X-ray dose estimation technique

摘要

Embodiments of the disclosure relate to projection-based dose estimation for X-ray systems, such as X-ray imaging systems. For example, in one embodiment, an X-ray system is capable of estimating an X-ray dose based on an intensity profile of the detected X-rays that have passed through a scanned object and an estimated mass of the object. In one embodiment, the intensity profile may be compared to a baseline scan to acquire an estimate of energy interaction with the object.

主权项

1. An X-ray system comprising:
an X-ray source configured to generate an X-ray beam; a detector configured to detect X-rays of the X-ray beam that pass through an object, and to detect X-rays of the X-ray beam when the object is not in a field of view; and a processor coupled to the detector and configured to receive information generated by the detector related to the detected X-rays, and wherein the processor is configured to execute instructions for:
determining an object intensity profile from the object scan of the detected X-rays that pass through the object and determining a baseline intensity profile using a baseline scan of the detected X-rays when the object is not in view;determining a combined attenuation profile of the detected X-rays that pass through the object, wherein the combined attenuation profile is generated by combining the object scan and the baseline scan;estimating an energy interaction with the object based on the baseline intensity profile and the object intensity profile;estimating a mass of the object based on the combined attenuation profile; anddetermining an estimated dose value based at least in part on the energy interaction with the object and the mass of the object.