JP2016007435A5

JP2016007435A5 -

Info

Publication number: JP2016007435A5
Application number: JP2014130526A
Authority: JP
Filing date: 2014-06-25
Publication date: 2017-06-29
Anticipated expiration: 2034-06-25

Claims

An X-ray diagnostic apparatus that executes an imaging operation for generating projection data of a plurality of time-series X-ray images by detecting X-rays transmitted through a subject,
Said By acquire projection data chronological plurality of detention before X-ray image generated by the imaging operation before the indwelling vascular treatment instrument into the subject, is inserted into the subject in a blood vessel of After detecting the position of the measuring device from the plurality of pre-in-dwelling X-ray images, the time-series projection data of the plurality of post-in-dwelling X-ray images generated in the imaging operation after the placement of the vascular treatment tool is obtained in real time. A position detecting unit that detects the position of the measuring device from the plurality of post-indwelling X-ray images,
Based on each position of the measurement device detected by the position detection unit, a cycle of a position change of the measurement device is set for the plurality of pre-in-placement X-ray images and the plurality of post-in-placement X-ray images. A period detection unit for detecting each;
Based on the position change period of the measurement apparatus, a phase matching process is performed for associating the pre-in-placement X-ray images with the close phase changes of the measurement apparatus with respect to the plurality of post-in-placement X-ray images. A phase matching unit;
Based on the result of the phase matching process, the position information of the measuring device in the pre-in-placement X-ray image with the close phase is superimposed on the plurality of post-in-placement X-ray images, respectively, An X-ray diagnostic apparatus comprising: a display unit that displays an X-ray image.

The position detector is
By acquiring projection data of the plurality of time-series pre-indwelling X-ray images in real time, the positions of the measuring devices inserted into the blood vessels of the subject are respectively real-time from the plurality of pre-indwelling X-ray images. Detect with
The X-ray diagnostic apparatus according to claim 1.

An X-ray diagnostic apparatus that executes an imaging operation for generating projection data of a plurality of time-series X-ray images by detecting X-rays transmitted through a subject,
Projection data of a plurality of time-series past X-ray images generated and stored in the past imaging operation are acquired, and a plurality of time-series real-time X-rays generated in the imaging operation being executed in real time A position detection unit that detects the position of the measurement device inserted into the blood vessel of the subject from the plurality of past X-ray images and the plurality of real-time X-ray images by acquiring projection data of the image;
Based on each position of the measurement device detected by the position detection unit, a period of position change of the measurement device is detected for each of the plurality of past X-ray images and the plurality of real-time X-ray images. A period detector that performs
A phase for executing a phase matching process for associating the past X-ray image with the closest phase of the position change of the measurement device with each of the plurality of real-time X-ray images based on the position change cycle of the measurement device. A collation unit;
Based on the result of the phase matching process, the plurality of real-time X-rays are superimposed on the plurality of real-time X-ray images while the position information of the measuring device in the past X-ray image having the closest phase is superimposed on the plurality of real-time X-ray images. An X-ray diagnostic apparatus comprising: a display unit that displays an image.

The X-ray diagnostic apparatus according to any one of claims 1 to 3 ,
The period detector is
Detecting a position change amount of the measuring device between two successive X-ray images;
An arbitrary X-ray image in which the position change amount between the imaging time and the next X-ray image is a minimum value is specified as a first reference X-ray image,
The position change amount becomes a minimum value next to the first reference X-ray image, and the position of the measurement device is higher than the X-ray images before and after the imaging time of the measurement device in the first reference X-ray image. Identify a second reference X-ray image close to the position,
Detecting from the first reference X-ray image to an X-ray image one imaging time before the second reference X-ray image as an X-ray image group of one cycle of position change of the measuring device. A characteristic X-ray diagnostic apparatus.

An X-ray diagnostic apparatus that executes an imaging operation for generating projection data of a plurality of time-series X-ray images by detecting X-rays transmitted through a subject,
Projection data of a plurality of time-series X-ray images before placement generated and stored in the imaging operation before placement of the vascular treatment device in the subject is acquired, and the plurality of pre-placement X-ray images are displayed. A display unit to
By acquiring projection data of a plurality of post-in-dwelling X-ray images generated by the imaging operation after the placement of the vascular treatment device, the position of the measurement device inserted into the blood vessel of the subject is determined. A position detector that detects each of the plurality of post-indwelling X-ray images in real time;
Input information on a period of change in position of the measuring device in the plurality of pre-indwelling X-ray images is acquired after the display of the plurality of pre-indwelling X-ray images, and the plurality of pre-indwelling Xs are obtained based on the input information. After determining the period of position change of the measurement device with respect to the line image, the position of the measurement device with respect to the plurality of post-in-placement X-ray images based on the position of the measurement device detected by the position detection unit A period detector for detecting the period of change;
Based on the period of change in position of the measurement device, a phase matching process is performed for associating the pre-placement X-ray image with the closest phase change of the measurement device with respect to the plurality of post-placement X-ray images. And a phase matching unit that
The display unit superimposes the position information of the measurement device on the pre-in-placement X-ray image having the closest phase on the plurality of post-in-placement X-ray images based on the result of the phase matching process. The X-ray diagnostic apparatus characterized by displaying the plurality of post-indwelling X-ray images.

The X-ray diagnostic apparatus according to any one of claims 1 to 5 ,
When the blood pressure is measured by the measurement device at the first point and the second point across the placement position of the vascular treatment device during the execution of the imaging operation before the placement of the vascular treatment device,
The period detection unit detects a first period of a position change of the measuring device with respect to a first X-ray image group which is a plurality of time-series X-ray images before indwelling at the time of blood pressure measurement at the first point. And detecting a second period of position change of the measuring device with respect to a second X-ray image group which is a plurality of time-series X-ray images before indwelling at the time of blood pressure measurement at the second point,
The phase matching unit, as the phase matching process based on the first period and the second period, has a phase closest to each other in the first X-ray image group with respect to the plurality of post-in-placement X-ray images. Associating the pre-indwelling X-ray image and associating the pre-indwelling X-ray image having the closest phase in the second X-ray image group;
The display unit, when displaying the plurality of post-in-dwelling X-ray images, position information of the measuring device in the pre-indwelling X-ray image having the closest phase in the first X-ray image group, and the second X-ray image An X-ray diagnostic apparatus characterized by superimposing position information of the measuring apparatus on the pre-indwelling X-ray image having the closest phase in the group.

The X-ray diagnostic apparatus according to any one of claims 1 to 6 ,
The said position detection part detects the position of the device which measures blood pressure as said measuring device. X-ray diagnostic apparatus characterized by the above-mentioned.