{
  "abstract": "Significance: RF-induced heating of endovascular devices limits MRI-guided interventions, including targeted drug delivery to brain tumors. Purpose: To present a tool that rapidly generates randomized guidewire trajectories for RF heating risk assessment. Methods: A MATLAB tool models the guidewire as a spline with randomized control nodes and a fixed nominal length. As a use case, tip sSAR was estimated for 1000 trajectories using straight-wire transfer functions and 64 MHz local and body coil fields (matched B1) in the Duke phantom. Results: Length accuracy was 99.84%, and 3000 trajectories were generated in 11.5 s. Body-to-local sSAR ratios at the 50th, 95th, and 99th percentiles were 1.5, 1.6, and 2.27, but some trajectories heated more under the local coil. Conclusion: The tool enables large-sample heating assessment, and coil type alone did not reliably predict individual trajectory risk.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.04216",
  "author_total": 4,
  "authors": [
    {
      "name": "Fatima Ben Haj"
    },
    {
      "name": "Jeffrey Hand"
    },
    {
      "name": "Shaihan Malik"
    },
    {
      "name": "Felipe Godinez"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2k83rv2mng6ba.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.04216",
  "fulltext_url": null,
  "id": "2k83rv2mng6ba",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.04216",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.med-ph"
    ],
    [
      "openalex",
      "2741|Advanced MRI Techniques and Applications"
    ]
  ],
  "openalex": "W7220698833",
  "pdf_url": "https://arxiv.org/pdf/2610.04216",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2k83rv2mng6ba.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2610.04216",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.04216"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.med-ph",
      "subfield": "biological-medical"
    }
  ],
  "title": "A Guidewire Trajectory Generation Tool for Interventional MRI Simulations",
  "title_text": "A Guidewire Trajectory Generation Tool for Interventional MRI Simulations",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/2k83rv2mng6ba",
  "venue": "arXiv",
  "versions": []
}