Incidence of Brain Abnormalities Detected on Preoperative Brain MR Imaging and Their Effect on the Outcome of Cochlear Implantation in Children with Sensorineural Hearing Loss
Table 1
Follow-up of 23 SNHL patients with brain abnormalities after cochlear implantation.
Abnormal brain MRI findings
Concurrent abnormalities
Y/S
U/B
CI
IT-MAIS
FU (Mon)
Focal/diffuse
Before
After
White matter changes
Bilateral frontal and temporal subcortical area Bilateral periventricular area Ventriculomegaly
—
1/M
B
Yes
0
10
15
Diffuse
Multiple WMC lesions
—
1/M
U
No
—
—
12
—
Right posterior horn of lateral ventricle
—
4/M
B
Yes
3
31
14
Focal
Bilateral posterior horn of lateral ventricle
Malformed semicircular canal
2/F
B
Yes
1
34
16
Focal
Bilateral periventricular area Bilateral centrum semiovale
Intraparenchymal cystic lesions (right centrum semiovale)
—
3/M
B
Yes
2
26
13
—
Others
Abnormal enlargement of subarachnoid space (bilateral frontal and temporal area)
Enlarged vestibular aqueduct
1/F
B
Yes
0
17
16
—
Y, year old; S, sex; U, unilateral SNHL; B, bilateral SNHL; CI, cochlear implantation; FU, follow-up. L means the patient was lost during the follow-up.