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

Table 2

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

Localization	ECE 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	298.5 (95)	285 (103)	303.5 (84)	0.23	0.34	0.02
Total choroidal thickness	289 (72)	272 (65)	295 (65)	0.17	0.42	0.02
Inner ring area
Temporal	302 (105)	284 (116)	309 (63)	0.12	0.82	0.09
Superior	319 (78)	274 (107)	306 (89.5)	0.05	0.55	0.01
Inferior	291.5 (86)	290 (101)	306.5 (74)	0.65	0.24	0.35
Nasal	290 (104)	272 (96)	295.5 (94.5)	0.18	0.36	0.04
Outer ring area
Temporal	271.5 (115)	270 (85)	278.5 (64.5)	0.20	0.78	0.03
Superior	310 (126)	270 (104)	301.5 (105.5)	0.05	0.43	0.03
Inferior	259 (134)	252 (145)	261.5 (108.5)	0.43	0.09	0.06
Nasal	263 (120)	244 (97)	264.5 (105.5)	0.63	0.30	0.14
Choroidal volume (mm)
Central choroidal volume	0.235 (0.07)	0.22 (0.08)	0.24 (0.07)	0.24	0.67	0.04
Total choroidal volume	7.87 (2.0)	7.53 (1.83)	8.07 (1.86)	0.19	0.21	0.02
Inner ring area
Temporal	0.47 (0.16)	0.45 (0.18)	0.485 (0.1)	0.16	0.97	0.15
Superior	0.505 (0.13)	0.43 (0.14)	0.48 (0.15)	0.07	0.46	0.01
Inferior	0.455 (0.13)	0.46 (0.15)	0.48 (0.12)	0.58	0.33	0.25
Nasal	0.455 (0.16)	0.43 (0.15)	0.465 (0.15)	0.28	0.35	0.07
Outer ring area
Temporal	1.44 (0.61)	1.43 (0.55)	1.475 (0.34)	0.11	0.82	0.02
Superior	1.64 (0.67)	1.43 (0.56)	1.595 (0.56)	0.06	0.44	0.03
Inferior	1.37 (0.71)	1.32 (0.77)	1.385 (0.58)	0.41	0.11	0.06
Nasal	1.39 (0.64)	1.29 (0.63)	1.4 (0.57)	0.49	0.39	0.14

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