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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
 
From:
Neurology. Author manuscript; available in PMC 2010 February 22.
Published in final edited form as:
Neurology. 2007 September 18; 69(12): 1245–1253.
doi: 10.1212/01.wnl.0000276947.59704.cf

Table 3

Neuroimaging

PatientExaminations availableInner earCerebral vasculatureOther
1CT temporal bones;
MRI brain; MRA
brain and neck
Right CCD with IAC stenosis;
absent left inner ear
structures and IAC
Low right CCA bifurcation;
hypoplastic left ICA with
larger left PCom; duplication
of proximal half of left
vertebral artery
2NA
3CT temporal bonesLeft CCD with IAC stenosis;
absent right inner ear
structures and IAC
NASmall right carotid canal
4CT temporal bones;
MRI brain; MRA
brain and neck;
US abdomen
Bilateral CCD with bilateral
IAC stenosis
Absent left ICA; hypoplastic
intracavernous right ICA;
low right CCA bifurcation;
large basilar system
Absent left carotid canal;
normal C-spine
5CT temporal bones;
MRI brain; MRA
brain and neck;
US abdomen
Bilateral CCD with bilateral
absent IAC
Bilateral absent ICAs; large
basilar system; duplication
of intracranial left vertebral
artery
Absent carotid canals
bilaterally; normal C-spine
6CT temporal bones;
MRI brain; MRA
brain and neck
Bilateral CCD with bilateral
IAC stenosis
Absent left ICA; low right
CCA bifurcation; hypoplastic
intracavernous right ICA;
large basilar system
Absent left carotid canal;
normal C-spine
7CT brain; MRI brain;
MRA brain; US
abdomen
Bilateral CCD with bilateral
absent IAC
Absent left ICA; low right
CCA bifurcation; large
basilar system
Normal C-spine
8MRI brainNormal inner ear bilaterallyHypoplastic left ICA; large
left PCom
CN 6 not conclusively
visible bilaterally
9NA

Columns 3 and 4 modified from Tischfield et al.,1 Supplementary Table 1 Online.

MRA = magnetic resonance angiography; CCD = common cavity deformity; IAC = internal auditory canal; CCA = common carotid artery; ICA = internal carotid artery; PCom = posterior communicating artery; NA = not available; C-spine = cervical spine; US = ultrasound.