JPH02140149A - X-ray diagnostic device - Google Patents

Abstract

PURPOSE:To reduce the operating burden of an operator by reading photographic angle data stored in a memory after operation and rotating an arm to a correspondent photographic angle position based on these photographic angle data. CONSTITUTION:A photographic angle is detected by the encoder of a supporter 4 and successively inputted to a supporter controller 6. The photographic angle data are written to a picture and photographic angle memory 7, which stores a digitized load mapping picture, by the control of the supporter controller 6. After the operation, the photographic angle data are read from the memory 7, which stores the photographic angle data before the operation in advance, and given to the supporter 4. An arm 3 is rotated to the photographic angle position, which corresponds to the photographic angle data, by the supporter 4. Accordingly, since the photographic angle after the operation is speedily and securely realized to the photographic angle before the operation, namely, the desired photographic angle which is suitable for a specified patient, it is not necessary for the operator to execute fine adjustment. Then, the operating burden of the operator can be widely reduced.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is a method of exposing a patient to X-rays from an X-ray tube, and photographing the X-rays that have passed through the patient from the X-ray tube. The present invention relates to an X-ray diagnostic device that takes images, and particularly relates to an X-ray diagnostic device that performs X-ray imaging of the circulatory system by rotating an arm connecting the X-ray tube and the imaging device to change the imaging angle position.

(Prior Art) In an X-ray diagnostic apparatus for the circulatory system, an arm connecting an X-ray tube and an imaging device is rotated to change the imaging angle position to perform X-ray imaging of the circulatory system. Furthermore, recently, in order to facilitate the positioning of the arm at the photographing angle, several photographing angles necessary for clinical practice are selected in advance and these photographing angles are stored in a memory. It has now become possible to selectively read photographing angle data from memory and automatically move the arm to the photographing angle with a single button operation.

The photographing angle data at the time of photographing may be used later, so the photographing angle is important. Therefore, the photographing angle data is not only written down but also imprinted on the film at the same time.

Furthermore, the photographing angle data is superimposed on one corner of the screen of a CRT that displays a digital image.

On the other hand, in recent PTCA, in vasodilation using a catheter during fluoroscopy, a road mapping image is read out from a memory that stores the road mapping image, and the surgeon, while looking at the road mapping image, The blood vessels are dilated. It is important to know how the vascular entrapment rate changes after such vasodilatation procedures are performed. For this reason, there is an increasing need to faithfully reproduce the imaging angle taken before surgery again after surgery.

By the way, in order to reproduce this photographing angle, the photographing angle stored in the memory described above is read out, thereby making it possible to reproduce the photographing angle position relatively easily after the surgery.

(Problems to be Solved by the Invention) However, only a small number of angles that are relatively useful in clinical practice are stored in the imaging angles described above, and these are not imaging angles that correspond to a specific patient. For this reason, for a particular patient, a photographing angle that is closest to the patient's condition among the preset photographing angles is read out from the memory, and the arm is thereby moved to that photographing angle. Fine adjustments were then made from that arm position to match the optimal imaging angle position for a particular patient. For this reason, it took time to make adjustments, and the operation was difficult, placing a burden on the operator.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an X-ray diagnostic apparatus that can quickly and reliably reproduce a preoperative imaging angle to a desired imaging angle that suits the patient after surgery, and can reduce the operating burden on the operator. There is a particular thing.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems and achieve the objects, the present invention takes the following measures. The present invention is an X-ray device that irradiates a patient with X-rays.
An arm that connects a radiation source and an imaging system for imaging X-rays transmitted through the patient from the X-ray source and rotates to an arbitrary imaging angle position; an operation for rotating this arm to the imaging angle position; a support device that performs an operation of detecting the imaging angle of the arm; a memory that stores in advance an X-ray image of the patient and the imaging angle detected from the support device; Control for storing the angle; after surgery, the photographing angle data stored in the memory is read out, and the photographing angle is set on the support so that the arm is rotated to the corresponding photographing angle position based on the photographing angle data. A control means for controlling data giving is provided.

(Effects) By taking such measures, the following effects are achieved. During the postoperative period, the photographing angle data is successively retrieved from a memory that previously stored the photographing angle data before the surgery, and is applied to the support device. Then, the arm is rotated by the support to a photographing angle position corresponding to the photographing angle data. Therefore, the postoperative imaging angle can be quickly and reliably reproduced to the preoperative imaging angle, that is, the desired imaging angle that suits the specific patient. The operating burden can be significantly reduced.

(Embodiment) FIG. 1 is a schematic configuration diagram showing an embodiment of an X-ray diagnostic apparatus according to the present invention. In the figure, the X-ray diagnostic apparatus is configured as follows.

The X-ray tube I radiates X-rays to a patient (not shown), and the image intensifier 2 (hereinafter referred to as l).

It is abbreviated as I. ) is disposed opposite the X-ray tube 1 and converts the X-rays transmitted through the patient into an optical image. The arm 3 has a C-shape, and the X-ray tube I is attached to one end of the arm 3, and the X-ray tube I is attached to the other end of the arm 3.
．． I2 is attached to connect the X-ray tube I and I, I2. Further, a supporter 4 attached to the ceiling 4a via a support shaft 5 is provided near the center of the arm 3, and the supporter 4 allows the X-ray tubes 1 and 1. I2 is supported. As the arm 3 rotates about the support shaft 5, the X-ray tubes 1 and 1.12 rotate in the horizontal direction,
The imaging angle position of the patient can be set.

On the other hand, X-ray tube 11. Spot device 12. Arm 13 also
Said X-ray tube1. Spot device 2. It has the same configuration as arm 3. Further, a supporter 14 is provided near the center of the arm 13 and is attached to the floor 14a via a support shaft 15.
The X-ray tube 11 and ■ are supported by the supporter 14.

112 is supported. Note that by rotating the arm 13 about the support shaft 15 as the rotation axis, the X-ray tube 11 and 1.
112 rotates in the vertical direction, and the imaging angle position of the patient can be set. The supporter 4.degree. 14 rotates the arms 3, 13 to a desired photographing angle position, and rotates the arms 3, 13 to a desired photographing angle position. It has an encoder that detects the shooting angle of I3. The image/shooting angle memory 7 is P
The road mapping image of the patient during TCA is stored, and the imaging angle of the patient detected from the supports 4 and 14 is stored in advance. The support device controller 6 performs control to store the road mapping image of the patient in the image/photographing angle memory 7, and also reads the photographing angle data stored in the memory 7 after the surgery, Control is performed to give photographing angle data to the supports 4, 14 so as to rotate the arms 3, 13 to corresponding photographing angle positions based on the angle data. That is, the support device controller 6 controls the support devices 4 and 14.
The system provides an appropriate imaging angle corresponding to the road mapping image of a particular patient.

The X-ray diagnostic apparatus configured as described above operates as follows.

First, the preoperative movements will be explained. The imaging angle is detected by the encoder of the support 4 and sequentially input to the support controller 6. The photographing angle data is then written into the image/photographing angle memory 7 which stores the digitized road mapping image under the control of the support controller 6.

Next, the operation of reproducing the above-mentioned photographing angle after the surgery will be explained. When a selection switch (not shown) is pressed, the photographing angle data stored in the image/photographing angle memory 7 is read out from the image/photographing angle memory 7 by the support controller 6. Then, the photographing angle data is set by the support controller 6.
A support 4 is provided, by means of which the arm 3 is rotated to an imaging angular position corresponding to said particular patient. Note that the operation of the supporter 14 for rotating the arm 13 also operates like the supporter 4 described above.

As described above, according to this embodiment, at the time of surgery, the photographing angle data is stored in the memory 7 that has previously stored the preoperative photographing angle data.
The signal is read out from the holder 4 and applied to the supporter 4. and supporter 4
Accordingly, the arm 3 rotates to the photographing angle position corresponding to the photographing angle data.

Therefore, the postoperative imaging angle can be quickly and reliably reproduced to the preoperative imaging angle, that is, the desired imaging angle that suits the specific patient. The operating burden can be significantly reduced.

Note that the present invention is not limited to the embodiments described above. In the embodiment described above, an encoder is used as the support 4°I4, but a potentiometer may also be used, for example.

It goes without saying that various other modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] According to the present invention, an X-ray source that irradiates X-rays to a patient and an imaging system that photographs X-rays that have passed through the patient from this X-ray source are connected and can be set at any imaging angle position. A rotating arm and
A support device that rotates the arm to the imaging angle position and detects the imaging angle of the arm during imaging, and an X-ray photographed image of the patient and the imaging angle detected from the support device. a memory that stores in advance the photographed image and the photographing angle, and a control that stores the photographed image and photographing angle in this memory, reads the photographing angle data stored in the memory at the time of surgery, and determines the corresponding photographing angle position based on the photographing angle control. and a control means that controls giving the photographing angle data to the supporter so as to rotate the arm, so that the preoperative photographing angle can be quickly changed to a desired photographing angle that suits the patient after the surgery. In addition, it is possible to provide an X-ray diagnostic apparatus that can reliably reproduce images and eliminates the need for the operator to make fine adjustments to the imaging angle, thereby reducing the operating burden on the operator.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of an X-ray diagnostic apparatus according to the present invention. 1.11...X-ray tube, 2,12...image intensifier, 3,13...arm, 4.14...
Support, 4a...Ceiling, 5.15...Spindle, 8...
・Support controller, 7...Image/photographing angle memory, 14
a...floor.

Claims (1)

[Claims] An arm that connects an X-ray source that irradiates X-rays to a patient and an imaging system that photographs X-rays transmitted through the patient from the X-ray source and that rotates to an arbitrary imaging angle position; a support device that performs an operation of rotating the arm to a position and an operation of detecting an imaging angle of the arm during imaging, and a memory that stores in advance an X-ray photographed image of the patient and the imaging angle detected from the support device; , control to store the photographed image and photographing angle in this memory, read the photographing angle data stored in the memory at the time of surgery, and rotate the arm to a corresponding photographing angle position based on this photographing angle data. An X-ray diagnostic apparatus comprising: a control means for controlling giving the photographing angle data to the supporter.