Evidence map›Paper›PMID 33961301›Full record

ArticleMagnetic resonance in medicine2021

Vertical open-bore MRI scanners generate significantly less radiofrequency heating around implanted leads: A study of deep brain stimulation implants in 1.2T OASIS scanners versus 1.5T horizontal systems.

Ehsan Kazemivalipour, Bhumi Bhusal, Jasmine Vu, Stella Lin, Bach Thanh Nguyen, John Kirsch, Elizabeth Nowac, Julie Pilitsis, Joshua Rosenow, Ergin Atalar and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.5field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Control of radiated emissions during MRI using parallel transmit: a path to eliminating the Faraday shielded room for 0.5T imaging.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025
    Article
  4. Article
  5. A deep brain stimulation-conditioned RF coil for 3T MRI.Magnetic resonance in medicine · 2025
    Article
  6. Dual birdcage coils to control radiation from MRI systems operated without a Faraday cage.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. RF-induced heating of capped and uncapped abandoned epicardial leads during MRI at 1.5 T and 3 T.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  12. Article
  13. Implants talk to each-other: RF heating changes when two DBS leads are present simultaneously during MRI.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  14. Rapid prediction of MRI-induced RF heating of active implantable medical devices using machine learning.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  15. Low-field MRI's Spark on Implant Safety: A Closer Look at Radiofrequency Heating.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  16. Optimizing the trajectory of deep brain stimulation leads reduces RF heating during MRI at 3 T: Characteristics and clinical translation.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  17. Multi-Segment Leads To Reduce RF Heating in MRI: A Computational Evaluation at 1.5T and 3T.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2023
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Ehsan KazemivalipourDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.ORCID 0000-0003-4221-2397
Bhumi BhusalDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.ORCID 0000-0002-4404-9784
Jasmine VuDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.ORCID 0000-0001-6288-1446
Stella LinDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Bach Thanh NguyenDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
John KirschA. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, Massachusetts, USA.
Elizabeth NowacDepartment of Neurosurgery, Albany Medical Center, Albany, New York, USA.
Julie PilitsisIllinois Bone and Joint Institute (IBJI), Wilmette, Illinois, USA.
Joshua RosenowDepartment of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Ergin AtalarDepartment of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey.ORCID 0000-0002-6874-6103
Laleh GolestaniradDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Northwestern University · USAlbany Medical Center Hospital · USBilkent University · TRIllinois Bone and Joint Institute · USMassachusetts General Hospital · US

Funding

Assessing RF heating of deep brain stimulation implants in high-field open-bore MRI systemsR03EB029587 · NIBIB · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GOLESTANI RAD, LALEH, ROSENOW, JOSHUA M · 2020 to 2021
$158k
Safety assessment of magnetic resonance imaging in patients with retained cardiac leadsR03EB025344 · NIBIB · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GOLESTANI RAD, LALEH · 2018 to 2019
$156k
Hitachi Healthcare AmericasNIBIB NIH HHS R03 EB025344NIBIB NIH HHS R03 EB029587NIH HHS R03EB025344
6 · The paper itself

Abstract

purposePatients with active implants such as deep brain stimulation (DBS) devices are often denied access to MRI due to safety concerns associated with the radiofrequency (RF) heating of their electrodes. The majority of studies on RF heating of conductive implants have been performed in horizontal close-bore MRI scanners. Vertical MRI scanners which have a 90° rotated transmit coil generate fundamentally different electric and magnetic field distributions, yet very little is known about RF heating of implants in this class of scanners. We performed numerical simulations as well as phantom experiments to compare RF heating of DBS implants in a 1.2T vertical scanner (OASIS, Hitachi) compared to a 1.5T horizontal scanner (Aera, Siemens).

methodsSimulations were performed on 90 lead models created from post-operative CT images of patients with DBS implants. Experiments were performed with wires and commercial DBS devices implanted in an anthropomorphic phantom.

resultsWe found significant reduction of 0.1 g-averaged specific absorption rate (30-fold, P < 1 × 10

conclusionVertical MRI scanners appear to generate lower RF heating around DBS leads, providing potentially heightened safety or the flexibility to use sequences with higher power levels than on conventional systems.

Indexed as

Deep Brain StimulationElectrodes, ImplantedHot TemperatureHumansMagnetic Resonance ImagingPhantoms, ImagingRadio Wavesdeep brain stimulationfinite element methodmedical implantsMR-guided neurosurgeryMRI safetyopen-bore vertical MRIRF heating

Identifiers

PMID33961301
PMCPMC8713475
OpenAlexW3159152854

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.