Effect of patient anxiety on image motion artefacts in CBCT

BMC Oral Health

Table 4 Presence of motion artefacts related to FOV, acquisition time, and anatomical area

MA	FOV* (cm)						Acquisition time^β (sec)		Anatomical area^π
MA	5 × 5	5 × 8	Double 5 × 5	Double 5 × 8	Triple 5 × 5	Triple 5 × 8	Mean	SD	Jaws	TMJ
+	(n = 2) 15.4%	(n = 1) 4.3%	(n = 0) 0.0%	(n = 2) 6.5%	(n = 0) 0%	(n = 1) 5.9%	20.274	10.055	(n = 6) 7.5%	(n = 0) 0%
-	(n = 11) 84.6%	(n = 22) 95.7%	(n = 4) 100%	(n = 29) 93.5%	(n = 12) 100%	(n = 16) 94.1%	23.739	9.963	(n = 74) 92.5%	(n = 20) 100%
	95% confidence intervals				Lower		−5.427
	95% confidence intervals				Upper		11.707

Bootstrap Sampling Method = Simple, Bootstrap number of samples = 1000, 95% confidence intervals
* χ2 = 3.124, p = 0.673 > 0.05, ^βMann-Whitney U = 223, p = 0.392 > 0.05, ^π Fisher’s p value = 0.597 > 0.05
MA motion artefact, + present, − absent, FOV field of view, Double two horizontal stitched volumes, Triple three horizontal stitched volumes, n noun, SD standard deviation, TMJ temporomandibular joint

ISSN: 1472-6831