JP2001291089A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device which can quickly set plural parameters about display of images with a simple operation. SOLUTION: The function selection display 10 shown on a monitor 9 is operated by a mouse input device 18 by selecting a desired one of functions a11-g17, and each selected function can be freely changed about its WL/WW value, for example, by operating the left and right dials 21 and 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image display device capable of quickly setting a plurality of parameters relating to image display by a simple operation.

[0002]

2. Description of the Related Art Conventionally, various medical image diagnostic apparatuses for obtaining a medical image by non-invasively imaging a lesion or the like of a subject have been developed and applied. As such a medical image diagnostic apparatus, an ultrasonic image diagnostic apparatus, a CT image diagnostic apparatus, an X-ray image diagnostic apparatus, an MRI image diagnostic apparatus, and the like are generally used. According to these various image diagnostic apparatuses (modalities), high-definition two-dimensional or three-dimensional medical images can be obtained in a short time, particularly with the recent development of image processing technology.

[0003] Based on these three-dimensional medical images, image diagnostic techniques utilizing characteristics unique to each modality have been established, and research presentations have been actively made at medical societies in various specialized fields. ing. like this,
One of the common features of image diagnostic techniques using medical images today is that interpretation of a lesion site such as a tumor has become an important position.

[0004] Compared with the past medical image diagnostic apparatuses, the three-dimensional medical image provided by the present medical image diagnostic apparatus has a high resolution and a large amount of information. In particular, the ROI (Region) as a region of interest is provided. of
Interest) In depiction of a lesion site such as a tumor, for example, spatial position identification and RO
It is remarkable in I's depiction ability.

[0005] The CT value of a medical image, for example, a CT image generally has a wide dynamic range of -1000 to +1000. CT with such a wide dynamic range
The window function is a technique for expanding a relatively narrow range of CT values to be displayed among gray values to a gray scale of a display device and displaying the same. This will be specifically described. The display capability of the display device in gray scale is normally 64 gradations. For example, this problem is solved by enlarging and displaying a narrow CT value range including the CT values of soft tissues and tumors to a gray scale of 64 gradations. The CT value range corresponding to the gray scale is referred to as a window width (hereinafter, referred to as WW), and the median value thereof is referred to as a window level (hereinafter, referred to as a window level).
Notated as WL. ).

A conventional image display device for mainly displaying an interpreted image is provided with two volume switches, one corresponding to WL and the other corresponding to WW. The user (mainly a radiologist) repeats trial and error with the two volume switches so that the diagnostic site can be identified well by the gray level difference,
The optimum WL / WW has been found. Therefore, WL /
Adjusting the WW requires a great deal of effort. There is a preset switch to reduce this trouble. The preset switch is a register in which an optimum WL / WW combination is registered in advance, and a plurality of the preset switches are provided according to the type of the part.

However, the number of preset switches is limited, and the optimum values of WL / WW differ for each image. Therefore, manual adjustment after designating the preset switches is indispensable.

[0008]

However, the conventional image display apparatus has the following problems to be solved.

Conventionally, W of slice images and MPR images
L / WW has been changed by dragging a mouse as an input device, for example. Also, for subtle numerical changes,
It was not suitable for mouse dragging, and the user had to directly input a numerical value or input using the keyboard. In any of these methods, the operation must be changed as necessary each time the user drags the mouse or inputs a numerical value.

An image processing apparatus according to the present invention solves these problems, and an object of the present invention is to provide an image display apparatus capable of quickly setting a plurality of parameters related to image display by a simple operation.

[0011]

According to a first aspect of the present invention, there is provided an image display apparatus capable of calling a recorded medical image and displaying the image. Display parameter setting means for setting various display parameters of an image to be displayed, and parameter value input means connected to the display parameter setting means and capable of inputting a parameter value for each of the display parameters on a display screen. An image display device characterized by this is a solution.

Further, according to the present invention described in claim 2,
2. The parameter value input device according to claim 1, wherein the parameter value input unit includes a rotary dial that can be freely rotated, and the parameter value can be changed and input according to a rotation direction, a speed, and a rotation angle of the rotary dial. The image display device is a solution.

[0013]

FIG. 1 is a schematic configuration diagram for explaining an image display device according to an embodiment of the present invention, and shows a case where an image display system 1 is configured for explanation. The image display system 1 includes a mouse 2, a mode selection unit 3, an image creation display unit 4, a disk 5, image data 6, a three-dimensional image creation display 7, a two-dimensional image creation display 8, a monitor 9.

The disk 5 is a storage medium for storing image data captured by a modality (not shown). As this storage medium, generally used magnetic recording,
Recording techniques based on methods such as magneto-optical recording and optical storage can be applied, such as DVD (optical disc), MO (magneto-optical disc),
Hard disk (magnetic recording) and the like. The stored image information is converted into a digital signal and stored.

The image data 6 is image information read from such a disk 5, and this image information is managed so that it can be called from a large number of image information in a short time. This management means is recorded by adding heading information for identification to each unit of image information.

The image data 6 is used for displaying image information on a three-dimensional image creation display 7 and a two-dimensional image creation display 8 according to the content of the image information due to the difference in the modality used for the photographing. Processing is performed. If the content of the image information is that of a two-dimensional image, it is input to the two-dimensional image creation display 8, and image information for displaying the two-dimensional image is created. If the content of the image information is a three-dimensional image, the content is input to the three-dimensional image creation display 7, and image information for displaying the three-dimensional image is created.

The image creation and display means 4 performs comprehensive operation control when image information processing is performed by the three-dimensional image creation display 7 and the two-dimensional image creation display 8 described above. Here, it is determined whether to perform a process for a two-dimensional image or a process for a three-dimensional image according to the content of the image data 6. In addition, a predetermined form and character information for displaying an image are included.

The mode selection means 3 displays the function selection display 10 shown in FIG. 2, and transmits image data processing information corresponding to the function selected by the mouse 2 to the image creation display means 4. Details of the operation of the function selection display 10 and the mouse 2 will be described later with reference to FIG. A desired image is displayed on the monitor 9 by the image display system 1 configured by these image processing systems.

The function selection display 10 shown in FIG. 2 is displayed, for example, on the screen of the monitor 9. A cursor display on the screen that can be moved by the mouse 2 is superimposed on an area indicating each function of the function selection display 10, and the function can be selected by, for example, a click operation. In the example of the function selection display 10 of FIG. 2, seven types of functions a11 to g17 are displayed so as to be selectable. The mouse 2 used to select this function may have the configuration shown in FIG. 3, for example.

A mouse input device 18 shown in FIG. 3 is connected to an image display device (not shown) according to the embodiment of the present invention, and a signal cable 10 for transmitting signals, and for inputting instructions for executing various functions. , A right button 19, a left button 20, a left dial 21, and a right dial 22.

An example of an operation using the mouse input device 18 will be described below. The mouse cursor displayed on the monitor 9 is moved to the functions a11 to g17 of the function selection display 10.
Put on any desired menu area. A desired function menu is selected by a click operation of the mouse input device 18.

For example, when WL / WW of the function a11 is selected, by turning the left dial 21,
Turn it up to decrease the WL, turn it down to
Becomes larger. By turning the right dial 22, the WW becomes smaller when turned upward, and the WW becomes larger when turned downward.

When the slice of function b12 is selected, turning the left dial 21 upward displays the first image, and turning the right dial 22 displays the rear image.

When Fw / Bw (cross section cursor movement) of function c13 is selected, turning the left dial 21 upward moves the cross section cursor upward, and turning it downward moves the cross section cursor downward. Moving. Turning the right dial 22 upward moves the section cursor to the left, and turning the dial downward moves the section cursor to the right.

Also, the Thickness of the function d14 is used.
When (thickness cursor movement) is selected, turning the left dial 21 upward moves the thickness cursor upward, and turning it downward moves the thickness cursor downward. Turning the right dial 22 upward moves the thickness cursor to the left, and turning the dial 22 downward moves the thickness cursor to the right.

When the function e15 Rotate (rotation of image) is selected, turning the left dial 21 upward causes the image to rotate left, and turning the dial 21 downward causes the image to rotate right.

Also, Pan (movement of image) of function f16
Is selected, turning the left dial 21 upward moves the image upward, and turning it downward moves the image downward. Turning the right dial 22 upward moves the image to the left, and turning it downward moves the image to the right.

In a state where the function g17 (Zoom (enlargement / reduction of image)) is selected, the image is reduced by turning the left dial 21 upward, and the image is enlarged by turning the dial 21 downward.

According to the present invention described above, in the state where a three-dimensional image such as an MPR image, a volume image and a surface image and a two-dimensional image such as a slice image are displayed, the mode (WL / WW change, slice Change, cross section cursor movement, thickness cursor movement, image rotation, image movement, image enlargement / reduction, etc.) and move the mouse cursor over any image to specify the mode and image. By turning the dial button, processing in the designated mode can be performed in accordance with this rotation.

The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

[0031]

According to the present invention configured as described above,
It is possible to provide an image display device that can quickly set a plurality of parameters related to image display with a simple operation.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a configuration of an image display device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing one example of a function selection display screen according to the embodiment of the present invention.

FIG. 3 is a schematic diagram illustrating a configuration of a mouse input device according to an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Image display system, 2 ... Mouse, 3 ... Mode selection means, 4 ... Image creation display means, 5 ... Disk, 6 ... Image data, 7 ... 3D image creation display, 8 ... 2D image creation display, 9 ... Monitor, 10: Function selection display, 18: Mouse input device, 21: Left dial, 22: Right dial

Continued on the front page F term (reference) 5B057 AA07 BA23 CD03 CD05 CE11 5B087 AA09 BB13 5E501 AA25 AC37 BA05 CA02 CB09 DA13 EA05 EA12 EB05 FA14 FB04 FB22 FB24 FB32 FB43

Claims (2)

[Claims] 1. An image display device capable of recalling a recorded medical image and displaying the image, a display parameter setting means for setting various display parameters of the image to be displayed, and the display parameter setting. An image display device comprising: parameter value input means connected to the means for inputting a parameter value for each of the display parameters on a display screen. 2. The apparatus according to claim 1, wherein said parameter value input means comprises a rotary dial which can be freely rotated, and said parameter value can be changed and input by a rotation direction, a speed and a rotation angle of said rotary dial. Item 2. The image display device according to Item 1.