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NCICT: NCI dosimetry system for Computed Tomography

NCICT is the computed tomography (CT) component of NCI Dose Tools. It supports organ dose assessment for CT examinations using computational human phantoms and scanner- or protocol-specific information.

NCICT is developed and maintained in the NCI Division of Cancer Epidemiology and Genetics (DCEG), Radiation Epidemiology Branch, and is supported by the peer-reviewed methods and validation studies listed below.

Resource Overview

  • Estimates absorbed doses to radiosensitive organs and tissues for CT examinations.
  • Uses reference-size pediatric and adult phantoms, body-size-adaptive pediatric and adult phantoms, and pregnancy phantoms with detailed fetal anatomy to represent patient anatomy for dose reconstruction.
  • Uses a comprehensive library of dose conversion coefficients pre-calculated using Monte Carlo radiation transport combined with source models and computational phantoms.
  • Supports interactive and batch workflows.

Additional information is available from related NCI Dose Tools GitHub sites:

Access and Licensing

  • Non-Commercial Research Use: There is no charge to use these resources for non-commercial research purposes. To request access, complete the Software Transfer Agreement form and submit the signed form to Dr. Choonsik Lee.
  • Commercial Use: Commercial vendors and other commercial users should contact Dr. Kevin Chang of the NCI Technology Transfer Center to discuss trial access, licensing, and available integration options.
  • Updated:
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