Patent ID: 7436924

Claim:
An X-ray computed tomographic system, comprising: a first X-ray computed tomography apparatus; a second X-ray computed tomography apparatus; and a data managing system connected to said first and second X-ray computed tomography apparatuses via a network, wherein said first X-ray computed tomography apparatus includes an X-ray irradiating unit configured to irradiate an X-ray to a subject while rotating about the subject; an X-ray detecting unit having a plurality of detecting element arrays aligned in a slice direction, in each of which a plurality of detecting elements, each generating electrical charges based on an incident X-ray, are aligned in a channel direction; a data acquisition unit, having a plurality of data acquisition element arrays, configured to read out the electrical charges from said plurality of detecting elements by using a certain number of data acquisition element arrays among said plurality of data acquisition element arrays and to generate raw data or projection data based on the electrical charges; and a first transmission unit configured to transmit, via said network to said data managing system, said raw data or projection data and appended information including the number of data acquisition element arrays used when reading out the electrical charges, said data managing system includes a first reception unit configured to receive said raw data or projection data and said appended information; a storage unit configured to store said raw data or projection data and said appended information received; a determining unit configured to determine, based on said appended information, whether image reconstruction by using one of said raw data and said projection data is possible in said second X-ray computed tomography apparatus; and a second transmission unit configured to transmit one of said raw data and said projection data, and said appended information to said second X-ray computed tomography apparatus when said determining unit determines that reconstruction is possible, and said second X-ray computed tomography apparatus includes a second reception unit configured to receive said raw data or projection data and said appended information; and a reconstruction unit configured to perform image reconstruction based on said raw data or projection data and said appended information received.