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Object Status Strength Ascending Reference Safety Info
Sorin Pericarbon (stented)
Mitral
pyrolytic carbon
Heart Valve
Sorin Biomedica
Italy 
 Conditional 5

1.5 

75. Edwards, M-B, Taylor KM, Shellock FG. Prosthetic heart valves: evaluation of magnetic field interactions, heating, and artifacts at 1.5 Tesla. J Magn Reson Imag 2000;12:363-369.  Heart Valves and Annuloplasty Rings 
Cerebral ventricular shunt tube connector,
Accu-Flow, straight
misc.
Codman
Randolf, MA 
 Safe

1.5 

3. Shellock FG, Crues JV. High-field strength MR imaging and metallic biomedical implants: an ex vivo evaluation of deflection forces. Am J Roentgenol 1988;151:389-392.  Cerebrospinal Fluid (CSF) Shunt Valves and Accessories 
Cerebral ventricular shunt tube connector,
Accu-flow, T-connector
misc.
Codman
Randolf, MA 
 Safe

1.5 

3. Shellock FG, Crues JV. High-field strength MR imaging and metallic biomedical implants: an ex vivo evaluation of deflection forces. Am J Roentgenol 1988;151:389-392.  Cerebrospinal Fluid (CSF) Shunt Valves and Accessories 
Codman-Medos
Programmable Valve
Medos S.A.,
misc.
LeLocle, Switzerland 
 Conditional 5

1.5 

67. Ortler M, Kostron H, Felber S. Transcutaneous pressure-adjustable valves and magnetic resonance imaging: an ex vivo examination of the Codman-Medos programmable valve and the Sophy adjustable pressure valve. Neurosurgery 1997;40:1050-1057.  Magnetically Activated Implants and Devices 
Contraceptive diaphragm All Flex
misc.
Ortho Pharmaceutical
Raritan, NJ 
 Conditional 5

1.5 

3. Shellock FG, Crues JV. High-field strength MR imaging and metallic biomedical implants: an ex vivo evaluation of deflection forces. Am J Roentgenol 1988;151:389-392.  Miscellaneous Implants and Devices 
Contraceptive diaphragm
Flat Spring
misc.
Ortho Pharmaceutical
Raritan, NJ 
 Conditional 5

1.5 

3. Shellock FG, Crues JV. High-field strength MR imaging and metallic biomedical implants: an ex vivo evaluation of deflection forces. Am J Roentgenol 1988;151:389-392.  Miscellaneous Implants and Devices 
Contraceptive diaphragm
Gyne T
misc. 
 Safe

1.5 

47. Hess T, Stepanow B, Knopp MV. Safety of intrauterine contraceptive devices during MR imaging. Eur Radiol 1996;6:66-68.  Miscellaneous Implants and Devices 
Contraceptive diaphragm
Koroflex
misc.
Young Drug Products
Piscataway, NJ 
 Conditional 5

1.5 

3. Shellock FG, Crues JV. High-field strength MR imaging and metallic biomedical implants: an ex vivo evaluation of deflection forces. Am J Roentgenol 1988;151:389-392.  Miscellaneous Implants and Devices 
Contraceptive IUD
Multiload Cu375 (copper, silver) 
 Safe

1.5 

47. Hess T, Stepanow B, Knopp MV. Safety of intrauterine contraceptive devices during MR imaging. Eur Radiol 1996;6:66-68.  Intrauterine Contraceptive Devices (IUDs) and Other Contraceptive Devices 
Contraceptive IUD
Nova T (copper, silver) 
 Safe

1.5 

47. Hess T, Stepanow B, Knopp MV. Safety of intrauterine contraceptive devices during MR imaging. Eur Radiol 1996;6:66-68.  Intrauterine Contraceptive Devices (IUDs) and Other Contraceptive Devices 
Cranial Ceramic Drill bit (ceramic)
misc.
MicroSurgical Techniques Inc.
Fort Collins, CO 
 Safe

1.5 

48. Shellock FG, Shellock VJ. Evaluation of MR compatibility of 38 bioimplants and devices. Radiology 1995;197:174.  Miscellaneous Implants and Devices 
Craniofix, bone flap fixation system (titanium alloy)
misc.
Aesculap, Inc.
South San Francisco, CA 
 Safe

1.5 

50. Shellock FG, Shellock VJ. Evaluation of cranial flap fixation clamps for compatibility with MR imaging. Radiology 1998; 822-825.  Miscellaneous Implants and Devices 
Cranial Screw
neurosurgery fixation
size, 1.5 x 4.5 mm
titanium alloy
misc.
Johnson and Johnson
Berkshire, UK 
 Safe

1.5 

  Miscellaneous Implants and Devices 
Cranial Screw
neurosurgery fixation
size 1.9 x 4.5 mm
titanium alloy
misc.
Johnson and Johnson
Berkshire, UK 
 Safe

1.5 

  Miscellaneous Implants and Devices 
Deponit, nitroglycerin
transdermal delivery system (aluminized plastic), patch
Schwarz Pharma, Milwaukee, WI 
 Unsafe 1

1.5 

  Miscellaneous Implants and Devices 
Retinal tack (303 SS)
ocular
Bascom Palmer Eye Institute 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack (303 SS)
ocular
Duke 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack (aluminum textraoxide)
ocular
Ruby 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack (cobalt, nickel)
ocular
Greishaber
Fallsington, PA 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack (martensitic SS)
ocular
Western European 
 Unsafe 1

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack (titanium alloy)
ocular
Coopervision
Irvine, CA 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Retinal tack, Norton staple (platinum, rhodium)
ocular
Norton 
 Safe

1.5 

32. Joondeph BC, Peyman GA, Mafee MF, et al. Magnetic resonance imaging and retinal tacks [Letter]. Arch Ophthalmol 1987;105:1479-1480.  Ocular Implants, Lens Implants, and Devices 
Single tantalum clip (tantalum)
ocular 
 Safe

1.5 

29. Shellock FG, Myers SM, Schatz CJ. Ex vivo evaluation of ferromagnetism determined for metallic scleral "buckles" exposed to a 1.5 T MR scanner. Radiology 1992;185:288-289.  Ocular Implants, Lens Implants, and Devices 
Troutman magnetic ocular implant
ocular 
 Unsafe 1

1.5 

  Ocular Implants, Lens Implants, and Devices 
Unitech round wire eye spring
ocular 
 Unsafe 1

1.5 

  Ocular Implants, Lens Implants, and Devices 
Cannulated cancellous screw
6.5 x 50 mm (titanium alloy)
orthopedic implant
DePuy ACE Medical Co.
El Segundo, CA 
 Safe

1.5 

  Orthopedic Implants, Materials, and Devices 
Captured screw assembly, 100 mm (titanium alloy)
orthopedic implant
DePuy ACE Medical Co.
El Segundo, CA 
 Safe

1.5 

  Orthopedic Implants, Materials, and Devices 
Endoscopic noncannulated
interference screw (titanium)
orthopedic implant
Acufex Microsurgical
Norwood, MA 
 Safe

1.5 

34. Shellock FG, Mink JH, Curtin S, et al. MRI and orthopedic implants used for anterior cruciate ligament reconstruction: assessment of ferromagnetism and artifacts. J Magn Reson Imaging 1992;2:225-228.  Orthopedic Implants, Materials, and Devices 
Fixation staple (cobalt- chromium alloy)
orthopedic implant
Richards Medical Co.
Memphis, TN 
 Safe

1.5 

34. Shellock FG, Mink JH, Curtin S, et al. MRI and orthopedic implants used for anterior cruciate ligament reconstruction: assessment of ferromagnetism and artifacts. J Magn Reson Imaging 1992;2:225-228.  Orthopedic Implants, Materials, and Devices 
Halifax clamps

orthopedic implant
American Medical Electronics Richardson, TX 
 Safe

1.5 

  Orthopedic Implants, Materials, and Devices 

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