131 . METHODS: Retrospective cohort study of 57 @entity1 admitted between 2009 and 2013. Linear and logistic regression were used to model the correlation and discrimination between @entity1781 and @entity428 or @entity428 , respectively. RESULTS: The cohort had a mean age of 40 years (SD 16) and a median admission Glasgow @entity772 score of 7 (IQR 4-10). The between-rater agreement by intraclass coefficient was 0.89 (95 % CI 0.83-0.93, P < 0.001). The mean @entity1781 was 6.7 mm (SD 0.75) and the mean @entity428 during CT was 21.3 mmHg (SD 8.4). Using linear regression, there was a strong correlation between @entity428 and @entity1781 (r = 0.74, P < 0.001). @entity1781 had an area under the curve to discriminate @entity428 (>= 20 mmHg vs. <20 mmHg) of 0.83 (95 % CI 0.73-0.94). Using a cutoff of 6.0 mm, @entity1781 had a sensitivity of 97 %, specificity of 42 %, positive predictive value of 67 %, and a negative predictive value of 92 %. Comparing linear regression models, @entity1781 was a much stronger predictor of @entity428 (R(2) of 0.56) compared to other CT features (R(2) of 0.21). CONCLUSIONS: Simultaneous measurement of @entity1781 on CT and @entity428 were strongly correlated and @entity1781 was discriminative for @entity428 . @entity1781 was much more predictive of @entity428 than other CT features. There was excellent agreement between raters in measuring @entity1781 .
