Patent ID: 6754301
Filing Date: 2004-06-22
Classification: A61B

Abstract:
An operation console for producing a tomographic image of a region to be examined based on projection data of said region to be examined, comprising:a transmitting/receiving device for transmitting to an external apparatus instructions for collecting projection data, and receiving said projection data collected by said apparatus, wherein said external apparatus collects projection data at each scan position in a region to be examined in a subject by emitting X-rays in a predefined direction onto said region to be examined and carrying said subject; a first calculating device for calculating a first control value for controlling the amount of X-rays emitted by said apparatus on each scan position during a scan, based on the projection data at each scan position received by said transmitting/receiving device and the particulars of said instructions, wherein the first control value (mAt) comprises a predetermined target image quality level (&rgr;target); a second calculating device for calculating a second control value for controlling the amount of X-rays according to the emitting angle of said X-rays emitted by said apparatus onto each scan position during a scan, wherein the second control value (mAb) is defined in accordance with mAb=mAtÃ—R where mAt is the first control value, and R is a ellipticity of an object scanned; and wherein said transmitting/receiving device further transmits to said apparatus instructions for conducting a scan based on a ratio of said first and second control values.