KR100725867B1 - DICOM image transit system in PACS system - Google Patents

Abstract

The present invention relates to a digital imaging and communication in medicine (DICOM) image relay system of a medical image storage and transmission system, wherein the medical image information from the medical image storage and transmission system is transferred to a mobile communication device such as an external personal terminal (PDA). It relates to a system for relaying and transmitting.

The present invention DICOM image relay system of the medical image storage and transmission system, PACS server 100 for storing the database DICOM image; A PACS terminal 400 accessing a DICOM medical image through authentication from the PACS server 100, displaying an accessed result, capturing a selected image, and transmitting the same through a Bluetooth network; First communication means (600) for transmitting a DICOM medical image received from the PACS terminal (400) via a Bluetooth network through an EV-DO wireless network (700); And second communication means 800 for receiving the DICOM medical image transmitted from the first communication means 600.

Accordingly, the present invention captures and transmits a screen on a monitor of a PACS terminal to a wireless terminal in a short distance, and transmits it through an EVDO network using a mobile VPN, thereby transmitting medical image data to an external terminal at high speed, even at a long distance. The medical image can be provided and diagnosed through this, high-speed medical image information can be transmitted at high speed, and two-way voice communication can be performed at the same time. Can be transferred.

DICOM, PACS, VPN, PDA

Description

DICOM image transit system in PACS system of medical image storage and transmission system

1 is a schematic diagram illustrating a configuration of a DICOM image relay system of a medical image storage and transmission system according to an embodiment of the present invention.

2 illustrates an example of displaying a medical image received by the first communication unit of FIG. 1.

FIG. 3 is an example in which Exif type parameters correspond to a tag in FIG. 1.

FIG. 4 is an explanatory diagram of a layer of Bluetooth in a Bluetooth network when a DICOM image is transmitted from a PACS terminal to a first communication means in FIG. 1.

FIG. 5 is an explanatory diagram of a communication structure using an EVDO network during DICOM video transmission from the first communication means to the second communication means of FIG.

6 is a schematic flowchart of a DICOM video call from the first communication means to the PACS terminal in FIG.

7 is a flowchart illustrating authentication of the DICOM video relay system of FIG. 1.

FIG. 8 is an explanatory diagram for explaining a path of DICOM video data in the DICOM video relay system of FIG. 1.

9 is a sequence diagram for the overall data transmission path in the DICOM video relay system of FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital imaging and communication in medicine (hereinafter referred to as DICOM) image relay system of a medical image storage and transmission system. The present invention relates to a system for relaying and transmitting a mobile communication device such as a PDA).

As electronic technology has advanced, a wide variety of medical devices have been introduced. For example, devices such as computerized tomography (hereinafter referred to as CT) and magnetic resonance imaging device (hereinafter referred to as MRI) have been developed. These devices enable many diagnostic tests that were not possible in the past, and also helped to make more precise diagnosis.

In addition, due to the remarkable development of diagnostic imaging equipment in recent years, the role of diagnostic radiology has rapidly increased, and about 50-70% of patients who visit a hospital undergo radiological examination, and the appropriate treatment policy is determined by the result. In addition, hospitals are increasingly large, specialized and organized. Therefore, an important issue is how to efficiently conduct and read diagnosis and tests by medical imaging and how quickly the readings are delivered to clinicians.

Such equipment includes computed tomography (CT), magnetic resonance imaging (MRI), radiation (X-RAY) equipment, ultrasound (hereinafter referred to as US) devices, angiography (ANGIO), and colposcopy (COLPOSCOPY) and cervical imaging system (CERVICOGRAPHY) have been widely used in internal medicine, surgery, obstetrics and gynecology. However, when a patient visits a clinic with a doctor who can read a medical image for a medical examination, a doctor who does not have medical imaging equipment or a busy shooting schedule even with medical imaging equipment is provided. Consultation hospitals introduce other hospitals, such as radiation hospitals, where medical imaging is possible. Medical imaging equipment and / or the medical image that can take a medical image when the hospital does not have both a medical imaging equipment and a reading doctor, and even if the medical examination equipment is equipped with a medical imaging equipment without a reading doctor The patient is sent to a hospital with a reading physician who can read the results and the results are obtained. Therefore, the existing off-line medical diagnosis system is inefficient because it causes a patient or a clinic to wait a lot of time and costs a lot to obtain medical image data and medical image reading results.

In addition, if there is no intention of reading, the examination hospital will request medical image data of the patient to the reading broker, and the reading broker will send the medical image data to the reading group and send the reading back to the reading broker. Sending the examination to the hospital again to proceed with consultation with the patient, which also takes a considerable time and money for the patient and the examination hospital because the medical image data is sent and received offline.

In particular, these medical imaging equipment is very expensive, so each hospital does not have it and even if they have such medical imaging equipment, there are no doctors who can read the medical image. The photographing was taken at a hospital having the medical imaging equipment and taken to a reading doctor who could read the photographed film or photographed medical image data, and the reading result was known. The offline medical diagnosis system is not only able to operate expensive equipment efficiently, but also it is difficult to provide high quality medical services. In addition, in the current offline medical diagnostic system, patients and readers cannot efficiently photograph and diagnose, so the number of medical imaging equipment and doctors are insufficient compared to the number of patients to be photographed. It is pointed out that patients and doctors have to wait long to receive accurate medical image reading results.

Recently, hospitals are equipped with a Picture Archiving Communication System (hereinafter referred to as PACS).

PACS installs a computer network throughout the hospital, converts all X-Ray images into digital data, makes a database, stores them in a large storage medium connected to the server, and, if necessary, uses a computer monitor in each office. It is a system that stores and transmits medical images to enable X-ray images to be searched.

However, these PACSs are not yet used efficiently.

For example, in the case of an emergency room, emergency patients are photographed with computed radiography (CR) or CT, and these images are immediately taken to the PACS display workstation in the emergency room. You can check it. However, if an intern or resident who treats a lot of patients is unable to determine the patient's condition by their own opinion, they should consult an expert. However, even if the specialist is located in another department in the hospital or outside, since the emergency patient's image must be viewed immediately, a system for transmitting the image to a mobile device such as an expert's PDA is required. In addition, even if the expert accesses the DICOM image directly from the outside, it may take a long time during the authentication process and finding a diagnosis site among many images of the patient. In an emergency, the need for time transmission to the patient is minimized because of the great effect of time delay on the patient. In addition, PACS images sent to experts must transmit an undistorted image so that they can be identified.

That is, the medical image of the PACS terminal is transmitted to the expert's mobile device, and the image is more easily transmitted by minimizing the procedure and time that the expert accesses through the mobile device. It is desirable to send (undistorted image).

Accordingly, the present invention captures and transmits a screen on a monitor of a PACS terminal to a wireless terminal in a short distance, and uses EV-DO (Evolution Data Only) using a mobile virtual private network (hereinafter referred to as a VPN). (Original name is CDMA 2000 1X EV-DO) by transmitting the medical image data to any external terminal by transmitting the medical image data to provide a high-speed medical image at a long distance and to diagnose it through Provides DICOM video relay system of storage and transmission system.

In another aspect, the present invention provides a DICOM image relay system of a medical image storage and transmission system that can transmit high-resolution medical image information at a high speed and at the same time two-way audio communication.

In another aspect, the present invention provides a DICOM image relay system of a medical image storage and transmission system for transmitting high-resolution medical image information in a standard standard format as a communication means of a general standard.

The present invention has a medical image taken in a hospital equipped with a medical imaging device that has a medical imaging device equipped with equipment for taking medical images but do not have a doctor or a lack of a medical doctor and / or medical imaging equipment By transmitting the data to remote medical image readers, the medical image diagnosis process can be simplified, and the use of expensive medical imaging equipment and expensive medical image reading groups can be effectively performed. It provides DICOM image relay system of medical image storage and transmission system that can provide high quality medical service.

Here, PACS acquires medical images, especially radiological diagnostic images in digital form, transmits them through a high-speed network, and medical images are stored as digital data instead of past X-ray film. It is a comprehensive digital image management system and transmission system in which radiologists and clinical doctors use an image retrieval device to treat a patient instead of a conventional film view box.

PACS includes image display and processing, data communication and networking, database, information management, user interface, data storage and management. and management, etc., should be comprehensively established.

Such PACS can be divided into centralized system and distributed system according to the storage and retrieval path method of image data. Centralized system stores all image data in large central storage media, and when requested, the corresponding data As a method of transmitting to the inquiry system, all users (doctors) can access all the image data regardless of time and place, while data transmission is performed after the inquiry request, so a very fast data transmission speed is required. do.

On the other hand, a distributed system is a system for distributing and storing image data in one or more storage media according to a business characteristic, and each workstation temporarily stores a cached image of a local image (Local image storage). storage) characteristics.

PACS is generally divided into four subsystems (acquisition subsystem, storage subsystem, database subsystem, display subsystem), and classified into network subsystems connecting the four subsystems. As can be seen from the fact that each subsystem is connected, the failure of the network is the state that each subsystem is not connected and plays an important role in the safety of the system.

DICOM (Digital Imaging and Communication in Medicine) is a network for the first time to connect devices with different types of image information at the 1992 Radiological Society of North America (RSNA) conference. It started with the protocol for sending messages using. A Working Group (hereinafter referred to as the WG) for each of the American College of Radiology-National Electrical Manufacturers Association (ACR-NEMA) for standardization work was then formed. Had a Demo Currently, DICOM version 3.0 has been released, and it is becoming a standard for interlocking medical imaging equipment by understanding and developing the standard between users and companies, and expanding the standardization area.

The need for standardization of medical imaging equipment is due to the proliferation of the use and dissemination of digital imaging equipment such as NMR, CT, CR, US, and Nuclear Medicine (hereinafter referred to as NM). The College of Radiology (hereinafter referred to as ACR) and The National Electrical Manufacturers Association (hereinafter referred to as NEMA) formed the first organization to standardize in 1983. The purpose of this organization was to prepare a standard for interlocking medical imaging equipment that users want through standardization. Specifically, it includes not only the connection method between hardware for each device but also a standard form for interpretation of video and general information.

Initial analysis of existing data has provided information on some useful ways, although no standard satisfies everything. It is a variable length tag used by the American Association of Physicists in Medicine (hereinafter referred to as AAPM) to record patient and examination information using a header in front of the image data. The way of registering information with and keys was accepted by the committee. In addition, the network connection between the devices adopts the TCP / IP network protocol, which is used most often when connecting general computers, and the network defined by Open Systems Interconnection (hereinafter referred to as OSI). The step scheme was used as a model.

After the formation of the ACR-NEMA organization in 1985, the ACR-NEMA 300-1985 (ACR-NEMA Version 1.0) was presented at the RSNA conference based on two years of work, but it was not suitable for many errors and practical applications. Were discovered and the ACR-NEMA 300-1988 (ACR-NEMA Version 2.0) was re-released in 1988 to accommodate these errors and new requirements. At that time, the most demanded user was network linkage between video equipment. But version 2.0 also didn't have the level of network support users wanted.

Therefore, it is the DICOM version 3.0 that is currently used that supplements the previous weaknesses. DICOM version 3.0 introduced a new object-oriented design method from the design stage. Especially, it is possible to connect video equipment directly to the network, and to transmit the video by combining necessary header information and video information. I came to apply. In addition, the conventional image-related data transmission techniques mainly used a method using a health level (HL) 7.

This conventional method is a standard of the American National Standards Institute (ANSI), but has no tag and has been widely used in Europe or Japan as a guideline rather than a standard.

In the present invention, the medical image is transmitted and stored using the DICOM 3.0 file, and the medical image database is established through interworking with the hospital information system.

The background of the DICOM protocol has emerged as the medical industry has been informatized, and each medical device has been used in conjunction with each other rather than independently. For some promise was needed. In other words, in the past, there is no standard, and there are different methods for storing and communicating information depending on the type of video equipment and the type of video equipment, and the model of the video equipment. Therefore, in order to exchange information with each other, an expensive gateway must be purchased. Or no communication at all.

However, with the advent of the DICOM standard, equipment that conforms to this standard is able to exchange information with each other, regardless of the manufacturer or type of equipment, even if no special converter is required. This means that not only communication between DICOM-supported equipments existing in the hospital is possible, but also remote communication is possible.

In addition, since the network configuration method according to the present invention follows the standard method widely used in the computer industry, the DICOM standard can be easily applied to all medical imaging related systems such as the connection between hospitals, the communication between remote clinics, and the remote diagnosis system. There is a number.

Such DICOM is a query for image information generated by various digital imaging equipment including CT, MRI, US, NM, and information exchange with image output device connected to the search network, and digital like CD (Compact Disk). Integration of patient information, appointment information, examination information, and result information in conjunction with Hospital Information System (HIS) or Radiology Information System (RIS) using record media, and endoscopy and radiotherapy plan As a result, the trend is expanding into the field of pathology.

The DICOM image relay system of the medical image storage and transmission system of the present invention captures the screen shown on the monitor of the PACS terminal, compresses it to JPG, and then converts the metadata into an exif (exchangable image file format) format. It inserts patient information, hospital information, and the like into meta data, and transmits through the EV-DO network using a mobile VPN as the first communication means to monitor as a second communication means at a long distance.

The technical problem to be achieved by the present invention is to capture and transmit the screen on the monitor of the PACS terminal to a wireless terminal of a short distance, and transmit it through the EV-DO network using a mobile VPN, medical image data to any external terminal It is to provide a DICOM image relay system of medical image storage and transmission system that can transmit and receive high-speed medical image even at a long distance and make a diagnosis through it.

Another object of the present invention is to provide a DICOM image relay system of a medical image storage and transmission system capable of transmitting high resolution medical image information at high speed.

Another technical problem to be achieved by the present invention is to provide a DICOM image relay system of a medical image storage and transmission system for transmitting high-resolution medical image information in a standard format as a communication means of a general standard.

Another technical problem to be solved by the present invention is to provide a medical imaging device, but a medical examination hospital or a patient who does not have a medical doctor or a medical doctor and / or lacking a reading doctor is provided with a medical imaging device. Medical images taken at a hospital can be transmitted, allowing remote medical image readers to read them, simplifying the medical imaging process, and efficiently utilizing expensive medical imaging equipment and expensive medical image reading groups. In addition, to provide a DICOM image relay system of medical image storage and transmission system that can provide high quality medical services to patients.

Hereinafter, the configuration and operation of a DICOM image relay system of a medical image storage and transmission system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram for explaining a configuration of a DICOM image relay system of a medical image storage and transmission system according to an embodiment of the present invention. The PACS server 100, the PACS terminal 400, and the first communication means ( 600), a wireless network 700, and a second communication means (800).

The PACS server 100 converts all medical images into digital data (DICOM images), inputs them through a computer communication network, and stores them in a PACS database server (not shown) of the PACS server 100. TCP / IP 300 is used as a communication protocol used when input or output to the PACS server 100. TCP / IP is the basic communication protocol of the Internet.

The PACS terminal 400 accesses the DICOM image through authentication from the PACS server 100, displays the accessed result on the PACS terminal 400, and displays a first user (eg, an intern) among the displayed images. Alternatively, the resident selects a desired image (ie, a diagnosis site), and the PACS terminal 400 captures the selected image and transmits the selected image to the first communication means 600 through a Bluetooth network (500). )do. In this case, the first user may select a desired image (ie, a diagnosis site) from the images displayed on the PACS terminal 400 by using the PACS terminal 400, or the first user selects the first communication means 600. It is also possible to select a desired image (ie, a diagnosis site) from the displayed image.

Screen captured image captured by the PACS terminal 400 should be wirelessly transmitted to the first communication means 600. The transmission bandwidth of Bluetooth is theoretically down to 1Mbps, practically below 700kbps. Since it has a link speed, if the image of 1280x1024 resolution is captured in a non-compress method, the size of the image data of the image data is 1280 × 1024 × 3 = 3,932,160 bytes, and the transmission time is about 40. It will take more than a second. Therefore, it compresses and saves using jpg compression method (compression method developed by Joint Photographic Experts Group). In addition, in order to attach patient information or diagnostic hospital information to the JPG file, it is recorded as meta data in an Exchangeable Image File Format (hereinafter referred to as Exif).

However, since the Exif format is not a format created for the purpose of diagnostic images, some mismatched parameters correspond to the tag. In this case, the image destination tag is the type of medical image (CR, CT, MRI, etc.), the datetime tag is the date of DICOM image capture, the author tag is the patient name, and the copyright (Copyright) The hospital name may be input to the) tag and the ID of the patient may be input to the user comment tag. In addition, the Exif format allows you to enter more information, so you can insert additional content as needed. In addition, the item information may be converted into an extensible markup language (hereinafter referred to as XML) and converted into a format conforming to the Clinical Document Architecture (hereinafter referred to as CDA).

In addition, when the PACS terminal 400 authenticates at the PACS server 100, that is, when the PACS terminal 400 tries to connect to the PACS server, the PACS terminal 400 authenticates with the ID and password of the first user. In addition, the PACS terminal 400 authenticates the first communication means 600 with the device ID of the first communication means 600, and when the PACS terminal 400 transmits information, SAFER + algorithm, which is an encryption algorithm of Bluetooth itself. Use to secure.

The first communication means 600 is a mobile communication device of the first user, and the medical image information received from the PACS terminal 400 through the Bluetooth network is transmitted through the EV-DO (cdma 1x EV-DO network) wireless network. The image is transmitted to the communication means 800. The first communication means 600 is equipped with both Bluetooth and CDMA-EVDO module. When the medical image information is transmitted from the first communication means 600 through the Bluetooth network, the information transmitted through the Bluetooth is provided with a security function through encryption or the like.

In other words, when data is transmitted from the first communication means to the second communication means, it is transmitted using a cdma 1x EV-DO network because it is transmitted to a remote place, and the EV-DO network provides a dynamic IP address. A mobile server 750 is provided to relay IP between a first communication means (eg, a PDA of a resident) and a second communication means (eg, a PDA of a professional). Therefore, both the first communication means (for example, the PDA of the resident) and the second communication means (for example, the PDA of a professional) are connected to the mobile server having a fixed IP, and then the first communication means (for example, the PDA of the resident) The second communication means (for example, PDA) is connected.

When making an image call in the first communication means 600, pressing a shortcut button (image call key) in the first communication means 600, the call program in the first communication means 600 is activated. The calling program of the first communication means 600 merely serves to inform the PACS terminal of the call. The capture program of the PACS terminal 400 functions to capture an image when a call comes from the first communication means 600 and transmit it to the first communication means 600 again.

That is, when an image call key is pressed in the first communication means 600, when a calling program is operated, a log file is created in the PACS terminal 400, and a capture program in the PACS terminal 400 of the log file is used. When you capture the generation, you run the capture.

The mobile server 750 is a server that receives and relays an IP between the first communication means (eg, a PDA of a resident) and the second communication means (eg, a PDA of a professional). After the first communication means and the second communication means are both connected to the mobile server 750 having a fixed IP, the mobile server 750 connects the first communication means and the second communication means. That is, the mobile server 750 transmits telephone numbers and IP address information of two connected PDA terminals, that is, a first communication means (for example, a PDA of a resident) and a second communication means (for example, a PDA of a professional) to each different terminal. Inform the transmission to be made.

The second communication means 800 is a mobile communication device of a second user (for example, an expert), and displays the medical image received from the first communication means 600 through the EV-DO wireless network 700. The second communication means 800 is equipped with at least a CDMA-EVDO module. The second user is connected to the mobile server 750 by his second communication means 800, and the mobile server 750, as well as the mobile phone number of the second communication means 800 connected Because you know until, if the phone number is not registered in advance, access is restricted. The second user accesses the mobile server 750 and receives the image obtained by the first user from the PACS terminal 400.

In other words, among the images of the patient provided to the PACS terminal 400 in the DICOM format in a computer imaging apparatus (CR), a computed tomography apparatus (CT), a magnetic resonance imaging (MRI), etc., a first user (for example, an intern or Resident finds and captures a medical image (i.e., medical image of abnormal condition of patient) that requires expert opinion of second user (e.g. expert), and then captures and captures the first user's mobile communication device (e.g. PDA) The first user transmits the captured medical image to the second communication unit 800 by executing a PACS image calling program in the first communication unit 600.

The PACS video calling program in the first communication means 600 is executed to be executed by one-button click of the first communication means 600.

2 illustrates an example of displaying a medical image received by the first communication unit of FIG. 1. That is, FIG. 2 is an example of checking information recorded by an Exif method with an image viewer.

2 is a medical image in which a first user (eg, an intern or a resident) requires expert opinion of a second user (eg, an expert) among images of a patient provided to the PACS terminal 400. That is, it indicates that the medical image of the abnormal state of the patient is found and captured and transmitted to the first communication means 600 which is a mobile communication device (for example, PDA) of the first user.

2 shows that the first user displays the medical image received from the PACS terminal 400 in the first communication means 600.

Exif format is not designed for diagnostic images, so some mismatched parameters are used for tags.

FIG. 3 is an example in which Exif type parameters correspond to a tag in FIG. 1.

In FIG. 3, the image destination tag is the type of medical image (CR, CT, MRI, etc.), the datetime tag is DICOM image photographing date, the author tag is the patient name, and the copyright ( Copyright) Tag the hospital name, and user comment tag (ID) of the patient to enter respectively.

FIG. 4 is an explanatory diagram of a layer of Bluetooth in a Bluetooth network when a DICOM image is transmitted from a PACS terminal to a first communication means in FIG. 1. The Bluetooth layer configuration is similar to the Open System Interconnect (hereinafter referred to as OSI) Reference Model, and when the PACS image is transmitted, the transmission is performed in the application layer, which is the uppermost layer. .

In other words, in the present invention, the first communication means 600 is located in a limited area, such as a local area where a PACS terminal 400 connected to the PACS server 100 and the TCP / IP 300 is located. It can be seen as a terminal such as a resident, the second communication means 800 may be used as a terminal such as a specialist located in a remote area other than a hospital. There is no restriction on the type of terminal, but a terminal such as a PDA is preferable.

After the resident receives the DICOM image 200 of the PACS terminal 400 via the Bluetooth 500 from the first communication means 600, the second communication means of a specialist in a remote area for accurate reading of the image. You will have to send to 800 for advice. To this end, first, the second communication means 800 is dialed through the CDMA network and the situation is explained, and the patient's DICOM image is transmitted. In the case of the first communication means 600, which is a PDA of a resident, although not shown in the drawing, the Bluetooth and the CDMA-EVDO module are both models, and in the case of the second communication means 800 of the specialist, the CDMA-EVDO module is An installed PDA can be used.

In order to transfer files between two PDA terminals, it is necessary to check each other's IP addresses. The EVDO network provides an active IP, so you cannot specify an IP address between two PDAs. Therefore, a mobile server 750 capable of informing IP information must exist, and the mobile server 750 transmits the phone numbers and IP address information of two connected PDA terminals to each terminal.

When the DICOM image 200, which is a PACS image of a patient, is transmitted in a hospital and transmitted to an external device, it must be secured for privacy of the patient.

In the present invention, the medical image information of the patient is transmitted from the PACS terminal 400 to the first communication means 600, such as the PDA of the resident over the Bluetooth network 500 and the first communication means 600, such as the PDA of the resident It may be provided with a security means in the case of being transmitted through the EVDO network to the second communication means 800, such as a PDA of a specialist. First, when the medical image information received from the PACS terminal 400 is transmitted from the first communication means 600, which is a resident PDA, etc., via a Bluetooth network, a security function may be provided through encryption on information transmitted through Bluetooth. Can be. As an example, the SAFER + Secure And Fast Encryption Routine (SAFER +) algorithm, which uses up to 128-bit keys, enables device authentication at the link level, with a secret key derived from a Bluetooth pass key known as a Personal Identification Number (PIN). The paired device will be identified. After authentication, a distributed linker may be created between the PACS terminal 400 and the first communication means 600 in which encrypted traffic may be used on the link.

FIG. 5 is an explanatory diagram of a communication structure using an EVDO network during DICOM video transmission from the first communication means to the second communication means of FIG.

The communication between the first communication means and the second communication means tunnels and transmits information using a mobile VPN network. That is, in the communication using the EVDO network from the first communication means 600 (for example, the PDA of the resident) to the second communication means 800 (for example, the PDA of a specialist), the security level is maintained using the mobile virtual private network (VPN). do. VPN protects the IP layer of the network layer through the tunneling protocol to provide security for private network traffic through the public network, and uses the Internet Protocol Security protocol (hereinafter referred to as IPsec) for integrity and data origin. To ensure certification.

6 is a schematic flowchart of a DICOM video call from the first communication means to the PACS terminal in FIG.

The first communication means 600 determines whether an image call key is input (S10), and when the image call key is input to the first communication means 600, the first communication means 600 calls the PACS terminal 400. Inform.

A log file is created according to the image selection in the PACS terminal 400 (S20), and thus a file generation event occurs in the PACS terminal 400 (S30), and the capture program of the PACS terminal 400 is executed. Image capture is performed (S40).

7 is a flowchart illustrating authentication of the DICOM video relay system of FIG. 1.

When connecting to the PACS server 100 from the PACS terminal 400, authentication is performed with the ID and password of the first user, and the PACS server 100 transmits a response to the authentication to the PACS terminal 400. (S100). That is, when inquiring DICOM information of the PACS server 100 from the PACS terminal 400, the user accesses by inputting the ID and password of the first user.

The PACS terminal 400 authenticates the first communication means 600 with the device ID of the first communication means 600, and the PACS terminal 400 transmits a response to the authentication to the first communication means 600. (S150). That is, the PACS terminal 400 finds and confirms the device ID of the PDA, which is the first communication means 600, to check whether the PDA is an authenticated PDA.

The first communication means 600 transmits the phone number of the first communication means 600 to the mobile server 750 (S200), and the second communication means 800 also sends the second communication means (to the mobile server 750). The phone number of 800 is transmitted (S250).

The mobile server 750 checks whether the telephone number of the first communication means 600 is an authenticated phone number to the first communication means 600 and sends a response to the first communication means 600 (S300). The server 750 checks whether the telephone number of the second communication means 800 is an authenticated phone number to the second communication means 800 and sends a response to the second communication means 800 (S350). In other words, two PDAs of the first communication means 600 and the second communication means 800 are connected to the mobile server 750.

FIG. 8 is an explanatory diagram for explaining a path of DICOM video data in the DICOM video relay system of FIG. 1. In FIG. 8, data flows in the order of the numbers indicated by the arrows.

In the PACS terminal 400, a DICOM image is loaded from the PACS server (1 in FIG. 8), and a log file is received from the first communication means 600 (2 in FIG. 8).

The PACS terminal 400 then captures an image containing patient information in EXIF format and sends it to the first communication means 600 as a file (3 in FIG. 8).

The first communication means 600 transmits the captured image file to the mobile server 750 (4 in FIG. 8), and the mobile server transmits it back to the second communication means 800 (5 in FIG. 8). .

FIG. 9 is a sequence diagram of an entire data transmission path in the DICOM video relay system of FIG. 1.

The PACS terminal 400 finds a DICOM image from the PACS server 100 and displays the DICOM image (S500).

When the image call key is input from the first communication means 600 (S550), a log file is created in the PACS terminal 400 by the first communication means 600 (S600).

When a log file is created in the PACS terminal 400, the PACS terminal 400 captures a screen of a desired image by the first user (S650), and the captured image is compressed and stored using the jpg compression method. do.

In addition, the PACS terminal 400 receives patient information from the PACS server 100 (S700).

The compressed and stored captured image data is converted into Exif format and attached to the patient information and recorded as metadata (S750).

The image file recorded as metadata is transmitted to the first communication means 600 (S800).

The first communication means 600 and the second communication means 800 are connected to the mobile server 750 (S850, S900), after which the first communication means 600 communicates with the second server via the mobile server 750. The image file recorded as metadata is transmitted to the means 800 (S950 and S1000).

The present invention is not limited to the above described and illustrated in the drawings, and of course, more modifications and variations are possible to those skilled in the art within the scope of the following claims.

As described above, the dicom image relay system of the medical image storage and transmission system of the present invention captures and transmits the screen on the monitor of the PACS terminal to a short-range wireless terminal, and transmits the EV-DO network using a mobile VPN. Through the transmission, the medical image data can be transmitted to any external terminal so that a high-speed medical image can be provided at a long distance and diagnosed therefrom.

In addition, since the dicom image relay system of the medical image storage and transmission system of the present invention transmits high-resolution medical image information at high speed, a faster and more accurate medical image can be provided to a medical professional, which is further described for emergency patients. More rapid treatment can be achieved.

In addition, the medical image storage and transmission system of the present invention is equipped with a device for photographing a medical image, but a medical examination hospital or a patient who does not have a doctor or a medical doctor and / or medical imaging equipment lacking a reading doctor By transmitting the medical images taken in the hospital equipped with a medical image reader to remotely read the medical imaging diagnosis process can be simplified, and the expensive medical imaging equipment and expensive medical image reading group can be efficiently Not only can it be used, it can also provide high quality medical services to patients.

Claims (16)

delete delete delete delete delete delete delete delete delete delete A PACS server 100 for storing a database of digital imaging and communication in medicine (DICOM) images; A PACS terminal 400 accessing a DICOM medical image through authentication from the PACS server 100, displaying an accessed result, capturing a selected image, and transmitting the same through a Bluetooth network; First communication means (600) for transmitting a DICOM medical image received from the PACS terminal (400) via a Bluetooth network through an EV-DO wireless network (700); In the medical image storage and transmission system having a second communication means (800) for receiving a DICOM medical image transmitted from the first communication means (600); The first communication means 600 and the second communication means 800 includes a CDMA-EVDO module, The DICS image transmitted from the PACS terminal 400 to the first communication means 600 through the Bluetooth module is transmitted to the second communication means 800 through the EVDO wireless network 700. When the PACS terminal 400 captures the DICOM image 200 selected by the first communication means 600 and transmits the DICOM image 200 to the first communication means 600, the PACS terminal 400 includes a Secure And Fast Encryption Routine (SAFER +) algorithm. It further has a security function to encrypt, In addition, when the PACS terminal 400 captures the DICOM image 200 selected by the first communication means 600 and transmits the DICOM image 200 to the first communication means 600, the PACS terminal 400 is derived from a PIN (Personal Identification Number), which is a Bluetooth pass key. DICOM of a medical image storage and transmission system characterized by identifying a pair of devices distributed with a secret key, and creating a distributed linker that allows encrypted traffic to be used on the link between the PACS terminal 400 and the first communication means 600. Video relay system. delete delete delete delete In the DICOM image relay method of a medical image storage and transmission system comprising a PACS server, a PACS terminal, a first communication means 600, a mobile server, a second communication means 800, An image retrieval step of the PACS terminal finding a DICOM image from the PACS server and displaying the DICOM image; A log file creation step in which a log file is created in the PACS terminal 400 by the first communication means 600 when an image call key is input from the first communication means 600; An image compression step of creating a log file in the PACS terminal and compressing and storing the captured image using a jpg compression method when capturing a screen of a desired image; Receiving patient information at the PACS terminal, receiving patient information from the PACS server; A data recording step of converting the captured image data compressed and stored in the image compression step into an Exif format and attaching the patient information received in the patient information receiving step to record it as metadata; Transmitting the image file recorded as meta data in the data recording step to first communication means transmitted to the first communication means (600); The first communication means 600 and the second communication means 800 are connected to a mobile server, and the first communication means 600 is recorded as metadata received in the step of transmitting to the first communication means. Transmitting an image file to the second communication means (800) through the mobile server; at least a DICOM image relay method of a medical image storage and transmission system.

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