{
  "patent_number": "US 12189012",
  "country": "US",
  "title": "Removing Radio Interference from Portable MRI Scans",
  "original_title": "System and method for electromagnetic interference mitigation for portable MRI systems",
  "summary": "A method to clean up MRI images by using external sensors to detect and subtract outside radio interference, allowing portable scanners to work outside shielded rooms.",
  "what_it_does": "Portable MRI machines are sensitive to outside radio noise, like signals from cell phones or power lines, which can ruin an image. This patent describes a system that uses external sensors (like pick-up coils or electrodes) to record this background noise while the MRI is scanning. The system then calculates a mathematical model—a transfer function—to figure out exactly how that noise is affecting the MRI data. By subtracting this interference from the raw scan data, the system produces a clean, usable image even if the scanner is not inside a traditional, heavily shielded hospital room.",
  "what_it_does_not_cover": [
    "Does not cover MRI systems that rely solely on physical RF shielding to block interference.",
    "Does not cover interference correction methods that do not use external detectors placed outside the imaging volume.",
    "Does not cover hardware-based noise filtering that happens before the data is digitized.",
    "Does not cover image reconstruction techniques that rely only on internal MRI data without external noise calibration."
  ],
  "filed": "2021-04-26",
  "granted": "2025-01-07",
  "expires": null,
  "status": "active",
  "holder": "General Hospital Corp",
  "holder_url": "https://patentbrief.org/company/general-hospital-corp",
  "inventors": [
    {
      "name": "Clarissa Zimmerman-Cooley",
      "url": "https://patentbrief.org/inventor/clarissa-zimmerman-cooley"
    },
    {
      "name": "Sai Abitha Srinivas",
      "url": "https://patentbrief.org/inventor/sai-abitha-srinivas"
    },
    {
      "name": "Stephen Cauley",
      "url": "https://patentbrief.org/inventor/stephen-cauley"
    },
    {
      "name": "Lawrence L. Wald",
      "url": "https://patentbrief.org/inventor/lawrence-l-wald"
    }
  ],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "medical_devices",
    "telecommunications"
  ],
  "abstract": "Electromagnetic interference (“EMI”) is mitigated for portable magnetic resonance imaging (“MRI”) systems using postprocessing interference suppression techniques that make use of EMI detectors external to the MRI system imaging volume to detect EMI signals and remove them from acquired magnetic resonance data. EMI correction models, including static transfer function-based models, dynamic transfer function-based models, correction weight-based models, or parallel imaging kernel-based models can be used to remove the EMI-related artifacts from the magnetic resonance data.",
  "url": "https://patentbrief.org/patent/us/12189012/eva-suit",
  "markdown_url": "https://patentbrief.org/patent/us/12189012/eva-suit/md",
  "google_patents_url": "https://patents.google.com/patent/US12189012",
  "relatedPatents": []
}