JP2016036515A5

JP2016036515A5 -

Info

Publication number: JP2016036515A5
Application number: JP2014161597A
Authority: JP
Filing date: 2014-08-07
Publication date: 2017-09-14

Description

本発明の実施形態に係るＸ線診断装置は、撮影系と位置決め情報取得部とを備える。撮影系は、マーカを有するファントムをＸ線により撮影する。位置決め情報取得部は、前記撮影系により撮影された２次元のＸ線画像データから前記マーカの位置を検出し、検出された前記マーカの位置に基づいて、寝台の水平方向における目標位置を取得する。 An X-ray diagnostic apparatus according to an embodiment of the present invention includes an imaging system and a positioning information acquisition unit. The imaging system images a phantom having a marker with X-rays . The positioning information acquisition unit detects the position of the marker from the two-dimensional X-ray image data captured by the imaging system, and acquires a target position in the horizontal direction of the bed based on the detected position of the marker. .

Claims

An imaging system for imaging a phantom having a marker with X-rays ;
A positioning information acquisition unit that detects the position of the marker from two-dimensional X-ray image data captured by the imaging system, and acquires a target position in the horizontal direction of the bed based on the detected position of the marker;
An X-ray diagnostic apparatus comprising:

The phantom has a plurality of markers,
The plurality of markers include markers that are different in size from other markers ,
The positioning information acquisition unit detects the position of the marker having the different size from the two-dimensional X-ray image data imaged by the imaging system, and based on the detected position of the marker having the different size , The X-ray diagnostic apparatus according to claim 1 , wherein a target position in the horizontal direction is acquired .

The positioning information acquisition unit is configured to acquire a target position in the height direction of the bed based on the length of a predetermined portion of the phantom in the two-dimensional X-ray image data imaged by the imaging system. The X-ray diagnostic apparatus according to claim 1 or 2 .

The positioning information acquisition unit obtains a distance to a target position in the height direction and the horizontal direction of the bed based on at least two frames of two-dimensional X-ray image data taken from the same direction. X-ray diagnostic apparatus according to any one of constituted claims 1 to 3.

The positioning information acquisition unit detects the positions of at least four markers and the length of a predetermined portion of the phantom from the two-dimensional X-ray image data captured by the imaging system , and detects between the first two markers. The height of the bed based on the ratio of the distance between the first two markers and the distance between the second two markers at different positions in the height direction of the bed and the length of the predetermined portion of the phantom X-ray diagnostic apparatus according to any one of constituted claims 1 to 4 to determine the distance to the target position in the direction.

The positioning information acquisition unit obtains the distance to the target position in the height direction of the bed based on at least one of the distance between the focal point of the X-ray tube and the detection surface of the X-ray detector and the imaging field of view. The X-ray diagnostic apparatus according to claim 4 or 5, which is configured.

The positioning information acquiring section, X-rays diagnostic apparatus according to any one of claims 4 to 6 configured to present said distance on a display device.

X-ray diagnostic apparatus according to any one of claims 1 to 7 further comprising a couch controller for the bed to control the position of the bed so that the target position based on the distance.