Journal of Medical Imaging and Radiation Sciences最新文献

Purpose

To construct a tumor motion monitoring model for stereotactic body radiation therapy (SBRT) of lung cancer from a feasibility perspective.

Methods

A total of 32 treatment plans for 22 patients were collected, whose planning CT and the centroid position of the planning target volume (PTV) were used as the reference. Images of different respiratory phases in 4DCT were acquired to redefine the targets and obtain the floating PTV centroid positions. In accordance with the planning CT and CBCT registration parameters, data augmentation was accomplished, yielding 2130 experimental recordings for analysis. We employed a stacking multi-learning ensemble approach to fit the 3D point cloud variations of body surface and the change of target position to construct the tumor motion monitoring model, and the prediction accuracy was assess using root mean squared error (RMSE) and R-Square (R²).

Results

The prediction displacement of the stacking ensemble model shows a high degree of agreement with the reference value in each direction. In the first layer of model, the X direction (RMSE =0.019 ∼ 0.145mm, R² =0.9793∼0.9996) and the Z direction (RMSE = 0.051 ∼ 0.168 mm, R² = 0.9736∼0.9976) show the best results, while the Y direction ranked behind (RMSE = 0.088 ∼ 0.224 mm, R² = 0.9553∼ 0.9933). The second layer model summarizes the advantages of unit models of first layer, and RMSE of 0.015 mm, 0.083 mm, 0.041 mm, and R² of 0.9998, 0.9931, 0.9984 respectively for X, Y, Z were obtained.

Conclusions

The tumor motion monitoring method for SBRT of lung cancer has potential application of non-ionization, non-invasive, markerless, and real-time.

Introduction/Background

Patients receiving treatment for head and neck cancer (HNC) with curative intent, will potentially undergo primary or adjuvant radiation therapy (RT). These patients require supportive management from an extended multi-disciplinary team, to manage the severe toxicities and distress that a course of treatment can bring.

A survey was designed to determine if there were changes in the experience of HNC patients attending for radical RT, from the beginning to the end of their treatment course. During the conduct of the survey the COVID-19 pandemic began. As a result cancer services were adapted to keep patients receiving treatment protected from the virus, while continuing to treat their malignant disease. This enabled a comparison of HNC patient experiences pre-pandemic (PP) and during the pandemic (DP).

The study aimed to assess the impact of changes in treatment logistics, implemented as a result of the COVID-19 pandemic, on the patient experience, analysing and comparing how well patients understood the information provided to them, their level of distress and anxiety during treatment, and their overall satisfaction with the experience.

Methods

Eligible patients were receiving radical RT for HNC of any sub-site or histological type.

Identical, anonymous surveys were distributed to patients at week 1 and the final week of RT. The initial PP questionnaire (distributed December 2019 to 11^th March 2020) contained 22 questions with space for free text. The questionnaire was amended DP to include 6 additional COVID-19 related questions (distributed June to November 2020).

Results

One hundred and eighty two surveys were returned; 95 (52%) PP and 87 (48%) DP. Patients were moderately distressed from wearing the immobilisation mask towards the end of treatment DP with a statistically significant difference in the final week, median (IQR) values of 1 (0-4) PP and 2 (1-6) DP, p=0.024.

Patients reported increased distress by attending daily for treatment by the final week of RT DP, with a PP and DP median of 1 (0-3) and 2 (1-4) respectively, p=0.039. Patients reporting increased levels of distress about attending for RT also reported high levels of anxiety about COVID-19 (r=0.40, p=0.005). COVID-19 anxiety score displayed a weak inverse association with overall treatment satisfaction score (r=-0.28, p=0.008).

Conclusion

Despite the adapted COVID-19 working practices implemented and the challenges a course of head and neck RT entails, patients reported a positive experience attending for treatment, both PP and DP.

Introduction

Patient participation in undergraduate education has been proven to contribute to student skills development complementing their didactic training. An increasing number of educational programs have implemented systematic patient engagement in curriculum to comply with the requirements of professional and regulatory bodies and to ensure greater focus on patient care. This scoping review aims to identify and summarize literature on the integration of patients and associated benefits in undergraduate allied health education programs.

Methods

This scoping review was conducted using a comprehensive literature search of the electronic databases MEDLINE, EMBASE and CINAHL. The study was carried out and reported using the Preferred Reporting Items for Systematic Reviews and MetaAnalyses (PRISMA) guidance for Systematic reviews and Meta Analyses. Inclusion criteria included English language and allied health education. Exclusion criteria were outside the date range of 2011 to 2023, non-allied health programs, and clinical exposure during didactic courses. Literature reviews and commentaries were also excluded.

Results

A total of nineteen studies were included in the scoping review. The majority of these papers examined undergraduate programs that engaged patients in curriculum delivery while a few involved patients in feedback delivery and formal assessment. Other forms of patient involvement were through curriculum co-design. Across institutions, evidence suggested the benefits of patient involvement to students, patients, and educational programs for improved delivery of person-centred care.

Conclusion

Patient involvement in curriculum delivery and student assessment provided valuable teaching and learning experiences for students and patients. Patient engagement also ensured that person-centered care principles were integrated into education programs. Summary of findings are provided to better prepare patients and facilitators for their role and to enhance the benefits to all participants.

Introduction

There were many policy and procedure (P&P) changes implemented in health care facilities to combat the spread of the coronavirus disease 2019 (COVID-19). Common changes included an increase in personal protective equipment usage, room occupancy limits, limitations in visitors/family members and the absence of volunteers. This study evaluated the current views and opinions of Radiation Therapists (RTs) in British Columbia relating to how COVID-19 P&P changes have impacted their clinical practice. The goal was to identify gaps in the areas of RT practice, allow for self-reflection among RTs and potentially guide future P&Ps with patient-centred care at the forefront.

Methods

A 24-item cross-sectional questionnaire was created and sent via e-mail to all RTs working across the province. Key sections explored in the questionnaire were: 1) patient care delivery, 2) staff-work environment, and 3) work satisfaction. Descriptive analysis was performed on the questionnaire responses.

Results

Of the approximate 300 invited participants, 107 responses were received from all areas of Radiation Therapy (Treatment units, CT simulation, Dosimetry, etc.) and from all cancer centres in the province. RT staff indicated that COVID-19 P&P negatively impacted patient care, including the ability to verbally and non-verbally communicate with patients (82 %), assess for side effects (85 %), and build rapport (62 %). A majority (79 %) of RT staff felt that communication with co-workers had been negatively impacted as well. When queried regarding the impact on staff environment, 51 % of RT staff agreed that the absence of volunteers increased their workload and the responses were polarized (46 % disagree, 35 % agree) when asked if RT staff have enough time for cleaning their clinical areas with new COVID-19 P&Ps in place. 78 % of RTs were aware of where to go with COVID-19 safety concerns and thought they received adequate education concerning COVID P&Ps. When asked to rank the factors that most impacted RT practice, RTs identified increased PPE usage (83 %), absence of volunteers (74 %), and room occupancy limits (70 %) as the leading P&P changes that negatively impacted their practice; while plexiglass barriers (39 %), re-arranged workspaces (37 %) and working remotely (12 %) were the least negatively impactful.

Conclusion

The majority of RTs across BC Cancer responding to the questionnaire indicated that their ability to provide patient care and their staff-work environment were negatively impacted by implemented COVID-19 P&Ps. Views regarding COVID-19 P&P training/education was positive, yet there was no consensus regarding whether the changes were implemented smoothly. This study can facilitate reflection among both clinical leadership and RTs on how P&Ps can be implemented in the future and can encourage further retrospective