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Table 2: 
Identification of anatomic structures within and adjacent to the jugular foramen*
Anatomic Structure (49 sides)CE-FIESTACE-MRA
210Total†210Total†
Dural septum0 (0)21 (43)28 (0)21 (43)29 (59.1)15 (30.6)5 (10.2)44 (89.9)
Cranial nerves
    CNIX36 (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)
    spCNXI10 (40)6 (24)9 (36)25 (51)0 (0)0 (0)49 (100)0 (0)
Cochlear aqueduct49 (100)0 (0)0 (0)49 (100)33 (67)16 (33)0 (0)49 (100)
Ganglia
    supCNIX12 (24.5)32 (65.3)5 (10.2)44 (89.9)13 (26.6)30 (61.2)6 (12.2)43 (87.8)
    infCNIX0 (0)36 (73)13 (26.5)36 (73)24 (0)25 (100)0 (0)49 (100)
    supCNX0 (0)48 (98)2 (4)48 (98)0 (0)49 (100)0 (0)49 (100)
Adjacent cranial nerve
    CNVII33 (67.3)10 (20.4)6 (12.2)43 (87.6)20 (40.8)8 (16.3)21 (42.9)28 (57.1)
    Hypoglossal canal49 (100)0 (0)0 (0)49 (100)49 (100)0 (0)0 (0)49 (100)
    CNXII within canal46 (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.