Health and the Information Highway Division, Health Canada
November 24, 2003
NORrad is a $10 million project to re-engineer the delivery of diagnostic imaging services in the most northerly communities in Eastern Ontario by means of implementing digital radiology technology and high-speed networks to move diagnostic images and interpretations between community and regional hospitals. Employing proven information and communications technology as an enabling factor, the NORrad vision will support physicians and other health care professionals in providing new and improved health care services for residents of the area.
The project is also unique in its complexity - bringing together representatives of nine independent health care organizations in and around the Cochrane District and James Bay health districts. This collaboration, known as the Northeastern Health Services Alliance came together for the first time under a common set of goals and objectives for improving health care services and delivery for the 100,000 people living across 150,000 square miles in the most northern communities of Ontario.
The NORrad Project is both a Picture Archiving and Communication System (PACS) and teleradiology initiative. PACS is a high-speed, graphical, computer network system for storage, retrieval, and display of radiographic images. With the addition of teleradiology infrastructure, PACS can be implemented over distant networks to provide remote access to patient images and medical report information. The NORrad Project therefore includes the following elements:
General Impressions of the Technology
Radiology Report Turnaround
Support from AGFA and Timmins technical staff
Productivity, Efficiency and the Working Environment
Patient care and convenience
Recruitment of Radiologist, Physicians and Technicians
Cost Savings
Privacy and Confidentiality
Lessons Learned
Ideally, patients requiring health care should be receiving the most appropriate treatment in the most appropriate setting at the most appropriate time and by the most appropriate provider. Unfortunately, technology limitations, human resource shortages and geographic distance have often worked to prevent some aspects of this desired outcome.
Many rural hospitals have a long-standing practice of physically sending conventional xray films of non-emergency cases to nearby larger facilities for consultation by specialists. Depending on the case in question, delays of several hours, several days, or as much as a week or more are commonplace and considered a fact of current medical practice. One should note, however, these consultation delays occur mainly in non-emergency cases and, as such, generally do not impact greatly on health outcomes of patients. Nevertheless, these delays represent system inefficiencies, additional document transportation costs, and added time for diagnosis and treatment decisions - not to mention inconvenience for the patient. In emergency situations, physicians commonly send the patient and the x-ray films to the referral center. In these cases, treatment delays are unavoidable and health outcomes are more influenced by the mode of transportation chosen.
Evaluation stakeholders across the NORrad region are reporting improved speed in report turnaround. Under a traditional film environment, turnaround was three to five days on average. Under PACS, turnaround has regularly become an overnight or often a same day service. Staff and physicians at Weeneebayko General Hospital in Moose Factory have noted a number of avoided patient transfers to Timmins and other referral sites since the installation of PACS. The Diagnostic Imaging Manager estimates that a single avoided transfer can save approximately $4,000-$5,000 in transportation costs.
Research studies in larger hospital imaging departments suggest that the rate of lost or misplaced radiology films usually varies between eight and 15 percent (Siegel & Reiner, 2002, Marchant, 1999, Anderson & Flynn, 1997) translating into hundreds of films being unaccounted for at any one time and going unreported by a radiologists. In many cases, films are recovered only after a replacement image was ordered, necessitating inconvenience for the patient and a delay in treatment. Not surprisingly, some films are never recovered, serving instead as a potential risk to the sanctity of patient identity and medical information.
To varying degrees of severity, all sites are experiencing regular delays in locating films from prior patient encounters due to mislabeling or misfiling within film libraries. In fact, some facilities have instituted processes to manually check each film envelope when it is returned from a consulting site to guard against misfiling. These search and refiling activities, although necessary, represent unproductive staff time and serve to highlight system inefficiencies that can delay diagnosis and treatment.
Additionally, in some cases, films are never located - often because they have been shipped to other treatment facilities and not returned or have been taken off-site by authorized persons (physicians, patients).
Clinicians and radiology staff have little to no problems finding and retrieving images from the PACS technology. The benefits of redirecting staff time away from "chasing film" to more productive efforts are already evident in more comprehensive reporting and improved turnaround times by radiology staff. Benefits should improve over time as more and more conventional films are purged from hospital and clinic file rooms in favour of electronically stored digital images with little to no occurrence of loss or misfiling.
Proper diagnosis and treatment of patient conditions and injuries is often dependent on ready access to the radiographic image when required. In a conventional film environment, access to the film at particular times is hampered when the image is in transport to or from a distance referral centre.
Rural hospitals under the NORrad project are currently required to physically send away conventional films, via taxi, courier or bus, for consultation by specialists at the Timmins and District Hospital. In fact, in most cases, films are picked up and delivered twice weekly. This constant transport of film, although ensuring a relatively quick turn around for reporting, has had a detrimental impact on the availability of films when requested for viewing by local physicians and other health care providers. Survey participants suggest that an inability to access films is the greatest challenge they face. This problem has often delayed diagnosis and treatment and may be a contributor to increased hospital length of stay.
This problem has been eliminated with implementation of PACS. Currently, physicians are able to access images in support of diagnosis and treatment decisions. Although average length of stay in a health facility can be influenced by a myriad of factors, several stakeholders feel that PACS technology will play a key role in promoting reduced hospital stays. Empirical data is not yet available to substantiate this belief.
The speed at which a technologist can produce conventional x-ray films and complete procedures with a patient relies on a number of factors including ready access to a functioning and reliable film processor. Subsequently, the reading and reporting of films by a radiologist is also influenced by a number of factors including, ready access to previous images, the amount of clerical time spent in physically handling films, and the workload currently being experienced by transcribing staff.
Diagnostic imaging technologists expect a marked improvement in throughput. An ability to avoid x-ray development or printing, labelling and filing is expected to save time and avoid delays. Additionally, the need for re-takes - cases where the conventional film image is distorted and unreadable - is expected to be virtually eliminated as electronic images can be manipulated for brightness and contrast; thereby, compensating for initial poor quality.
Some radiologists expect the electronic storage and retrieval of images may speed the reading and reporting of x-rays by as much as 25 percent. The improvement in throughput is caused by an avoidance of "clerical" duties in locating, reading and refilling plastic images.
Although not expected to be a significant issue for the radiologists in Timmins, who make use of a multi-loader device and have staff available to assist with film manipulation, the radiologist in Kirkland Lake does expect to see some increased throughput as a result of the PACS technology. He currently manipulates all films personally and does not have access to a multi-loader.
Overall, radiologists and family physicians are reporting significant improvements in report turnaround. In non-emergency cases, turnaround is said to have dropped from several days on average to an overnight or often same day service in many cases. PACS has eliminated the need for immediate patient transport to an urban center in urgent cases. Now radiologists and other specialists can be contacted and consulted within 30 minutes, thereby allowing for more informed treatment decisions, potentially less inconvenience for the patient, and better health outcomes.
Ready access to digital radiography images at all hours and an ability to manipulate these images to improve diagnostic findings form the hallmark of a PACS system. Unquestionably, such capabilities must function efficiently and reliability for a PACS system to be widely accepted and adopted by family practitioners, radiologists and other medical specialists.
Image Manipulation - The ability to manipulate images to varying degrees is expected by stakeholders to improve diagnostic accuracy and precision and to help avoid retakes because of poor image quality.
Access to Prior Images - Electronic storage of images will virtually eliminate the costly and time-consuming problem of misplaced, misfiled or lost films. Barring technical problems, physicians will have ready access to prior patient images at any time of the day or night, thereby, reducing the waiting time required for diagnosis and treatment and improving patient outcomes. This will be particularly useful to emergency room physicians who must staff the department during periods when film library staff are unavailable.
Multiple Provider Access to a Single Image - NORrad technology will allow two or more authorized providers to view the same image at the same time. This is not possible with conventional film. Multiple consultations in this way are expected to improve diagnostic accuracy and lead to improved diagnostic knowledge for the referring practitioner.
Access to Images Stored Off-Site - Electronic storage of images will virtually eliminate the costly and time-consuming problem of acquiring films held off site. Additionally, with access to the long-term image archive, authorized physicians will have immediate access to patient images and information completed at other sites, thereby, potentially speeding diagnosis and treatment and improving outcomes in situations where comparison with previous images is desired.
Access to Images From Home or Office - Authorized physicians will access patient images from a home or office personal computer via a web-server. Such technology has a potential for positively influencing patient care and improving quality of life issues for providers. Viewing an image from home and telephoning a report to the attending physician may speed diagnosis and treatment for patients who present at the facility during off-hours. Additionally, viewing images from the office will help physicians avoid delays in diagnosis or treatment in cases where previous or current conventional films are not immediately available for viewing.
All stakeholder expectations for PACS in the areas noted above are being realized. Family physicians and specialists praise the ability of PACS to provide ready access to current and previous images and to allow adjusting of image quality as needed to better diagnose and prescribe treatment. Subsequently, technologists are reporting a near elimination of retakes due to poor image quality.
Radiologists are identifying web-based access to images while outside of the hospital radiology department as a particular benefit and one which is key to the successful deployment and adoption of NORrad technology. Recent research by Swaton (2002) supports this finding. Radiologists who now have the option of reading and reporting studies from home express a feeling of improved quality of life - provided they are not overburdened with after-hours requests for consultations.
Receiving similar benefits are patients who no longer have to arrange special trips into the hospital to pick up films prior to medical appointments as outside clinics or in another town where the physician has local area network or web-enabled access to the required PACS images. In such cases, PACS technology could conceivably eliminate treatment delays in the occasional circumstance where images were not transported in timely fashion from the hospital to the site of the medical appointment or where patients themselves simply forgot to pick up the x-rays prior to the appointment.
Facilities are required by law to store films images of adult patients for a period of some years. For children, this period is extended to the age of majority and beyond. To accommodate this requirement, several sites have large rooms dedicated to film storage. These areas need to be maintained and constitute largely unproductive space. In some cases, larger facilities also have additional off-site storage locations.
To varying degrees, most evaluation sites are dealing with the issue of storing conventional radiology films. Some smaller sites are enduring restricted working spaces because of the need to store film in hallways and offices. To complicate matters, these same facilities may also be dealing with the challenge of managing current space requirements for modern, non-PACS, imaging equipment including processors and consoles.
The ability to store images electronically is expected to eventually have a tremendous impact on many facilities. As the storage time imposed by legislative requirements elapses, many conventional films will be purged from existing film libraries, thereby, freeing up substantial space for reallocation to more productive uses.
In contrast to the radiologists, some diagnostic imaging technologists report few productivity benefits from the PACS installation. These findings are contrary to current research on PACS and may be influenced by the following factors:
A large number of documents were created and are appended to the NORrad Final Report. These documents include policies that must be used in a digital radiology environment such as:
* See Appendix 1 for a review of the aforementioned documents.
Implementation of the NORrad Project is considered by evaluators to be very successful and a potential catalyst for shepherding a new era of actively adopting information and communications technologies to improve health outcomes. Evaluation stakeholders should be recognized and applauded for their vision and foresight in advancing this project under the CHIPP fund.
Diagnostic imaging technology across Northeastern Ontario is clearly on the cusp of a revolution. The production, storage and transmission of electronic x-ray images will open new possibilities for more efficient and effective patient care. Positive experiences to date show the following:
Overall, staff and physicians are excited and enthusiastic about the technology and clearly recognize its potential for improving health services delivery and patient outcomes in the immediate and long-term. Concerns expressed to date with the technology and training issues appear to be resolvable with time and additional resources and as such do not pose a serious threat to the viability of the technology.
Key Result Areas:
Recruiting and retaining physicians in communities across Northeastern Ontario has been a source of long-standing activity and concern for medical recruiters, health care administrators, community members and local governments. As part of the interview process during pre- and post-implementation evaluation activities, referring and consulting physicians were asked their opinions as to whether the NORrad technology would help attract and maintain physician resources in their respective communities.
Pre-Implementation Findings
For the most part, PACS technology is expected to have a positive influence on physician recruitment and retention in the NORrad evaluation sites. An ability to complete some work at home will improve quality of life issues for the radiologists in Timmins and Kirkland Lake and may serve to attract additional specialists to these areas. Additionally, improved access to specialists in larger areas, via the PACS technology, may encourage general practitioners to come to and remain in more rural areas of the NORrad region.
Post-Implementation Findings
Evaluation participants have mixed opinions about the ability of PACS to attract and keep medical personnel. On one hand, staff at a small NORrad site that makes regular use of locum diagnostic imaging technologists believe PACS will be an excellent recruiting tool for new staff. Similarly, the radiologist in Kirkland Lake feels the technology will be an excellent tool for attracting new radiologists to the area. In contrast, other family physicians and specialists feel that hospitals and communities in the Cochrane and James Bay Health Districts need more than PACS to attract and keep clinicians. Access to continuing medical education, financial incentives, spousal considerations and locum relief are a few factors that are likely to have a greater influence on attracting and keeping physicians in rural areas.
Literature on this topic is also mixed at this point. Several research studies have noted the potential for workload redistribution and rebalancing among radiologists as a key driver behind in some PACS installations (Keen, n.d.; Ratib et al, 2000). Access to images and reports, via a web-server, from locations outside of the radiology department; namely, in a office or home setting may dramatically impact the quality of life for specialists who traditionally travel some distance into their respective hospitals to provide required consultations at all hours of the day and in varying weather conditions.
Ultimately, evaluation participants agree that PACS technology is quickly becoming viewed by most medical school graduates as a standard clinical apparatus supporting efficient and accurate diagnosis and treatment. Hospitals and clinic sites without PACS technology will likely loose favour with this graduates and consequently remain in a cycle of chronic shortage. This belief is supported by Kainberger and Huber (2002) who suggest that the digital exchange of information will soon become a ubiquitous standard, and hospitals without digital imaging capabilities will likely lose credibility with clinical and technical personnel.
Health care managers and clinicians have long recognized that placing patient information on computer databases creates potential difficulties in protecting the security of private medical records and information. In a PACS environment servicing multiple users in locations both within and outside of a given institution, server systems must detect if requests coming from persons or client stations have authorization to receive the requested data, information or service. Given these complex system interactions, stakeholder confidence in the security and privacy of patient information is a key variable under consideration in this evaluation.
Pre-Implementation Findings
Evaluation participants generally had mixed opinions regarding the ability of PACS technology to ensure the privacy and security of patient information. Many noted that traditional film images are very often readily available from the film library. Physicians generally have open access to retrieve images from the library during off hours. As a result, conventional films are sometimes left in unsecured locations.
Conversely, electronically stored images will be held in one location and will only be accessible through user identifications and passwords. The technology, however, does allow for multiple points of access. Additionally, many interviewees suggested usernames and password may eventually be shared through a facility where staff work in a trusting environment. Such practices would open the door for potentially unauthorized access to images and reports. Electronic storage devices are also expected to monitor and track access to files by all system users - leaving electronic markers when images are accessed. Some interviewees acknowledge this security feature but argue that additional resources will be needed to regularly monitor who is access the PACS images.
Post-Implementation Findings
Evaluation stakeholders continue to have mixed feelings about the extent of privacy and security of patient information under PACS. Arguments can be made across many dimensions as follows:
Additionally, the benefits of having nursing staff trained in the operation of PACS technology is a matter of particular debate among several evaluation stakeholders.
Some suggest that the availability of trained nursing staff is essential in the off-hours to facilitate smoother imaging department operations - particularly when locum physicians are on duty and may not be familiar with the technology. Others suggest that training nursing staff is unnecessary and poses a security risk by increasing the number of persons with potential access to patient information via the PACS system. No consistent approach to this issue is evident.
The PACS Administrator is currently working with Diagnostic Imaging Managers from all NORrad sites to create or update privacy and security policies for the region. This work is necessary to ensure consistent approaches to these issues at all sights.
In the end, security of patient information will always rely greatly on the integrity of staff in the facility - this is the same under a conventional film or PACS environment.
* See Appendix 2 for NORrad privacy documents and policies.
NORrad is a fully functioning program in all of the nine hospitals in and adjoining the Cochrane District. The project is fully functioning without any major hitch for several months. The conversion from x-ray film to digital imaging has occurred in all areas planned in the conversion.
NORrad personnel have been active in providing support, advice and information to other northern hospitals and radiologists. To date, Kenora and Sudbury have adopted a strategy employing the same technology, albeit it on different scales.
In July 2003, NORrad lead a consortium of other northern Ontario hospitals to develop a submission to seek Ministry of Health support to approve Medical Equipment Funding 2 (MEF2) over the next three years to allow the expansion of the NORrad PACS program beyond Timmins and Cochrane District. The expansion proposal included hospitals in Network 6 (North Bay and area hospitals), Network 9 (Sault Ste. Marie and Algoma West hospitals), and Network 11 (Sudbury and area hospitals), and at key health care resources including the North Eastern Ontario Regional Cancer Centre and the new Northern Ontario Medical School. In addition, there would be regional infrastructure to support communication between each of the Network's and the regional hospital in Sudbury.
A key feature of the expansion would be the creation of a regional Master Patient Index for the purpose of developing an Electronic Health Record (EHR). Some important building block infrastructure for an Electronic Health Record is already in place with the existence of NORrad, NEON, and other regional collaborations for laboratory and other clinical services. The proposed expansion of NORrad would be the basis for not only creating a regional PACS capability but also developing the necessary infrastructure and network cooperation for an Electronic Health Record system.
Attached you will find a copy of the NORrad MEF2 NORrad Phase 2 Proposal. Implementation is beginning at the Sudbury Regional Hospital with the inclusion of a major investment in PACS using the same general technology solution.
Discussions have been initiated with the Regional Cancer Centre in Sudbury and the Department of Radiology at Sick Childrens' Hospital in Toronto in an effort to create a digital link between the NORrad hub site (Timmins) and these two important referral centres for northern Ontario patients. It is expected that there will be live connections which will provide sub-specialized care and decrease the amount of patient traveling year round.
| Methods or Tools | Date | Targeted Audience | Documents or Presentations Produced | Appendix Name/Number |
|---|---|---|---|---|
| Conference | ||||
| eHealth Conference | 05/25/03 | Hospital, government, consultants, healthcare workers | PowerPoint Presentation Dr. C. Vézina Mr. R. Foley |
Digital Imaging in Northeastern Ontario |
| Medical Imaging Clinics of Ontario PACS Seminar | 09/21/03 | Radiologists and technologists | Two PowerPoint Presentations Dr. C.Vézina Guy Guindon |
Removing Geography from the Quality of Care Equation What Everyone Needs to Know About PACS |
| Ontario Hospital Association Annual General Meeting | 04/11/03 | Hospital Ceos, senior management, technical staff | Mr. R. Foley | Modernized Service Delivery: The Northern Ontario PACS Experience |
* See Appendix 3 for copies of the PowerPoint presentations
The NORrad PACS Project was awarded the DIAMOND AWARD in the category of "Working Together," which the highest possible award at the Showcase Ontario Ceremony, which awards E-Government projects in Ontario.
The NORrad PACS Project was awarded the Bronze Medal in the category of"Innovative Cross-Jurisdictional E-Government Projects" at the GTEC Ceremony, which awards E-Government projects in Canada.
NORrad made a presentation at the 2003 Ontario Hospital Association's Annual General Meeting in Toronto. The presentation provided a review of the NORrad technology, the project implementation, and best practices that have resulted in the implementation of a PACS project in an underserviced area.
A visit is currently being organized in conjunction with the Ministry of Health and Canada Health Infoway to facilitate a review of the NORrad implementation and technology for the South Western Ontario (SWO) hospital consortium. Approximately thirty SWO hospitals recently received Infoway funding for a major regional PACS project. They are also interested in the multi-governance model developed for the NORrad project.