JP2004363766A - Medical image processor, medical network system, and program for medical image processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical image processor, a medical network system, and a program for the medical image processor that make it possible to obtain an image suitable for the diagnosis of an examined part of a subject when transmitting received medical image information to the other device after applying image processing to the information. <P>SOLUTION: When this medical image processor receives medical image information from the other device, performs image processing and outputs the resultant information to the other device, the image processor obtains examination information on the subject from the information attached to the received image, and changes the setting of an output density range according to the examination information on the subject to obtain the image suitable to the diagnosis of the subject. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a medical image processing device, a medical network system, and a program for a medical image processing device.
[0002]
[Prior art]
Radiation images are widely used for diagnosing diseases and the like. In order to obtain such radiation images, radiation transmitted through a subject from an imaging modality radiation irradiating unit of a CR (computed radiography) is converted into a plate-like stimulable phosphor. After the absorption, the stimulable phosphor is excited while being scanned with, for example, a laser beam, so that the radiation energy (radiation image information) accumulated by the stimulable phosphor due to the absorption is emitted as fluorescence. There is known a medical image generating apparatus configured to read a radiation image by photoelectrically converting the fluorescence to obtain a radiation image signal. The fluorescence generated from the stimulable phosphor plate by the scanning of the laser light is collected, photoelectrically converted by a photomultiplier, the electric signal is amplified, and image processing is performed based on a digital signal converted from the analog signal. Thus, a radiation image is read to generate medical image information (for example, see Patent Document 1 below).
[0003]
Conventionally, medical image information read and generated by the above-described medical image generating apparatus is sent to an image processing apparatus to perform predetermined image processing, and output to an external device such as a viewer, a server, or a printer. The printer forms a diagnostic image on the film based on the output image information and outputs the diagnostic image. In this case, the image formed on the film has a different maximum image density suitable for diagnosis depending on an inspection site or the like.
[0004]
Japanese Patent Application Laid-Open No. H11-163,197 discloses that a type of film that can be output is recognized, and a printer corresponding to a type of film (base color) that matches an output request is selected from a plurality of printers based on the recognition result. However, according to this image forming system, even if a printer is selected, it is not possible to obtain an image having a density suitable for diagnosis according to the inspection site.
[0005]
When an image is displayed on a display monitor for diagnosis, the display monitor is often used at a reduced maximum brightness in order to reduce eye fatigue and glare. Also, the required dynamic range differs depending on the subject (part). For example, for the diagnosis of the breast, a wider dynamic range is used as compared to other parts, but the brightness of the monitor is lowered, so that the capability of the hardware is sufficient. Sometimes not used up.
[0006]
[Patent Document 1]
JP-A-11-3444783
[0007]
[Patent Document 2]
JP-A-11-327847
[0008]
[Problems to be solved by the invention]
The present invention has been made in consideration of the above-described problems of the related art, and has been made capable of obtaining an image suitable for diagnosing an examination region of a subject when performing image processing on received medical image information and transmitting the processed image information to another device. It is an object to provide a program for an image processing device, a medical network system, and a medical image processing device.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a medical image processing apparatus according to the present invention is a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs the received image information to another apparatus. And a means for setting the output density range based on the subject inspection information.
[0010]
According to this medical image processing apparatus, the setting of the output density range can be automatically switched based on the acquired examination information of the subject, so that an image suitable for diagnosis of the subject can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0011]
By setting the output density range in the medical image processing apparatus based on the region information of the subject inspection, an image suitable for diagnosis can be obtained for each inspection region.
[0012]
It is preferable to change the output density range depending on whether the subject to be inspected is a breast or not. When the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained.
[0013]
Another medical image processing apparatus according to the present invention is a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs the image processing to another apparatus, and inspects a subject from the received medical image information. It is characterized by comprising a part determining means for determining a part, and means for setting an output density range in accordance with the determination result of the part determining means.
[0014]
According to this medical image processing apparatus, the setting of the output density range can be automatically switched in accordance with the examination region of the subject, so that an image suitable for subject diagnosis can be obtained for each examination region. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0015]
In this case, it is preferable that the output density range is changed depending on whether the examination site is a breast or not. When the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained.
[0016]
Yet another medical image processing apparatus according to the present invention is a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on film, Means for acquiring subject inspection information from image accompanying information of the received image; means for setting the maximum output density at the output destination based on the subject inspection information; and acquiring film information regarding the hard copy device. Means for outputting the image information to the hard copy device of the film corresponding to the maximum output density based on the film information.
[0017]
According to this medical image processing apparatus, it is possible to automatically switch the setting of the highest density based on the acquired examination information of the subject, and output the highest density setting to a film hard copy device suitable for an image having the changed setting. Thus, an image suitable for subject diagnosis can be obtained. For example, when the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0018]
Yet another medical image processing apparatus according to the present invention is a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on film, Means for obtaining inspection information of a subject from image accompanying information of the received image; means for setting a maximum output density at the output destination based on the inspection information of the subject; and a type of film corresponding to the maximum output density Means for setting the type of film output from the hard copy device, and means for setting the type of film output from the hard copy device. It is characterized by outputting information.
[0019]
According to this medical image processing apparatus, the setting of the highest density is automatically switched based on the acquired examination information of the subject, and a hard copy apparatus corresponding to a film suitable for an image in which the setting of the highest density has been changed is selected. Since the image can be output, an image suitable for diagnosing the subject can be obtained. For example, when the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0020]
In the medical image processing apparatus, the hard copy device can output to a plurality of types of films, and among the plurality of types of films, output to a film that matches the type of film corresponding to the output maximum density. Means for designating an image on an appropriate film among a plurality of types of films stored in a plurality of trays or the like in a hard copy device according to the image in which the setting of the highest density has been changed. Becomes possible.
[0021]
Further, in each of the medical image processing devices, it is preferable that the other device of the output destination includes at least one display, and the medical image processing device outputs luminance setting information of the display when outputting to the display. . Thus, an image suitable for subject diagnosis can be displayed on the display based on the subject inspection information or the test site.
[0022]
Still another medical image processing apparatus according to the present invention is a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs the processed image information to one or more display devices. And / or means for acquiring examination information of the subject from the incidental information of the medical image; means for setting a drive level range (density range) in the display device based on the examination information of the preceding subject; Means for acquiring maximum brightness information of one or more display devices, wherein the display device having the highest brightness corresponding to the set drive level (density range) is selected from the one or more display devices. It is characterized in that a judgment is made based on the information and an output display is performed on the display device.
[0023]
According to this medical image processing apparatus, a drive level range (density range) of the display device is set based on the acquired subject inspection information, and the display device having the highest luminance corresponding to the drive level (density range) is set. Since images can be automatically output and displayed, images suitable for subject diagnosis can be displayed on the display device.
[0024]
A medical network system according to the present invention receives a medical image information from another device, performs image processing, and outputs the processed image information to one or more output devices, and a hard copy device and / or the output device. A medical device in which a display device and a display device are connected to each other via a network, wherein the image processing device acquires inspection information of the subject from the received medical image and / or supplementary information of the medical image, and the inspection information Means for setting a density range according to: means for acquiring characteristics of each output device; and each output device outputs an output in the density range set by the setting means based on the characteristics of each output device. It is characterized by comprising means for determining whether or not execution is possible, and network control means for transmitting only to the executable output device.
[0025]
According to this medical network system, an image can be transmitted only to an output device that can execute output in a density range set in accordance with the examination information of the subject, and an image can be obtained by the output device. A suitable image can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0026]
A program according to the present invention is a program for a computer included in a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs the image processing to another apparatus, and includes image accompanying information of the received image. And causing the computer to execute the steps of acquiring subject inspection information from the subject and setting an output density range based on the subject inspection information.
[0027]
According to this program, the setting of the output density range can be automatically switched based on the acquired inspection information of the subject, so that an image suitable for diagnosis of the subject can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0028]
By executing the step of setting the output density range based on site information of the subject inspection in the above program, an image suitable for diagnosis can be obtained for each inspection site.
[0029]
It is preferable to execute a step of changing the output density range depending on whether the subject to be examined is a breast or not. When the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained.
[0030]
Another program according to the present invention is a program for a computer provided in a medical image processing device that receives medical image information from another device, performs image processing, and outputs the received medical image information to another device. And a step of setting an output density range according to a result of the determination by the part determining means.
[0031]
According to this program, the setting of the output density range can be automatically switched in accordance with the inspection region of the subject, so that an image suitable for subject diagnosis can be obtained for each inspection region. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0032]
In this case, it is preferable to execute a step of varying the output density range depending on whether the examination site is a breast or not. When the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained. .
[0033]
Another program according to the present invention is a program for a computer provided in a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on a film. Obtaining inspection information of a subject from image accompanying information of the received image; setting an output maximum density at the output destination based on the inspection information of the subject; and film information relating to the hard copy device. And outputting the image information to the hard copy device of the film corresponding to the maximum output density based on the film information.
[0034]
According to this program, the setting of the highest density can be automatically switched based on the acquired inspection information of the subject, and can be output to a film hard copy device suitable for an image in which the setting of the highest density has been changed. An image suitable for the diagnosis can be obtained. For example, when the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0035]
Still another program according to the present invention is a program for a computer provided in a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on a film. Acquiring the inspection information of the subject from the image accompanying information of the received image, setting the maximum output density at the output destination based on the inspection information of the subject, and corresponding to the maximum output density. Setting the type of film that has been output, the step of setting the type of film output from the hard copy device, and setting the type of film that matches the type of film corresponding to the maximum output density to the hard copy device where the film is set. Outputting the image information to the computer.
[0036]
According to this program, the highest density setting is automatically switched based on the acquired subject inspection information, and a hard copy device corresponding to a film suitable for an image having the highest density setting changed is selected and output. Therefore, an image suitable for subject diagnosis can be obtained. For example, when the examination site is a breast by mammography imaging, it is more suitable for diagnosis that the highest density is higher than the other sites, but in such a case, an image with the highest density can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0037]
In the above-mentioned program, the hard copy device can output to a plurality of types of films, and designates to output to a film corresponding to the type of the film corresponding to the maximum output density from among the plurality of types of films. Causing the computer to execute the steps so that an image is formed on an appropriate film among a plurality of types of films stored in a plurality of trays or the like in a hard copy device in accordance with the image whose maximum density setting has been changed. Becomes possible.
[0038]
Further, it is preferable that at least one display is included in the other device of the output destination, and a step of outputting luminance setting information of the display when outputting to the display is performed. Thus, an image suitable for subject diagnosis can be displayed on the display based on the subject inspection information or the test site.
[0039]
Still another program according to the present invention is a program for a computer included in a medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs the image processing to one or more display apparatuses. Obtaining inspection information of the subject from the obtained medical image and / or from the incidental information of the medical image; setting a drive level range in the display device based on the inspection information of the preceding subject; Obtaining the highest brightness information of one or more display devices; and determining a display device having the highest brightness corresponding to the set drive level from the one or more display devices based on the highest brightness information, and displaying the display device. Causing the computer to execute an output display on an apparatus.
[0040]
According to this program, the drive level range of the display device is set based on the obtained inspection information of the subject, and the image can be automatically output and displayed on the display device having the highest luminance corresponding to the drive level. An image suitable for subject diagnosis can be displayed on the device.
[0041]
Still another program according to the present invention includes a medical image processing device that receives medical image information from another device, performs image processing, and outputs the processed image information to one or more output devices, and a hard copy device and / or the output device. Or a display device and a program for a computer included in the image processing apparatus in a medical network system connected to a network, wherein examination information of a subject is obtained from a received medical image and / or collateral information of the medical image. Acquiring, a step of setting a concentration range according to the inspection information, a step of acquiring a characteristic of each output device, and each of the output devices is configured by the setting unit based on the characteristic of each output device. A step of determining whether output in a set density range is executable, and a step of transmitting only to the executable output device. Characterized in that to execute a flop, to the computer.
[0042]
According to this program, an image can be transmitted only to an output device capable of executing an output in a density range set in accordance with the test information of the subject, and an image can be obtained by the output device. Images can be obtained. Further, since the setting is automatically switched, it is possible to reduce a user's operation error.
[0043]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a medical network system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a medical network system according to an embodiment of the present invention.
[0044]
The medical network system of FIG. 1 scans a stimulable phosphor panel on which radiation image information of a subject (patient) is recorded with excitation light to emit light, and photoelectrically converts the light to obtain image information (CR). a medical image generating apparatus 1 for generating a medical image by an imaging modality of radiography, a medical image processing apparatus 2 for inputting an image file from the medical image generating apparatus 1, performing image processing and outputting image information, and a personal computer (Personal computer), a workstation, and the like, and includes an image display device (viewer) 3 for a radiologist to refer to the image and make a diagnosis.
[0045]
The medical network system shown in FIG. 1 includes a personal computer or a workstation for displaying an image, and refers to an image but does not perform a diagnosis. An image storage device (image server) 5 which comprises a workstation or the like and stores image files in an image database and can search and read images from the image display device 3 and the reference terminal 4; and the medical image generating device 1 or the medical image A plurality of printers 6 and 7 for outputting image data from the processing device 2 to a film made of a photosensitive material as a visible image. An RIS / HIS (order information management device) 8 for managing order information is connected to the medical network system of FIG.
[0046]
In the medical network system shown in FIG. 1, each of the devices 1 to 8 is connected online via a network 10, and can transmit and receive information to and from each other.
[0047]
Next, the following items A to H relating to the medical image processing apparatus 2 in FIG. 1 will be described in detail in order.
A. Device configuration
B. information
C. File
D. Input and display of main information
E. FIG. Image confirmation procedure
F. output
G. FIG. Output image formation
H. Utility functions
[0048]
A. Device configuration
FIG. 2 is a block diagram illustrating a configuration of the medical image processing apparatus 2.
[0049]
a. The medical image processing device 2 shown in FIG. 2 includes a main control device 21 for controlling the operation of the entire radiographic image capturing system, a CRT display, a liquid crystal panel, and the like, and displays digital image data obtained by the medical image generating device 1 or the like. And an image display unit 22 which can be constituted by a personal computer, and includes an information input device such as an input keyboard and a mouse.
[0050]
As shown in FIG. 2, the medical image processing apparatus 2 further includes a receiving unit 40 that receives an image file from the image generation apparatus 1 and the like, and information and image processing of the received image file and the like that is configured by a hard disk device or a RAM. A storage unit 41 for storing the subsequent image information; an image processing unit 42 for performing image processing on the image information in the image file; an output image forming unit 43 for forming an output image to be output to an external device; An image confirmation processing unit 45 for displaying a reduced image on the image display unit 22 for image confirmation of the image and the like. The main control unit 21 controls the parts 40 to 43 and 45, the display device 22, and the like.
[0051]
b. The functions of the medical image processing apparatus 2 are as follows, and each function is controlled by the main controller 21.
(1) The receiving unit 40 receives an image file from the medical image generating apparatus 1 or the like.
(2) The image file is temporarily stored in the storage unit 41.
(3) The image quality is confirmed with the reduced image created by the image confirmation processing unit 45.
(4) The image processing section 42 performs image processing.
(5) An output image is formed by the output image forming unit 43.
(6) The output image is transferred to external devices (output destinations) such as the image display device 3, the image server 5, and the printers 6 and 7 via the network 10.
[0052]
B. information
Information handled by the medical image processing apparatus 2 can be classified into the following five types.
[0053]
a. Condition information
Condition information for receiving an image file and outputting it as a processed image file to an external device such as the image server 5 and includes the following.
(A) Image processing information
This is information on gradation processing and frequency processing in the image processing unit 42.
(B) Output device information
Information related to an external device such as the image server 5 that reproduces and outputs image data. The output area, the enlargement / reduction ratio, the output format (multi-format, divided shooting format), overlay, and gradation for each output device such as the image server 5. Specify the presence or absence of processing and frequency processing.
(C) Overlay information
Information on the presence / absence / position of an overlay such as AP / PA / R / L / comment and cancellation mark (double line, x, etc.)
The position of the overlay on the image can be freely changed.
If the lead marker AP, PA, etc. is mistakenly photographed at the time of photographing, the erasure mark is overwritten on the lead marker portion on the image, and characters such as AP / PA are overlaid at an arbitrary position. Errors can be clearly corrected.
(D) Special designation
Protect information: After outputting the image, save the image file until the protection is removed.
Hold (pending) information: Hold the transfer. Specify if you want to review the image later and then transfer it.
Priority (urgent) information: Designated when priority output is required, such as in emergency shooting. Registered at the head of the queue.
[0054]
b. Patient information
Information about the patient.
(A) Patient ID information
It includes the patient ID number, name, gender, date of birth, and the like.
(B) Order information
This is information for which a doctor requests imaging.
This includes information on the patient's condition, instructions on the date and time and method of the examination request, and the like.
[0055]
c. Implementation information
This is information on the result of reception and image processing.
(A) Reception result The shooting date and time are included.
(B) Image processing result
This is a calculation result of an image processing parameter, and performs image processing of image data based on the result at the time of output.
(C) System information
A part of the system information such as the system configuration at the time of shooting is included.
[0056]
d. System information
(A) Information for managing and controlling the system of FIG.
(B) Configuration of the system in FIG. 1 (connected external device such as image server 5 and the like).
(C) Parameters and tables for controlling the equipment constituting the system of FIG.
(D) Setting information related to the medical image generation device 1 as an input device
(E) Setting information on the output device, such as information on the printer 6 and HOST information.
[0057]
e. image data
(A) Image data received from the medical image generation device 1.
(B) Reduced image data for display created from image data for image confirmation
(C) Image processing reduced image data for image processing of the display reduced image in the image confirmation processing unit 45.
(D) Output image data that has been subjected to gradation processing, frequency processing, and the like.
[0058]
C. File
Files handled by the medical image processing apparatus 2 are stored in the storage unit 41 and can be classified into the following seven types.
[0059]
a. Condition file
The condition key is a key in which image processing conditions and output conditions for an image file are set in advance. There is a condition file corresponding to each condition key. The condition file includes the above condition information. Imaging site (lung field, abdomen, head, etc.), imaging position (standing, recumbent, etc.), imaging direction (front, side, etc.), patient characteristics (gender, age, physique, etc.), disease name, technician used And the like, and corresponding names and shooting information are set in advance. Then, main controller 21 sets a condition file group for each of the plurality of classifications, sets a plurality of condition files for each of the set condition file groups, and stores the same in storage unit 41. Select one of the most suitable conditions when receiving an image.
[0060]
b. Image header file
After receiving, an image header file is created. The image header includes a reservation file (that is, imaging information and patient information) for the imaging, and imaging execution information. When the user refers to or changes the imaging information, patient information, and imaging execution information, the user refers to the image header file.
[0061]
c. Reduced image file
This is image data obtained by reducing image data to a fraction.
(A) Reduced image data for display
The data displayed on the image display unit 22 in FIG. 2 uses the reduced image for display.
(B) Reduced image data for image processing
This is reduced image data for calculating parameters for performing image processing. The reduction ratio is determined so that one pixel after reduction has the same length designated in advance. Thereby, the difference in the read pixel size can be corrected with the reduced image. The calculation of the image processing parameters is performed on the reduced image for image processing, and the image data is not used.
[0062]
d. Image file
(A) The image file is composed of image accompanying information (image header) and image data.
(B) The image header is composed of condition information, patient information, and implementation information.
The user refers to the condition information, the patient information, and the implementation information, and refers to the image header when making changes.
[0063]
e. Output image file
This is a file of output image data that has been subjected to specified processing among frequency processing, gradation processing, overlay, rotation, and scaling.
[0064]
f. System files
This is a file of the above system information.
[0065]
D. Input and display of main information
[0066]
a. Display received image information
Displays the received image as a thumbnail.
[0067]
b. Output information display
(1) Designate the output size, orientation, trimming position, output position, enlargement / reduction method, etc. Register in the condition file in advance.
(2) When a condition key is selected, an output area and an output image area are determined based on conditions specified in advance, and are displayed on the screen of the image display unit 22. The size of the output area display area on the screen of the image display unit 22 is defined as the maximum output area for output. The output area and the output image area are graphically displayed in the output area display area. This makes it possible to select and confirm an appropriate output area and output image area for each device.
[0068]
c. Overlay information
{Circle around (1)} Specify whether to overlay “AP”, “PA”, “R”, “L”, comment, scale, etc., and specify where to overlay. Register in the condition file in advance.
(2) The output image is displayed in the output area display area of the screen of the image display unit 22, and the overlay information is graphically displayed there.
(3) An appropriate overlay can be selected and its position can be specified.
{Circle around (4)} It can be confirmed that there is no hidden portion hidden by the overlay. If the overlay causes inconvenience in diagnosis, it can be moved.
[0069]
d. Online information input / output from RIS
(1) Enter an order from a doctor. Convert the entered order to the format of this system and save it in the reservation file. The imaging part and the imaging method are converted by the corresponding imaging condition key.
(2) Convert the image header file to the RIS side format and output.
[0070]
e. Image list
Image files can be displayed as a list.
[0071]
E. FIG. Image confirmation procedure
a. System operation when checking images
(1) An image file is received from the medical image generation device 1 and stored in the storage unit 41.
(2) The image file stored in the storage medium of the storage unit 41 is reduced by the image confirmation processing unit 45 at a reduction ratio specified in advance.
(3) The reduced images are sequentially displayed on the screen of the image display unit 22.
(4) After the reception and display are completed, the digital image information is subjected to image processing by a method specified in advance by the shooting condition key, and is displayed again on the image display unit 22. The reduced image is used for determining the parameters of the image processing.
(5) The image which is sequentially displayed on the image display unit 22 and after the display is completed, is subjected to the gradation processing, and is displayed again.
(6) When the operator views the received image displayed on the image display unit 22 and determines that the received image is a normal image, the operator inputs a key for confirming the end of the reception from the character information input device, and the image confirmation ends.
(7) When it is desired to change the patient information, the image processing method, the output method, and the like, new information can be input from the character information input device.
(8) When the image confirmation key is pressed, the image confirmation of the image is completed and the next image is automatically displayed.
(9) If there is a problem with the image, the image processing can be changed. As a suspension, detailed image processing changes can be made later.
(10) When the image confirmation key is input, the image confirmation ends, and the following processing is performed.
(1) The image file is stored in the storage unit 41 as a confirmed image file.
{Circle around (2)} The image for which image confirmation has been completed is registered in a queue for output to an external device.
(3) The next received image file is displayed, and the image can be confirmed.
(11) When the hold key is input, the image confirmation ends.
[0072]
F. output
(1) Output is performed asynchronously with reception and image confirmation.
(2) Queues are created and managed for each external device, and the queues operate independently of each other and do not affect each other. Therefore, the output is performed asynchronously for each device.
{Circle around (3)} The queue of the external device in which the image is registered is stored as a queue registration table in the storage unit 41, and is updated and managed for each registration and deletion in the queue.
{Circle around (4)} The images registered in the queue are output to the external device in the order of registration, and the images whose output has been completed are deleted from the queue.
(5) When executing the output, the image file stored in the storage unit 41 is specified from the number registered in the queue.
(6) An output image is formed under the conditions stored in the image file. The image header is converted into a format determined for each output device and transferred together with the image data.
[0073]
G. FIG. Output image formation
[0074]
a. The output image is formed by the output image forming unit 43 mainly by the following processing.
(1) Image data is read from the storage unit 41 to the image memory.
(2) Perform frequency processing.
(3) Equalization processing
(4) Perform gradation processing
(5) Rotate the image
(6) Perform mirror inversion
▲ 7 ▼ Perform scaling
(8) Perform overlay
[0075]
b. In (2) to (8), whether or not to execute can be designated for each output device by condition information.
[0076]
c. It is possible to specify that the image data that has been subjected to the processes specified in (2) to (8) be saved as a processed image data file. Eliminates reprocessing of the common processing portion of the output image to each output device.
[0077]
d. For example, if the scale of the output image to each output device is different, save the processed image up to (6), read the processed image up to (6) when transferring it to another device, By performing processing and transferring only in (7) and (8), the time in (2) to (6) can be reduced.
[0078]
e. Execute (5) and (6) simultaneously with any of (2), (3) and (4). Memory access is reduced, and processing time can be reduced.
[0079]
H. Utility functions
[0080]
a. It has several functions as a utility for the user.
Utility functions are restricted by password for each general user, manager, and manufacturer. In particular, changing information about an image requires a manager password for security.
[0081]
b. Image file operation
(1) An image file list is displayed, and information on stored images is displayed on the image display unit 22 in the order of reception.
{Circle around (2)} When a desired image is selected from the list, patient information, condition information, and an image are displayed in the same form as the image confirmation screen.
(3) Patient information, image processing method, output method, etc. can be changed.
{Circle over (4)} The image for which “hold” was designated at the time of shooting is released again by reconfirming the image here.
(5) The output order can be changed whether or not to output to each external device.
[0082]
c. Shooting record, irradiation record
(1) Statistical processing of photographing information and patient information is performed and provided to the user as photographing records and irradiation records.
{Circle over (2)} The number of radiographs for each radiographed part in the designated period, a list of radiographing conditions per day, etc. can be output.
[0083]
d. Customization
Screens and operability can be customized for each user.
[0084]
Next, a first operation of the medical image processing apparatus 2 shown in FIGS. 1 and 2 in which the maximum density setting (density range) of an output film is changed according to subject inspection information (inspection site information) is shown in the flowchart of FIG. This will be described with reference to FIG.
[0085]
The medical image processing apparatus 2 of FIGS. 1 and 2 receives image information and image accompanying information including patient / examination information of the image from the image generation apparatus 1 (S01), and performs predetermined image processing on the image information as described above. On the other hand, examination part information (for example, part information at the time of imaging) in the examination information of the patient is acquired from the supplementary information (S02).
[0086]
Next, it is determined whether or not the examination region is a breast (mammography) (S03). If the examination region is a breast, the setting of the maximum output density is changed to a density of 3.6 (S04). If the inspection site is other than the breast, for example, the head, the setting of the maximum output density is changed to 3.0 (S05). Next, the image information after the image processing is output to the printers 6 and 7 in FIG. 1 (S06). Then, when performing the next print (S07), the process returns to step S01.
[0087]
To change the setting of the above-mentioned maximum output density, the main controller 21 rewrites the density range so that the maximum output density changes, and the look-up table (LUT) for conversion between the pixel value and the density is changed. It can be executed by putting it into the supplementary information and outputting it to the printer together with the image information. For example, in the case of a laser imager in which a printer forms a latent image on a film with a laser beam and then develops it into a visible image, the maximum density can be changed by increasing or decreasing the amount of the laser beam when exposing the film.
[0088]
As described above, for example, for an image of a mammogram by mammography where a film density higher than usual is suitable for diagnosis, the highest film output density (3.6) higher than the other parts based on the subject's examination information and examination part information. The setting can be automatically changed, and when the examination site is a breast, the setting of the film output maximum density can be changed to the density of 3.6 and output. When the inspection site is the head or the like, the setting of the maximum film output density can be changed to the density of 3.0 and output. As described above, the setting of the film maximum density can be automatically switched, so that a user's operation error can be reduced.
[0089]
Next, a second operation in which the medical image processing apparatus 2 of FIGS. 1 and 2 specifies and outputs a printer in accordance with an image in which the setting of the maximum density (density range) has been changed will be described with reference to the flowchart of FIG. explain.
[0090]
While the medical image processing apparatus 2 of FIGS. 1 and 2 receives image information and image accompanying information including patient / examination information of the image from the image generation apparatus 1 (S11), and performs predetermined image processing on the image information, Examination site information (for example, site information at the time of imaging) in the patient's examination information is acquired from the supplementary information (S12).
[0091]
Next, a film output maximum density suitable for the image is set based on the inspection site information (S13). This setting can be performed, for example, by determining whether or not the examination site is a breast, as in FIG.
[0092]
On the other hand, a film type corresponding to the maximum output density is set (S14), and a film type in the printers 6 and 7 in FIG. 1 is set (S15). For example, a film A corresponding to the maximum density 3.6 suitable for a case where the examination site is a breast is set, and that the film A is set in the printer 6 is set in the storage unit 41 in FIG. Remember it. Further, a film B corresponding to the maximum density 3.0 is set, and that the film B is loaded in the printer 7 is set and stored in the storage unit 41 of FIG.
[0093]
Then, a film A or B corresponding to the set maximum film output density is designated (S16), and image information is output to the printer 6 or 7 where the designated film is set (S17). When the next print is to be performed (S18), the process returns to step S11.
[0094]
As described above, it is possible to change the setting of the maximum film density based on the acquired subject inspection information / inspection site information, and output an image to the designated film in accordance with the maximum film density. That is, since the image can be output to the printer 6 or 7 loaded with the film A or B suitable for the image in which the setting of the film maximum density has been changed, an image suitable for subject diagnosis can be obtained. For example, an image in which the examination site is a breast can be output to the film A of the printer 6 corresponding to the maximum density of 3.6 by mammography. Further, an image in which the inspection site is the head or the like can be output to the film B of the printer 7 corresponding to the maximum density of 3.0. As described above, the setting of the film maximum density can be automatically switched, so that a user's operation error can be reduced.
[0095]
In step S17, for example, when one printer 6 has two film trays for loading films A and B, a film loaded with film A or B suitable for an image in which the setting of the maximum film density has been changed. By selecting and outputting a tray, an image suitable for subject diagnosis can be obtained in the same manner.
[0096]
As described above, by associating the film type (A, B) of the printer with the film output maximum density set in the medical image processing apparatus, the printer or the film specified in accordance with the image whose setting of the film maximum density has been changed. A tray can be automatically selected and an image can be output to a film corresponding to the highest density of the film.
[0097]
In FIG. 4, the film type information of the printers 6 and 7 is set in the medical image processing apparatus in advance. However, the film type information may be obtained from each of the printers 6 and 7 through communication. Also, when there are settings other than the maximum density (development temperature, development speed, output format, etc.) depending on the inspection site, each output device and the medical image processing apparatus can handle the same as the maximum density setting. .
[0098]
Next, the configuration in which the setting of the maximum luminance of the display (monitor) of the image display device 3 in FIG. 1 is changed in the medical image processing device 2 in FIGS. Will be explained.
[0099]
FIG. 5 is a view schematically showing the setting of the maximum luminance of the monitor for the inspection part of the image in the medical image processing apparatus 2 of FIGS. FIG. 6 is a flowchart for explaining the operation of changing the maximum brightness setting of the monitor based on the information of the subject in the medical image processing apparatus 2 of FIGS.
[0100]
The medical image processing apparatus 2 shown in FIGS. 1 and 2 sets the maximum brightness setting of a monitor when displaying a diagnostic image on the image display device 3 based on information of a subject (for example, site information at the time of imaging, a specific condition key, etc.). Can be changed.
[0101]
As described above, when an image is output to a film by an output device such as an imager, the maximum density can be changed by increasing or decreasing the amount of laser light on the imager side. To fix it, the brightness is changed, the lowest density side (highest brightness) is changed, and the whole dynamic range is expanded.
[0102]
For example, as shown in FIG. 5, when the inspection part of the subject information b of the image 1A is a breast, the maximum luminance setting of the monitor is the maximum luminance of 700 cd / m.²Change to Further, when the inspection part of the subject information b of the image 2B is the chest, the maximum luminance setting is the maximum luminance of 420 cd / m.²Change to
[0103]
The method of determining the actual maximum luminance setting value corresponds to setting the maximum density of a breast image of 3.6 for a film and the maximum density of an image of another part of 3.0. The minimum perceptible difference in luminance, Just-Noticeable Difference, can be realized by changing the maximum luminance on the monitor.
[0104]
(1) Minimum density 0.2, Shakasten luminance 3000 cd / m², Reflected luminance (external light such as reflected light of a fluorescent lamp) 0 cd / m²And when
JND range when the density is 3.6: 876
JND range when density is 3.0: 781
[0105]
(2) Monitor brightness is 700 cd / m maximum brightness², Minimum luminance 0.7 cd / m², The highest luminance corresponding to the density of 3.6 (700 cd / m²) JND range: 698
[0106]
(3) When the JND range is set to the same ratio as “the density of the breast image is 3.6 and the density of the image of the other site is 3.0”, the JND range at the other site is 680.
When this is converted into luminance, the luminance at other parts: 420 cd / m²
[0107]
Therefore, in the case of a breast image, the maximum brightness is 700 cd / m²And 420 cd / m for images of other parts²Set to.
[0108]
However, 420 cd / m for other parts²In the above case, the user may determine the setting directly in consideration of the glare and the like, for example, 600 cd / m²Can be set.
[0109]
Next, an operation of displaying an image by changing the maximum brightness setting of the monitor according to the subject inspection information (inspection site information) in the medical image processing apparatus 2 of FIGS. 1 and 2 will be described. 1, the medical image processing apparatus 2 of FIG. 2 receives image information and image accompanying information including patient / examination information of the image from the image generation apparatus 1 (S21), and performs predetermined image processing on the image information as described above. On the other hand, examination part information (for example, part information at the time of imaging) of the patient examination information is acquired from the supplementary information (S22).
[0110]
Next, it is determined whether or not the examination site is a breast (mammography) (S23). If the examination site is a breast, the maximum luminance of the monitor of the image display device 3 in FIG. 1 is set to 700 cd / m.²(S24). If the examination site is other than the breast, for example, the chest, the maximum luminance of the monitor is set to 420 cd / m2.²(S25).
[0111]
Next, the image information after the image processing is output to the image display device 3 of FIG. 1 (S26). If there is a next image (S27), the process returns to step S21.
[0112]
In the method of setting the maximum brightness in step S24 or S25, information on the maximum brightness is added to the supplementary information and transmitted to the image display device 3 in FIG. 1 as an image file. That is, a command for setting the maximum luminance and a look-up table (LUT) for conversion between the pixel value and the luminance are transmitted together with the image information.
[0113]
As described above, according to FIGS. 5 and 6, by setting the maximum luminance of the display device at the output destination based on the inspection region of the subject, a more optimal image display for diagnosis according to the inspection region can be obtained. It can be performed on a display device. For example, when displaying an image in which the examination site is a breast by mammography imaging on a display monitor, by setting the maximum brightness to be high and expanding the dynamic range, an image suitable for the breast can be displayed and observed. The diagnostic image can be observed while reducing the user's feeling of fatigue and keeping the feeling of use optimal. Further, since the setting of the highest luminance can be automatically switched by acquiring the information of the subject, both the user operation and the operation error can be reduced.
[0114]
Conventionally, when performing image diagnosis, the display monitor is often used with the maximum brightness lowered to reduce eye fatigue and glare, and the required dynamic range differs depending on the part of the subject. Uses a wider dynamic range than other parts, but in some cases, the hardware of the monitor is not fully used due to the reduced brightness of the monitor. In this case, the maximum brightness is set to be higher and the extended dynamic range is used, so that the capability of the hardware can be sufficiently exhibited and the breast image can be easily observed at the time of image diagnosis.
[0115]
Although FIG. 6 illustrates an example in which the doctor changes the maximum brightness setting of the monitor of the image display device 3 for observing the diagnostic image, the same change of the maximum brightness setting is performed by the medical image processing apparatus of FIG. 2 can be executed also on the monitor attached to the image display unit 22 (FIG. 2), the reference terminal 4, or the image storage device 5. These display monitors (displays) may be liquid crystal displays, CRTs, or the like.
[0116]
Each operation of the medical image processing apparatus 2 according to the present embodiment described above is controlled by the main control device 21 in FIG. 2 according to a program stored in a storage device such as the storage unit 41, and necessary information processing is executed.
[0117]
As described above, the present invention has been described with the embodiments, but the present invention is not limited to these, and various modifications can be made within the technical idea of the present invention. For example, as a medical image generating device, in addition to a CR device configured to read a radiation image from a stimulable phosphor panel on which radiation image information of a patient is recorded, a radiation image capturing device using an X-ray flat panel detector, Medical image generation devices such as CT (Computed Tomography), MRI (Magnetic Resonance Imaging), DR (Digital Radiography), and US (Ultrasound: Ultrasound Diagnostic Device). Needless to say, each of these medical image generating apparatuses may be connected to the medical network system according to the present invention.
[0118]
【The invention's effect】
According to the medical image processing apparatus, the medical network system, and the program for the medical image processing apparatus of the present invention, when the received medical image information is subjected to image processing and transmitted to another apparatus, the output density is determined based on the examination information. By changing the setting of the range or the setting of the maximum luminance at the time of display, an image suitable for diagnosing the inspection region of the subject can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a medical network system according to the present embodiment.
FIG. 2 is a block diagram illustrating a configuration of the medical image processing apparatus 2 of FIG.
FIG. 3 is a flowchart illustrating a first operation of the medical image processing apparatus of FIGS. 1 and 2;
FIG. 4 is a flowchart for explaining a second operation of the medical image processing apparatus in FIGS. 1 and 2;
5 is a diagram schematically showing the setting of the maximum luminance of a monitor for an inspection part of an image in the medical image processing apparatus 2 of FIGS. 1 and 2. FIG.
FIG. 6 is a flowchart for explaining an operation of changing the maximum brightness setting of the monitor based on information on a subject in the medical image processing apparatus 2 in FIGS. 1 and 2;
[Explanation of symbols]
1. Medical image generation device
2. Medical image processing device
3. Image display device
6,7 ... Printer (hard copy device)
10 Network
21 Main controller
22 ・ ・ ・ Image display unit
A: Film compatible with a maximum density of 3.6
B: Film corresponding to the maximum density of 3.0

Claims (22)

A medical image processing device that receives medical image information from another device, performs image processing, and outputs the image to another device,
Means for obtaining subject inspection information from image accompanying information of the received image;
Means for setting an output density range based on the examination information of the subject. The medical image processing apparatus according to claim 1, wherein the output density range is set based on site information of the subject inspection. 3. The medical image processing apparatus according to claim 1, wherein the output density range is changed depending on whether the subject to be examined is a breast or not. A medical image processing device that receives medical image information from another device, performs image processing, and outputs the image to another device,
Part determination means for determining an inspection part of the subject from the received medical image information;
Means for setting an output density range in accordance with a result of the determination by the part determining means. The medical image processing apparatus according to claim 4, wherein the output density range is changed depending on whether the examination site is a breast or not. A medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on a film,
Means for obtaining subject inspection information from image accompanying information of the received image;
Means for setting the maximum output density at the output destination based on the test information of the subject;
Means for acquiring film information about the hard copy device,
A medical image processing apparatus for outputting the image information to the hard copy device of the film corresponding to the maximum output density based on the film information. A medical image processing apparatus that receives medical image information from another apparatus, performs image processing, and outputs at least to a hard copy apparatus that forms an image on a film,
Means for obtaining subject inspection information from image accompanying information of the received image;
Means for setting the maximum output density at the output destination based on the test information of the subject;
Means for setting the type of film corresponding to the output maximum density,
Means for setting the type of film output from the hard copy device,
A medical image processing apparatus for outputting the image information to a hard copy device in which a film corresponding to a film type corresponding to the maximum output density is set. The hard copy device can output to a plurality of types of film,
8. The medical image processing apparatus according to claim 7, further comprising means for designating output of a film corresponding to the type of film corresponding to the maximum output density from among the plurality of types of films. 9. The device according to claim 1, wherein the other device of the output destination includes at least one display, and the medical image processing device outputs luminance setting information of the display when outputting to the display. 2. The medical image processing apparatus according to claim 1. A medical image processing device that receives medical image information from another device, performs image processing, and outputs the processed image information to one or more display devices,
Means for acquiring subject inspection information from the received medical image and / or from collateral information of the medical image;
Means for setting a drive level range in the display device based on the inspection information of the preceding subject,
Means for acquiring maximum brightness information of the one or more display devices,
A medical image, wherein a display device having the highest brightness corresponding to the set drive level is determined from the one or more display devices based on the highest brightness information, and output display is performed on the display device. Processing equipment. A medical image processing device that receives medical image information from another device, performs image processing, and outputs it to one or more output devices, and a hard copy device and / or a display device as the output device are connected to a network. Medical network system,
The image processing device,
Means for acquiring subject inspection information from the received medical image and / or from collateral information of the medical image;
Means for setting a concentration range according to the inspection information,
Means for acquiring the characteristics of each output device,
Means for judging whether or not each of the output devices can execute output in the density range set by the setting means based on characteristics of each of the output devices;
A network control unit for transmitting data only to the executable output device. A program for a computer included in a medical image processing device that receives medical image information from another device, performs image processing, and outputs the received image to another device,
Obtaining inspection information of the subject from image accompanying information of the received image;
Setting the output density range based on the test information of the subject by the computer. 13. The program according to claim 12, further comprising the step of setting the output density range based on site information of the subject inspection. 13. The program according to claim 11, wherein the step of changing the output density range is performed depending on whether the subject to be examined is a breast or not. A program for a computer included in a medical image processing device that receives medical image information from another device, performs image processing, and outputs the received image to another device,
Judging the examination site of the subject from the received medical image information;
Setting the output density range in accordance with the result of the determination by the region determining means. 16. The program according to claim 15, further comprising the step of changing the output density range depending on whether the examination site is a breast or not. A program for a computer provided with a medical image processing device that receives medical image information from another device, performs image processing, and outputs at least to a hard copy device that forms an image on a film,
Obtaining inspection information of the subject from image accompanying information of the received image;
Setting an output maximum density at the output destination based on the test information of the subject;
Obtaining film information about the hardcopy device;
Outputting the image information to the hard copy device for the film corresponding to the maximum output density based on the film information. A program for a computer provided with a medical image processing device that receives medical image information from another device, performs image processing, and outputs at least to a hard copy device that forms an image on a film,
Obtaining inspection information of the subject from image accompanying information of the received image;
Setting an output maximum density at the output destination based on the test information of the subject;
Setting a film type corresponding to the output maximum density;
Setting the type of film output from the hard copy device, and outputting the image information to a hard copy device set with a film that matches the film type corresponding to the maximum output density. A program that is executed by the computer. The hard copy device is capable of outputting to a plurality of types of films, and executing a step of designating output to a film corresponding to the type of film corresponding to the maximum output density from among the plurality of types of films. The program according to claim 18, wherein the program is executed. 20. The device according to claim 12, wherein at least one display is included in the other device of the output destination, and a step of outputting luminance setting information of the display is performed at the time of output to the display. The program described in. A program for a computer included in a medical image processing device that receives medical image information from another device, performs image processing, and outputs the image processing to one or more display devices,
Obtaining examination information of the subject from the received medical image and / or from collateral information of the medical image;
Setting a drive level range in the display device based on the inspection information of the preceding subject;
Obtaining maximum brightness information of the one or more display devices;
Determining, from the one or more display devices, a display device having the highest brightness corresponding to the set drive level based on the highest brightness information, and performing output display on the display device. A program characterized by the following. A medical image processing device that receives medical image information from another device, performs image processing, and outputs it to one or more output devices, and a hard copy device and / or a display device as the output device are connected to a network. A program for a computer provided in the image processing apparatus in a medical network system,
Obtaining examination information of the subject from the received medical image and / or from collateral information of the medical image;
Setting a density range according to the inspection information;
Obtaining the characteristics of each output device;
Judging whether or not each of the output devices can execute output in the density range set by the setting unit based on the characteristics of each of the output devices;
Transmitting the data to the executable output device only.

Images