Patent Document ID: 20030123718
Application ID: 10033952
Patent Status: 0

Claim One:
1. A method for volumetric reconstruction of a cyclically moving object using a computed tomography (CT) imaging system, said method comprising: scanning a cyclically moving object with a CT imaging system including at least one of an area detector and a linear detector to encompass the desired field of view and a rotating gantry to measure projection data during a plurality of cycles of the cyclically moving object; dividing a period of the cyclically moving object into a discrete number of phases; identifying an initial set of projection data at a desired phase of a first cycle at a first angle; identifying at least one subsequent set of projection data at the same desired phase of a subsequent cycle at an angle that is different from the first angle; combining the initial set of projection data with each subsequent set of identified projection data and using a reconstruction algorithm to generate a three-dimensional image; repeating said identifying an initial set of projection data at a desired phase of a first cycle at a first angle, identifying at least one subsequent set of projection data at the same desired phase of a subsequent cycle at an angle that is different from the first angle, and combining the initial set of projection data with each subsequent set of identified projection data and using a reconstruction algorithm to generate a collection of three-dimensional images for the desired phases; and temporally filtering the collection of three-dimensional images on a pixel by pixel basis.