# Coronar

# Coronarstent af ukendt fabrikat og model

[![MRI Conditional.png](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-conditional.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-conditional.png)

<table border="1" id="bkmrk-fabrikat%2Fmodel%3A-foru" style="border-collapse: collapse; width: 100%; height: 568.688px; border-width: 1px; background-color: rgb(236, 240, 241);"><colgroup><col style="width: 29.4644%;"></col><col style="width: 70.6548%;"></col></colgroup><tbody><tr style="height: 133.766px;"><td style="height: 133.766px;">**Fabrikat/model:**</td><td style="height: 133.766px;">Fabrikat ukendt, Model ukendt

Denne sikkerhedsprocedure kan anvendes, hvis det viser sig umuligt, at

fremskaffe sikkerhedsinformationer om en specifik coronar stent...

Gældende for enkeltstents, samt for flere overlappende - der er ingen restriktioner på overlappende stentlængde.

</td></tr><tr style="height: 46.5938px;"><td style="height: 46.5938px;">**Statisk feltstyrke:**</td><td style="height: 46.5938px;">1,5/3T Tesla</td></tr><tr style="height: 46.5938px;"><td style="height: 46.5938px;">**Scannerarkitektur:**</td><td style="height: 46.5938px;">Ingen restriktioner på retningen af det statiske magnetfelt (gælder både konventionelle og åbne MR-systemer)</td></tr><tr style="height: 46.5938px;"><td style="height: 46.5938px;">**Spatial gradient:**</td><td style="height: 46.5938px;">Ingen restriktioner</td></tr><tr style="height: 46.5938px;"><td style="height: 46.5938px;">**Slew rate (Gr):**</td><td style="height: 46.5938px;">Ingen restriktioner</td></tr><tr style="height: 49.1719px;"><td style="height: 49.1719px;">**SAR:**</td><td style="height: 49.1719px;">Normal Operation Mode

MR-scanning i 15 min pr sekvens

- Coronarstent **inden for** det transmitterede RF-felts område: SAR ≤ **2 W/kg** (Normal Operating Mode)
- Coronarstent **helt uden for** det transmitterede RF-felts område: SAR ≤ **4 W/kg** (First Level Controlled Operating Mode) må anvendes

</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**B1+rms:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Coil type:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Artefakter:**</td><td style="height: 29.7969px;">Coronarstents giver et lokalt susceptibilitetsartefakt (signal void) i og omkring stenten. Ved 3T strækker artefaktet sig typisk ca. 6 mm fra stenten ved både gradient-echo og spin-echo sekvenser. Ved 1,5T er signaltabet mindre – typisk ca. 5,5 mm i diameter. Turbo spin-echo giver minimale artefakter; gradient-echo og EPI giver større artefakter. Artefaktet begrænser primært vurderingen af væv i direkte nærhed af stenten og påvirker sjældent den diagnostiske kvalitet af omgivende strukturer.</td></tr><tr style="height: 46.5938px;"><td style="height: 46.5938px;">**Temperaturstigning:**</td><td style="height: 46.5938px;">I studier der evaluerede stentopvarmning, sås kun minimal til beskeden opvarmning – under 1 °C for en enkelt stent og under 2 °C for to lange, overlappende stents. Blodgennemstrømning bidrager til at dissipere eventuel lokal varme.</td></tr><tr style="height: 63.3906px;"><td style="height: 63.3906px;">**Kilde (se evt. pdf):**</td><td style="height: 63.3906px;">**Shellock FG (2025)** – *Guidelines for the Management of Patients with Coronary Artery Stents Referred for MRI Examinations* – ISMRM/SMRT Safety Page. [https://www.ismrm.org/smrt/safety\_page/2025.Shellock.Coronary%20Stent.MRI.Guidelines.pdf](https://www.ismrm.org/smrt/safety_page/2025.Shellock.Coronary%20Stent.MRI.Guidelines.pdf)

**Levine GN et al. (2007)** – *Safety of Magnetic Resonance Imaging in Patients with Cardiovascular Devices* – American Heart Association Scientific Statement. Circulation 2007;116:2878–2891. [https://doi.org/10.1161/circulationaha.107.187256](https://doi.org/10.1161/circulationaha.107.187256)

**Shellock FG (2005)** – *MR Safety at 3T: Bare Metal and Drug-Eluting Coronary Stents* – Diagnostic Imaging. [https://www.diagnosticimaging.com/view/mr-safety-3t-bare-metal-and-drug-eluting-coronary-stents](https://www.diagnosticimaging.com/view/mr-safety-3t-bare-metal-and-drug-eluting-coronary-stents)

**MRIquestions.com** – *Vascular Stents &amp; Grafts* – Q&amp;A-ressource med klinisk fortolkning af litteraturen. [https://mriquestions.com/vascular-stentsgrafts.html](https://mriquestions.com/vascular-stentsgrafts.html)

**UCSF Radiology MRI Safety Guidelines** – *Coronary Stents* – Institutionel protokol baseret på Shellock-guidelines. [https://radiology.ucsf.edu/patient-care/patient-safety/mri-safety-guidelines/coronary-stents](https://radiology.ucsf.edu/patient-care/patient-safety/mri-safety-guidelines/coronary-stents)

</td></tr></tbody></table>

<table border="1" id="bkmrk-kommentarer-til-impl" style="border-collapse: collapse; width: 100%; height: 59.5938px; border-width: 1px; background-color: rgb(251, 238, 184);"><colgroup><col style="width: 99.881%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Kommentarer til implantat**</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">Patienter med alle kommercielt tilgængelige coronarstents kan undergå MRI umiddelbart efter implantation af disse implantater. <span class="inline-flex" data-state="closed">[<span class="relative transition-colors h-full max-w-[180px] overflow-hidden px-1.5 inline-flex items-center font-small rounded-full border-0.5 border-border-300 bg-bg-200 group-hover/tag:bg-accent-900 group-hover/tag:border-accent-100/60"><span class="text-nowrap text-text-300 break-all truncate font-normal group-hover/tag:text-text-200">ISMRM</span></span><span class="transition-all opacity-[0%] h-[17px] absolute right-[0.5px] inline rounded-r-full flex items-center px-1.5 bg-gradient-to-r from-accent-900/0 via-accent-900/100 via-30% to-accent-900/100 group-hover/tag:opacity-[100%]"><svg class="transition-all group-hover/tag:ease-out duration-[500ms] ease-in text-accent-100 group-hover/tag:scale-[100%] scale-[80%] group-hover/tag:opacity-[100%] opacity-[0%] -mr-[2px]" fill="currentColor" height="14" viewbox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg"><path d="M200,64V168a8,8,0,0,1-16,0V83.31L69.66,197.66a8,8,0,0,1-11.32-11.32L172.69,72H88a8,8,0,0,1,0-16H192A8,8,0,0,1,200,64Z"></path></svg></span>](https://www.ismrm.org/smrt/safety_page/2021.Shellock.Coronary-Stent.MRI.Guidelines.pdf)</span>

De fleste coronare og perifere vaskulære stents er non-ferromagnetiske og kan sikkert scannes ved 3 T eller derunder på ethvert tidspunkt efter implantation.

</td></tr></tbody></table>

# Xience Pro

[![MRI Conditional.png](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-conditional.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-conditional.png)

<table border="1" id="bkmrk-fabrikat%2Fmodel%3A-foru" style="border-collapse: collapse; width: 100%; height: 357.563px; border-width: 1px; background-color: rgb(236, 240, 241);"><colgroup><col style="width: 29.4644%;"></col><col style="width: 70.6548%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Fabrikat/model:**</td><td style="height: 29.7969px;">Xience Pro - Everolimus Eluting Coronary Stent System</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Statisk feltstyrke:**</td><td style="height: 29.7969px;">1,5 Tesla / 3 Tesla</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Scannerarkitektur:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Spatial gradient:**</td><td style="height: 29.7969px;">3000 Gauss/cm (25 T/m)</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Slew rate (Gr):**</td><td style="height: 29.7969px;">Ingen restriktioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**SAR:**</td><td style="height: 29.7969px;">Body: 2 W/kg

</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**B1+rms:**</td><td style="height: 29.7969px;">Ikke oplyst</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Coil type:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Artefakter:**</td><td style="height: 29.7969px;">Må kunne forventes</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Temperaturstigning:**</td><td style="height: 29.7969px;">Maksimalt 3,0 grader ved scanning på Normal Operating Mode</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Kilde (se evt. pdf):**</td><td style="height: 29.7969px;">Abott Vasculars hjemmeside (IFU vedhæftet).</td></tr></tbody></table>

<table border="1" id="bkmrk-kommentarer-til-impl" style="border-collapse: collapse; width: 100%; height: 59.5938px; border-width: 1px; background-color: rgb(251, 238, 184);"><colgroup><col style="width: 99.881%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Kommentarer til implantat**</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">  
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# Resolute Onyx Zotarolimus-Eluting Coronary Stent System

[![MRI safe.png](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-safe.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-safe.png)[![MRI Conditional.png](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-conditional.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-conditional.png)[![MRI Unsafe.png](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-unsafe.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-unsafe.png)

<table border="1" id="bkmrk-fabrikat%2Fmodel%3A-foru" style="border-collapse: collapse; width: 100%; height: 357.563px; border-width: 1px; background-color: rgb(236, 240, 241);"><colgroup><col style="width: 29.4644%;"></col><col style="width: 70.6548%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Fabrikat/model:**</td><td style="height: 29.7969px;">Resolute Onyx</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Statisk feltstyrke:**</td><td style="height: 29.7969px;">1,5 Tesla / 3 Tesla</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Scannerarkitektur:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Spatial gradient:**</td><td style="height: 29.7969px;">3000 Gauss/cm</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Slew rate (Gr):**</td><td style="height: 29.7969px;">Ingen restriktioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**SAR:**</td><td style="height: 29.7969px;">Body: 2,0 W/kg (Normal Operating mode)

</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**B1+rms:**</td><td style="height: 29.7969px;">Ikke oplyst</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Coil type:**</td><td style="height: 29.7969px;">Ingen restrektioner</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Artefakter:**</td><td style="height: 29.7969px;">~10 mm fra stenten (spin echo, 3T) — obskurerer stent-lumen</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Temperaturstigning:**</td><td style="height: 29.7969px;">4,3 °C efter 15 min kontinuerlig scanning</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Kilde (se evt. pdf):**</td><td style="height: 29.7969px;">Medtronic.com</td></tr></tbody></table>

<table border="1" id="bkmrk-kommentarer-til-impl" style="border-collapse: collapse; width: 100%; height: 59.5938px; border-width: 1px; background-color: rgb(251, 238, 184);"><colgroup><col style="width: 99.881%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Kommentarer til implantat**</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**Materiale:** Komposit-metalstent — cobalt-baseret legering (ASTM F562) som yderskal, med platin-iridium-legering (ASTM B684) som kerne. Ingen ferromagnetisk stål.</td></tr></tbody></table>

# BioFreedom Drug-Coated Coronary Stent

[![](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/scaled-1680-/mri-conditional.png)](https://mrdb.friishns.eu/uploads/images/gallery/2026-04/mri-conditional.png)

<table id="bkmrk-fabrikat%2Fmodel-biose" style="border: 1px solid; background-color: rgb(236,240,241);"><tbody><tr><td style="border: 1px solid; width: 29.5%;">**Fabrikat/model**</td><td contenteditable="true" style="border: 1px solid; width: 70.5%;">Biosensors International – BioFreedom™ Drug-Coated Coronary Stent (DCS), REF BFR1 (jf. label) / BFR2 (jf. IFU), 3,5 x 24 mm</td></tr><tr><td style="border: 1px solid;">**Statisk feltstyrke**</td><td contenteditable="true" style="border: 1px solid;">1,5 T eller 3,0 T</td></tr><tr><td style="border: 1px solid;">**Scannerarkitektur**</td><td contenteditable="true" style="border: 1px solid;">Ikke oplyst</td></tr><tr><td style="border: 1px solid;">**Spatial gradient**</td><td contenteditable="true" style="border: 1px solid;">≤ 3000 G/cm</td></tr><tr><td style="border: 1px solid;">**Slew rate (Gr)**</td><td contenteditable="true" style="border: 1px solid;">Ikke oplyst</td></tr><tr><td style="border: 1px solid;">**SAR (Body)**</td><td contenteditable="true" style="border: 1px solid;">≤ 2 W/kg whole-body-averaget (Normal Operating Mode)</td></tr><tr><td style="border: 1px solid;">**SAR (Head)**</td><td contenteditable="true" style="border: 1px solid;">Ikke oplyst</td></tr><tr><td style="border: 1px solid;">**B1+rms**</td><td contenteditable="true" style="border: 1px solid;">Ikke oplyst</td></tr><tr><td style="border: 1px solid;">**Coil type**</td><td contenteditable="true" style="border: 1px solid;">Ingen restriktioner</td></tr><tr><td style="border: 1px solid;">**Artefakter**</td><td contenteditable="true" style="border: 1px solid;">Ca. 13 mm artefaktudbredelse fra stent (3,0 T, GRE-sekvens); lumen fuldt obskureret</td></tr><tr><td style="border: 1px solid;">**Temperaturstigning**</td><td contenteditable="true" style="border: 1px solid;">&lt; 1°C efter 15 min kontinuerlig scanning under ovenstående betingelser</td></tr><tr><td style="border: 1px solid;">**Kilde (se evt. pdf)**</td><td contenteditable="true" style="border: 1px solid;">FDA P190020D – BioFreedom™ DCS Instructions for Use, Revision 2 (draft), Biosensors International</td></tr></tbody></table>

<table id="bkmrk-kommentarer-til-impl" style="background-color: rgb(251,238,184);"><tbody><tr><td style="border: 1px solid;">**Kommentarer til implantat**</td></tr><tr><td contenteditable="true" style="border: 1px solid;">Total stentlængde i patient (alle implanterede BA9-coatede stents tilsammen) må ikke overstige 58 mm jf. IFU.</td></tr></tbody></table>