JP6766829B2 - Radiation imaging system, medical image output system and output device - Google Patents

Description

The present invention relates to a radiographic imaging system, a medical image output system and an output device.

Radiation such as X-rays is emitted from the radiation generator, and the radiation transmitted through the subject is read out as a signal value by the radiation imaging device (Flat Panel Detector) and transferred to the console, etc., to the signal value transferred by the console, etc. Development of a radiographic imaging system that generates a radiological image based on this is in progress. Then, the generated radiation image is usually output to a display system such as PACS (Picture Archiving and Communication System), and the radiation image displayed on the display screen of the display system by an image interpreter or a diagnostician. Look at and perform image interpretation and diagnosis.

Then, for example, in Patent Document 1, when a plurality of radiographic images are output from an image processing device to a display system, a plurality of images taken by different modalities (imaging devices) such as CT (Computed Tomography) and MRI (Magnetic Resonance Imaging). Describes the invention of an image processing apparatus or the like that modifies the display order of radiation images and outputs them to a display system. Further, for example, Patent Document 2 describes an invention of an image processing apparatus or the like capable of outputting a plurality of captured radiographic images by arbitrarily changing the order regardless of the shooting order.

On the other hand, in recent years, the signal value read out by the radiographic image capturing apparatus is image-processed under the first condition and generated, for example, the default processed image for use in normal diagnosis, and the same signal value. A second processed image that has been image-processed under a second condition different from the first condition for obtaining a default processed image or the like is generated (in this case, the second processed image is generated. The default processed image or the like is the first processed image.), The cases where the first processed image or the second processed image is used for diagnosis or the like are increasing. Further, the signal value read by the radiographic image capturing apparatus is image-processed under the first condition to generate a first processed image, and the generated first processed image is further subjected to the second condition. Image processing may be performed to generate a second processed image.

For example, in the operating room, after surgery, in order to check whether gauze or catheter remains in the patient's body, or whether the catheter is not entangled and is attached to the patient in an appropriate position and condition. In some cases, a patient is radiographed and image processing is performed on the signal value read by the radiographing apparatus to emphasize gauze or the like, that is, a so-called catheter / gauze emphasized image is generated (note that the catheter / gauze). For the emphasized image, refer to, for example, Non-Patent Document 1 and the like.)

In this case, for example, if the image processing condition for obtaining a normal default processed image or the like (first processed image) obtained by photographing the imaged portion of the patient is the first condition, the above-mentioned catheter / gauze-enhanced image Is a second processed image that has been image-processed under a second condition different from the first condition for obtaining a default processed image or the like as described above for the same signal value read by the radiographic image capturing apparatus. It turns out that.

Further, for example, when photographing a relatively wide area such as the entire spinal column or the entire lower limbs of the patient (so-called long imaging), for example, as shown in FIG. 7A, a plurality of imaging sites (in this case, the right leg) of the patient are photographed. In some cases, the radiographic image p is separately photographed and combined with each other to generate a long combined image pron as shown in FIG. 7B.

In this case, for example, if each radiation image p (see FIG. 7A) is used as the first processed image, the long combined image pron (see FIG. 7B) is the first processed image for obtaining the first processed image. This is a second processed image that has been image-processed under a second condition different from the condition.

Further, the relationship between the first processed image and the second processed image is not limited to these, and the illustration is omitted, but for example, image processing is performed so as to remove bone components such as ribs from the radiographic image of the front of the chest. When the rib removal image is generated, for example, if the default processed image of the front of the chest is used as the first processed image, the rib removal image is the first condition for obtaining the first processed image. This is a second processed image that has been image-processed under a second condition different from that of.

Further, for example, if the default processed image or the like in which the breast taken by the mammography apparatus is used as the first processed image, for example, a mass or a calcified part from the default processed image or the like. The so-called mammography auxiliary image, in which a mark or a border is added to indicate the part, is image-processed under a second condition different from the first condition for obtaining the first processed image. This is the second processed image.

Note that the "first" and "second" in the second processed image are merely for convenience. For example, in the above example, if the catheter / gauze emphasized image is used as the first processed image, For example, the default processed image or the like was image-processed under a second condition different from the first condition for obtaining such a catheter / gauze-enhanced image for the same signal value read by the radioimaging apparatus. This is the second processed image. Therefore, when there are a plurality of processing methods (that is, the above conditions) that can generate a second processed image by performing image processing on the same signal value read by the radiation imaging apparatus, whichever is used. Which of the first processed images is used as the second processed image is appropriately different for each facility such as a hospital, for each usage situation such as intraoperative or image interpretation, or for each user.

Japanese Unexamined Patent Publication No. 2010-99157 Japanese Unexamined Patent Publication No. 2000-166908

Miwa Baba, 3 outsiders, "Examination of image processing using" catheter / gauze enhancement function "", [online], 2014, Saitama Radiological Engineers Association, Journal "Saitama Radiation" No. 237 (2014) , No. 3), p. 266 (32) [Searched on February 17, 2016], Internet <URL: http://www.sart.jp/DB/2014/taikai/39.pdf>

By the way, as described above, for example, when a catheter / gauze-enhanced image is displayed on a display device installed in an operating room or the like after surgery, for example, a default processed image is displayed on a console based on a signal value read by a radiographic imaging device. Etc. (for example, the first processed image) are generated and displayed on the screen. Then, when an operator such as a radiologist performs an operation to generate a catheter / gauze-weighted image, the console generates a catheter / gauze-weighted image (for example, a second processed image) and displays it on the screen.

At that time, the display device in the operating room can be configured to display the catheter / gauze-enhanced image after displaying the default processed image or the like in addition to the display on the console. It is also possible to configure the catheter / gauze-enhanced image to be displayed from the beginning without displaying the default processed image or the like. However, in any case, in this case, the default processed image or the like may or may not be displayed on the display device in the operating room, and the catheter / gauze-weighted image is preferentially displayed on the display device in the operating room. The main focus is placed.

However, when the default processed image or the catheter / gauze-enhanced image processed in this way is then output to a display system such as PACS, when the image interpreter or the diagnostician sees on the display system, the above-mentioned operating room Similar to the display device, the catheter / gauze-enhanced image may be displayed before the default processed image or the like on the display system.

However, in the case of the above example, for example, when the image interpreting doctor performs the image interpretation on the display system, the image interpretation is performed by using the default processed image or the like. Further, for example, the default processed image or the like taken before the previous time and the default processed image or the like taken this time may be displayed side by side, and they may be compared and interpreted. In such a case, if the catheter / gauze-weighted image is displayed first on the display system, the radiologist must perform the process of switching the display one by one to display the default processed image, which is very troublesome. It will be a difficult task.

In addition, when the diagnostician displays an image on the display system, for example, if the catheter / gauze-enhanced image is displayed first, the patient who is viewing the display together with the diagnostician may see the default processed image or the like. Because they are different, you may think that there was something wrong. In addition, a nurse, etc., who was requested by a doctor or the like to display an image on the display system for diagnosis or interpretation, first displays a catheter / gauze-enhanced image on the screen or a catheter / gauze-enhanced image. When the thumbnail image of is displayed, you may think "Is it an image that failed to shoot?"

In this way, if the catheter / gauze-weighted image is displayed on the display system before the default processed image or the like, the patient, the nurse, or the like may be unnecessarily concerned. Therefore, in such a case, the default processed image or the like (first processed image) may be displayed before the catheter / gauze weighted image (second processed image) on the display system. desirable.

However, on the other hand, for example, in the case of the above-mentioned long imaging, both in the case of performing image interpretation and diagnosis on the display system, it is shown in FIG. 7B instead of the pre-coupling radiation image p shown in FIG. 7A. It does not matter if the long combined image long that combines them is displayed first, rather than displaying the three radiation images p (for example, the first processed image) separately. It may be more convenient for the image interpreter, the diagnostician, the patient, etc. to display the scale-combined image long (for example, the second processed image).

The inventions described in Patent Documents 1 and 2 described above are inventions relating to the display order of the first processed images, etc., and the first condition is applied to the same signal value read by the radiation imaging apparatus. The display order of the first processed image image-processed in 1 and the second processed image image-processed under the second condition different from the first condition is not considered.

The present invention has been made in view of the above points, and is a radiation image capable of accurately displaying either the first processed image or the second processed image according to the priority in the display system. The purpose is to provide a photography system.

Also, the above problem is not only when the modality for reading the signal value for the patient is a radiographic imaging device (ie, not only when the system is a radiological imaging system), but also CT as described above. The same can occur with different modalities such as MRI, ultrasound equipment, etc. (ie, if the system is a broader medical image output system). Further, not only when the same signal value read by a certain modality is image-processed under the first condition and the second condition to generate the first processed image and the second processed image. , The same can occur when a plurality of processed images are generated by image processing under a plurality of conditions.

Therefore, in the present invention, among a plurality of processed images generated based on the signal values read by a certain modality, each processed image can be displayed in an appropriate order according to the priority in the display system. It is also an object of the present invention to provide a medical image output system and an output device capable of outputting a medical image.

In order to achieve at least one of the above-mentioned objects, a radiographic imaging system that reflects one aspect of the present invention has the following:
By performing first images processing predetermined type of relative read signal values from the modality to generate a first processed image, the relative read the signal value first image processing and an image processing unit that generates second processed image image subjected to type is different from the second images processing,
A storage unit for storing the first processed image and the second processed image, respectively.
It includes an output unit that outputs the first processed image and the second processed image to a display system.
The output unit is determined for each type of image processing performed by the image processing unit, and prioritizes which of the first processed image and the second processed image is to be displayed. according, such that the first processed image or the second processed image is displayed with priority over a preset the display system, the display of the first processed image and the second processed image Radiation imaging system that outputs to the system.

In addition, a medical image output system that reflects one aspect of the present invention in order to achieve at least one of the above-mentioned objects has the following.
On the signal values read in medical imaging apparatus, an image processing unit for generating a plurality of processed images respectively subjected type is different from the plurality of image processing, respectively,
An output unit that outputs the plurality of processed images to the display system is provided.
The output unit is determined on the display system according to a priority order for prioritizing which of the plurality of processed images is to be displayed , which is determined for each type of image processing performed by the image processing unit. A medical image output system that outputs a plurality of processed images to the display system so that the processed images having a higher priority are displayed with priority.

Further, in order to achieve at least one of the above-mentioned objects, an output device reflecting one aspect of the present invention has the following.
Relative read signal values medical imaging apparatus, type is an output device for different image processing to output a plurality of processing images generated into effect in the display system, respectively,
The priority is high on the display system according to the priority order for prioritizing which of the plurality of processed images is to be displayed , which is determined for each type of image processing performed by the image processing unit. An output device that outputs the plurality of processed images to the display system so that the processed images are preferentially displayed.

According to the radiation imaging system of the method as in the present invention, it is possible to accurately prioritize and display either the first processed image or the second processed image according to the priority in the display system.

Further, according to the medical image output system and the output device of the method as in the present invention, among a plurality of processed images generated based on the signal values read by a certain modality, each process is performed according to the priority in the display system. It is possible to output each medical image so that the images can be displayed in an appropriate order.

It is a figure which shows the structural example of the radiation imaging system which concerns on this embodiment. It is a figure which shows the state which brings a round-trip car equipped with a radiation generator, a console, etc. into a hospital room and takes a picture. It is a figure explaining that the predetermined parameter is written in the header of the data of each image. It is a figure which shows the example of the table which defined the relationship between the processing type and priority in a display system. It is a figure which shows the modification of the table of FIG. It is a figure which shows the example of the table which set the condition setting about the display order of an image predetermined in the display system. It is a figure which shows the example of a plurality of radiographic images taken by long-length photography. It is a figure which shows the example of the long combined image generated by performing the combined processing on a plurality of radiographic images. It is a figure which shows the modification of the radiation imaging system which concerns on this embodiment. It is a figure which shows the modification of the table of FIG. It is a figure which shows that each processed image is output in the order of a default processed image, a rib removal image, and a time difference image from an output part and an output device to a display system.

Hereinafter, embodiments of a radiation imaging system, a medical image output system, and an output device according to the present invention will be described with reference to the drawings.

In the following, a case where the radiation detector that reads out the radiation transmitted through the subject as a signal value d is the above-mentioned radiation imaging device will be described, but in addition to this, for example, a luminescent phosphor sheet or the like is built-in. It may be a CR (Computed Radiography) cassette, or it may be a modality such as CT or MRI described above.

[Radiation imaging system]
The radiographic imaging system 100 according to the present embodiment will be described. FIG. 1 is a diagram showing a configuration example of a radiation imaging system according to the present embodiment, and is a configuration example when radiation imaging is performed in the imaging room Ra.

In this case, the imaging room Ra is provided with an imaging table 51 into which the radiographic imaging apparatus 1 can be loaded. In FIG. 1, the radiation imaging device 1 is a so-called portable radiation imaging device in which a plurality of radiation detection elements (not shown) that read out radiation transmitted through a subject (not shown) as a signal value d are housed in a housing. Although it is configured and used by loading it into the cassette holder 51a of the imaging table 51, the radiation imaging apparatus 1 is, for example, a so-called dedicated machine type integrally formed with the imaging table 5. It may be a radiographic imaging device (also referred to as a stationary type or the like).

Further, in FIG. 1, the photographing table 51A represents a photographing table for standing position photographing, and the photographing table 51B represents a photographing table for lying position photographing. Further, for example, it is also possible to insert a portable radiographic image capturing apparatus 1 between a subject (not shown) lying down on the top plate of the imaging table 51B for lying down and the top plate to perform imaging. is there.

The imaging room Ra is provided with at least one radiation generator 52 that irradiates the radiation image capturing apparatus 1 with radiation through a subject (not shown). Further, the photographing room Ra is provided with an access point 54 provided with an antenna 53 for relaying wireless or wired communication between each device in the photographing room Ra and each device outside the photographing room Ra. Is provided.

The access point 54 is connected to the generator 55 of the radiation generator 52, the console C, and the like, and the access point 54 is connected to the radiation imaging device 1, the console C, the generator 55 of the radiation generator 52, and the like. It is designed to relay the communication of.

Then, when the tube voltage, tube current, irradiation time, irradiation dose, etc. are set by an operator such as a radiation engineer, the generator 55 of the radiation generator 52 is changed from the radiation generator 52 to the set tube voltage, etc. Various controls are performed on the radiation generator 52, such as irradiating a corresponding dose of radiation.

The front chamber (also referred to as an operation room or the like) Rb is provided with an operation console 57 of the radiation generator 52, and the operation console 57 is operated by an operator such as a radiologist to radiate radiation to the generator 55. An exposure switch 56 for instructing the start of irradiation or the like is provided. Further, in the anterior chamber Rb, a console C composed of a computer or the like is installed. It is also possible to configure the console C so as to be provided outside the photographing room Ra or the anterior room Rb, a separate room, or the like.

A display unit Ca composed of a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), or the like is provided on the console C, and an input means Cb such as a mouse or a keyboard is connected to the console C. Further, a storage means Cm composed of an HDD (Hard Disk Drive) or the like is connected to or built in the console C.

Further, in the radiation imaging system 100 according to the present embodiment, the console C displays or prints the RIS (Radiology Information System) 101, the image generated by the console C, or the like via the communication network N. It is connected to a peripheral device 103 such as a viewer or a printer that outputs. Further, a display system A such as PACS is connected to the communication network N.

A system other than the display system A, such as another modality or another console C, for example, HIS (Hospital Information System), may be connected to the communication network N, and may be connected to the communication network N. The devices and systems to be connected are appropriately determined for each facility such as a hospital.

On the other hand, as shown in FIG. 2, it is also possible to bring the round-trip car 70 equipped with the radiation generator 52, the console C, and the like into the hospital room R1 to take an image. In this case, the generator 55, the access point 54 (both not shown), and the like are housed in the main body of the round-trip vehicle 70.

Then, in this case, as shown in FIG. 2, the radiographic imaging apparatus 1 is used for photographing so as to be inserted between the bed Be and the patient who is the subject H or to be applied to the patient's body. In this case as well, an operator T such as a radiologist operates the exposure switch 56 to irradiate radiation from the radiation generator 52 and perform imaging. Then, after imaging, for example, by connecting the console C to the communication network N shown in FIG. 1, the same radiation imaging system 100 as in FIG. 1 can be constructed.

In the present embodiment, the console C performs image processing on the signal value d read by the radiation image capturing device 1 (radiation detector) and transferred from the radiation imaging device 1 under the first condition, and first. The processed image p1 of the above is generated, and the second processed image p2 image-processed under the second condition different from the first condition is generated for the same signal value d transferred from the radiographic image capturing apparatus 1. To do. As described above, the signal value d transferred from the radiographic image capturing apparatus 1 is image-processed under the first condition to generate the first processed image p1 and the generated first processed image p1. It is also possible to further perform image processing under the second condition to generate the second processed image p2 (the same applies hereinafter).

Then, the console C stores the generated first processed image p1 and the second processed image p2 in the storage means Cm, respectively, and displays the generated first processed image p1 and the second processed image p2. It is designed to output to system A.

That is, in the present embodiment, the console C functions as the image processing unit and the output unit (output device; the same applies hereinafter) of the present invention, and the storage means Cm of the console C functions as the storage unit of the present invention. In the following, the case where the console C is configured to function as an image processing unit or an output unit will be described.

However, in addition to this, for example, by connecting a computer or storage means other than the console C to the communication network N, the console C transmits a signal value d or the like to the other computer or the storage means, and the other To perform image processing on the computer, output each image, or save each image on a storage means (that is, make the other computer or storage means function as an image processing unit, an output unit, or a storage unit). It is also possible to configure.

Further, the signal value d or the like may be directly transferred from the radiation image capturing apparatus 1 to the other computer or the like described above without passing through the console C, and image processing or output may be performed by the other computer or the like. It is also possible to configure the image processing unit and the output unit to be provided on the photographing device 1.

Further, the storage unit may be configured by an HDD or the like like the storage means Cm of the console C described above, or a RAM or the like that temporarily stores the first processed image p1 and the second processed image p2. It may be the memory of.

The display system A displays the output unit, that is, the first processed image p1 and the second processed image p2 output from the console C in the present embodiment on the display screen Aa composed of a CRT, an LCD, or the like, and is mainly used. This is a system for an image interpreter or a diagnostician to perform image interpretation, diagnosis, etc. by looking at the first processed image p1 and the second processed image p2 displayed on the display screen Aa.

Note that, in FIG. 1, only the portion of the display system A including the display screen Aa and the like is shown. However, in the display system A, although not shown, the first processed image p1 and the second processed image p1 and the second are shown. The necessary equipment such as a storage device for storing a database or the like for accumulating image data such as the processed image p2 is provided. In addition, the display screen Aa for interpretation and the display screen Aa for diagnosis may be provided separately, and the display screen Aa for interpretation may be provided in a clinic or the like which is relatively small and does not have an interpretation doctor. In some cases, there is only a display screen Aa for diagnosis, but in the present embodiment, all of these cases are collectively referred to as a display system A.

Further, FIG. 1 shows a case where there is one display system A that outputs the first processed image p1 and the second processed image p2 from the console C, but outputs the first processed image p1 and the like. There may be a plurality of display systems A to be displayed.

[Control of image display on the display system by the output unit]
In the radiation imaging system 100 according to the present embodiment, which of the first processed image p1 and the second processed image p2 is displayed first on the display screen Aa of the display system A on the console C side which is the output unit. It is designed to control whether to let it. In the following, the output unit C, the image processing unit C, and the storage unit Cm will be described for the sake of simplicity, but the console C functions as the output unit and the image processing unit even if it is expressed in this way. , It does not mean that the storage means Cm is limited to the case where it functions as a storage unit.

Specifically, in the present embodiment, the output unit C prioritizes which of the first processed image p1 and the second processed image p2 is displayed in the display system A, which is a preset priority. A display system for displaying the first processed image p1 and the second processed image p2 so that the first processed image p1 or the second processed image p2 is preferentially displayed on the display screen Aa of the display system A according to the order. It is designed to output to A.

Hereinafter, some configurations for realizing the above control will be described as an example. In addition, the operation of the radiation imaging system 100 according to the present embodiment will also be described. In the following description, it is assumed that there is only one display system A unless it is clearly stated that there are a plurality of display systems A.

[Structure 1-1]
As the simplest case, for example, in a facility such as a hospital, regardless of the processing type, the first processing that is image-processed under a specific condition (first condition) on the display system A. It may be determined that the image p1 (for example, a default processed image or the like) is displayed with priority over the second processed image p2 that has been image-processed under a second condition different from the first condition. Moreover, the display system A is configured to determine an image (first processed image p1 or second processed image p2) to be preferentially displayed on the display screen Aa based on the order of output from the output unit C. May be.

The processing type is a type of image processing performed when the first processed image p1 to the second processed image p2 are generated in the image processing unit C, and the processing type includes, for example, the above-mentioned catheter /. Includes the generation of gauze-enhanced images, long combined images, rib removal images, mammo diagnostic aid images, and the like.

Then, in this case, the output unit C gives priority to the first processed image p1 on the display screen Aa of the display system A according to the priority in the display system A (that is, the first processed image p1 has priority). The first processed image p1 is configured to be output to the display system A before the second processed image p2 in order to be displayed.

That is, in this case, the output order is predetermined so that the output unit C outputs the first processed image p1 to the display system A in the order of the first processed image p1 → the second processed image p2, regardless of the processing type in the image processing unit C. Be done. Then, the output unit C is configured to output the first processed image p1 before the second processed image p2 according to the output order.

As described above, for example, the catheter / gauze-enhanced image (that is, the second processed image p2) → the first from the console C to the display device in the operating room in order to show the catheter / gauze-enhanced image to the surgeon in charge of the operation immediately after the operation. Even when the processed image p1 is output in the output order of the first processed image p1 → the second processed image, which is a predetermined output order when the output unit C subsequently outputs the processed image p1 to the display system A. Each image is output in the order of p2 (surgery / gauze emphasized image). That is, each image is output in the output order opposite to the output order when the images are output to the display device in the operating room.

In this case, since the display system A is configured to display the images on the display screen Aa in the order of output from the output unit C as described above, the images are displayed in the order of output from the output unit C. An image is displayed on the screen Aa. That is, in this case, since the first processed image p1 is output first from the output unit C as described above, the first processed image p1 is preceded by the second processed image p2 on the display system A. Is displayed.

As described above, in [Structure 1-1], the output unit C controls the output order of the first processed image p1 and the second processed image p2 to the display system A (first processed image p1 → second). By controlling the output in the output order of the processed image p2), it is possible to control the display system A so that the first processed image p1 is preferentially displayed regardless of the processing type. It will be possible.

In the above [Structure 1-1], the first processed image p1 (the first image processed under a specific condition (first condition)) on the display system A regardless of the processing type. It is decided to preferentially display the second processed image p2 image-processed under the second condition different from the specific condition (first condition) instead of the processed image p1 (for example, the default processed image). If so, contrary to the above, the output unit C is configured to output each image in the output order of the second processed image p2 → the first processed image p1.

[Structure 1-2]
Further, in a facility such as a hospital, the first processed image p1 (for example, the default processed image) is displayed with priority over the second processed image p2 on the display system A regardless of the processing type. It is the same as the above [Structure 1-1] in that it is determined as such, but for example, parameters associated with the first processed image p1 and the second processed image p2 are set, respectively, and the display system A May be configured to determine an image (first processed image p1 or second processed image p2) to be preferentially displayed on the display screen Aa based on the parameters associated with each image. ..

That is, as shown in FIG. 3, the output unit C associates the parameter P with each image by writing a predetermined parameter P at a predetermined position in the header of the data D of each image, and displays the parameter P. The system A reads, for example, a predetermined parameter P written at a predetermined position in the header of the data D from each image, and the image having the smaller value of the parameter P is better than the image having the larger value of the parameter P. May be configured to be preferentially displayed on the display screen Aa.

Then, in this case, the output unit C gives priority to the first processed image p1 on the display screen Aa of the display system A according to the priority in the display system A (that is, the first processed image p1 has priority). In order to be displayed, a parameter P having a value smaller than the value of the parameter P associated with the second processed image p2 is associated with the first processed image p1 and output to the display system A. Will be done.

That is, in this case, the value of the parameter P associated with the first processed image p1 is the value of the parameter P associated with the second processed image p2 in the output unit C regardless of the processing type in the image processing unit C. The parameter P associated with each image is set so as to have a value smaller than. Then, the output unit C is configured to output each image associated with the parameter P to the display system A in this way. In this case, the output order may be any of the first processed image p1 → the second processed image p2 and the second processed image p2 → the first processed image p1.

Then, in this case, as described above, in the display system A, the image having the smaller value of the parameter P associated with each image is preferentially displayed on the display screen Aa regardless of the processing type. Therefore, the first processed image p1 associated with the parameter P having a smaller value is prioritized over the second processed image p2, and the image is displayed on the display screen Aa.

As described above, in [Structure 1-2], the output unit C controls the value of the parameter P associated with the first processed image p1 and the second processed image p2, respectively (the parameter P associated with the first processed image p1). By controlling the value of to be smaller than the value of the parameter P associated with the second processed image p2), the first processed image p1 has priority on the display system A regardless of the processing type. It is possible to control so that it is displayed.

In the above [Structure 1-2], it is determined that the second processed image p2 is preferentially displayed on the display system A instead of the first processed image p1 regardless of the processing type. If so, contrary to the above, the output unit C controls and outputs the value of the parameter P associated with the second processed image p2 to be smaller than the value of the parameter P associated with the first processed image p1. It is configured to do.

[Structure 2-1]
Next, as in the above [configuration 1-1] and [configuration 1-2], the display system A displays the display screen Aa based on the output order from the output unit C and the parameter P associated with each image. The image to be displayed with priority on the top (first processed image p1 or second processed image p2) is determined, and as described above, image processing is performed under certain specific conditions (first condition) in any processing type. Instead of configuring the first processed image p1 (for example, the default processed image) to be displayed in preference to the second processed image p2, the first processed image p1 and the second processed image p2 In some cases, the priority order for prioritizing which one to display is predetermined for each processing type.

That is, for example, as described above, when the processing type is the generation of the catheter / gauze-enhanced image from the first processed image p1, the catheter / gauze-enhanced image (second processed image) is displayed on the display system A. For example, the default processed image (first processed image p1) is displayed with priority instead of p2), but when the processing type is a long combined image (see FIGS. 7A and 7B), the display system A displays the image. , It is determined that the long combined image long (second processed image p2) shown in FIG. 7B is preferentially displayed instead of each radiation image p (first processed image p1) shown in FIG. 7A. In some cases.

As described above, in the display system A, a preset priority order for prioritizing which image is to be displayed is determined for each type of image processing in the image processing unit C, that is, for each of the above processing types. In some cases.

Then, in this case, the output unit C has a relationship between the above-mentioned processing type and the priority in the display system A in advance. At that time, this relationship can be held in the form of a table T1 as shown in FIG. 4, for example, and will be described below based on this table T1, but it is not always necessary to have the above relationship in the form of a table. Absent. Further, the table T1 may be stored in a memory such as a ROM in the form of a file, or may be written in a program, and the format in which the output unit C holds the table T1 is limited to a specific format. Not done.

Then, the output unit C will refer to the table T1 based on the processing type input by the operator such as a radiologist or the processing type calculated from the image processing performed by the image processing device C, and eventually in the display system A. The first processed image p1 image-processed under the first condition with respect to the signal value d read out by the image (that is, the radiation image capturing device 1 (radio detector)), and the first processed image p1 different from the first condition. The priority order indicating whether to preferentially display (any of the second processed images p2) image-processed under the condition of 2 is determined.

Then, the output unit C is configured so that the display system A preferentially determines the image to be displayed on the display screen Aa based on the order of output from the output unit C as in the above [Structure 1-1]. If so, the image having the highest priority is output to the display system A first. Further, as in the above [Structure 1-2], when the display system A is configured to preferentially determine the image to be displayed on the display screen Aa based on the parameter P associated with each image. Is output to the display system A in association with each image so that the value of the parameter P associated with the image having a high priority is, for example, a smaller value.

With this configuration, the output unit C determines the images to be preferentially displayed for each processing type according to the table T1, and outputs the images having the higher priority in the output order so as to be preferentially displayed on the display system A. By changing the parameter P associated with the image or changing the parameter P, the first processed image p1 or the second processed image p2 is controlled to be preferentially displayed on the display system A according to the processing type. It becomes possible.

[Structure 2-2]
In the table T1 shown in FIG. 4, when the processing type is the generation of a mammography auxiliary image, the default processed image or the like (first processed image p1) in which the breast is photographed on the display system A is more than the default processed image (p1). Mammography diagnostic auxiliary image (second processed image p2) generated based on conditions (second condition) such as adding marks and borders to masses and calcified parts extracted from the default processed images and the like (second processed image p2). The case where it is decided to display with priority is shown.

However, for example, some interpreting doctors and diagnosticians may want to see a default processed image or the like without any mark or border before such a mammographic diagnostic auxiliary image. Therefore, in such a case, for example, as shown in FIG. 5, a table T1 ^* is created, and in the additional condition column, the doctor who wants to see the default processed image etc. and the mammography diagnosis auxiliary image are given priority. Sort out the doctors you want to see.

Then, when an operator such as a radiologist inputs the name, ID, etc. of the image interpreter or diagnostician into the output unit C, the output unit C refers to the table T1 ^* and gives priority to the default processed image or the like. It can be configured to determine if the mammography auxiliary image has priority.

In this way, additional conditions can be set for the relationship between the processing type and the priority in the display system A (that is, a table), and the output unit C displays an image on the display system A (for example, a table). That is, it is also possible to configure so that which of the first processed image p1 and the second processed image p2 is preferentially displayed) can be controlled in more detail.

There may or may not be additional conditions. Further, in the above example, as a case where the additional condition is set, the case where the processing type is the generation of the mammography diagnosis auxiliary image is illustrated, but it goes without saying that the additional condition can be set in other processing types. No. Further, the content of the additional condition is not limited to the case of the doctor's name, ID, etc. as described above, but may be, for example, for each patient or for each clinical department, and it is possible to set appropriate content. ..

[Structure 3]
By the way, in the above [configuration 1-1] to [configuration 2-2], the display system A is displayed on the display screen Aa based on the output order from the output unit C and the parameter P associated with each image. A case has been described in which either the first processed image p1 or the second processed image p2 is preferentially displayed.

However, when the display system A is not configured as described above and the display system A is preset with conditions relating to the display order of each image (first processed image p1 and second processed image p2). There is also. Then, the condition setting in the display system A may be different for each manufacturer of the display system A, for example.

For example, when the display system A is a PACS, communication between the output unit C (console C) and the display system A (PACS) via the communication network N (see FIG. 1) is a standard for medical information exchange. It is often configured to be performed based on the DICOM (Digital Imaging and Communications in Medicine) standard, which is a standard.

Then, in the PACS which is the display system A, since the image (the first processed image p1 and the second processed image p2 in the present embodiment) is output from the output unit C based on the above DICOM standard, the DICOM standard. In some cases, the display order of images is determined based on parameters such as the series number, series instance UID, image number, and SOP instance UID attached to the image, and which parameter is used to determine the display order is determined by PACS. May vary by manufacturer.

Therefore, the output unit C can be configured to have information on condition setting related to the display order of images predetermined in the display system A (PACS) in advance. At that time, the information of this condition setting can be held in the form of a table T2 as shown in FIG. 6, for example, and will be described below based on this table T2, but the above information is not necessarily in the form of a table. It is not necessary to have it, and as in the case of the above table T1, it may be held in the memory such as ROM in the form of a file, or it may be written in the program.

Note that the condition 1 and condition 2 in the condition setting table T2 shown in FIG. 6 have the same image number (condition 1) of a plurality of images output from the output unit C, for example, when the type is PACS of company A. In some cases or when the image is not numbered, it indicates that the display order is determined based on the SOP instance UID of the condition 2 (for example, the smaller SOP instance UID is displayed first). It is also possible to configure the conditions to be set in more detail.

Then, the output unit C acquires the AE title (see FIG. 6) of the PACS which is the display system A in advance or at the time of outputting the image. Then, as described above, the table T1 (see FIG. 4; shown in FIG. 5) is based on the processing type input by the operator such as a radiologist and the processing type calculated from the image processing performed by the image processing apparatus C. The case of the table T1 ^* is also included. The same shall apply hereinafter) to determine the priority order indicating which of the first processed image p1 and the second processed image p2 is to be displayed preferentially in the display system A. ..

Then, the output unit C calculates the conditions (condition 1 and condition 2) in the acquired AE title with reference to the table T2 (see FIG. 6), and under the calculated conditions, on the display system A (PACS). An image number appropriate for the first processed image p1 and the second processed image p2 so that the image to be displayed with priority (first processed image p1 or second processed image p2) is displayed with priority. And SOP instance UID are assigned and set, and the first processed image p1 and the second processed image p2 are output to the display system A (PACS).

Further, as in the "C company PACS2" of the table T2, the condition setting regarding the image display order predetermined in the display system A (C company PACS2) is the reception order (that is, the output order from the output unit C). If so, the output unit C prioritizes the image to be displayed (for example, the first processed image p1) determined by referring to the table T1 before the other images (for example, the second processed image p2). It is possible to determine the output order so as to output to the display system A (PACS) so as to output the first processed image p1 and the second processed image p2.

With this configuration, the output unit C calculates an image (first processed image p1 or second processed image p2) to be preferentially displayed for each processing type according to the table T1, and further displays the image according to the table 2. The first processed image p1 and the second processed image p2 are displayed on the display system A by setting parameters and determining the output order based on the condition settings related to the image display order predetermined in the system A. By outputting, the first processed image p1 or the second processed image p2 is appropriate on the display system A according to the processing type and the condition setting regarding the display order of the images predetermined in the display system A. It is possible to control the display so that it is displayed in preference to.

In the table T2 shown in FIG. 6, the case where the type of PACS which is the display system A is classified by the AE title is shown, but in addition to this, for example, the classification is performed by the IP address, the computer name used in PACS, and the like. It is also possible to configure it to do so. Further, in the above [configuration 3], when the communication between the output unit C and the display system A is configured to be performed based on a standard other than the above DICOM standard, the table T2 is the same. Created in a format suitable for the standard.

[effect]
As described above, according to the radiation imaging system 100 and the output device (output unit C) according to the present embodiment, the display system A gives priority to either the first processed image p1 or the second processed image p2. The priority of prioritizing the display is the first processed image p1 (regardless of the processing type, for example, [Structure 1-1] and [Structure 1-2] above. For example, the default processed image) may be displayed in preference to the second processed image p2, or other [Structure 2-1], [Structure 2-2], and [Structure 3]. ], It may be predetermined for each processing type.

Then, in the present embodiment, the output unit C preferentially displays the first processed image p1 or the second processed image p2 on the display system A according to such a priority order. The first processed image p1 and the second processed image p2 are displayed by determining the output order of the processed image p1 and the second processed image p2 to the system A, setting parameters for each image, and the like. Output to system A.

Therefore, on the display system A, it is possible to accurately prioritize and display either the first processed image p1 or the second processed image p2 according to the priority order in the display system A.

Therefore, when an image interpreter or a diagnostician (or a patient, etc.) views an image on a display system A such as PACS, it is necessary to accurately prevent an unintended image from being displayed before the desired image. (See, for example, a first processed image p1 that is not a catheter / gauze-enhanced image and a long combined image pron that is a second processed image p2 (see FIG. 7B). ) Etc.) can be prioritized and accurately displayed on the display system A.

As described above, the output unit C (console C in the above embodiment) refers to the table T1 based on the processing type, and in the display system A, the first processed image p1 and the second processed image p2. The priority order indicating which of the above is displayed with priority is calculated, and the parameters are associated with the first processed image p1 and the second processed image p2 and the output order is determined based on the calculated priority order. The timing may be the time when the first processed image p1 is subjected to image processing to generate the second processed image p2, or may be the time when each image is output to the display system A, and may be output to the display system A. Any timing may be used as long as it is before the time of output.

Further, when there are a plurality of display systems A capable of outputting the first processed image p1 and the second processed image p2 by the output unit C, the above configuration for realizing the control by the output unit C according to the present embodiment. (That is, [Structure 1-1] to [Structure 3]) may have a configuration common to each display system A, or may have a different configuration for each display system A. Needless to say, in the case of the above [configuration 3], the parameters assigned to each image are set or the output order is determined for each display system A based on the table T2.

Further, when a plurality of second processed images p2 are generated from one first processed image p1 (or a plurality of radiation images p (see FIG. 7A) in the case of long imaging), an output unit. C is preferentially displayed according to a priority order in which one of all the images (that is, the first processed image p1 and the plurality of second processed images p2) is preferentially displayed in the display system A. It is configured to output the first processed image p1 and the plurality of second processed images p2 to the display system A so that the image to be displayed is displayed with appropriate priority on the display system A.

[Extension of the present invention]
By the way, as described above, the present invention is not limited to the case where the radiation detector is a radiation imaging device, and a CR cassette, a mammography device, and CT (Computed Tomography. In this case, so-called X-rays are used. CT) in a narrow sense may be used. Further, the imaging does not have to use radiation, for example, it is a modality of CT (so-called broadly defined CT), MRI, ultrasonic device, etc. using positron emission tomography or single photon emission tomography. May be good. That is, as can be seen from the gist of the present invention described above, the present invention can extend the object to a medical imaging apparatus capable of photographing the body (imaging site) of a patient by using various methods. Is.

Further, in the above embodiment, the case where the console C (see FIG. 1) functions as the image processing unit and the output unit (output device) of the present invention has been described, but the image processing unit and the output unit (output device) are combined. It is also possible to configure it as a separate device. That is, as shown in FIG. 8, for example, the console C (or an image processing device separate from the console C) is used as an image processing unit, and a device such as a gateway is used as an output unit (output device). It is also possible.

In FIG. 8, the output unit and the output device of the present invention are described as the output device C ^* , and the above-mentioned radiation imaging device and modalities such as CT and MRI are described as the medical imaging device M. ing. Further, although the entire system is described as a medical image output system 200, as described above, the medical image output system 200 includes the radiation imaging system 100 in the above embodiment.

On the other hand, in the above embodiment, the signal value d read by the medical image capturing device M (radiation imaging device 1 in the case of the above embodiment) is image-processed under the first condition and the first image is processed. When the processed image p1 is generated and the second processed image p2 image-processed under the second condition different from the first condition for the same signal value d is generated, that is, two types are generated from the same signal value d. The case where the processed images p1 and p2 of the above are generated has been described.

The present invention is not limited to the case of generating two types (that is, the first and the second) of processed images p1 and p2 as described above, but also in the case of generating a plurality of processed images. It can be expanded. In this case, the output unit and the output device C ^* are configured to have a relationship between the above processing type and the priority in the display system A in advance in the form of a table T1 ^** as shown in FIG. 9, for example. Is possible.

Then, the output unit and the output device C ^* give priority to the processed image having a higher priority on the display system A according to the priority order in which which of the plurality of processed images is prioritized to be displayed in the display system A. It is configured to output a plurality of processed images to the display system A so as to be displayed.

Specifically, for example, an image processing unit (console C or the like) performs image processing on the signal value d read by the medical image capturing apparatus M under a plurality of conditions, and as a processed image, for example, a default processed image pa. Assuming that three types of processed images, a rib removal image pb and a time difference image pc, are generated, the output unit and the output device C ^* output to the display system A with reference to the table T1 ^** shown in FIG. Decide the order.

In this case, in the table T1 ^{** of} FIG. 9, it is determined that the rib removal image pb is prioritized over the time difference image pc, and the default processed image pa is prioritized over the rib removal image pb. In the output unit and the output device C ^* , the default processed image pa is given the highest priority on the display screen Aa of the display system A, and then the rib removal image pb is given priority and displayed according to the priority in the display system A. In order to do so, as shown in FIG. 10, the default processed image pa, the rib removal image pb, and the time difference image pc are output to the display system A in this order.

In the above case as well, as in the case of the above embodiment, as shown in FIG. 9, the priority order in the table T1 ^** is configured to be determined for each type of image processing in the image processing unit. It can also be configured to prioritize by doctor, patient, or department.

Further, as in the case of the above embodiment, the output unit and the output device C ^* are configured so as to determine the output order of a plurality of processed images (for example, pa, pb, pc) in the display system A as described above. Instead, for example, it is possible to write a predetermined parameter P at a predetermined position in the header of the data D of each image so that the parameter P is associated with each image and set. In this case, the display system A is configured to preferentially display a predetermined processed image on the display screen Aa according to the parameter P.

With the above configuration, a plurality of processed images (for example, pa, pb, pc) generated by image processing each of the signal values d read by the medical imaging apparatus M under a plurality of conditions are displayed. When outputting to the system A, the output unit and the output device C ^* prioritize on the display system A according to the priority of prioritizing which of the plurality of processed images to be displayed in the display system A. It is possible to output a plurality of processed images to the display system A so that the processed images having a high value are preferentially displayed.

Therefore, as in the case of the above embodiment, among a plurality of processed images (for example, pa, pb, pc) generated based on the signal value d read by a certain modality (that is, the medical imaging apparatus M). , Each medical image can be output so that the processed images can be displayed in an appropriate order (that is, in the order of pa, pb, pc, for example, as shown in FIG. 10) according to the priority in the display system A. It will be possible.

Therefore, when an image interpreter or a diagnostician (or a patient, etc.) views an image on a display system A such as PACS, it is necessary to accurately prevent an unintended image from being displayed before the desired image. This makes it possible to give priority to processed images that an image interpreting doctor, a diagnostician, etc. want to see, and accurately display them on the display system A.

In the above embodiment, the image processing unit (for example, console C) is based on the signal value d (for example, the signal value d obtained by photographing the front of the chest) transferred from the modality (for example, the radiation imaging apparatus 1 or the like). The output order and the like when a plurality of processed images (or the first and second processed images p1 and p2) are generated and output to the display system A by the output unit and the output device C ^* have been described.

However, there are cases where an image different from these (for example, an image obtained by photographing the side surface of the chest) or the like is output from the output unit or the output device C ^* to the display system A together with the processed images. Then, in that case, for example, the output order and the like are determined in advance by setting the priority order for the output order and the like of the plurality of processed images generated from the same signal value d and the images and the like different from the processed images. The output unit and the output device C ^* can also be configured to output the processed images and other images to the display system A according to the output order and the like.

Further, it goes without saying that the present invention is not limited to the above-described embodiments and the like, and can be appropriately modified as long as the gist of the present invention is not deviated.

It may be used in the field of radiographic imaging (especially in the medical field).

1 Radiation imaging device (radiation detector)
52 Radiation generator 100 Radiation imaging system 200 Medical image output system A Display system C Console (image processing unit, output unit)
C ^* Output device Cm Storage means (storage unit)
d Signal value H Subject M Medical image capturing device P Parameter p1 First processed image p2 Second processed image T1, T1 ^* Table (priority for each type of image processing)
T2 table (condition setting related to image display order)

Claims (11)

By performing first images processing predetermined type of relative read signal values from the modality to generate a first processed image, the relative read the signal value first image processing and an image processing unit that generates second processed image image subjected to type is different from the second images processing,
A storage unit for storing the first processed image and the second processed image, respectively.
It includes an output unit that outputs the first processed image and the second processed image to a display system.
The output unit is determined for each type of image processing performed by the image processing unit, and prioritizes which of the first processed image and the second processed image is to be displayed. according, such that the first processed image or the second processed image is displayed with priority over a preset the display system, the display of the first processed image and the second processed image Radiation imaging system that outputs to the system. The output unit includes the first processed image and the second processed image so that the first processed image or the second processed image is preferentially displayed according to the priority in the display system. The output order of the first processed image and the second processed image are set, or the parameters associated with the first processed image and the second processed image are set, and the first processed image and the second processed image are output to the display system. The radiation imaging system according to claim 1 . Further, the output unit determines the output order or sets the parameters based on the condition setting regarding the display order of the images predetermined in the display system, and the first processed image and the said. The radiographic imaging system according to claim 2 , wherein the second processed image is output to the display system. The radiation imaging system according to any one of claims 1 to 3 , wherein the image processing unit generates the second processed image by further performing image processing on the first processed image. The radiographic imaging system according to any one of claims 1 to 4 , wherein the priority is determined for each combination of the type of image processing and the doctor, patient, or clinical department. On the signal values read in medical imaging apparatus, an image processing unit for generating a plurality of processed images respectively subjected type is different from the plurality of image processing, respectively,
An output unit that outputs the plurality of processed images to the display system is provided.
The output unit is determined on the display system according to a priority order for prioritizing which of the plurality of processed images is to be displayed , which is determined for each type of image processing performed by the image processing unit. A medical image output system that outputs a plurality of processed images to the display system so that the processed images having a higher priority are displayed with priority. The medical image output system according to claim 6 , wherein the priority is determined for each combination of the type of image processing and the doctor, patient, or clinical department. The output unit determines the output order of the plurality of processed images so that the plurality of processed images are preferentially displayed in the display system according to the priority order, or a parameter associated with each of the plurality of processed images. The medical image output system according to claim 6 or 7 , wherein the plurality of processed images are output to the display system. The output unit further determines the output order or sets the parameters based on the condition setting regarding the display order of the images predetermined in the display system, and displays the plurality of processed images. The medical image output system according to claim 8, which outputs to the system. Relative read signal values medical imaging apparatus, type is an output device for different image processing to output a plurality of processing images generated into effect in the display system, respectively,
The priority is set on the display system according to a priority that prioritizes which of the plurality of processed images is to be displayed , which is determined for each type of image processing applied to the processed image. An output device that outputs the plurality of processed images to the display system so that the higher processed images are preferentially displayed. On the signal values read in the medical imaging apparatus, an output apparatus according type is different from the plurality of image processing each of the plurality of processing images by facilities to claim 10 for generating respectively.

Images