Planning, introducing and building PACS and RIS systems is a system engineering, which is different from the introduction of medical imaging equipment such as CT, MR, CR, etc., and perform PACS and RIS systems for most domestic hospitals and their medical imaging. The planning, design and argumentation process still has considerable difficulty and more difficult to grasp.
In the formal PACS planning and introduction process, the usual step is to create a demand document, called RFP (Requirement for Proposal), as a program file that guides the entire system introduction process. When it is sufficiently planned and defined in the demand plan, the main system requirements may be required, and then the introduction and construction of the system is completed according to this program, this is a successful implementation of hospital medical imaging discipline information construction. Reliable guarantee.
However, complete a truly valuable RFP requires the technical level of the planned information system (such as the PACS system) and the knowledge and skills in related fields, otherwise it will be difficult to make RFP truly to ensure the system Programming guidance documents for successful implementation.
The RIS system is also one of the most important medical imaging information systems in the hospital, and its associated medical imaging information environment is jointly related to PACS. Especially in recent years, the DICOM standard has expanded to the RIS management domain, and the definition of the information stream management model of the medical imaging environment in IHE (Integrating the Healthcare Enterprise), which defines a deeper demand for the RIS system planning. For the user, its key point is that the medical imaging information environment must be designed and planned as a whole, which should have successfully realized the basic requirements of the medical imaging information construction in hospital medical imaging, so the RIS system planning should also Transfer to one of the basic contents of RFP.
Here, in the domestic hospital environment, implement PACS and RIS system planning, design, purchase, and build processes may need to consider and argue, or to establish issues and requirements for the establishment of hospital PACS and RIS system demand programs should be summarized. Description and introduction, I hope to provide valuable reference to the hospital medical imaging informationization process.
First, PACS system 1. Image acquisition equipment (MODALITY):
The introduction and purchase of image acquisition devices is not included in the introduction of PACS and the category of purchase, but the image device is used as the front end of the PACS system. It is part of the PACS system planning and the purchase process must be considered and demonstrated. Because the PACS system must be smooth Connection and data communication between existing (or purchase) image acquisition devices that are included in the PACS system management framework. During the PACS planning and purchase process, the DICOM standard compliance with the DICOM standard compliance with the DICOM standards and the video communication connection (CONNECTIVITY).
1) DICOM standards follow the argumentation: The following needs can also be used as a new image acquisition device purchase process in addition to the application of the PACS planning and purchase. The DICOM SOP support type and its execution function need to be confirmed are as follows:
Basic DICOM SOP compliance:
DICOM SOP support
Character
Function Description
Storage *
SCU
Transfer DICOM images (PUSH) to PACS system devices that support DICOM Storage Sop (as SCP roles) (such as PACS servers or PACS workstations)
Modality worklist
SCU
Directly obtain the patient's demographic information (name / ID / age, etc.) and check related information, automatically complete the data login process of the image inspection device console
Modality Performed Procedure STEP (MPPS)
SCU
Execute an image checkup process and check status information to the RIS system (and PACS system), usually as a procedure that matches the Worklsit SOP execution process
Storage Commitment
SCU
In the image remote stored procedure, the image storage execution process and status information are used, which is usually implemented in the application of the Storage Sop implementation image archive storage (Archiving).
SCU
Perform the image printout process from the image device or PACS device to send images to the DICOM printer through the network
Extended DICOM standards:
DICOM SOP support
Character
Function Description
Storage *
SCP
Accepts image from other imaging devices or PACS systems (such as PACS workstations)
Query / Retrieve
SCU
Queries and extract DICOM images directly from PACS system devices (such as PACS server or PACS workstations) that support DICOM Query / Retrieve SCP
* The most basic requirement is to provide at least the support of the storage (Storage) execution process of the imaging device, for example, the imaging device is a CT machine, then at least requests to support the CT Storage SCU, if an MRI device is required, At least the MR Storage SCU is supported.
In general, digital imaging devices after the mid-1990s can provide Storage SCU support, and usually use the standard configuration of the device, and specific compliance details should be based on the DICOM Conformance Statement documentation documentation documentation. After the end of the 1990s, the MODALITITY Worklist SCU has also gradually increased the standard configuration of its image device. In recent years, it has gradually increased MPPS and Storage CommTment SCU as a standard configured image device; the extended DICOM standard complies with the list listed, general situation Equipment providers will use their options for imaging equipment, which proposes such demand for devices. This type of demand may increase investment, so the hospital should decide whether to perform such functional plan according to the actual needs.
2) Video communication connection (Connectivity):
a) DICOM image connection and communication: In a typical PACS image workflow, the image should be transferred directly from the image acquisition device to the archive process of the PACS server to complete the image, that is, the DICOM image device should logically directly PACS server connection and communication, because DICOM Storage SCU is the most basic DICOM standard of the image acquisition device, and support for DICOM Storage SCP is the most basic requirement and attribute of the PACS server, so DICOM in the PACS system The image acquisition device communicates directly with the PACS server and completes the archive stored process (Archiving), which is an inevitable requirement. For some PACS provider's system topology, the image of the DICOM image device passes through a certain type of special workstation or the so-called "DICOM gateway" and then transferred to the PACS server system configuration, the user is necessary to propose this in the planning and introduction process. Doubt and prudent arguments.
b) Non-DICOM image device connection and communication: For imaging equipment supported by DICOM standards before the mid-1990s, complete connection and communication with the PACS system needs to use a class called "DICOM gateway" to complete After the conversion of non-DICOM images to DICOM images, then transferred to the PACS server to complete the archive stored procedure. Therefore, there is a hospital in which this situation is considering the planning and purchase of the PACS system, it should be included in the planning category of "DICOM Gateway". The "DICOM Gate" execution of the usually used mainly includes the following ways:
* Software Upgrade: Requires imaging device providers to execute image device software upgrades to complete support for DICOM image output. If the investment status allows, this should be used as the preferred way, which can usually obtain a standard DICOM IOD (such as a CT IOD or MR IOD) type output, but this software upgrade is usually more expensive.
* Dedicated DICOM Gateway device: Some image device can provide a dedicated DICOM gateway device for accessing non-DICOM image devices, using such private gateway devices to achieve more reliable and high DICOM image conversion However, there is also a problem of pricing to bearel in most hospitals in China. * Video acquisition conversion: The video capture conversion here is usually consisting of a DICOM gateway solution provided by a PACS system, consisting of video capture cards and conversion control software. The advantage is that once the non-DICOM device is eliminated, the gateway can still be applied to other video devices (such as B-ultrasound) with video output, and the disadvantage is that the image quality lack of standard control means and the acquisition operation may be inconvenient.
Other image format conversion methods also have a non-DICOM image of the image acquisition device by (such as FTP), and the image format conversion operation is directly outputted after the DICOM image is output. The gateway software module obtained by the user has only corresponding to the image type of a particular imaging device in the user environment, and such image devices have been close to the elimination period, once the device stops using, the DICOM gateway software applied It is difficult to apply directly to other equipment for hospitals, and its investment is also terminated. In this significance, the hospital needs full arguments and trade-offs for the planning of this DICOM gateway during the plan.
2. PACS Server Management Systems (including Workflow Management and Interface System) PACS Server Management System Planning and Purchase Demonstration may require the following aspects:
1) DICOM standards follow: Complete compliance should include communication, database design, and image media storage format management three levels provide the DICOM standard Part 8 (Communication), Part 6 (Data Definition) and Part 10 (Media Storage) / File format full support for definitions and specifications.
a. DICOM Communication: Basic DICOM SOP compliance:
DICOM SOP support
Character
Function Description
Storage *
SCP
Provide archive storage services for DICOM images, accept DICOM images from PACS system (such as image acquisition devices or PACS workstations) supporting DICOM Storage SCU
Query / Retrieve
SCP
To support the PACS system device (such as PACS workstation) to support DICOM Query / Retrieve SCU, image query and transfer service
Storage Commitment
SCP
Perform the ability to perform image security storage during image remote storage, and the status information delivery of the notice image is completed
* Support for the Storage SCP of all images defined for DICOM standards should be provided
b. Database Design: DICOM Dictionary (DICOM Dictionary) The data type, attribute, etc., which may be involved in the execution of the DICOM standard specification, and PACS (including RIS) system database design provides DICOM standard Part 6's data definition of data definitions is the basis for ensuring that the system has always had good adaptability and compatibility in the medical imaging information environment. If a PACS provider's system product database design does not provide sufficient support for DICOM Dictionary (DICOM Standard Part 6) and its properties, in the actual application of the user environment, such as executing some new SOPs As new image types) During execution, this database is likely to occur in incompatible and matching issues, which may force PACS providers to perform changes to their databases, clearly, this situation is potential for users of PACS products Danger and disadvantage. But how to confirm that the system database of the PACS provider has compliance with DICOM Dictionary, which is more difficult to obtain determined information and evidence as a user-end hospital, maybe possible processing method is required to provide PACS to provide the hospital medical imaging information environment. The compatibility of all data types may involve.
c. Image Media Storage Format Management provides a complete compliance with DICOM standards in image storage and storage management formats, which is critical to the continued effectiveness of the data stored by the user, which should be considered the highest level of data security requirements. Briefly, in terms of image storage format management, a complete compliance with DICOM standards can be ensured that the security and effectiveness of image data vital to the hospital will not depend on a specific system provider, even if the system provider System Products or Its Maintenance Support Service Process is not continuous due to various reasons, and the hospital has to change or replace some or all of the existing system, and all video data information that the system has accumulated can still be exported to the new system management framework. This ensures that the continuity and continuous effectiveness of the management of data data of the hospital are not entirely discarded by partially "loss" because of the supplier or its products. Specific requirements, including two parts: (1) Require PACS provider to ensure a complete compliance with DICOM standards in Image Data Storage Format Management, including media storage support DICOM file-set definition and DICOMDIR format management; (2) The compression algorithm is required to provide and execute the DICOM standard definition. Some system providers perform their own proprietary compression algorithms, although their claims can achieve no loss of loss of compression, such results are completely suffocating the open features provided by DICOM standards, making hospital image data. It is completely dependent on the software execution process (unzipped process) of a particular system provider, which obviously faces potential dangers of the continuous and effectiveness of image data. 2) Online storage system and equipment planning
Image archive storage (Archiving) is the basic task and functional requirements of PACS, the selection of storage management mode and application devices, and there is a significant impact on the response rate of the system. At the same time, the image storage device and its management system part also affect the total PACS. The main factor in investment. Therefore, the plan for the PACS system storage management device should pay quite important.
Typical PACS storage modes and management processes are typically divided into online, offline, and offline storage and management. Hospitals should require system providers to provide automatic execution and management of the power execution and management of mobile execution and management of the three state storage management mode, which can provide automatic execution and management of the three state storage management mode, which is the basic requirement for the PACS server management process.
Usually, online storage disk arrays are implemented, generally using RAID-5 configurations to provide good fault tolerance, high data reading rate and maximum disk space utilization. The near-line storage currently uses the CD / DVD JUKEBOX or the DLT Jukebox implementation, it is recommended to adopt the former. Tape Storage Management is high, in order to ensure data storage reliability and good reading capabilities, you may need to perform regular transcription and rewrite operations on data tape. Image data is located in the online or near-line storage location. You can perform an automatic query and image automatic migration, transfer, offline storage refer to image data storage media unit (such as disc, tape, etc.) that is placed in a storage medium. The system cannot perform an automatic reading operation process of image data on offline storage media, requiring artificial intervention operations.
The passable PACS system storage architecture is "Disk Array Disc Library (or Tape Library)" mode, which is better to take into account the fast response capability of recent video data (online storage), and automatic reading operation of China-Yuan video Ability and implementation of the three aspects of the investment level implementation. The online storage cost should be designed according to the user's investment level, thereby completing the PACS storage management solution that is the most close to the hospital's actual situation.
In recent years, with the significant reduction in disk arrays, especially the "SCSI to IDE" mode disk array is technically mature, providing a very attractive choice for PACS storage programs. The hospital can now use the regular PC storage, the price is very high-cost disk array online storage, based on such disk arrays, the hospital can scale the "fully online" storage scheme of the PACS system, that is, extended online storage in year ( Disk array) The capacity method, truly realizes all images all in the online state, providing a complete guarantee for the fast response capability of the system, and because all images are online, only simple CD burning devices (CD / DVD- R) As an image data "Backup" solution, you can save an expensive CD library or tape library investment in traditional PACS storage schemes, so that the overall investment level and efficiency of the system can be optimized. Therefore, it is recommended to select "Disk Array-CD / DVD-R" in the PACS system online storage schedule and perform image full online storage management mode. Another low-end PACS storage solution is a simple storage method based on a normal PC configuration hard disk. Although this type of scheme has a low investment level, the PC system is unstable, and the response rate of the PC hard disk reads and writes I / O Limitation, etc., varying degrees to restrict this type of storage. Although PC storage can also realize the RAID-5 class's fault-tolerant configuration based on the operating system, its efficiency is also affected by factors such as system resources. Therefore, the storage method based on ordinary PC is applied to the PACS system stored in a medium-size mode or more than a large unfavorable factor.
3) Imaging workflow management capabilities
The application operation process of the PACS image is mainly the diagnostic browsing process of the medical image. The particularity of this process is that the image data capacity of the operation and processing is huge, that is, the image diagnosis process not only needs to operate the currently check image sequence, but often needs to operate the same patient. All images have been checked for multiple (multiple), and these images may be stored in the local hard drive, or within the remote (such as the PACS server) system online or near-line storage, even in multiple different storage Manage system management domains. This situation determines that it is difficult to obtain a higher system response rate, and the image of the PACS system online storage and expansion network bandwidth is difficult to meet demand, which is the Workflow Management process of PACS image work in recent years to bear and Implemented task.
Currently, the PACS workflow management process includes automatic routing, pre-fetching, and pre-loading, and the like. The execution efficiency and response rate required by the PACS image diagnostic process can only be reliably guaranteed by truly effectively utilizing a specific image workflow management process.
Therefore, it is recommended that the hospital proposes a specific demand for the image workflow management process in the PACS system to ensure that the PACS provider can meet the specific requirements of the hospital response.
3. PACS Workstation System PACS Image Planning and Purchase Demonstration may require the following aspects:
1) DICOM standard compliance with the foundation of the DICOM standard:
DICOM SOP support
Character
Function Description
Storage *
SCU
Transfer DICOM images from workstation (PUSH) to PACS system devices that support DICOM Storage SCP (such as PACS Server or other PACS workstation)
Query / Retrieve
SCU
Queries or tested DICOM images from a PACS system device (such as PACS server or other PACS workstation) that supports DICOM Query / Retrieve SCP.
Print Management
SCU
Execute the image from the workstation network to the DICOM printer complete the image printout process
* Storage SCU support that should be provided to the hospital or future image IOD type
It will be described here that the PACS image workstation DICOM standard compliance is not required. The requirements for the PACS Image Workstation Safe DICOM standards often indicate the increase in investment quota, and the increase in each DICOM standard may require additional payment, reducing the workstation to DICOM standard compliance. The number indicates a decrease in investment. Therefore, hospitals are required to evaluate and study the DICOM standards necessary for each / group PACS workstation, in order to propose a normal working process of hospitals and medical imaging disciplines. The basic needs of the DICOM standards for image workstations. The object of the PACS image workstation is mainly the PACS server. If the hospital's image discipline uses the same PACS provider's product completion system build tasks, the PACS workstation and the server, the workstation and workstation communication usually does not have to perform the low rate of DICOM communication, and More efficient image data exchange can be achieved by providing internal defined communication methods. However, considering that the medical imaging disciplines often have other third-party network system resources (such as image collection equipment, post-processing workstations, etc.), and the development of imaging disciplines and the future extension may introduce third-party system equipment, so at least A image station should consider the necessary DICOM standard compliance to provide a workstation-based PACS system to provide a workstation-based channel-based interface-based interface-based interface.
PACS Workstation For the Dicom Print Management SCU support, you can provide a convenient execution of the PACS system hard copy output, but the workstation has the execution of the image film printout capacity to make any per capita per capita per capita permitted film hard copy output process. This may increase the difficulty of film output management of medical imaging disciplines, and these factors need to be considered and trade-off during the implementation of the PACS system planning process.
2) The planning and consideration of the workstation configuration and configuration is mainly two planning and considerations, namely display resolution and workstation configuration configuration selection.
Display resolution is a problem that needs to be carefully considered. In the current level of workstation hardware technology, select a higher resolution indicate that the investment may significantly increase, so based on the national conditions, it may be necessary to determine the effective investment level of the hospital to meet the basic diagnosis requirements. Not to significantly increase the PACS workstation display resolution planning scheme for hospital investment pressure. According to the ACR (America College of Radiology) standard, the resolution requirements of the PACS diagnostic workstation are divided into two categories. One type is Small Matrix Images such as CT / MR / RF / DSA, etc., display resolution 512 × 512 × 8bit can meet the diagnosis Requirements, the color display of the normal PC should be substantially satisfied with resolution requirements; the other class is called Large Matrix images, such as CR / DR images, ACR is defined by the resolution requirements for 1024 × 1024 × 10bit, this requires professional The grayscale display can achieve this parameter indicator. However, the investment pressure caused by professional grayscale monitors may have an endurance problem in most hospitals in China. As a variable solution, the hospital can use a widescreen color display (resolution is usually up to 1600 × 1200 × 8bit) As an alternative, it is recommended that the hospital allowed by the investment level must ensure that at least a standard grayscale display is planned to ensure the diagnosis of complex case images and the quality of consultation.
On the selection of the workstation configuration configuration, due to the operation and completion of the medical imaging diagnosis, the PACS and RIS system workflows need to be physically integrated in the same location in this link, therefore, the image The configuration and configuration of the diagnostic workstation should adapt to this need and provide an optimized implementation to make the diagnostic physician can easily perform the operation of the PACS and RIS system related software modules. The workstation configuration of a single-screen dual screen (a host configuration two displays) should be a more desirable configuration, which can provide the diagnostic physician with the ability to perform the RIS diagnostic reporting process and the PACS soft copy image browsing process, while double screen You can provide a larger image browsing and display space than single screen, which is advantageous for the operation and execution of the diagnostic process. Currently, the computer operating system such as Windows 98, Windows 2000, and Windows XP can easily implement single-screen dual screen configuration configurations. Recommended Hospitals Select the image workstation of the single-screen dual screen when conducting a PACS workstation plan. 4. Medical image browsing service system
The management and application of modern PACS has been extended to the entire hospital information environment. In addition to the imaging diagnostics of imaging disciplines, another important application area is to provide networked medical imaging support services for hospital clinical treatment. . Now use a web way (intranet method), that is, a web server that provides medical image and its related information browsing services within the PACS system framework, providing images, image checks, and image diagnostic reports for the overall information environment of the hospital. Browse function.
The hospital is mainly concerned about the following aspects: 1. Image Process Design and DICOM Standards: It may require video web server to provide different DICOM SOP compliance according to different image data processes. Normally, the following DICOM SOP should be supported:
a) Storage SCP: Storage SCP for all DICOM image IOD types that may be applied in the hospital information environment should be required. Executing the Storage SCP can accept DICOM images from the PACS server, that is, the image of the radiology PACS can migrate a copy to the Web server management environment via DICOM communication. B) Query / Retrieve SCU: Execute the DICOM Query / Retrieve SCU to enable the web server to query and extract the required images directly to the PACS server.
2. Considering image format and compression: The image format usually has two options, one is to provide DICOM format image browsing; another option is to convert DICOM images to JPEG and other normal image formats. It is recommended to use Dicom image browsing mode because DICOM images can provide browsers with a more rich patient and image related information and operational functions. From the reduction of hospital information environment network dry bandwidth pressure and to ensure browsing efficiency, video browsing services typically need to browse the image after compression (lossless compression) of the image, which is also necessary from a safe point of view, the purpose is This type of image to the entire hospital information environment is unlike the original image management of the PACS server stored as a medical file. If possible, you should emphasize that the user can customize the compression magnification of the image so that it can be easily selected to provide the compression ratio of the appropriate image quality.
3. Information and data of integrated RIS system: In addition to providing video browsing services, image check related information such as diagnostic reports, check status information, etc., should be able to provide browsing services through the web service, which requires providers to be able to Integrated PACS and RIS data information.
4. User security control of image data browsing (the control of the image workstation and the management of user rights): The sharing of the entire information environment in the hospital is actually open to the public environment to a certain extent, so it exists. Security problem. The basic security management mode currently used includes two categories, one is the control of the image browsing workshop, that is, only the specified workstation is permitted to perform image browsing operations by software management; another way is user registration and authority management, that is, only allowed The user can perform the image browsing operation by executing the user of the registration process by specifically managed user registration procedures. The combination of the two can provide safe guarantees to some extent. 5. Display resolution and workstation configuration required by clinical imaging: According to ACR standards, clinical imaging browsing procedures can meet demand, so it usually does not have special requirements for image browsing workstations. However, since the data is operated is a medical image, it is often required to perform operation and processing of images or more than dozens of frames. Therefore, such image browsing work stations should be configured with sufficient system resources (such as CPU, memory, network interface bandwidth). Second, the RIS system
The RIS system planning is a need for considerable attention to the hospital and its medical imaging department. This is because the introduction and implementation of the RIS system is a key composition of the medical imaging discipline information environment. In other words, the traditional management model of the image discipline is completed. To digital, computerized management mode conversion process, mainly with a set of RIS systems that solve the overall workflow of the radiology and success.
The planning of the RIS system should emphasize two points: (1) process system management. The overall workflow of the radiology is required to manage, control, and operations, rather than simple operations with a relatively independent functional module centered on the workstation; (2) Compliance and execution of relevant standards and specifications. Now discuss the planning of the RIS system, there are two unvautical content, namely the standard (DICOM / HL7) compliance with the IHE process scheme.
1. IHE process schemes and standards (DICOM / HL7) Follow the IHE process solutions (DICOM / HL7) compliance with similar meanings for modern RIS system planning, because IHE definition process model is primarily classified (mainly It is a DICOM and HL7 standards to perform data information in the hospital information environment (focused on imaging environment) optimization execution and communication. When the hospital users perform RIS system planning, they should focus on the requirements and consider two points:
1) Requirements the necessary DICOM SOP support and HL7 interface communication capabilities. DICOM SOP compliance, at least the support of Modality Worklist SCP and Modality Performed Procedure Step SCP should be provided; HL7 support, in the RIS-HIS communication interface, the HL7 interface capability of bidirectional (delivery and reception) data communication, in RIS The -PACS level can provide at least an unidirectional (RIS to PACS) HL7 communication interface.
2) The response capability that requires continuous tracking and executing the IHE process scheme. The definition of IHE process is a dynamic change and growth process. The RIS provider has the ability to track and quickly respond and perform new process schemes. In addition to the grasp of development status and trend, it is more important to hospital. In particular, the characteristics and needs of the medical imaging discipline work process are understood and grasp. Really understanding such processes, the implementation of software is relatively easy. Since the development of the IHE process is a dynamic process, the implementation of the RIS system in the hospital user environment (including the operation management, functional operation procedures, the design and adjustment of workflow models) should also be a dynamic process, hospital This should be paid and considered when planning.
2. System overall workflow management RIS system planning must emphasize the management of the implementation of the overall workflow of the medical imaging discipline, that is, the operation and processing of various links in the actual process of imaging, design with special function module design On the basis, it should also emphasize the centralized centralized control and management of each function module to perform processization, ie, centralized management mode, and software architectures are available in Server / Client mode. Centralized management enables operation of each execution process in the RIS conventional workflow to effectively control, and can also reliably guarantee the efficiency of data interaction between different functional modules. 3. Other related factors Consider 1) System User-chemical process: The RIS system is an information management system with fairly prominent demand, one because of its associated information management flow (PACS system and other information management system), at the same time, hospitals with different levels and scale There may be a large amount of personalized process implementation and application practical requirements. Therefore, hospitals in planning the RIS system, should have a number of personalized and characteristic running operations and management models, and emphasize and reflect in the proposed demand planning scheme. Since the user environment has a dynamic change in the demand of the RIS system, it is necessary to request that the RIS system provider has the ability to dynamically respond to user changes and new demand; from the functional implementation of the RIS system, should request RIS to provide Survival system products can give users sufficient user settings and definition capabilities, such as data items (such as checking parts / check department / application departments / toll / diagnostic templates, etc.) to provide flexible system execution mechanisms Adapt to complex user environmental needs. 2) User rights management: Due to many of the RIS system involves the generation, editing and processing of patient medical archives data, performing strict and independent user rights management is necessary. The hospital should make a clear and specific demand instructions on this when performing the RIS system plan. 3) Communication and interaction with the PACS, HIS system: The RIS system is in a certain sense to connect HIS and PACS an intermediate link, which is particularly protruding in the IHE process execution model. Therefore, RIS must have the corresponding functional execution capability to complete integration and data communication of HIS systems and PACS system workflows, ideal, should be integrated based on standard (mainly DICOM / HL7 standard). In the process of IHE definition, the RIS system needs integration and communication on the three links of the image acquisition device, the PACS server, and the image workstation. For this, the hospital should have appropriate considerations when performing system planning, and make a clear demand statement.
Third, the conclusions and descriptions, in general, the introduction plan for the implementation of medical imaging information systems (PACS and RIS) is a necessary and valuable process and task for domestic hospital users, completing a basic meeting of hospital related needs before the introduction of the system. Text can help the hospital easily define the scale of the system to be introduced, the main function indicators and tasks and tasks and tasks and to previct and control the actual investment levels. At the same time, planning text itself can also be introduced as a normative and guarantee system. Process guided file. Therefore, there is a conditional hospital recommended that the necessary summary and preparation of the hospital's actual needs and PACS and RIS system requirements before the implementation of the system introduction process, consult the professionals and institutions in this field, and establish their own PACS & The RIS system planning plan will greatly reduce the risk of system investment and ensure the effectiveness of system investment.
