Comparison of Cochlear Implant Magnets and Their MRI Artifact Size
Table 1
Individual measurements at 1.5 T.
Distance of measurement
AB
Medel
Oticon
Ipsilateral
Contralateral
Ipsilateral
Contralateral
Ipsilateral
Contralateral
Area of measurement
in cm
Volunteer 3
Hard artifact
3.8
10.9
3.2
10.4
4.4
10.7
Soft artifact
4.7
10
3.9
9.8
4.8
10
Survey sagittal
3.7
3.6
3.7
Survey coronal
6.1
6
6
Volunteer 2
Hard artifact
3.2
10.3
3
10.8
0.3
10.3
Soft artifact
5
8.5
4.7
8.6
4.1
9.3
Survey sagittal
3.6
3.5
3.6
Survey coronal
6.3
6.1
5.5
The table shows each measurement for each brand in terms of estimation (ipsilateral and contralateral) and the differentiation between soft and hard . In addition, the survey calculation is added
