Patent ID: 7627079
Filing Date: 2009-12-01
Classification: G01T,Y10S

Abstract:
1. A method for determining a radiation dose delivered to a patient during a computed tomography (CT) scan of the patient, comprising: subjecting a patient to an x-ray beam from an x-ray source; determining a primary x-ray radiation dose from the x-ray beam; determining a scattered x-ray radiation dose from the x-ray beam; inputting properties from the x-ray source; wherein determining the primary x-ray radiation dose comprises calculating a primary dose distribution from CT scan image data generated during the CT scan of the patient; and calculating a radiation dose delivered to the patient based on the primary x-ray radiation dose and scattered x-ray radiation dose; wherein said properties are used to calculate the primary dose distribution; wherein one of said properties comprises a mA modulation scheme of the x-ray source; wherein the mA modulation scheme is used to compute the radiation dose delivered to the patient.