A Clinical Consensus Approach to Developing a New Funding Model for Radiation Services in Ontario.

In 2021, Ontario Health (Cancer Care Ontario) introduced a quality-based procedure model for the funding of radiation treatment (RT) in Ontario. This model ties reimbursement to patient care activities, ensuring equity and transparency in funding. Over 200 RT interprofessionals (oncologists, therapists and physicists) participated on 22 expert panels to establish or identify 288 evidence-based RT protocols and 672 quality expectations (QEs) to optimally deliver RT, which eventually led to the micro-costing of all protocols. Iterative review is required to ensure updated techniques and identify evolving standards of care, thereby providing the highest quality of RT care to Ontarians.

Delivery of Cancer Care in Ontario, Canada, During the First Year of the COVID-19 Pandemic.

Importance: The COVID-19 pandemic has impacted cancer systems worldwide. Quantifying the changes is critical to informing the delivery of care while the pandemic continues, as well as for system recovery and future pandemic planning. Objective: To quantify change in the delivery of cancer services across the continuum of care during the COVID-19 pandemic. Design, Setting, and Participants: This population-based cohort study assessed cancer screening, imaging, diagnostic, treatment, and psychosocial oncological care services delivered in pediatric and adult populations in Ontario, Canada (population 14.7 million), from April 1, 2019, to March 1, 2021. Data were analyzed from May 1 to July 31, 2021. Exposures: COVID-19 pandemic. Main Outcomes and Measures: Cancer service volumes from the first year of the COVID-19 pandemic, defined as April 1, 2020, to March 31, 2021, were compared with volumes during a prepandemic period of April 1, 2019, to March 31, 2020. Results: During the first year of the pandemic, there were a total of 4 476 693 cancer care services, compared with 5 644 105 services in the year prior, a difference of 20.7% fewer services of cancer care, representing a potential backlog of 1 167 412 cancer services. While there were less pronounced changes in systemic treatments, emergency and urgent imaging examinations (eg, 1.9% more parenteral systemic treatments) and surgical procedures (eg, 65% more urgent surgical procedures), major reductions were observed for most services beginning in March 2020. Compared with the year prior, during the first pandemic year, cancer screenings were reduced by 42.4% (-1 016 181 screening tests), cancer treatment surgical procedures by 14.1% (-8020 procedures), and radiation treatment visits by 21.0% (-141 629 visits). Biopsies to confirm cancer decreased by up to 41.2% and surgical cancer resections by up to 27.8% during the first pandemic wave. New consultation volumes also decreased, such as for systemic treatment (-8.2%) and radiation treatment (-9.3%). The use of virtual cancer care increased for systemic treatment and radiation treatment and psychosocial oncological care visits, increasing from 0% to 20% of total new or follow-up visits prior to the pandemic up to 78% of total visits in the first pandemic year. Conclusions and Relevance: In this population-based cohort study in Ontario, Canada, large reductions in cancer service volumes were observed. While most services recovered to prepandemic levels at the end of the first pandemic year, a substantial care deficit likely accrued. The anticipated downstream morbidity and mortality associated with this deficit underscore the urgent need to address the backlog and recover cancer care and warrant further study.

Relationships, body image, and intimacy: A pilot to increase sexual health conversations between radiation therapists and cancer patients in Ontario.

BACKGROUND: In 2016, a sexual health guideline recommended that the first step to addressing sexual health and dysfunction resulting from cancer and its treatment is for healthcare providers to initiate sexual health conversations with patients. To action this, a sexual health knowledge translation (KT) pilot was developed. METHODS: The Relationships, Body image, and Intimacy (RBI) pilot was implemented at four regional cancer centres (RCCs) from January 2018 to February 2020 which focused on medical radiation therapists (MRT(T)s) initiating conversations with radiation therapy patients. MRT(T)s were recruited to be RBI champion role models and were trained on RBI topics, trained fellow MRT(T)s, and modelled best practice for sexual health conversations with cancer patients. Pilot interventions were developed to address barriers to RBI conversations. Both qualitative and quantitative data collection activities were implemented to evaluate pilot interventions. RESULTS: Before the RBI pilot, over 80% of MRT(T)s reported they did not initiate RBI conversations with patients. By the end of the pilot, over 52% of MRT(T)s reported initiating RBI conversations with all or almost all patients. Feedback from patients was positive. Barriers to comfort level with RBI topic were successfully addressed with continued education and training throughout the pilot. DISCUSSION: Results show increased RBI conversations during the pilot, and MRT(T)s reported increased comfort speaking with patients about RBI with continued practice. The RBI champions played a pivotal role in the pilot's success and increased MRT(T) comfort with RBI. Initial barriers to RBI conversations were less reported as the pilot progressed and RBI conversations were normalized for patients. CONCLUSIONS: The RBI pilot was a novel KT initiative focused on supporting MRT(T)s to ensure patients were aware of sexual health resources available to them during their radiation therapy. Knowledge gained from this pilot can easily be adapted to assist other health care providers and additional RCCs to confidently initiate RBI conversations with their patients.

Ecological and Health Risk Assessments of an Abandoned Gold Mine (Remance, Panama): Complex Scenarios Need a Combination of Indices.

The derelict Remance gold mine is a possible source of pollution with potentially toxic elements (PTEs). In the study area, diverse mine waste has been left behind and exposed to weather conditions, and poses risks for soil, plants and water bodies, and also for the health of local inhabitants. This study sought to perform an ecological and health risk assessment of derelict gold mining areas with incomplete remediation, including: (i) characterizing the geochemical distribution of PTEs; (ii) assessing ecological risk by estimating the pollution load index (PLI) and potential ecological risk index (RI); (iii) assessing soil health by dehydrogenase activity; and iv) establishing non-carcinogenic (HI) and carcinogenic risks (CR) for local inhabitants. Soil health seems to depend on not only PTE concentrations, but also on organic matter (OM). Both indexes (PLI and RI) ranged from high to extreme near mining and waste accumulation sites. As indicated by both the HI and CR results, the mining area poses a health risk for local inhabitants and particularly for children. For this reason, it will be necessary to set up environmental management programs in the areas that are most affected (tailings and surrounding areas) and accordingly establish the best remediation strategies to minimize risks for the local population.

The Capital Investment Strategy for Radiation therapy in Ontario: A Framework to Ensure Access to Radiation Therapy.

PURPOSE: Ontario Health (Cancer Care Ontario), formerly known as CCO, is the provincial governmental agency in Ontario, Canada responsible for developing radiation therapy-specific capital investment strategies, updated every 5 years, to ensure equitable access and to gain the highest value from these investments in infrastructure. These plans are informed by the changing landscape of health care delivery, technologic advancements affecting radiation therapy care, patient desire for care closer to home, and expected increases in utilization of radiation therapy services. In this article, we describe the development, model, and final recommendations of CCO's fifth radiation therapy capital investment strategy. METHODS AND MATERIALS: A panel of multidisciplinary provincial experts, in combination with 2 patient and family advisors, developed planning principles to guide the development of a patient-centered strategy. Adaption of the previously used model for radiation therapy planning was used. RESULTS: The development of the capital investment strategy took place from fall 2017 to fall 2018. The model included 3 main factors: patient demand (including utilization targets), machine throughput, and machine demand and supply. The final recommendation is for an investment of 26 new radiation therapy machines in the province by 2028. CONCLUSIONS: The strategy plans for continued province-wide access to quality radiation therapy care and ensures machines are added to the system at the right place and in the right time. Ongoing data collection throughout this period is necessary to ensure the strategy achieves its goals and to allow for planning of future strategies.

A Cost-Utility Analysis of Magnetic Resonance (MR) Guided Brachytherapy Versus Two-Dimensional and Computed Tomography (CT) Guided Brachytherapy for Locally Advanced Cervical Cancer.

PURPOSE: The standard treatment for locally advanced cervical cancer is external beam radiation therapy and concurrent cisplatin followed by brachytherapy. Traditionally, 2-dimensional brachytherapy (2DBT) or computed tomography guided brachytherapy (CTgBT) has been used, but magnetic resonance guided brachytherapy (MRgBT) improves clinical outcomes and has become the new standard of care. This cost-utility analysis was undertaken to compare MRgBT to CTgBT and 2DBT. METHODS AND MATERIALS: A Markov model was constructed to evaluate the cost-utility from the perspective of the public health care payer in Ontario. Treatment effectiveness, expressed as quality-adjusted life years, and costs, expressed in 2016 Canadian dollars, were evaluated for MRgBT, CTgBT, and 2DBT. Results were reported as incremental cost-effectiveness ratios for all patients and separately for low and high-risk subgroups. Sensitivity analyses were performed to assess the impact of uncertainty in model parameters. RESULTS: MRgBT improved tumor control, reduced side effects, and was less costly compared with either CTgBT or 2DBT for all patients and in low- and high-risk prognostic subgroups separately. Sensitivity analysis supported the robustness of the findings and identified the cost of treating cancer recurrence to be the single most influential model parameter. CONCLUSIONS: MRgBT is more effective and less costly than CTgBT or 2DBT by avoiding downstream costs of treating cancer recurrence and managing side effects. These findings will assist health care providers and policymakers with future infrastructure and human resource planning to ensure optimal care of women with this disease.

Improving Quality of Radiation Therapy Care Across Ontario using a Community-of-Practice Approach.

PURPOSE: In 2003 and 2004, Cancer Care Ontario (CCO) divested its assets and staff to regional hospitals, leading to decreased contact between radiation therapy departments across Ontario's Regional Cancer Centres (RCCs). The Radiation Treatment Program (RTP) at CCO developed a communities-of-practice (CoPs) program to rebuild the provincial radiation therapy community to facilitate collaboration among centers, with the goals of decreasing variation in practice and improving the quality of patient care. RTP's CoPs are led and driven by volunteer frontline health care practitioners who identify and prioritize key quality issues and select corresponding projects to pursue. METHODS AND MATERIALS: An evaluation of RTP's CoPs was conducted to assess whether they were successful in knowledge creation, knowledge transfer and exchange, and community building. The framework was developed based on the Centers for Disease Control and Prevention CoP evaluation framework and tools. Data were collected using prospectively administered member surveys (257 surveys), publications, and semistructured interviews (18 participants). RESULTS: A total of 95% of participants reported that CoP projects were very relevant to their practice, and 50% reported changes in their practice stemming from CoP involvement. In addition, 90% of participants reported growth of their professional network as a result of CoPs. Overall, 93% of participants and 100% of interviewees reported that CoPs are a worthwhile initiative. The largest challenge of CoPs was the time commitment required to participate. CONCLUSIONS: This approach of member-driven CoPs should be explored and modeled in other health care settings as a means to develop and share knowledge to reduce variation in care and improve the quality of radiation therapy care.

Effect of Arrival of Prior Mammograms on Recall Negation for Screening Mammograms Performed With Digital Breast Tomosynthesis in a Clinical Setting.

PURPOSE: This retrospective study evaluates the effect of comparison with prior mammograms on recall negation for screening mammography performed with digital breast tomosynthesis (DBT) in a clinical setting and compares it with that performed without DBT. METHODS: This is an Institutional Review Board-approved, HIPAA-compliant retrospective review of the electronic medical record for all nonbaseline screening mammograms performed in clinical practice over 13 months. For each mammogram, we recorded if DBT were used, the BI-RADS assigned at initial interpretation, and whether prior mammograms were available at initial interpretation. If prior mammograms arrived later for comparison, the final BI-RADS assigned after comparison was recorded. A mammogram assigned a BI-RADS 0 at initial interpretation and assigned a BI-RADS 1 or BI-RADS 2 after prior mammograms arrived for comparison was labeled as a recall that was negated by the arrival of prior mammograms. The number of recalls negated for mammograms that used DBT was compared with that for mammograms that did not use DBT. RESULTS: Arrival of prior mammograms for comparison negated the need for recall for mammograms performed with DBT by 67.67% and negated the need for recall for mammograms performed without DBT by 55.80%. After adjusting for age, density, and time between mammograms, the percentage of recalls negated by comparison with prior mammograms was not significantly different for mammograms performed with DBT than it was for those performed without DBT. CONCLUSION: Comparison with prior mammograms remains important for the minimization of recall rates during the use of DBT for screening mammography in the clinical setting.

The Clinical Specialist Radiation Therapist (CSRT): A case study exploring the effectiveness of a new advanced practice role in Canada.

INTRODUCTION: The Clinical Specialist Radiation Therapist (CSRT), is a new advanced practice (AP) role for radiation therapists (RTTs). Following training, education and evaluation, the CSRT performs specific duties in autonomous ways, making advanced clinical decisions in their area of specialization. This case study examines the CSRT's impact on quantity (i.e., increasing capacity), improving quality and stimulating research and innovation. METHODS: Between 2007 and 2016, 23 CSRTs worked in 10 cancer centres in various AP position. A standardised metrics package, focusing on wait-times, patient volumes, patient throughput, time-savings, quality initiatives, satisfaction, research and innovation was developed and used to collect qualitative and quantitative data. Data were self-reported by the CSRTs but electronic databases, pre/post-studies, surveys and interviews were also used. RESULTS: Quantity projects (n = 76) related to patient volumes, wait-times, patient throughput and time-savings increased capacity and allowed more patients to enter the system. The presence of a CSRT allowed, on average, 13 additional patients (either new or re-treated) to be seen, at their respective cancer centre, per month. An average of 1.4 yearly quality improvement initiatives were led by each CSRT, which contributed to improvements in quality of care and satisfaction. CSRTs demonstrated a high level of involvement in research, innovation and knowledge translation activities, either as leaders or part of interprofessional teams. CONCLUSION: CSRTs positively impact quantity (capacity of the system), quality, research and innovation. Future efforts include permanent and sustainable team integration, practice standards, formal and comprehensive educational preparation, and approaches to consistent, valid assessment of AP in radiation therapy.

Do radiation oncology outreach clinics affect the use of radiotherapy?

BACKGROUND AND PURPOSE: The scope and effect of radiation oncology (RO) outreach activities within centralized radiotherapy (RT) systems is poorly defined. The purpose of this study was to describe the outreach activities of Ontario's regional cancer centres, and to explore the relationship between radiation oncology (RO) outreach clinics and rates of radiotherapy (RT) utilization at hospitals without RT on site (HWOS-RT). MATERIALS AND METHODS: Ontario RO centres' outreach activities were identified by semi-structured interview. A multivariate analysis determined the association between on-site RT facilities, or presence of RO clinic at HWOS-RT, and RT utilization within one year of diagnosis (RT1Y), for all patients diagnosed with cancer in Ontario in 2011-2012. RESULTS: RO outreach varied widely by region. Of the largest 58 diagnosing hospitals, 14 had RT on-site, 19 had no RT but RO outreach clinic(s) and 25 had no RT or RO clinic. RT was used more frequently for patients diagnosed at hospitals with on-site RT compared to those at HWOS-RT (RT1Y = 35% vs. 29%, RR = 1.32 [95% CI 1.27-1.38]). For HWOS-RT, RT was used more frequently if there was an RO clinic (RT1Y = 31% vs. 29%, RR = 1.06 [95% CI 1.02-1.10]). CONCLUSIONS: RO outreach clinics were associated with a small but significant increase in RT utilization. There is opportunity to improve access to RT by optimizing the effectiveness of RO outreach.

"I sleep better at night:" How peer review of radiation treatment plans indirectly improves quality of care across radiation treatment programs.

PURPOSE: Peer review of radiation oncology treatment plans is increasingly recognized as an important component of quality assurance in radiation treatment planning and delivery. Peer review of treatment plans can directly improve the quality of those plans and can also have indirect effects on radiation treatment programs. We undertook a systematic, qualitative approach to describing the indirect benefits of peer review, factors that were seen to facilitate or act as barriers to the implementation of peer review, and strategies to address these barriers across a provincial jurisdiction of radiation oncology programs (ROPs). METHODS AND MATERIALS: Semistructured qualitative interviews were held with radiation oncology department heads and radiation therapy managers (or delegates) in all 14 ROPs in Ontario, Canada. We used a theoretically guided phenomenological qualitative approach to design and analyze the interview content. Themes were recorded by 2 independent reviewers, and any discordance was resolved by consensus. RESULTS: A total of 28 interviews were completed with 32 interviewees. Twenty-two unique themes addressed perceived benefits of peer review, relating to either peer review structure (n = 3), process (n = 9), or outcome (n = 10). Of these 22 themes, 19 related to indirect benefits to ROPs. In addition, 18 themes related to factors that facilitated peer review activities and 30 themes related to key barriers to implementing peer review were identified. Findings were consistent with, and enhanced the understanding of, previous survey-based assessments of the benefits and challenges of implementing peer review programs. CONCLUSIONS: Although challenges and concerns regarding the implementation of peer review were evident, the indirect benefits to radiation programs are numerous, far outweigh the implementation challenges, and strongly complement the direct individual-patient benefits that result from peer review quality assurance of radiation treatment plans.

Directly Improving the Quality of Radiation Treatment Through Peer Review: A Cross-sectional Analysis of Cancer Centers Across a Provincial Cancer Program.

PURPOSE: To describe the outcomes of peer review across all 14 cancer centers in Ontario. METHODS AND MATERIALS: We identified all peer-reviewed, curative treatment plans delivered in Ontario within a 3-month study period from 2013 to 2014 using a provincial cancer treatment database and collected additional data on the peer-review outcomes. RESULTS: Considerable variation was found in the proportion of peer-reviewed plans across the centers (average 70.2%, range 40.8%-99.2%). During the study period, 5561 curative plans underwent peer review. Of those, 184 plans (3.3%) had changes recommended. Of the 184 plans, the changes were major (defined as requiring repeat planning or having a major effect on planning or clinical outcomes, or both) in 40.2% and minor in 47.8%. For the remaining 12.0%, data were missing. The proportions of recommended changes varied among disease sites (0.0%-7.0%). The disease sites with the most recommended changes to treatment plans after peer review and with the greatest potential for benefit were the esophagus (7.0%), uterus (6.7%), upper limb (6.3%), cervix and lower limb (both 6.0%), head and neck and bilateral lung (both 5.9%), right supraclavicular lymph nodes (5.7%), rectum (5.3%), and spine (5.0%). Although the heart is an organ at risk in left-sided breast treatment plans, the proportions of recommended changes did not significantly differ between the left breast treatment plans (3.0%, 95% confidence interval 2.0%-4.5%) and right breast treatment plans (2.4%, 95% confidence interval 1.5%-3.8%). The recommended changes were more frequently made when peer review occurred before radiation therapy (3.8%) than during treatment (1.4%-2.8%; P=.0048). The proportion of plans with recommended changes was not significantly associated with patient volume (P=.23), peer-review performance (P=.36), or center academic status (P=.75). CONCLUSIONS: Peer review of treatment plans directly affects the quality of care by identifying important clinical and planning changes. Provincial strategies are underway to optimize its conduct in radiation oncology.

Compliance With Screening Mammography Guidelines After a False-Positive Mammogram.

PURPOSE: To assess whether women with a false-positive mammogram who do return for screening are less likely to be compliant with screening mammography guidelines than are women with a negative mammogram. METHODS: This institutional review board-approved, HIPAA-compliant retrospective cohort study includes women >40 years old who received 9,385 consecutive, nonbaseline screening mammograms between December 1, 2012 and December 31, 2013. Using linear regression, we evaluated differences in time between mammograms by prior recall status, after adjusting for location of current mammogram (outpatient office versus mobile unit) and age. Using Fisher's exact test, we evaluated the association between compliance with screening guidelines and the recall status on prior mammogram, and compared by location the proportions of noncompliant women who were recalled from prior mammogram. RESULTS: Time between mammograms does not differ based on prior recall status (P = .83). There is no association between compliance with screening mammography guidelines and recall status on prior mammogram (ACR guidelines P = .398, United States Preventive Services Task Force guidelines P = .416). Noncompliant women recalled on prior mammogram are more likely to undergo mammography at the outpatient office rather than the mobile unit (ACR guidelines P = .0004, United States Preventive Services Task Force guidelines P = .0032). CONCLUSIONS: A prior false-positive mammogram is not a significant deterrent to compliance with screening guidelines in those women who return for screening.

Improving the Quality of Radiation Treatment for Patients in Ontario: Increasing Peer Review Activities on a Jurisdictional Level Using a Change Management Approach.

PURPOSE: Peer review of radiation treatment (RT) plans is a key component of quality assurance programs in radiation medicine. A 2011 current state assessment identified considerable variation in the percentage of RT plans peer reviewed across Ontario's 14 cancer centers.In response, Cancer Care Ontario launched an initiative to increase peer review of plans for patients receiving radical intent RT. METHODS: The initiative was designed consistent with the Kotter eight-step process for organizational transformation. A multidisciplinary team conducted site visits to promote and guide peer review and to develop education and implementation processes in collaboration with the centers. A centralized reporting infrastructure enabled the monitoring of the percentage of RT courses peer reviewed and the timing of peer review (before completion of 25%of treatment visits, after completion of >25%treatment visits). RESULTS: The initiative is ongoing, but early results indicate that the proportion of radical intent RT courses peer reviewed province wide increased from 43.5% (April 2013) to 68.0%(March 2015). This proportion is now a quality metric in Ontario and is publicly reported through the Cancer System Quality Index. The performance target for this metric was initially set at 50%(cases treated with radical intent) and revised to 60% in 2014. Provincial performance exceeded targets in both years (58.2% and 68.2%, respectively). Considerable variation was observed, however, in rates and timing of peer review among Cancer Care Ontario centers. CONCLUSION: This initiative demonstrates that a change management framework can be useful for planning and achieving substantial increases in jurisdictional peer review activities.

IMRT utilization in Ontario: qualitative deployment evaluation.

PURPOSE: The purpose of this paper is to describe a jurisdiction-wide implementation and evaluation of intensity-modulated radiation therapy (IMRT) in Ontario, Canada, highlighting innovative strategies and lessons learned. DESIGN/METHODOLOGY/APPROACH: To obtain an accurate provincial representation, six cancer centres were chosen (based on their IMRT utilization, geography, population, academic affiliation and size) for an in-depth evaluation. At each cancer centre semi-structured, key informant interviews were conducted with senior administrators. An electronic survey, consisting of 40 questions, was also developed and distributed to all cancer centres in Ontario. FINDINGS: In total, 21 respondents participated in the interviews and a total of 266 electronic surveys were returned. Funding allocation, guidelines and utilization targets, expert coaching and educational activities were identified as effective implementation strategies. The implementation allowed for hands-on training, an exchange of knowledge and expertise and the sharing of responsibility. Future implementation initiatives could be improved by creating stronger avenues for clear, continuing and comprehensive communication at all stages to increase awareness, garner support and encourage participation and encouraging expert-based coaching. IMRT utilization for has increased without affecting wait times or safety (from fiscal year 2008/2009 to 2012/2013 absolute increased change: prostate 46, thyroid 36, head and neck 29, sarcoma 30, and CNS 32 per cent). ORIGINALITY/VALUE: This multifaceted, jurisdiction-wide approach has been successful in implementing guideline recommended IMRT into standard practice. The expert based coaching initiative, in particular presents a novel training approach for those who are implementing complex techniques. This paper will be of interest to those exploring ways to fund, implement and sustain complex and evolving technologies.

Cost-effectiveness analysis comparing conventional versus stereotactic body radiotherapy for surgically ineligible stage I non-small-cell lung cancer.

INTRODUCTION: In 25% to 35% of patients with early stage I non-small-cell lung cancer (NSCLC), surgery is not feasible, and external-beam radiation becomes their standard treatment. Conventionally fractionated radiotherapy (CFRT) is the traditional radiation treatment standard; however, stereotactic body radiotherapy (SBRT) is increasingly being adopted as an alternate radiation treatment. Our objective was to conduct a cost-effectiveness analysis, comparing SBRT with CFRT for stage I NSCLC in a public payer system. METHODS: Consecutive patients were reviewed using 2010 Canadian dollars for direct medical costs from a public payer perspective. A subset of direct radiation treatment delivery costs, excluding physician billings and hospitalization, was also included. Health outcomes as life-years gained (LYGs) were computed using time-to-event methods. Sensitivity analyses identified critical factors influencing costs and benefits. RESULTS: From January 2002 to June 2010, 168 patients (CFRT, n = 50; SBRT, n = 118) were included; median follow-up was 24 months. Mean overall survival was 2.83 years (95% CI, 1.8 to 4.1) for CFRT and 3.86 years (95% CI, 3.2 to not reached) for SBRT (P = .06). Mean costs for CFRT were $6,886 overall and $5,989 for radiation treatment delivery only versus $8,042 and $6,962, respectively, for SBRT. Incremental costs (incremental cost-effectiveness ratio [ICER]) per LYG for SBRT versus CFRT were $1,120 for the public payer and $942 for radiation treatment alone. Varying survival and labor costs individually (± 20%) created the largest changes in the ICER, and simultaneous adjustment (± 5% to ± 30%) confirmed cost effectiveness of SBRT. CONCLUSION: Using a threshold of $50,000 per LYG, SBRT seems cost effective. Results require confirmation with randomized data.

A survey of radiation treatment planning peer-review activities in a provincial radiation oncology programme: current practice and future directions.

OBJECTIVES: To describe current patterns of practice of radiation oncology peer review within a provincial cancer system, identifying barriers and facilitators to its use with the ultimate aim of process improvement. DESIGN: A survey of radiation oncology programmes at provincial cancer centres. SETTING: All cancer centres within the province of Ontario, Canada (n=14). These are community-based outpatient facilities overseen by Cancer Care Ontario, the provincial cancer agency. PARTICIPANTS: A delegate from each radiation oncology programme filled out a single survey based on input from their multidisciplinary team. OUTCOME MEASURES: Rated importance of peer review; current utilisation; format of the peer-review process; organisation and timing; case attributes; outcomes of the peer-review process and perceived barriers and facilitators to expanding peer-review processes. RESULTS: 14 (100%) centres responded. All rated the importance of peer review as at least 8/10 (10=extremely important). Detection of medical error and improvement of planning processes were the highest rated perceived benefits of peer review (each median 9/10). Six centres (43%) reviewed at least 50% of curative cases; four of these centres (29%) conducted peer review in more than 80% of cases treated with curative intent. Fewer than 20% of cases treated with palliative intent were reviewed in most centres. Five centres (36%) reported usually conducting peer review prior to the initiation of treatment. Five centres (36%) recorded the outcomes of peer review on the medical record. Thirteen centres (93%) planned to expand peer-review activities; a critical mass of radiation oncologists was the most important limiting factor (median 6/10). CONCLUSIONS: Radiation oncology peer-review practices can vary even within a cancer system with provincial oversight. The application of guidelines and standards for peer-review processes, and monitoring of implementation and outcomes, will require effective knowledge translation activities.

Use of continuous infusion pumps during radiation treatment.

INTRODUCTION: Despite increasing chemoradiotherapy treatment, there is a paucity of information regarding the effects of radiation exposure on ambulatory infusion pumps used to deliver chemotherapy or other essential medications. The aim of this overview is to present the available evidence on this subject, heighten awareness within the clinical community, provide considerations for minimizing possible negative effects on patient care, and encourage the monitoring of infusion devices after exposure to radiation or electromagnetic interference. METHODS: Published literature was systematically searched using MEDLINE and EMBASE; gray literature was searched using Google and an environmental scan of relevant Web sites. A multidisciplinary working group reviewed the compiled evidence, and a draft of the document was sent to health professionals from various disciplines for an external review. RESULTS: Four reports and three manufacturer device alerts were identified that suggest a risk of pump malfunction as a result of radiation exposure. The estimated cumulative dose at which pump failure has been reported ranges from 28.5 to 42 Gy; however, additional clinical investigations should be undertaken. Pump relocation, pump shielding, and assessment of the pump after radiation exposure are most commonly suggested to minimize pump malfunction related to radiation exposure. A list of additional considerations is offered for those developing institution specific policies and procedures based on the available evidence and expert consensus. CONCLUSION: The varied and unpredictable results of radiation exposure on infusion devices suggest that additional testing should be carried out to determine the limits of dose exposure and to raise awareness around this patient safety issue.

Total quality culture in radiotherapy departments across Ontario.

PURPOSE: To investigate the prevalence of total quality culture (TQC) within radiation therapy (RT) departments across Ontario, Canada. METHODS: A prospective quantitative survey was distributed within RT departments across Ontario, Canada using the Miller Consulting Group Quality Culture survey. FINDINGS: Ninety percent of managers (9/10) and 50% of employees (261/519) participated. There was concordance between managers and staff that overall RT departments exhibit a work culture that somewhat resembles TQC. Both groups scored 55% of the categories as somewhat agree with TQC and 9% of categories as no TQC. There was discordance in views for 36% of the categories, where managers scored a higher prevalence of TQC compared to their therapists. Larger RT departments (>50 employees) had more prevalence of discrepancy between group scores. CONCLUSIONS: This is the first study to report on the prevalence of TQC within RT departments. Strategies designed for on-going continuous improvement will benefit staff, RT managers, continuity of patient care and patient safety within RT departments.

Palliative radiation for vertebral metastases: the effect of variation in prescription parameters on the dose received at depth.

PURPOSE: To assess the effect of prescription parameters on the dose received by the spine during palliative radiotherapy. MATERIALS AND METHODS: In a survey, members of the Canadian Association of Radiation Oncologists were asked to define their prescription parameters for vertebral metastases. The depth of the spinal canal and vertebral body at 8 spinal levels was measured in 20 magnetic resonance imaging studies (MRIs). Survey results were applied to the measurements to assess the dose received at depth. The depth of spinal structures assessed at simulation and by diagnostic imaging was compared. RESULTS: Prescriptions were most commonly to D(max) 3 cm or 5 cm using 60Co-6MV photons delivering 8-30 Gy in 1-10 fractions. Mean depths from MRI were: posterior spinal canal, 5.5 cm; anterior spinal canal, 6.9 cm; and anterior vertebral body, 9.6 cm. Application of the prescription parameters from the survey to these measurements showed a wide range in the dose at depth with variation in technique. Depths measured at simulation correlated well with diagnostic imaging. CONCLUSION: The spinal canal and vertebral body lie >5 cm beneath the skin, and the dose received varies by up to 50% with changes in prescription depth. We suggest a suitable prescription point for vertebral metastases and a method for determining this at simulation.