Prostheses MRI Safety
go to www.mrisafety.com
Commonly used Stapes Prostheses
Smart Piston
List Rec#
4566
Object Description
Gyrus SMart Stapes Piston
Titanium
Gyrus ACMI (Olympus Medical), www.medical.olympusamerica.com
Strength
3
Object Status
Safe
Safety Topic / Subject
Otologic Implants
Object Category
Otologic Implants
List Rec#
4888
Object Description
SMart Malleus Piston
Otologic Implant
Nitinol/Fluoroplastic
Gyrus ACMI (Olympus Medical), www.medical.olympusamerica.com
Strength
3
Object Status
Conditional 5
Safety Topic / Subject
Otologic Implants
Object Category
Otologic Implants
Fisch-type Piston
Big easy
Safe for MRI to 1.5T
List Rec#
4895
Object Description
The Big Easy Piston, Stapes Prosthesis
Otologic Implant
www.angelmedex.com
Strength
1.5
Object Status
Safe
Safety Topic / Subject
Otologic Implants
Object Category
Otologic Implants
Commonly Used Ossicular Chain Prostheses
Kurz Medical
Grace Medical
Imaging at 7 Tesla or Less
Non-clinical testing has demonstrated that patients with these specific Grace Medical ossicular implants can undergo MRI safely, immediately after implantation under the following conditions:
• Static magnetic field of 7-Tesla or less
• Maximum spatial gradient magnetic field of 2,000-Gauss/cm or less.
• MR system reported, whole-body-averaged specific absorption rate (SAR) of 4 –W/kg for 15 minutes of scanning (i.e., per pulse sequence).