The steering of microrobots by using magnetic fields offers applications for minimally invasive surgery or forestablishing drug delivery scenarios. On the one hand, magnetic particle imaging (MPI) offers a tomographic, realtime visualization of the used magnetic microrobots. On the other hand, an MPI scanner can apply magnetic fields, which a microrobot can be steered with. Hence, MPI is of great interest for realizing the tracking and navigation of microrobots. Here, we show that a microrobot, which has been coated with superparamagnetic iron oxide nanoparticles (SPIONs) can be steered through a patient specific phantom of the middle cerebral artery into an aneurysm, where it should occlude the aneurysm and can be potentially used for a triggered drug release or a hyperthermia treatment. The acquired MPI images show that a tracking accuracy of 0.68mmis achieved.

Original languageEnglish
Article number2203002
JournalInternational Journal on Magnetic Particle Imaging
Issue number1
Publication statusPublished - 2022

Research Areas and Centers

  • Academic Focus: Biomedical Engineering
  • Centers: Center for Artificial Intelligence Luebeck (ZKIL)

DFG Research Classification Scheme

  • 205-30 Radiology, Nuclear Medicine, Radiation Therapy and Radiobiology
  • 205-32 Medical Physics, Biomedical Engineering


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