While in the suffering inspection body being opposed being arranged the x-ray of the energy spectrum where plural differs in x-ray source and x-ray source of lighting possible at least 1 or more and the detector which detects the transmitted x-ray data of the aforementioned suffering inspection body, producing the x-ray the scanner section which it turns moves around the aforementioned suffering inspection body and, Transmission X of the aforementioned suffering inspection body of the energy spectrum where two or more differs depending upon the aforementioned scanner sectionObtaining the line data, the reconstruction expedient which reconstructs the coaxial tomography of the aforementioned suffering inspection body and, The description above in the x-ray CT device which has with the indicatory expedient which indicates the coaxial tomography which was reconstructed, From on the aforementioned coaxial tomography, the input expedient which inputs the information regarding the separation organization which we would like to separate from the identification organization and the aforementioned identification organization of the aforementioned suffering inspection body which it should identify and, The image pickup conditional decisive expedient which decides the image pickup condition in order to identify the aforementioned identification organization was had from the aforementioned coaxial tomography. Because of this, it became possible to decide optimum image pickup condition in the multiple energy type x-ray CT device.複数の異なるエネルギースペクトルのX線を被検体に照射可能な少なくとも1以上のX線源と、X線源に対向配置され前記被検体の透過X線データを検出する検出器とを、X線を照射しながら前記被検体の周囲を回転移動させるスキャナ部と、前記スキャナ部によって2つ以上の異なるエネルギースペクトルの前記被検体の透過X線データを得て前記被検体の断層像を再構成する再構成手段と、前記再構成された断層像を表示する表示手段とを備えたX線CT装置において、前記断層像上より、識別すべき前記被検体の識別組織及び前記識別組織と分離したい分離組織に関する情報を入力する入力手段と、前記断層像より前記識別組織を識別するための撮像条件を決定する撮像条件決定手段を備えた。これにより、マルチエネルギー型X線CT装置において最適な撮像条件を決定することが可能となった。
