| 摘要 |
A computed tomography x-ray imaging system (10) acquires a three-dimensional array of x-ray attenuation values using a cone beam x-ray source (13) and a curved two-dimensional array (16) of detector elements. Two-dimensional image slices are reconstructed using a filtered backprojection method, and corrections are made to the images to account for inaccuracies in the reconstruction method and for incomplete data due to the cone beam geometry. |
