Patent ID: 7693252
Filing Date: 2010-04-06
Classification: A61B

Abstract:
1. A medical image display apparatus which generates a computed tomogram, which is to be obtained by X-ray computed tomography, by simulation in a simulated manner, comprising: a storage unit which stores first projection data which is raw data obtained on the basis of exposure of X-rays to a subject to be examined; an input unit to input information with respect to X-ray dose; a calculation unit which calculates noise information on the basis of the information with respect to X-ray dose; a projection data generating unit which generates second projection data on the basis of the first projection data and the noise information, the second projection data being obtained by performing predetermined processing at least including inverse logarithmic transformation for the raw data and being predicted to be obtained by X-ray computed tomography using the information with respect to X-ray dose; and an image generating unit which generates a simulation image by using the second projection data; wherein the predetermined processing further includes first addition processing of adding calibration processing to the raw data and second addition processing of adding reference information to the raw data, the reference information being associated with the intensity of X-rays detected by a dedicated detector provided near an X-ray tube to detect exposed X-rays which are not transmitted through a subject at the time of exposure of X-rays.