JP2010017215A5

JP2010017215A5 -

Info

Publication number: JP2010017215A5
Application number: JP2008177699A
Authority: JP
Filing date: 2008-07-08
Publication date: 2011-08-11
Anticipated expiration: 2028-07-08

Claims

An X-ray source;
An X-ray detector disposed opposite to the X-ray source across the subject;
Scan control means for performing imaging by exposing X-rays from the X-ray source according to imaging conditions that change with time;
Reconstruction processing means for generating image data by performing reconstruction processing in accordance with preset reconstruction conditions for the X-ray projection data acquired by the imaging;
A time chart creating means for creating a time chart representing a time change of examination information including the imaging condition and the reconstruction condition;
Display control means for displaying the time chart, the imaging conditions, and the reconstruction conditions on a display means;
Designating means for designating a new reconstruction conditions Te on the screen that is displaying the time chart, and the reconstruction conditions is displayed on the display means,
Have
The X-ray CT apparatus, wherein the reconstruction processing means generates new image data by performing a reconstruction process in accordance with the specified new reconstruction condition.

And editing means for an indication of changes in the test information, accepted by the time chart is displayed on the display means, changes the test information,
Storage means for storing the changed examination information,
The X-ray CT apparatus according to claim 1, wherein the scan control unit performs the imaging according to an imaging condition included in the changed examination information.

Analysis that generates a curve representing a process in which the contrast agent is deeply stained in the subject based on X-ray projection data acquired by performing the imaging in a state where the contrast agent is injected into the subject. Further comprising means,
The X-ray CT apparatus according to claim 2, wherein the display control unit causes the display unit to display a curve representing the process of the deep dyeing on the same time axis as the time chart.

The X-ray according to claim 2, wherein the display control unit receives an electrocardiogram waveform or a respiratory waveform obtained from the subject and causes the display unit to display the waveform on the same time axis as the time chart. CT device.

The reconstruction processing means, when the time zone to be Oite reconstruction process in the time chart being displayed on the display means is designated by said designating means, which is acquired in the specified time period The X-ray CT apparatus according to claim 1, wherein the image data is generated based on X-ray projection data.

Wherein the display control unit, to said display means to display an image based on image data generated by the new reconstruction conditions, further Oite to the time chart, the time in which the image data is generated The X-ray CT apparatus according to claim 5, wherein the band is displayed in an identifiable manner.

The time chart creation means creates the time chart by representing a scan sequence in which a plurality of scan elements controlled by a plurality of imaging conditions are ordered by a time change of a tube current supplied to the X-ray source. The X-ray CT apparatus according to claim 1, wherein:

The time chart creation means creates the time chart by representing a scan sequence in which a plurality of scan elements controlled by a plurality of imaging conditions are ordered as a time change of a tube current supplied to the X-ray source,
It said specifying means specifies the scan element to be Oite reconstruction process in the time chart being displayed on the display means,
The reconstruction processing unit is operable, when the scan element to be Oite reconstruction process in the time chart being displayed on the display means is designated by said designating means, obtained by the designated scanning element The X-ray CT apparatus according to claim 1, wherein the image data is generated based on X-ray projection data.

Wherein the display control unit, to said display means, said display the image based on the image data generated by the new reconstruction conditions, further Oite to the time chart, identifying the specified scanning element The X-ray CT apparatus according to claim 8, wherein the X-ray CT apparatus is capable of displaying on the display means.

The display control means causes the display means to display a positioning image acquired in advance, and enables the range of the subject to be subjected to the reconstruction process to be identified in the positioning image. The X-ray CT apparatus according to claim 1, wherein the X-ray CT apparatus is displayed.