JP2016043129A5

JP2016043129A5 -

Info

Publication number: JP2016043129A5
Application number: JP2014170829A
Authority: JP
Filing date: 2014-08-25
Publication date: 2017-08-31
Anticipated expiration: 2034-08-25

Description

上記目的を達成するために、実施形態のＸ線診断装置は、寝台上の被検体にＸ線を照射し、前記被検体を透過したＸ線を検出してＸ線投影データを生成する撮影部と、前記Ｘ線投影データに基づいて画像データを生成する画像データ生成部と、前記画像データを収集する収集条件を算出する収集条件算出部と、予め設定された第１の撮影条件に基づいて前記寝台及び前記撮影部の少なくとも一方が移動しながらＸ線照射を行う第１の長尺撮影により生成された画像データを前記第１の撮影条件に基づいて算出される収集条件で収集し、前記第１の長尺撮影が行われているときに前記第１の撮影条件の変更入力により設定された第２の撮影条件に基づいて前記少なくとも一方が移動しながらＸ線照射を行う第２の長尺撮影により生成された画像データを前記第２の撮影条件の設定に応じて算出される収集条件で収集する収集部とを備えたことを特徴とする。 In order to achieve the above object, an X-ray diagnostic apparatus according to an embodiment irradiates a subject on a bed with X-rays, detects X-rays transmitted through the subject, and generates X-ray projection data An image data generation unit that generates image data based on the X-ray projection data, a collection condition calculation unit that calculates a collection condition for collecting the image data, and a first imaging condition that is set in advance Collecting at least one of the bed and the imaging unit moving the image data generated by the first long imaging that performs X-ray irradiation while moving under a collection condition calculated based on the first imaging condition; A second length for performing X-ray irradiation while the at least one moves based on the second imaging condition set by the first imaging condition change input when the first long imaging is performed Image generated by taking a scale Characterized by comprising a collecting unit that collects in collection condition calculated according to chromatography data set of the second imaging condition.

Claims

An imaging unit that irradiates a subject on a bed with X-rays, detects X-rays transmitted through the subject, and generates X-ray projection data; and image data that generates image data based on the X-ray projection data X-ray irradiation while moving at least one of the bed and the imaging unit based on a first imaging condition set in advance, a generation unit, a collection condition calculation unit that calculates a collection condition for collecting the image data Image data generated by the first long photographing performed is collected under a collection condition calculated based on the first photographing condition, and the first long photographing is performed when the first long photographing is performed. The image data generated by the second long imaging in which the X-ray irradiation is performed while the at least one of them moves based on the second imaging condition set by the imaging condition change input is set as the second imaging condition. Calculated according to X-ray diagnostic apparatus characterized by comprising a collecting unit that collects the condition.

As the first imaging condition , a first speed that is the at least one moving speed and a first incident region of X-rays that enter the X-ray detection unit that detects X-rays transmitted through the subject, The first incident area length in the at least one moving direction, the image data collected by the collecting unit in the first incident area, and the image data collected after the image data is collected are pasted. The overlapping region length in the at least one moving direction of the overlapping region corresponding to the bonding region to be combined is set, and the collection condition calculated based on the first imaging condition is based on the first incident region length. A first collection rate calculated by dividing the first speed by a value obtained by subtracting the overlap area length, and the collection unit obtains image data generated by the first long photographing, Previous X-ray diagnostic apparatus according to claim 1, wherein the collecting the first collection rate.

The second incident region length in the at least one moving direction of the second incident region of the X-rays incident on the X-ray detection unit from the first incident region length by the change input of the first imaging condition. The acquisition condition calculated in accordance with the setting of the second imaging condition is divided by 2 to divide the sum of the first incident area length and the second incident area length by two. Is a second collection rate calculated by dividing the first speed by a value obtained by subtracting, and the collection unit collects the first collection of image data generated by the second long-length imaging. The X-ray diagnosis apparatus according to claim 2, wherein the X-ray diagnosis apparatus is performed at the second acquisition rate.

The collection condition calculated according to the setting of the second imaging condition is a third condition calculated by dividing the first velocity by a value obtained by subtracting the overlap area length from the second incident area length. 4. The collection rate according to claim 3, wherein the collection unit performs second and subsequent collections of image data generated by the second long photographing at the third collection rate. 5. X-ray diagnostic equipment.

An X-ray that includes a position detection unit that detects the at least one position, and detects the first speed that is the at least one moving speed and the X-ray that has passed through the subject as the first imaging condition ; The first incident region length in the at least one moving direction of the first incident region of the X-rays incident on the detection unit, the image data collected by the collecting unit in the first incident region, and this An overlapping area length in the at least one moving direction of an overlapping area corresponding to a pasting area where the image data collected after the image data is collected is set, and based on the first imaging condition The calculated collection condition is a first distance calculated by subtracting the overlap region length from the first incident region length, and the collection unit is the previous distance detected by the position detection unit. Based on at least one of position information, said first of said at least one of the direction of movement (n is a positive number) the image data generated n-th from the collected and gathered in the n-th position by the long region imaging 2. The X-ray diagnostic apparatus according to claim 1, wherein image data generated by the first long imaging at a position moved at the first distance is collected (n + 1) times.

The second incident region length in the at least one moving direction of the second incident region of the X-rays incident on the X-ray detection unit from the first incident region length by the change input of the first imaging condition. The acquisition condition calculated in accordance with the setting of the second imaging condition is divided by 2 to divide the sum of the first incident area length and the second incident area length by two. Image data generated by the first long photographing based on the at least one position information detected by the position detection unit. The image data generated by the second long photographing is collected at a position where the at least one has moved the second distance in the moving direction from the position where the image was last collected. X-ray diagnostic apparatus as described

The collection condition calculated according to the setting of the second imaging condition is a third distance calculated by subtracting the overlap area length from the second incident area length, and the collection unit based on the at least one of the position information detected by the position detection unit, wherein said at least one of which moves said third distance to said at least one of the moving direction from the position moved the second distance position the The X-ray diagnostic apparatus according to claim 6, wherein image data generated by the long imaging of 2 is collected.

An imaging unit that irradiates a subject on a bed with X-rays, detects X-rays transmitted through the subject, and generates X-ray projection data; and image data that generates image data based on the X-ray projection data A generation unit, a collection condition calculation unit that calculates a collection condition for collecting the image data, a position detection unit that detects a position of at least one of the bed and the imaging unit, and a first imaging condition that is set in advance Based on the image data generated by the first long photographing in which the X-ray irradiation is performed while the at least one moves based on the first photographing condition when the first long photographing is performed. Based on the first imaging condition, image data generated by the second long imaging in which X-ray irradiation is performed while the at least one moves based on the second imaging condition set by the change input. Calculated X-ray diagnostic apparatus characterized by comprising a collecting unit that collects, based on the current condition and the at least one of the position information.

As the first imaging condition , a first speed that is the at least one moving speed and a first incident region of X-rays that enter the X-ray detection unit that detects X-rays transmitted through the subject, The first incident area length in the at least one moving direction, the image data collected by the collecting unit in the first incident area, and the image data collected after the image data is collected are pasted. The overlapping region length in the at least one moving direction of the overlapping region corresponding to the bonding region to be combined is set, and the collection condition calculated based on the first imaging condition is based on the first incident region length. a first distance calculated by subtracting the overlap area length, the by changing the input of the first imaging condition, is changed and set from the first speed to the second speed, said collection unit, the Without even collecting fluoroscopic image data in which one is generated by the first or second elongate taken at that position every time passing through the at least one of the first distance away in the moving direction and moving The X-ray diagnostic apparatus according to claim 8.

A display unit that displays the image data generated by the image data generation unit, the image data collected by the collection unit, and the image data collected next to the image data are pasted together in the pasting area to be long. An image data pasting unit that generates image data, and the image data pasting unit creates the long image data by pasting the image data collected by the collecting unit for each collection of the collecting unit; The X-ray diagnosis apparatus according to claim 1, wherein the display unit displays in real time long image data generated for each collection by the collection unit.

The X-ray according to any one of claims 1 to 10, wherein the image data is fluoroscopic image data generated by continuously irradiating the subject with X-rays for fluoroscopy. Diagnostic device.