and Jan Žižka2
(1)
Department of Radiology, University Hospital Hradec Králové, Hradec Králové, Czech Republic
(2)
Department of Radiology Faculty of Medicine in Hradec Králové, University Hospital Hradec Králové Charles University in Prague, Hradec Králové, Czech Republic
S00: HRCT Stenvers reformat
Stenvers plane (oblique coronal, i.e. long axis of the pyramid)
Using an MPR 3D viewer, anterior semicircular canal is identified on reformatted axial sections. The Stenvers reformat runs perpendicular to the plane defined by the anterior semicircular canal.
S01: HRCT Stenvers reformat
EAC
external auditory canal
FS
foramen spinosum
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
MHE
mandible – head
MP
mastoid process
SSS
sphenosquamosal suture
S02: HRCT Stenvers reformat
EAC
external auditory canal
FS
foramen spinosum
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
MHE
mandible – head
MP
mastoid process
SSS
sphenosquamosal suture
S03: HRCT Stenvers reformat
E
epitympanum
EAC
external auditory canal
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
MHE
mandible – head
MP
mastoid process
SP
styloid process
SSS
sphenosquamosal suture
S04: HRCT Stenvers reformat
E
epitympanum
EAC
external auditory canal
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
MHE
mandible – head
MP
mastoid process
SP
styloid process
SSS
sphenosquamosal suture
S05: HRCT Stenvers reformat
E
epitympanum
EAC
external auditory canal
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
PTF
petrotympanic fissure
SP
styloid process
S06: HRCT Stenvers reformat
EAC
external auditory canal
LPE
lateral posterior epitympanum
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
PTF
petrotympanic fissure
SP
styloid process
S07: HRCT Stenvers reformat
EAC
external auditory canal
LPE
lateral posterior epitympanum
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MF
mandibular fossa
MH
malleus – head
MLP
malleus – lateral process
SP
styloid process
TTM
tensor tympani muscle
S08: HRCT Stenvers reformat
BI
body of incus
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
IMJ
incudomallear joint
MAC
mastoid air cells
MAP
malleus – anterior process
MCBS
mastoid cells bony septa
MF
mandibular fossa
MH
malleus – head
MLP
malleus – lateral process
SP
styloid process
TTM
tensor tympani muscle
S09: HRCT Stenvers reformat
BI
body of incus
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
IMJ
incudomallear joint
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
MH
malleus – head
MN
malleus – neck
SP
styloid process
TTM
tensor tympani muscle
S10: HRCT Stenvers reformat
BI
body of incus
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
IMJ
incudomallear joint
ISP
incus – short process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
MH
malleus – head
MHA
malleus – handle
MN
malleus – neck
SP
styloid process
TTM
tensor tympani muscle
S11: HRCT Stenvers reformat
BI
body of incus
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
IMJ
incudomallear joint
ISP
incus – short process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
MH
malleus – head
MHA
malleus – handle
SP
styloid process
TTM
tensor tympani muscle
S12: HRCT Stenvers reformat
BI
body of incus
CAC
carotid canal
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
ISP
incus – short process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
MHA
malleus – handle
SP
styloid process
TTM
tensor tympani muscle
TTMT
tensor tympani muscle – tendon
S13: HRCT Stenvers reformat
AAA
aditus ad antrum
CAC
carotid canal
E
epitympanum
EAC
external auditory canal
ET
Eustachian tube
ILP
incus – long process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
MHA
malleus – handle
SP
styloid process
TTM
tensor tympani muscle
TTMT
tensor tympani muscle – tendon
S14: HRCT Stenvers reformat
AAA
aditus ad antrum
CAC
carotid canal
E
epitympanum
FNFG
facial nerve canal – first genu
HT
hypotympanum
ILP
incus – long process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
TTM
tensor tympani muscle
S15: HRCT Stenvers reformat
AAA
aditus ad antrum
CAC
carotid canal
CTAT
crista transversa – anterior epitympanum
E
epitympanum
FNCTS
facial nerve canal – tympanic segment
HT
hypotympanum
LP
lenticular process
MAC
mastoid air cells
MCBS
mastoid cells bony septa
MET
mesotympanum
MF
mandibular fossa
PLSC
prominence of lateral semicircular canal
TTM
tensor tympani muscle
S16: HRCT Stenvers reformat
CAC
carotid canal
FNCTS
facial nerve canal tympanic segment