Teleradiology. Part II. Limitations, risks, and opportunities

Teleradiology in Saudi Arabia: a national survey and retrospective review of associated MRI reports

BACKGROUND

Due to the recent evolution of telecommunications, it is now acknowledged that digital communication provides essential services for remote areas. Teleradiology allows the ability to obtain images at one site, send them over a distance, and view them remotely for diagnostic or consultation purposes.

AIM

The highlighted objectives include (a) the added value of the service, (b) user satisfaction, and (c) quality assurance according to global best practices and national quality standards.

METHODS

This study utilised an eight-part online self-report survey distributed among employees of the Ministry of Health (MOH) who use the national teleradiology platform. The survey sections were designed to gather comprehensive data, including participant demographics, levels of satisfaction with the service, awareness of security measures, communication effectiveness, perceived advantages and disadvantages, quality assurance, technical challenges, IT support, and future perceptions of teleradiology services. Additionally, a total of 212 MRI reports from patients who underwent brain and spine MRI examinations between 2018 and 2020 were collected from the platform to strengthen the analysis.

RESULTS

Most survey respondents (78%) were males, with a significant majority (96.2%) affirming that teleradiology sufficiently addresses clinical inquiries. Furthermore, 90% expressed satisfaction with the service, and 93% endorsed the standardization of MR imaging procedures across Ministry of Health (MOH) hospitals. Notably, 92.4% recognised teleradiology as a transformative strategy for healthcare facilities in Saudi Arabia, concurring with its benefits. The analysis of the MRI reports revealed structural inconsistencies; compared with structured templates, the average number of incorporated elements was reduced, and essential elements were frequently absent. Intriguingly, reports delineating normal cases included a higher incidence of clinical impressions relative to those describing abnormalities, yet the latter contained a more comprehensive array of elements. Variability in report composition was correlated with the years of experience of the reporters. Teleradiology users perceived enhancements in the quality of radiological reporting and the daily operational workflow. Nonetheless, certain limitations were identified, necessitating focused improvements by service providers.

CONCLUSION

Despite teleradiology being a subspecialisation, it can reduce the role of local radiologists. Further research is needed on data security, confidentiality, and archiving options, as well as the cost-effectiveness of teleradiology services.

Teleradiology and the Compensation Conundrum in India

Teleradiology, an established telemedicine practice globally, has significantly enhanced the accessibility of high-quality radiological interpretations in remote areas worldwide, especially in India, thereby improving healthcare outcomes. The utilization of teleradiology services has seen a marked increase, expanding its reach into more distant regions of the country. However, this burgeoning field faces numerous regulatory, financial, and technical challenges. The current scenario regarding teleradiology in India is a double-edged sword. There is an increasing demand for it due to the expanding population, resulting in larger imaging volumes needing radiologist services. This editorial aims to examine the prevailing challenges in teleradiology in India, with an emphasis on the compensation model for teleradiologists, which has not kept pace with the growing demand for services and often remains inequitable.

Teleradiology: good practice guide

Teleradiology is the electronic transmission of radiological images from one location to another with the main purpose of interpreting or consulting a diagnosis and must be subject to codes of conduct agreed upon by professional societies. The content of fourteen teleradiology best practice guidelines is analyzed. Their guiding principles are: the best interest and benefit of the patient, quality and safety standards homologous to the local radiology service, and use as a complement and support of the same. As legal obligations: guaranteeing rights by applying the principle of the patient's country of origin, establishing requirements in international teleradiology and civil liability insurance. Regarding the radiological process: integration with the local service process, guaranteeing the quality of images and reports, access to previous studies and reports and complying with the principles of radioprotection. Regarding professional requirements: compliance with the required registrations, licenses and qualifications, training and qualification of the radiologist and technician, prevention of fraudulent practices, respect for labor standards and remuneration of the radiologist. Subcontracting must be justified, managing the risk of commoditization. Compliance with the system's technical standards.

Teleradiology in India during the COVID-19 pandemic: Merits, pitfalls and a Future Perspective

The field of teleradiology has been of interest for almost 55 years and its potential prospects for health care have been constantly assessed and investigated. In view of the global preventive measures, such as social distancing and hand hygiene, the ongoing COVID-19 pandemic has further accentuated the necessity of telemedicine and teleradiology. In a country as densely populated as India wherein radiologists are often fragmented, teleradiology can prove to be a lifesaving technology and aid dampen the repercussions stemming from the highly skewed doctor to patient ratio. Although innovative, the effective adoption of teleradiology faces several obstacles in India such as inadequate technological infrastructure, a lack of knowledge among most medical practitioners, urban-rural disparities, and a lack of financing. Similar challenges continue to also be faced by several other developing countries across the globe. This article therefore aims to elaborate on the most important facets of implementation of teleradiology observed in the Indian context to help provide salient pointers to the readership of relevant jurisdictions who may be embracing comparable teleradiology challenges. Despite the hurdles, the future of teleradiology seems promising. The respective governments, policymakers and all relevant stakeholders must continue to take decisive action to ensure that this potential is fully exploited by allocation of necessary funds, strengthening of Information Technology and its related units, involvement of human resources with adequate technical and administrative expertise as well as take continued action to better existing telemedicine and teleradiology services.

The Artificial Intelligence in Digital Radiology: Part 2: Towards an Investigation of acceptance and consensus on the Insiders

Background. The study deals with the introduction of the artificial intelligence in digital radiology. There is a growing interest in this area of scientific research in acceptance and consensus studies involving both insiders and the public, based on surveys focused mainly on single professionals. Purpose. The goal of the study is to perform a contemporary investigation on the acceptance and the consensus of the three key professional figures approaching in this field of application: (1) Medical specialists in image diagnostics: the medical specialists (MS)s; (2) experts in physical imaging processes: the medical physicists (MP)s; (3) AI designers: specialists of applied sciences (SAS)s. Methods. Participants (MSs = 92: 48 males/44 females, averaged age 37.9; MPs = 91: 43 males/48 females, averaged age 36.1; SAS = 90: 47 males/43 females, averaged age 37.3) were properly recruited based on specific training. An electronic survey was designed and submitted to the participants with a wide range questions starting from the training and background up to the different applications of the AI and the environment of application. Results. The results show that generally, the three professionals show (a) a high degree of encouraging agreement on the introduction of AI both in imaging and in non-imaging applications using both standalone applications and/or mHealth/eHealth, and (b) a different consent on AI use depending on the training background. Conclusions. The study highlights the usefulness of focusing on both the three key professionals and the usefulness of the investigation schemes facing a wide range of issues. The study also suggests the importance of different methods of administration to improve the adhesion and the need to continue these investigations both with federated and specific initiatives.

Obstacles and Solutions Driving the Development of a National Teleradiology Network

Background: Teleradiology has the potential to link medical experts and specialties despite geographical separation. In a project report about hospital-based teleradiology, the significance of technical and human factors during the implementation and growth of a teleradiology network are explored. Evaluation: The article identifies major obstacles during the implementation and growth of the teleradiology network of the Berlin Trauma Hospital (BG Unfallkrankenhaus Berlin) between 2004 and 2020 in semi-structured interviews with senior staff members. Quantitative analysis of examination numbers, patient numbers, and profits relates the efforts of the staff members to the monetary benefits and success of the network. Identification of qualitative and quantitative factors for success: Soft and hard facilitators and solutions driving the development of the national teleradiology network are identified. Obstacles were often solved by technical innovations, but the time span between required personal efforts, endurance, and flexibility of local and external team members. The article describes innovations driven by teleradiology and hints at the impact of teleradiology on modern medical care by relating the expansion of the teleradiology network to patient transfers and profits. Conclusion: In addition to technical improvements, interpersonal collaborations were key to the success of the teleradiology network of the Berlin Trauma Hospital and remained a unique feature and selling point of this teleradiology network.

The Accuracy of On-Call CT Reporting in Teleradiology Networks in Comparison to In-House Reporting

(1) Background: We aimed to compare the accuracy of after-hours CT reports created in a traditional in-house setting versus a teleradiology setting by assessing the discrepancy rates between preliminary and final reports. (2) Methods: We conducted a prospective study to determine the number and severity of discrepancies between preliminary and final reports for 7761 consecutive after-hours CT scans collected over a 21-month period. CT exams were performed during on-call hours and were proofread by an attending the next day. Discrepancies between preliminary and gold-standard reports were evaluated by two senior attending radiologists, and differences in rates were assessed for statistical significance. (3) Results: A total of 7209 reports were included in the analysis. Discrepancies occurred in 1215/7209 cases (17%). Among these, 433/7209 reports (6%) showed clinically important differences between the preliminary and final reports. A total of 335/5509 of them were in-house reports (6.1%), and 98/1700 were teleradiology reports (5.8%). The relative frequencies of report changes were not significantly higher in teleradiology. (4) Conclusions: The accuracy of teleradiology reports was not inferior to that of in-house reports, with very similar clinically important differences rates found in both reporting situations.

Emerging Challenges and Opportunities in the Evolution of Teleradiology

OBJECTIVE. In recent decades, teleradiology has expanded considerably, and many radiology practices now engage in intraorganizational or extraorganizational teleradiology. In this era of patient primacy, optimizing patient care and care delivery is paramount. This article provides an update on recent changes, current challenges, and future opportunities centered around the ability of teleradiology to improve temporal and geographic imaging access. We review licensing and regulations and discuss teleradiology in providing services to rural areas and assisting with disaster response, including the response to the coronavirus disease (COVID-19) pandemic. CONCLUSION. Teleradiology can help increase imaging efficiency and mitigate both geographic and temporal discrepancies in imaging care. Technologic limitations and regulatory hurdles hinder the optimal practice of teleradiology, and future attention to these issues may help ensure broader patient access to high-quality imaging across the United States.

The Current State of Teleradiology Across the United States: A National Survey of Radiologists' Habits, Attitudes, and Perceptions on Teleradiology Practice

PURPOSE

To explore the current state of teleradiology practice, defined as the interpretation of imaging examinations at a different facility from where the examination was performed.

METHODS

A national survey addressing radiologists' habits, attitudes, and perceptions regarding teleradiology was distributed by e-mail to a random sample of ACR members in early 2019.

RESULTS

Among 731 of 936 respondents who indicated a non-teleradiologist primary work setting, 85.6% reported performing teleradiology within the past 10 years and 25.4% reported that teleradiology represents a majority of their annual imaging volumes; 84.4% performed teleradiology for internal examinations and 45.7% for external examinations; 46.2% performed teleradiology for rural areas and 37.2% for critical access hospitals; 91.3% performed teleradiology during weekday normal business hours and 44.5% to 79.6% over evening, overnight, and weekend hours. In all, 76.9% to 86.2% perceived value from teleradiology for geographic, after-hours, and multispecialty coverage, as well as reduced interpretation turnaround times. The most common challenges for teleradiology were electronic health record access (62.8%), quality assurance (53.8%), and technologist proximity (48.4%). The strategy most commonly considered useful for improving teleradiology was technical interpretation standards (33.3%). Radiologists in smaller practices were less likely to perform teleradiology or performed teleradiology for lower fractions of work, were less likely to experience coverage advantages of teleradiology, and reported larger implementation challenges, particularly relating to electronic health records and prior examination access.

CONCLUSION

Despite historic concerns, teleradiology is widespread throughout modern radiology practice, helping practices achieve geographic, after-hours, and multispecialty coverage; reducing turnaround times; and expanding underserved access. Nonetheless, quality assurance of offsite examinations remains necessary. IT integration solutions could help smaller practices achieve teleradiology's benefits.

Multidisciplinary Tumor Boards: An Opportunity for Radiologists to Demonstrate Value

In response to healthcare reform, a necessary evolution of radiology has shifted from generating volume to demonstrating value. Multidisciplinary tumor boards provide a critical opportunity for radiologists to demonstrate their value to their clinical colleagues, their patients, administrations, and society.

The Empirical Foundations of Teleradiology and Related Applications: A Review of the Evidence

INTRODUCTION

Radiology was founded on a technological discovery by Wilhelm Roentgen in 1895. Teleradiology also had its roots in technology dating back to 1947 with the successful transmission of radiographic images through telephone lines. Diagnostic radiology has become the eye of medicine in terms of diagnosing and treating injury and disease. This article documents the empirical foundations of teleradiology.

METHODS

A selective review of the credible literature during the past decade (2005-2015) was conducted, using robust research design and adequate sample size as criteria for inclusion.

FINDINGS

The evidence regarding feasibility of teleradiology and related information technology applications has been well documented for several decades. The majority of studies focused on intermediate outcomes, as indicated by comparability between teleradiology and conventional radiology. A consistent trend of concordance between the two modalities was observed in terms of diagnostic accuracy and reliability. Additional benefits include reductions in patient transfer, rehospitalization, and length of stay.

Radiochemistry, PET Imaging, and the Internet of Chemical Things

The Internet of Chemical Things (IoCT), a growing network of computers, mobile devices, online resources, software suites, laboratory equipment, synthesis apparatus, analytical devices, and a host of other machines, all interconnected to users, manufacturers, and others through the infrastructure of the Internet, is changing how we do chemistry. While in its infancy across many chemistry laboratories and departments, it became apparent when considering our own work synthesizing radiopharmaceuticals for positron emission tomography (PET) that a more mature incarnation of the IoCT already exists. How does the IoCT impact our lives today, and what does it hold for the smart (radio)chemical laboratories of the future?

Anatomy of an Extensible Open Source PACS

The conception and deployment of cost effective Picture Archiving and Communication Systems (PACS) is a concern for small to medium medical imaging facilities, research environments, and developing countries' healthcare institutions. Financial constraints and the specificity of these scenarios contribute to a low adoption rate of PACS in those environments. Furthermore, with the advent of ubiquitous computing and new initiatives to improve healthcare information technologies and data sharing, such as IHE and XDS-i, a PACS must adapt quickly to changes. This paper describes Dicoogle, a software framework that enables developers and researchers to quickly prototype and deploy new functionality taking advantage of the embedded Digital Imaging and Communications in Medicine (DICOM) services. This full-fledged implementation of a PACS archive is very amenable to extension due to its plugin-based architecture and out-of-the-box functionality, which enables the exploration of large DICOM datasets and associated metadata. These characteristics make the proposed solution very interesting for prototyping, experimentation, and bridging functionality with deployed applications. Besides being an advanced mechanism for data discovery and retrieval based on DICOM object indexing, it enables the detection of inconsistencies in an institution's data and processes. Several use cases have benefited from this approach such as radiation dosage monitoring, Content-Based Image Retrieval (CBIR), and the use of the framework as support for classes targeting software engineering for clinical contexts.

Benefits of integration of radiology services across a pediatric health care system with locations in multiple states

BACKGROUND

Integration was implemented of previously independently practicing pediatric radiology services across a pediatric health care system with sites 1,000 miles apart.

OBJECTIVE

The purpose of this manuscript is to describe the process utilized to integrate imaging services across our enterprise and to study the direct effects on report turnaround time and other parameters.

MATERIALS AND METHODS

Parameters were evaluated both the year before integration as well as the 2 years following integration and compared for improvement. Parameters studied included report turnaround time, academic productivity (as measured by peer review publications per year), and degree of sub-subspecialization within pediatric radiology (as measured by the percentage of neuroimaging CT and MRI studies read by pediatric neuroradiologists).

RESULTS

Comparing pre- to post-integration measures, the median report turnaround time decreased from 2.3 h to 1.1 h (52.1% improvement), the percentage of neuroimaging studies read by neuroimaging faculty increased from 15.0% to 86.6% (477% improvement), and peer review publication by calendar year increased from 3 to 30 (1,000% improvement). Other benefits included increased hours of in-house coverage and execution on multiple quality improvement efforts.

CONCLUSION

A pediatric health care system successfully integrated radiology services across multiple previously non-integrated locations into one functional group. This integration was associated with a positive effect on multiple parameters.

Towards social radiology as an information infrastructure: reconciling the local with the global

The current widespread use of medical images and imaging procedures in clinical practice and patient diagnosis has brought about an increase in the demand for sharing medical imaging studies among health professionals in an easy and effective manner. This article reveals the existence of a polarization between the local and global demands for radiology practice. While there are no major barriers for sharing such studies, when access is made from a (local) picture archive and communication system (PACS) within the domain of a healthcare organization, there are a number of impediments for sharing studies among health professionals on a global scale. Social radiology as an information infrastructure involves the notion of a shared infrastructure as a public good, affording a social space where people, organizations and technical components may spontaneously form associations in order to share clinical information linked to patient care and radiology practice. This article shows however, that such polarization establishes a tension between local and global demands, which hinders the emergence of social radiology as an information infrastructure. Based on an analysis of the social space for radiology practice, the present article has observed that this tension persists due to the inertia of a locally installed base in radiology departments, for which common teleradiology models are not truly capable of reorganizing as a global social space for radiology practice. Reconciling the local with the global signifies integrating PACS and teleradiology into an evolving, secure, heterogeneous, shared, open information infrastructure where the conceptual boundaries between (local) PACS and (global) teleradiology are transparent, signaling the emergence of social radiology as an information infrastructure.

The past, present, and future of telemedicine for Parkinson's disease

Travel distance, growing disability, and uneven distribution of doctors limit access to care for most Parkinson's disease (PD) patients worldwide. Telemedicine, the use of telecommunications technology to deliver care at a distance, can help overcome these barriers. In this report, we describe the past, present, and likely future applications of telemedicine to PD. Historically, telemedicine has relied on expensive equipment to connect single patients to a specialist in pilot programs in wealthy nations. As the cost of video conferencing has plummeted, these efforts have expanded in scale and scope, now reaching larger parts of the world and extending the focus from care to training of remote providers. Policy, especially limited reimbursement, currently hinders the growth and adoption of these new care models. As these policies change and technology advances and spreads, the following will likely develop: integrated care networks that connect patients to a wide range of providers; education programs that support patients and health care providers; and new research applications that include remote monitoring and remote visits. Together, these developments will enable more individuals with PD to connect to care, increase access to expertise for patients and providers, and allow more-extensive, less-expensive participation in research.

University-Based Teleradiology in the United States

This article reviews the University of Arizona's more than 15 years of experience with teleradiology and provides an overview of university-based teleradiology practice in the United States (U.S.). In the U.S., teleradiology is a major economic enterprise with many private for-profit companies offering national teleradiology services (i.e., professional interpretation of radiologic studies of all types by American Board of Radiology certified radiologists). The initial thrust for teleradiology was for after-hours coverage of radiologic studies, but teleradiology has expanded its venue to include routine full-time or partial coverage for small hospitals, clinics, specialty medical practices, and urgent care centers. It also provides subspecialty radiologic coverage not available at smaller medical centers and clinics. Many U.S. university-based academic departments of radiology provide teleradiology services usually as an additional for-profit business to supplement departmental income. Since academic-based teleradiology providers have to compete in a very demanding marketplace, their success is not guaranteed. They must provide timely, high-quality professional services for a competitive price. Academic practices have the advantage of house officers and fellows who can help with the coverage, and they have excellent subspecialty expertise. The marketplace is constantly shifting, and university-based teleradiology practices have to be nimble and adjust to ever-changing situations.

Factors in the selection of a teleradiology provider in the United States

Commercial teleradiology is well established in the US. There are many factors to consider when engaging a teleradiology provider. One of the basic questions is what do you expect to gain from it? Do you want a final reading from an attending radiologist (known as a consultant radiologist in many countries) or would you be satisfied with a preliminary reading from a teleradiology provider and a final reading from your own in-house radiologist the following day? Do you simply require after-hours coverage or do you need to supplement the coverage provided by your own internal radiologists during normal working hours? Teleradiology is not without its drawbacks. It can add additional costs, particularly for after-hours coverage. Teleradiology rarely provides in-house coverage for procedures, and the interpreting radiologist may sometimes be difficult to contact for consultation. Choosing a teleradiology vendor requires due diligence. When the contracting entity defines its expectations well and chooses its teleradiology vendor with care, the end result will be satisfactory for all concerned, including the patients.

Image and diagnosis quality of X-ray image transmission via cell phone camera: a project study evaluating quality and reliability

Introduction

Developments in telemedicine have not produced any relevant benefits for orthopedics and trauma surgery to date. For the present project study, several parameters were examined during assessment of x-ray images, which had been photographed and transmitted via cell phone.

Materials and Methods

A total of 100 x-ray images of various body regions were photographed with a Nokia cell phone and transmitted via email or MMS. Next, the transmitted photographs were reviewed on a laptop computer by five medical specialists and assessed regarding quality and diagnosis.

Results

Due to their poor quality, the transmitted MMS images could not be evaluated and this path of transmission was therefore excluded. Mean size of transmitted x-ray email images was 394 kB (range: 265–590 kB, SD ±59), average transmission time was 3.29 min ±8 (CI 95%: 1.7–4.9). Applying a score from 1–10 (very poor - excellent), mean image quality was 5.8. In 83.2±4% (mean value ± SD) of cases (median 82; 80–89%), there was agreement between final diagnosis and assessment by the five medical experts who had received the images. However, there was a markedly low concurrence ratio in the thoracic area and in pediatric injuries.

Discussion

While the rate of accurate diagnosis and indication for surgery was high with a concurrence ratio of 83%, considerable differences existed between the assessed regions, with lowest values for thoracic images. Teleradiology is a cost-effective, rapid method which can be applied wherever wireless cell phone reception is available. In our opinion, this method is in principle suitable for clinical use, enabling the physician on duty to agree on appropriate measures with colleagues located elsewhere via x-ray image transmission on a cell phone.

Remote sonographic interpretation: comparison of standardized video clips to still images

OBJECTIVE

The aim of our study was to evaluate the role of standardized video clips compared with still images in the diagnostic accuracy of remote sonographic interpretation.

METHODS

We compared the remote interpretation of sonographic examinations acquired with a standardized video clip approach to examinations performed with still images alone in 60 patients with various hepatic and extrahepatic pathologies.

RESULTS

The use of video clips improved the diagnostic accuracy of sonographic studies interpreted remotely compared with the use of still images (p < 0.0001). The sensitivity, specificity, and positive and negative predictive values increased from 47.3% to 68.3%, 81.8% to 87.8%, 71.5% to 81%, and 63.8% to 74.5%, respectively.

CONCLUSIONS

Standardized video clips are easy to obtain, less operator-dependent than still images, and can be transferred to remote sites without loss of important data. We recommend this method in remote interpretation (teleradiology and distant consultation) of sonographic examinations.

Medical imaging data reconciliation, part 1: innovation opportunity

The concept of data reconciliation has been well described in the industrial and pharmaceutical literature and is designed to ensure the integrity, reliability, and accuracy of sequential data in a multistep process. This concept can similarly be applied to the delivery of medical imaging services, which begins with order entry and ends with reporting and communication. The ultimate goal of medical imaging data reconciliation is to ensure continuity of care, extending across multiple service providers and imaging and information system technologies. The longitudinal analysis of standardized data across the imaging continuum presents an opportunity to improve communication between service providers, education and training, workflow, and clinical outcomes. In addition, the derived data can in turn be used to create data-driven best-practice guidelines and computerized decision support tools.

Telemedicine and pediatric radiology: a new environment for training, learning, and interactive discussions

OBJECTIVE

To report the experience of the Brazilian Program of Pediatric Teleradiology in combining teleconferencing and a virtual learning environment for services integration, collaborative research, and continuing education in pediatric radiology.

MATERIALS AND METHODS

We performed virtual meetings from March 2005 to October 2010 on pediatric radiology-related themes, using a combination of videoconferences and Web conferences, which were recorded and made available in an open-source software (Moodle) for reuse.

RESULTS

We performed 58 virtual sessions: 29 anatomical-clinical-radiological sessions, 28 on upgrading themes, and 1 virtual symposium. The average of connected points was 12 by videoconference and 39 by Web conference, and of 450 participants per event. At the time of this writing, 318 physicians and students are registered in the virtual learning environment, with a total of 14,678 accesses.

CONCLUSIONS

Telemedicine is being included in pediatric radiology practice, as a means for distance education, training, and continuing integration between groups.

Outsourcing to teleradiology companies: bad for radiology, bad for radiologists

Outsourcing night and weekend call to teleradiology companies has become a common practice among private radiology groups. While this may lead to an easier lifestyle, the authors discuss the serious negative consequences for radiologists and the specialty as a whole. These include the likelihood of commoditization of the field, lowering of fees, displacement from hospital contracts and outpatient reading contracts, greater encroachment by other specialties, and lowering of quality.

Rising use of CT in child visits to the emergency department in the United States, 1995-2008

PURPOSE

To describe nationwide trends and factors associated with the use of computed tomography (CT) in children visiting emergency departments (EDs) in the United States between 1995 and 2008.

MATERIALS AND METHODS

This study was exempt from institutional review board oversight. Data from the 1995-2008 National Hospital Ambulatory Medical Care Survey were used to evaluate the number and percentage of visits associated with CT for patients younger than 18 years. A mean of 7375 visits were sampled each year. Data were subcategorized according to multiple patient and hospital characteristics. The Rao-Scott χ(2) test was performed to determine whether CT use was similar across subpopulations.

RESULTS

From 1995 to 2008, the number of pediatric ED visits that included CT examination increased from 0.33 to 1.65 million, a fivefold increase, with a compound annual growth rate of 13.2%. The percentage of visits associated with CT increased from 1.2% to 5.9%, a 4.8-fold increase, with a compound annual growth rate of 12.8%. The number of visits associated with CT at pediatric-focused and non-pediatric-focused EDs increased from 14,895 and 316,133, respectively, in 1995 to 212,716 and 1,438,413, respectively, in 2008. By the end of the study period, top chief complaints among those undergoing CT included head injury, abdominal pain, and headache.

CONCLUSION

Use of CT in children who visit the ED has increased substantially and occurs primarily at non-pediatric-focused facilities. This underscores the need for special attention to this vulnerable population to ensure that imaging is appropriately ordered, performed, and interpreted.

Teleradiology: evolution and concepts

Teleradiology has become a reality for several years now, but its existence still has not been freed from all controversies. From the beginning the military has been the driving force for teleradiology. Today teleradiology has many purposes worldwide ranging from services for expert or second opinions to international commercial diagnostic reading services. Ten years ago image quality, transmission speed and image compression were important issues of debate. Today the focus is on clinical governance, medico-legal issues and quality assessment. The increasing use of teleradiology reflects the changing world of clinical practice, service delivery and technology.

Telepathology for patient care: what am I getting myself into?

The vast advancements in telecommunications and converting medical information to a digital format have increased the number of applications within telemedicine. Telepathology, in simplest terms, is the practice of formally rendering a pathologic diagnosis based upon examination of an image rather than of a glass slide through traditional microscopy. The use of telepathology for clinical patient care has so far been limited to relatively few large academic institutions. Although a number of challenges remain, there is increasing demand for the use of information technology in pathology as a whole owing to the expansion of health care networks and the opportunity to enhance the quality of service delivered to patients. The software used to acquire, display, and manage digital images for clinical patient care may be subject to national and federal regulations just as is any other electronic information system. Despite the barriers, telepathology systems possess the capability to help manage pathology cases on a global scale, improve laboratory workload distribution, increase standardization of practice and enable new classes of ancillary studies to facilitate diagnosis and education even in the most remote parts of the earth.

What factors affect the productivity and efficiency of physician practices?

BACKGROUND

Increasing the productivity and efficiency of physician practices could help relieve the rapid growth of US healthcare costs and the expected physician shortage. Radiology practices are an attractive specific focus for research on practices' productivity and efficiency because they are home to many purportedly productivity-enhancing operational technologies. This affords an opportunity to study the effect of production technology on physicians' output. As well, radiology is a leader in the general movement of physicians out of very small practices. And imaging is by the fastest-growing category of physician expenditure.

RESEARCH DESIGN

Using data from 2003 to 2007 surveys of radiologists, we estimate a stochastic frontier model to study the effects of practice characteristics, such as work hours, practice size, and output mix, and technologies used in work production, on practices' productivity and efficiency.

RESULTS

At the mean, the elasticities of output with respect to practice size and annual hours worked per full-time physician were 0.73 and 0.51, respectively. Some production technologies increase productivity by 15% to 20%; others generate no increase. Using "nighthawks"--ie, contracting out after-hours work to external firms that consolidate workflow--significantly increases practice efficiency.

CONCLUSIONS

The general US trend toward larger practice size is unlikely to relieve cost or physician shortage pressures. The actual effect of purportedly productivity-enhancing operational technologies needs to be carefully evaluated before they are widely adopted. As the recently-developed innovations of nighthawks and hospitalists show, practices should give more attention to a possible choice to "buy," rather than "make," part of their output.

Radiology practices' use of external off-hours teleradiology services in 2007 and changes since 2003

OBJECTIVE

Our objective is to report patterns of utilization of external off-hours teleradiology services (EOTSs) in 2007 and changes since 2003.

MATERIALS AND METHODS

We analyzed non-individually identified data from the American College of Radiology's 2007 Survey of Member Radiologists and its 2003 Survey of Radiologists. Responses were weighted to be nationally representative of individual radiologists and radiology practices. We present descriptive statistics and multivariable regression analysis results on the use of EOTSs in 2007 and comparisons with 2003.

RESULTS

Overall, 44% of all radiology practices in the United States reported using EOTSs in 2007. These practices included 45% of all U.S. radiologists. Out-of-practice teleradiology had been used by 15% of practices in 2003. Regression analysis indicates that, other practice characteristics being equal, in 2007, primarily academic practices had lower odds of using EOTSs than private radiology practices. Also, large practices (>or= 30 radiologists) had lower odds of using EOTSs than practices with 15-29 radiologists. Small practices (1-10 radiologists) had high odds, but nonmetropolitan practices did not. There were no significant differences by geographic region of the United States.

CONCLUSION

Use of EOTSs was widespread by 2007, and it had been increasing rapidly in the preceding few years. Patterns of use were generally as might be expected except that nonmetropolitan practices did not have high odds of using EOTSs.

From shared data to sharing workflow: merging PACS and teleradiology

Due to a host of technological, interface, operational and workflow limitations, teleradiology and PACS/RIS were historically developed as separate systems serving different purposes. PACS/RIS handled local radiology storage and workflow management while teleradiology addressed remote access to images. Today advanced PACS/RIS support complete site radiology workflow for attending physicians, whether on-site or remote. In parallel, teleradiology has emerged into a service of providing remote, off-hours, coverage for emergency radiology and to a lesser extent subspecialty reading to subscribing sites and radiology groups. When attending radiologists use teleradiology for remote access to a site, they may share all relevant patient data and participate in the site's workflow like their on-site peers. The operation gets cumbersome and time consuming when these radiologists serve multi-sites, each requiring a different remote access, or when the sites do not employ the same PACS/RIS/Reporting Systems and do not share the same ownership. The least efficient operation is of teleradiology companies engaged in reading for multiple facilities. As these services typically employ non-local radiologists, they are allowed to share some of the available patient data necessary to provide an emergency report but, by enlarge, they do not share the workflow of the sites they serve. Radiology stakeholders usually prefer to have their own radiologists perform all radiology tasks including interpretation of off-hour examinations. It is possible with current technology to create a system that combines the benefits of local radiology services to multiple sites with the advantages offered by adding subspecialty and off-hours emergency services through teleradiology. Such a system increases efficiency for the radiology groups by enabling all users, regardless of location, to work "local" and fully participate in the workflow of every site. We refer to such a system as SuperPACS.

[E-health in emergency medicine - the research project Med-on-@ix]

There is a need for new strategies to face current and future problems in German Emergency Medical Services (EMS). Lack of quality management and increasing costs in the presence of a deficit of EMS physicians are typical challenges, resulting in an increasing deficit in medical care. In addition, information and communication technology used in German EMS is out of date. The physician-powered EMS has to be modernized to increase quality and show measurable evidence of its effectiveness. Otherwise its future existence is at serious risk. Therefore, the project Med-on-@ix was created by the Department of Anaesthesiology at the University Hospital Aachen, Germany. The aim was to develop a new emergency telemedicine service system and to implement it clinically in order to advance medical care and effectiveness in the EMS by process optimization of each scene call. This system offers EMS physicians and paramedics an additional consultation by a specialised centre of competence, thus assuring medical therapy according to evidence-based guidelines. Several prospective studies are conducted to analyse this system in comparison to the conventional EMS.

Advancing radiology through informed leadership: summary of the proceedings of the Seventh Biannual Symposium of the International Society for Strategic Studies in Radiology (IS(3)R), 23-25 August 2007

The International Society for Strategic Studies in Radiology (IS³R) brings together thought leaders from academia and industry from around the world to share ideas, points of view and new knowledge. This article summarizes the main concepts presented at the 2007 IS³R symposium, providing a window onto trends shaping the future of radiology. Topics addressed include new opportunities and challenges in the field of interventional radiology; emerging techniques for evaluating and improving quality and safety in radiology; and factors impeding progress in molecular imaging and nanotechnology and possible ways to overcome them. Regulatory hurdles to technical innovation and drug development are also discussed more broadly, along with proposals for addressing regulators’ concerns and streamlining the regulatory process.

The impact of globalisation on teleradiology practice

Some advocates of globalisation argue that a free market with little regulation is the best approach for achieving cost-effective healthcare. Healthcare, however, is different from other business activities in that it is typically less profit-driven; instead, it often involves the goal of providing equitable care to the underprivileged. Traditionally, the government has subsidised the expenses of delivering affordable healthcare to underserved communities. Because of the many recent advances in telecommunications technology, telemedicine has gained increasing attention. Teleradiology, in particular, is by far the maturest of all telemedicine disciplines and, thus, it may serve as a pivotal indicator of whether telemedicine on a global scale is feasible or not. In this paper, a prediction of the future landscape of globalised teleradiology operations is attempted based on the extrapolation of the historical trends in teleradiology practice as well as the growing pressure on federal and local governments to reduce their regulatory power under the General Agreement on Trade in Services (GATS).

Enhancing CT productivity: strategies for increasing capacity

OBJECTIVE

This article will identify strategies and tactics that can be used to enhance CT capacity. The potential financial benefits to the organization and the impact on market share will be discussed.

CONCLUSION

Many organizations are challenged to meet stakeholder demands of providing additional CT capacity and reduction of patient waiting lists. However, much can be achieved through workflow redesign, the addition of key personnel, and implementation of information system platforms and databases.