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- W2011139721 abstract "To investigate the intra- and interobserver variability of computed tomography-based volume measurements of laryngeal tumors.The volume of 13 laryngeal tumors was repeatedly measured by five independent observers in four different sessions, using the summation-of-areas technique. Mean tumor volume and its standard deviation were calculated for each tumor. Statistical analysis was done with analysis of variance, Spearman rank correlation, and linear regression.Both the effect of the observers (p < 0.0001) and the effect of the session (p < 0.01) on tumor volume was statistically significant. Interobserver variability was the most important component of total variability (89.3%). A significant rank correlation was found between mean volume and standard deviation (p < 0.01); the relationship between mean tumor volume and standard deviation can be described using linear regression [standard deviation = 0.28 volume + 0.35 (R = 0.79)].Total variability in the computed tomography-based measurement of laryngeal tumor volume can be reduced by having the measurements done by a single trained observer." @default.
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- W2011139721 date "1998-02-01" @default.
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- W2011139721 title "Laryngeal tumor volume measurements determined with CT: A study on intra- and interobserver variability" @default.
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- W2011139721 doi "https://doi.org/10.1016/s0360-3016(97)00853-5" @default.
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