A RANDO® phantom was scanned with eight CBCT scanners (11 modes). 
RANDO
To investigate the accuracy of linear measurements from multiple cone beam computed tomography (CBCT) devices.


 A RANDO® phantom was scanned with eight CBCT scanners (11 modes).  Slightly more values were underestimated than overestimated (41 of 66 measurements, 7 out of 11 CBCT modes).  Treatment planning from large-volume CBCT was found to be reliable in all except one of the investigated scanners.  New CBCT scanners should always be tested for geometric accuracy.
CBCT
ANOVA with Scheffé post hoc analysis and intraclass correlation coefficient (ICC) were utilized for statistical analyses. 
ANOV A
ANOVA with Scheffé post hoc analysis and intraclass correlation coefficient (ICC) were utilized for statistical analyses. 
Scheffé post hoc analysis
ANOVA with Scheffé post hoc analysis and intraclass correlation coefficient (ICC) were utilized for statistical analyses. 
intraclass correlation coefficient (ICC)