Optical Coherence Tomography Angiography in Healthy Adult Subjects: Normative Values, Frequency, and Impact of Artifacts

Table 3

Comparison of image characteristics with and without artifacts.

	Presence of artifact						value
	No			Yes
	Count	Mean	Standard deviation	Count	Mean	Standard deviation
Laterality
Left	49 (50.5%)			42 (50%)
Right	48 (49.5%)			42 (50%)
Age		49.06	9.30		52.48	11.79	0.03
Gender
Male	61 (62.9)			53 (63.1%)
Female	36 (37.1%)			31 (36.9%)
Image quality		64.41	4.28		58.82	7.98	<0.001
Central vascular density		16.60	4.36		22.62	12.13	<0.001
Central macular thickness (μm)		237.71	22.91		235.81	27.47	0.62
Choroidal thickness (μm)		257.73	77.03		256.11	70.53	0.89
Superior vascular density		49.14	3.53		48.17	7.63	0.30
Nasal vascular density		46.50	4.63		45.38	4.84	0.12
Inferior vascular density		48.81	4.33		46.09	5.60	<0.001
Temporal vascular density		45.87	5.17		44.58	5.98	0.13