Table 2.

Cochlear implant information and number of extracochlear electrodes detected by each method are shown. “-“ indicates that no data was available for this particular measurement.

	Electrode Type	Manufacturer	Electrode	Number of Extracochlear Electrodes
				CT	Operative Report	CI Mapping	ECAP	Detected without CT?
1	Lateral	AB	1J	6	2	3	Normal	No
2	Lateral	AB	1J	4	0	0	-	No
3	Lateral	AB	1J	2	0	0	-	No
4	Lateral	AB	1J	1	0	0	-	No
5	Precurved	AB	Helix	1	0	0	-	No
6	Lateral	AB	1J	1	0	1	Normal	Yes
7	Lateral	Cochlear	CI422	4	0	2	2	No
8	Lateral	Cochlear	CI422	3	0	1	3	Yes
9	Lateral	Cochlear	CI422	3	0	5	3	Yes
10	Lateral	Cochlear	CI422	2	0	2	3	Yes
11	Precurved	Cochlear	CI24RE-CA	2	0	3	1	Yes
12	Lateral	Cochlear	CI422	2	0	2	3	Yes
13	Lateral	Cochlear	CI24RE-ST	2	0	5	-	Yes
14	Precurved	Cochlear	CI24RE-CA	1	0	0	1	Yes
15	Precurved	Cochlear	CI24RE-CA	1	0	2	-	Yes
16	Lateral	Cochlear	CI422	1	0	1	Normal	Yes
17	Lateral	Cochlear	CI24RE-ST	5	5	5	5	Yes
18	Lateral	Cochlear	CI422	1	0	2	Normal	Yes
19	Lateral	MED-EL	Standard	5	2	5	4	Yes
20	Lateral	MED-EL	Standard	5	2	3	3	No
21	Lateral	MED-EL	Flex 28	4	0	0	Normal	No
22	Lateral	MED-EL	Flex 28	3	1	3	3	Yes
23	Lateral	MED-EL	Standard	3	1	3	-	Yes
24	Lateral	MED-EL	Standard	3	0	0	-	No
25	Lateral	MED-EL	Standard	3	0	2	Normal	No
26	Lateral	MED-EL	Flex 24	3	2	4	-	Yes
27	Lateral	MED-EL	Flex 28	2	1	3	-	Yes
28	Lateral	MED-EL	Standard	2	0	3	-	Yes
29	Lateral	MED-EL	Flex 28	2	0	1	Normal	No
30	Lateral	MED-EL	Flex 28	2	2	2	2	Yes
31	Lateral	MED-EL	Flex 28	1	0	1	Normal	Yes
32	Lateral	MED-EL	Flex 28	1	0	3	Normal	Yes
33	Lateral	MED-EL	Flex 24	1	0	1	1	Yes
34	Lateral	MED-EL	Standard	1	0	0	-	No
35	Lateral	MED-EL	Flex 28	1	0	1	-	Yes
Total # of electrodes				35	2	21	9	23