⚠️ Disclaimer: This table provides general guidance based on current literature and only includes devices commonly used in our institution. Users are responsible for ensuring accuracy. of the information. Always consult the device manufacturer's current labeling and institutional MRI safety protocols before imaging patients with implanted devices. MRI safety requirements may vary by specific device model and manufacturer. Please see Terms and Disclaimers. 

MRI Safety of Interventional Radiology Implantable Devices

MR Safe: No known hazards

MR Conditional: Safe under specific conditions

MR Unsafe: Unacceptable risks

□ Embolization Coils

Device	Material/Type	MRI Safety	Max Field	Wait Time	Special Conditions	Ref
Ruby Coils (Penumbra)	Platinum	MR Conditional	≤3T	None	SAR ≤2.0 W/kg (body), ≤3.2 W/kg (head), 15 min max	11
Nester Coils (Cook Medical)	Platinum/Inconel	MR Conditional	≤3T	None	Standard MR conditions	12
Interlock Fibered IDC (Boston Scientific)	Platinum/Fibers	MR Conditional	≤3T	None	Coil-within-coil technology	13
Embold Fibered Coils (Boston Scientific)	Platinum/Fibers	MR Conditional	≤3T	None	Multi-catheter compatible	14
Cook MReye Coils	Inconel	MR Conditional	≤3T	None	Designed for MR compatibility	4,5
Cook Standard Coils (Stainless Steel)	Stainless Steel	MR Conditional	≤3T	None	SAR ≤2.0 W/kg, temp rise <1.8°C	15

□ IVC Filters

Device	Material	MRI Safety	Max Field	Wait Time	Special Conditions	Ref
Bird's Nest Filter (Cook)	Stainless Steel	MR Conditional	≤1.5T	6 weeks	Ferromagnetic, requires caution	6,7
Option IVC Filter (Argon Medical)	Nitinol	MR Conditional	≤3T	None	Conical design, retrievable	20,21
Günther Tulip Filter (Cook)	Conichrome (Co-Cr alloy)	MR Conditional	≤3T	None	Retrievable/optional design	16,17
OptEase Filter (Cordis)	Nitinol	MR Conditional	≤3T	None	Double-basket design, femoral retrievable	18,19

□ Vascular Plugs

Device	Material	MRI Safety	Max Field	Wait Time	Special Conditions	Ref
Amplatzer Vascular Plugs	Nitinol	MR Conditional	≤3T	None	Various sizes available	8,9

⚠️ Disclaimer: This table provides general guidance based on current literature. Always consult device manufacturer's current labeling and institutional MRI safety protocols before imaging patients with implanted devices. MRI safety requirements may vary by specific device model and manufacturer.

Important Safety Notes

​⏰ Timing Guidelines

• Most modern devices: MRI can be performed immediately after placement
• 6-week rule: Traditional waiting period for ferromagnetic devices
• *Current practice: Recent evidence supports immediate scanning for properly placed devices

🔥 Heating Considerations

• Maximum temperature rise typically limited to 4°C
• SAR limits: 2.0-3.2 W/kg depending on body region
• Heating often the most restrictive MRI parameter

📊 Artifact Considerations

• Stainless steel: Significant susceptibility artifacts (up to 75mm)
• Platinum coils: Minimal artifacts (greatly reduced)
• Titanium/Nitinol: Minimal to moderate artifacts

⚠️ Force and Torque

• Devices become securely incorporated within 6 weeks
• Modern IVC filter migration rate: ~1%
• No increased migration risk demonstrated at 3.0T

References

1. American Heart Association Scientific Statement on Safety of Magnetic Resonance Imaging in Patients With Cardiovascular Devices. Circulation. 2007.
2. Shovlin CL, et al. Patients with in-situ metallic coils and Amplatzer vascular plugs used to treat pulmonary arteriovenous malformations since 1984 can safely undergo magnetic resonance imaging. Clin Radiol. 2019.
3. Noel CV, et al. Safety of Magnetic Resonance Imaging After Implantation of Stainless Steel Embolization Coils. Pediatr Cardiol. 2016.
4. Safety of Magnetic Resonance Imaging After Implantation of Stainless Steel Embolization Coils. PubMed. 2015.
5. NHS GGC MRI Physics - Cerebral vascular embolisation/aneurysm coils and embolisation devices policy.
6. Questions and Answers in MRI - IVC Filters. Available at: https://mriquestions.com/ivc-filters.html
7. Daye D, Walker TG. Back to the Basics: Inferior Vena Cava Filters. PMC. 2022.
8. Shovlin CL, et al. Patients with in-situ metallic coils and Amplatzer vascular plugs can safely undergo magnetic resonance imaging. Clin Radiol. 2019.
9. Shellock FG. MRI Safety Information - Coils, Stents, Filters and Vascular Grafts. Available at: https://www.mrisafety.com/
10. American College of Radiology Manual on MR Safety: 2024 Update and Revisions. Radiology. 2024.
11. Penumbra Inc. Ruby Coil MRI Information: MR Conditional. Available at: https://www.penumbrainc.com/wp-content/uploads/2016/12/8027A_RubyCoil_Compatibility.pdf
12. Cook Medical - Nester Embolization Coil. Available at: https://www.cookmedical.com/products/b092bc19-aecd-40aa-8146-430712000368/
13. Boston Scientific - Interlock and IDC Detachable Embolization Coils. Available at: https://www.bostonscientific.com/en-US/products/embolization/interlock-and-idc-detachable-embolization-coils.html
14. Boston Scientific - Embold Detachable Coil System. Available at: https://www.bostonscientific.com/en-US/products/embolization/embold-detachable-coil-system.html
15. Cook Medical General Product Information - MRI Safety. Available at: https://www.cookmedical.com/support/general-product-information/
16. Cook Medical - Günther Tulip Vena Cava Filter. Available at: https://www.cookmedical.com/products/ea845922-f1f5-4038-a4bc-f1a14e768a2d/
17. Looby S, Given MF, Geoghegan T, et al. Gunther Tulip Retrieval Inferior Vena Cava Filters: Indications, efficacy, retrieval, and complications. Cardiovasc Intervent Radiol. 2007;30:59-65.
18. Applied Radiology - Inferior vena cava filters: A contemporary review. Available at: https://appliedradiology.com/articles/inferior-vena-cava-filters-a-contemporary-review
19. Winokur RS, Bassik N, Madoff DC, Trost D. Radiologists' field guide to retrievable and convertible inferior vena cava filters. AJR Am J Roentgenol. 2019;213:768-778.