JPS62259178A - Image display device - Google Patents

Abstract

PURPOSE:To obtain a medical image diagnosing device which displays the pass point of a straight line passing each slice in common for each picture, by designating two points set in a 3-dimensional space to set said straight line. CONSTITUTION:The 2-dimensional images of many slice planes of a subject are stored in an image memory device 1. A setting device 5 can select images by a request for display plural images on the same screen. Each selected image is reduced in a prescribed ratio and stored in a synthesizer 3 and the synthetic images are displayed on the same screen of a display device 4. The device 5 decides a straight line passing through a desired position of the subject and a passing position arithmetic device 6 calculates the pass point of each image. Then the coordinates of the pass points on the same screen are sent to a controller 7. The controller 7 displays the pass point of each image in a mark (+) with overwrite given to the displayed images. When the pass point processing is finished for all images, a display is obtained to make clear the pass position of the straight line for each image.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a medical image diagnostic apparatus, and particularly relates to an improvement in [1] that displays a plurality of two-dimensional images on the same screen.

(Conventional technology) CT (Computer Tomography)
In medical image diagnosis 5A equipment such as
Thereafter, these multiple images may be displayed and observed on the same screen. In that case, since there is no display between each image of an axis common to the slices or a passing point of a straight line set in three-dimensional space that commonly passes through each image, such an axis or straight line is how to pass through
Another problem is that it is not possible to fully grasp the mutual positional relationship between images.

The present invention has been made in view of the above-mentioned problems, and its purpose is to display multiple images of multiple slices on the same screen. An object of the present invention is to provide a medical image diagnostic apparatus that sets a straight line that commonly passes through slices and displays the passing point of the straight line on each image.

(Means for Solving the Problems) The present invention, which solves the above-mentioned problems, is capable of reducing images of a plurality of slice planes of an object in three-dimensional space, combining them and displaying them on the same screen.ii ! i9 display! A setting device that inputs information for setting a starting point and an ending point and setting a virtual straight line in the object; a passing position calculation device that calculates the passing point of this straight line in each image; The present invention is characterized by comprising a control device that overwrites and displays marks indicating passing points on each image.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a main part of a medical image diagnostic apparatus according to the present invention. In the figure, reference numeral 1 denotes an image storage device that can store a plurality of captured image data. The apparatus of the present invention may be a part of, for example, a C]- apparatus, in which case the image data provided is two-dimensional image data of each slice plane arranged three-dimensionally. Reference numeral 2 denotes an image reduction device that reduces the image provided from the image storage device 1 to an image of an arbitrary size (reduces the image to a predetermined size in order to display a plurality of images on the same display screen).

3 is an image compositing device for arranging a plurality of reduced images on the same screen. 4 is a display device that displays the created composite image. 5 is a setting device that can set two points at arbitrary positions in each of two arbitrary images, and 6 is a passage that can determine the position of a passing point in each image of a straight line connecting the two set points. It is a position calculation device. 7 is a control device that appropriately controls each of the above devices.

Note that a plurality of images f! are displayed on the display W14 under the control of the control device 7. jl (composite image), comments such as appropriate figures and characters can also be displayed.

The operation in such a configuration will be explained below with reference to FIG.

(1) When a command to display multiple images on the same screen is given, the setting device V! I5 enables image selection. As shown in FIG. 2(b), a large number of slice planes 11 of the three-dimensional object 1o are selected. 2D image #1 of each slice plane
~#n has already been stored in the l1Iifll storage device 1.

(2) The selected images are taken one by one into the image reduction device 2 and reduced to a predetermined magnification.

(3) Each time a reduced image is created, the image synthesis device 3
After all image reduction processing is completed, each image is
Combine them to arrange them on a single screen.

(4) Display the composite image on the same screen on the display device 4 (FIG. 2(c)).

(5) Using the setting device 5, determine a straight line passing through the desired position within the subject. The linear position can be determined by any two points within the subject.
This is done by specifying a point.

(6) The passing point calculation device 6 calculates the passing point in each image (in the reduced image). The coordinates of the passing point (coordinates on the same screen) are sent to the control device 7.

(7) The control device 7 overwrites the displayed image and displays the passing points of each image, for example, as a cross mark, as shown in FIG. 2(d).

(8) If the processing regarding the passing point has not been completed, execute again from (5) above.

By the above procedure, it is possible to obtain a clear display of the passing position of the straight line.

Note that the number of straight lines is not limited to one, but may be multiple. In the case of multiple lines, it is desirable that the passing point marks be different marks that can be identified in relation to each straight line.

Further, the present invention is not limited to medical image diagnostic apparatuses, but is applicable to all image data processing apparatuses having three-dimensional spatial coordinate information. Furthermore, the display device is CRT.
Not limited to display devices, color CRTs, liquid crystal displays,
A graphical display device such as a plasma display can be used.

(Effects of the Invention) As described above, the present invention has the following effects. That is, in the medical diagnostic apparatus, it is possible to easily grasp the relationship of the passing positions of straight lines with respect to each image of the composite image. In addition, it is important to accurately know the location of the affected area in the living body, and various methods have been attempted to contact the affected area as a medical procedure, such as biopsy, drug injection tube, fiberscope, etc. etc., but
In this case, by displaying the passage point to the target tissue using a straight line, the insertion tube can be guided and more accurate treatment techniques can be performed.

Particularly, according to the present invention, since the operator can set a certain passing point arbitrarily and over multiple locations, there is an advantage that an easier and more accurate treatment technique can be established.

[Brief explanation of drawings]

FIG. 1 is a layered diagram of essential parts of a medical image diagnostic apparatus according to the present invention, and FIG. 2 is an explanatory diagram for explaining the operation. 1... Image storage device @ 2... Image reduction device 3...
・Image synthesis device 4...Display device and 5...Setting device 6...Passing position calculation @ device 7...Control device Patent applicant Yokogawa Medical Systems Co., Ltd. Fig. 1

Claims (1)

[Claims] Information for setting a starting point and an end point and setting a virtual straight line in the object in an image display device that can reduce images of multiple slice planes of an object in three-dimensional space and display them on the same screen by combining them on the same screen. A setting device for inputting a line, a passing position calculation device for calculating the passing point of this straight line in each image, and a control device for overwriting and displaying a mark indicating the found passing point on each image. image display device.