Neuroradiology

ACR NI-RADS Calculator

Free NI-RADS Calculator with separate ACR 2018 CT/PET-CT and 2025 MRI surveillance paths for treated head and neck cancer.

References

  1. Aiken AH, Rath TJ, Anzai Y, et al. ACR Neck Imaging Reporting and Data Systems (NI-RADS): A White Paper of the ACR NI-RADS Committee. J Am Coll Radiol. 2018;15(8):1097-1108.
  2. Krieger DA, Hudgins PA, Nayak GK, et al. Initial Performance of NI-RADS to Predict Residual or Recurrent Head and Neck Squamous Cell Carcinoma. AJNR Am J Neuroradiol. 2017;38(6):1193-1199.
  3. Juliano AF, Spieler B, Engel JD, Glastonbury CM. NI-RADS for head and neck cancer surveillance imaging. Clin Radiol. 2020;75(4):247-257.
  4. ACR Neck Imaging Reporting and Data System (NI-RADS) Resources.
  5. Bunch PM, Aiken AH, Baugnon KL, et al. ACR Neck Imaging Reporting and Data System for MRI Version 2025. J Am Coll Radiol. 2025;22(11):1325-1336.
  6. American College of Radiology. NI-RADS MRI v2025 Assessment Categories and Algorithms.
  7. Wangaryattawanich P, Hirschmann A, Stable A. Best Practices: Application of NI-RADS for Posttreatment Surveillance Imaging. AJR Am J Roentgenol. 2020;215(5):1083-1092.

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