Impact of Carotid Endarterectomy on Choroidal Thickness and Volume in Enhanced Depth Optical Coherence Tomography Imaging

Table 1

Choroidal thickness and volume values and variations before and after carotid artery endarterectomy in the EIE group.

Localization	EIE group
	Baseline	2nd day after CEA	3rd month after CEA	value
				Baseline versus 2nd day	Baseline versus 3rd month	2nd day versus 3rd month
Choroidal thickness (μm)
Central choroidal thickness	320 (73)	307 (84)	336 (85)	0.41	0.03	0.02
Total choroidal thickness	299 (72)	291 (77)	310 (77)	0.61	0.04	0.06
Inner ring area
Temporal	300 (88)	290 (107.5)	318 (68)	0.52	0.01	0.03
Superior	290 (74)	298.5 (90)	319 (90)	0.96	0.02	0.03
Inferior	310 (121)	313 (135)	335 (87)	0.78	0.05	0.14
Nasal	298 (112)	315 (129)	325 (117)	0.42	0.02	0.02
Outer ring area
Temporal	281 (102)	278 (87.5)	282 (62)	0.80	0.06	0.06
Superior	290 (107)	285 (120)	313 (113)	0.84	0.04	0.02
Inferior	272 (149)	280 (125)	257 (151)	0.32	0.11	0.95
Nasal	250 (158)	258.5 (148)	287 (143)	0.50	0.03	0.01
Choroidal volume (mm)
Central choroidal volume	0.25 (0.05)	0.24 (0.07)	0.26 (0.06)	0.42	0.06	0.01
Total choroidal volume	8.07 (2.05)	8.1 (2.23)	8.52 (2.12)	0.86	0.01	0.02
Inner ring area
Temporal	0.47 (0.13)	0.46 (0.17)	0.5 (0.11)	0.49	0.02	0.03
Superior	0.45 (0.12)	0.47 (0.15)	0.5 (0.14)	0.92	0.01	0.03
Inferior	0.49 (0.19)	0.49 (0.22)	0.53 (0.14)	0.75	0.04	0.07
Nasal	0.47 (0.17)	0.495 (0.2)	0.51 (0.18)	0.31	0.03	0.02
Outer ring area
Temporal	1.37 (0.59)	1.47 (0.47)	1.5 (0.61)	0.29	0.06	0.24
Superior	1.53 (0.57)	1.52 (0.64)	1.66 (0.6)	0.85	0.06	0.02
Inferior	1.44 (0.79)	1.49 (0.67)	1.49 (0.7)	0.32	0.01	0.50
Nasal	1.33 (0.83)	1.37 (0.79)	1.52 (0.76)	0.43	0.03	0.01

CEA: carotid endarterectomy. Statistically significant results are indicated in bold ().