JPS60241423A - Medical image pick-up apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a computer-controlled medical image capturing apparatus, and particularly to a technique that is effective when applied to a medical image capturing apparatus equipped with a mechanism for determining an image capturing procedure.

[Background technology]

Conventional digital subtraction angiography (hereinafter simply referred to as DSA) equipment uses a method to emit X-ray pulses intermittently to take images (hereinafter simply referred to as SI mode), and a method to emit X-ray pulses continuously. (hereinafter simply referred to as CI mode), and a method that facilitates diagnosis by performing subtraction at frame intervals using images taken in CI mode (hereinafter simply referred to as TID mode). Three types of shooting modes are available. To change the shooting mode after setting these shooting modes, setting buttons are provided on the console for each parameter required for each mode, and the parameters are changed and re-registered using these setting buttons.

However, such conventional photographing mode setting methods provide unique setting buttons corresponding to parameters that determine the photographing mode and photographing procedure.

Due to hardware constraints, it is not possible to increase the number of types of shooting modes and parameters, so it is not always possible to obtain the shooting mode desired by the user. Further, there is a drawback that there is a lack of flexibility in selecting the photographic element, and the repeatability is also poor.

[Purpose of the invention]

An object of the present invention is to allow a user to quickly select and register a predetermined shooting mode from among a large number of shooting modes as necessary, display a time chart of the selected shooting mode, and display the displayed time chart. It is an object of the present invention to provide a medical image photographing device capable of changing parameters for determining a photographing mode using a chart.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[Summary of the invention]

A brief overview of typical inventions disclosed in this application is as follows.

That is, a program for a shooting mode desired by the user from among a large number of shooting modes is stored in a ROM (Read On).
ly Memory) and preset the shooting mode. A plurality of photographing selection buttons corresponding one-to-one with the photographing modes are provided on the operation table, and when the photographing selection buttons are pressed, a typical time chart of the corresponding photographing mode is displayed on the display device. At the same time, the parameters previously set in this shooting mode are displayed, and only necessary changes can be made by inputting numerical values based on the time chart.

〔Example〕

Hereinafter, the configuration of the present invention will be explained together with examples.

FIG. 1 is a block diagram showing the system configuration of a medical image capturing apparatus for explaining one embodiment of the present invention.

In this embodiment, as shown in FIG. 1, the present invention is applied to a DSA device, and among the many photographing modes required of the DSA device, the Sl mode and DI mode will be explained as examples.

In FIG. 1, reference numeral 1 denotes a DSA device body equipped with a computer, an image storage device, etc., and includes an image processing section 1A for performing image processing such as subtraction, and a control section IB for controlling the system. It is configured. 2 is an X for connecting the X-ray generator and the DSA device main body 1
It is a line interface. 3 is an X-ray control device, 4 is a high voltage generator, 5 is an X-ray tube, 6 is a subject, 7 is a contrast agent injector, 8 is an image intensifier (I/■), 9
1 is a television camera, and 10 is a display position setting device for inputting information specifying a display position, etc., using, for example, a trackball. Reference numeral 11 denotes an input device for inputting general information such as numerical values, photographing mode designation information, etc., and uses, for example, a function key or a keyboard. 12
The image display device 1 uses, for example, a cathode ray tube (CRT) device.

Figures 2 and 3 are time charts of the SL mode and DI mode of the DSA imaging modes, where (a) is a synchronization signal, (b) is a contrast medium injection signal, and (c) is an X-ray exposure signal. (d) video signal read signal, (e) output monitor image, MI is a mask image, and SI is a subtraction image.

4 and 5 are diagrams showing the monitor display format when setting the photographing mode shown in the time charts in FIGS. 2 and 3, where MASK is the mask image photographing time, I
NJ is the time of contrast medium injection, LIVE is the period during the entire sequence of live image (for example, an image taken after the contrast medium is injected) imaging, and MATRIX is the number of pixels of the displayed image.

Next, the operation of this embodiment will be explained.

The Sl mode is a mode in which subtraction is performed by intermittently irradiating X-rays, and is applied to areas other than the heart. FIG. 2 shows a time chart of the Sl mode. In addition, DI mode is a mode in which subtraction is performed by continuously irradiating pulsed X-rays,
Mainly applied to the heart. FIG. 3 shows a time chart of the DI mode. As shown in Figures 2 and 3 above, the timing of imaging differs depending on the imaging mode, but if you use the X-ray exposure time chart, you can easily understand the actual timing of X-ray exposure. Displaying a chart on a monitor makes it easier to determine the shooting mode.

Next, a specific photographic mode determination procedure will be explained.

In FIGS. 2 to 5, the user first selects the shooting mode to be implemented using the input device 11 such as a specific function key or a keyboard. At that time, a typical time chart of the corresponding shooting mode is displayed on the display device 1.
Display on 2. FIG. 4 shows the monitor display format when the SL mode is selected, and FIG. 5 shows the monitor display format when the DI mode is selected. The user looks at the time chart and parameters displayed on the display device 12, and uses the position display setting device 10, such as a trackball, to set the cursor to the display position of the parameter to be changed. At this time, program the cursor to move only to the parameter display position.
To reduce the complexity of moving a cursor to a desired parameter display position. After changing the parameters, registration to the system is performed using a specific key on the input device 11 such as a function key or a keyboard. Repeat this process to change and register the parameters only at the necessary locations. Thereafter, by pressing the key for shooting control, the current time phase is displayed with high brightness on the time chart, so that the current time point in the entire shooting sequence can be grasped at all times even during shooting.

〔effect〕

As explained above, according to the novel technical means disclosed by the present application, the following effects can be obtained.

(1) The user quickly selects and registers a predetermined shooting mode as needed from among a large number of shooting modes, displays the time chart of the selected shooting mode, and displays the displayed time chart. By changing the parameters that determine the imaging mode using the , the user can change multiple imaging modes desired by the user in the same procedure and only change the necessary parts, making it easy to select the imaging mode that is clinically necessary. Can be changed quickly.

(2) Due to the above (1), it is possible to reliably change the imaging mode on the spot even for blood circulation and blood vessel conditions that vary widely among patients.

(3) By means of (1) and (2) above, the operability of the device and the test time can be shortened, especially in clinical testing sites.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the system configuration of a medical image capturing apparatus for explaining an embodiment of the present invention. FIGS. 4 and 5 are diagrams showing the monitor display format when setting the photographing mode shown in the time charts in FIGS. 2 and 3. In the figure, 1... DSA device main body, 2... X-ray interface, 3... X-ray control device, 4... High voltage generator, 5... X-ray tube, 6... Subject, 7. Contrast medium injector, 8.. Image intensifier, 9. Television camera, IO.. Position display setting device 1.11.. Human power device, 12.. Image display device. Agent Patent Attorney Shuki Akita Figure 1 Figure 2 Prisoner 3 Figure 5

Claims (1)

[Claims] (1) In a computer-controlled medical image capturing apparatus equipped with a switch for selecting an image capturing mode, a numerical input device, and an image display device, means for selecting and pre-registering a plurality of image capturing modes from among a large number of image capturing modes; A medical image characterized by comprising means for displaying a time chart on an image display device showing a photographing procedure in the selected photographing mode, and a means for changing at any time parameters for determining the photographing procedure based on the time chart. Photography equipment.