Methods And Systems For Calibration

摘要

The methods and systems for calibration are provided. For example, radiographic image density such as Hounsfield unit can be calibrated to facilitate tissue characterization of tumors or fluids when imaged at differing energy levels. The disclosed methods and systems can perform coronary calcium scanning at a radiation dose comparable to that of a chest X-ray or mammogram, and provide an accurate coronary calcium score as provided by a conventional high radiation coronary calcium scanning. An example method can comprise receiving first image data related to a first scan at a first energy level, receiving second image data related to a second scan at a second energy level, co-registering the first image data and the second image data, processing the co-registration of the first image data and the second image data to determine a calibration formula, and generating a score for the second image data based on the co-registration.

主权项

1. A method comprising:
receiving first image data related to a first scan at a first energy level; receiving second image data related to a second scan at a second energy level; co-registering the first image data and the second image data; processing the co-registration of the first image data and the second image data to determine a calibration formula; and generating a score for the second image data based on the calibration formula.