Identification of anatomic structures within and adjacent to the jugular foramen*
| Anatomic Structure (49 sides) | CE-FIESTA | CE-MRA | ||||||
|---|---|---|---|---|---|---|---|---|
| 2 | 1 | 0 | Total† | 2 | 1 | 0 | Total† | |
| Dural septum | 0 (0) | 21 (43) | 28 (0) | 21 (43) | 29 (59.1) | 15 (30.6) | 5 (10.2) | 44 (89.9) |
| Cranial nerves | ||||||||
| CNIX | 36 (73.5) | 8 (16.3) | 5 (10.2) | 44 (90) | 49 (100) | 0 (0) | 0 (0) | 49 (100) |
| CNX/XI complex‡ | 39 (79.6) | 7 (14.3) | 3 (6.1) | 46 (94) | 49 (100) | 0 (0) | 0 (0) | 49 (100) |
| spCNXI | 10 (40) | 6 (24) | 9 (36) | 25 (51) | 0 (0) | 0 (0) | 49 (100) | 0 (0) |
| Cochlear aqueduct | 49 (100) | 0 (0) | 0 (0) | 49 (100) | 33 (67) | 16 (33) | 0 (0) | 49 (100) |
| Ganglia | ||||||||
| supCNIX | 12 (24.5) | 32 (65.3) | 5 (10.2) | 44 (89.9) | 13 (26.6) | 30 (61.2) | 6 (12.2) | 43 (87.8) |
| infCNIX | 0 (0) | 36 (73) | 13 (26.5) | 36 (73) | 24 (0) | 25 (100) | 0 (0) | 49 (100) |
| supCNX | 0 (0) | 48 (98) | 2 (4) | 48 (98) | 0 (0) | 49 (100) | 0 (0) | 49 (100) |
| Adjacent cranial nerve | ||||||||
| CNVII | 33 (67.3) | 10 (20.4) | 6 (12.2) | 43 (87.6) | 20 (40.8) | 8 (16.3) | 21 (42.9) | 28 (57.1) |
| Hypoglossal canal | 49 (100) | 0 (0) | 0 (0) | 49 (100) | 49 (100) | 0 (0) | 0 (0) | 49 (100) |
| CNXII within canal | 46 (93.9) | 3 (6.1) | 0 (0) | 49 (100) | 49 (100) | 0 (0) | 0 (0) | 49 (100) |
Note:—sup indicates superior; inf, inferior.
* Data are numbers of sides (percentage).
† Total number of sides (percentage) on which the respective anatomic structure was identified (score of 1 or 2).
‡ The cranial nerve rootlets of CNXI intermingle with CNX inside the JF, and thus these nerves are referred to as the CNX/XI complex.