Medical Physics Research Articles

RADIOTHERAPY 3D ISODOSEZONES GRAPHICAL OPTIMIZATION FOR HYPERFRACTIONATED TREATMENT PLANNING DOSIMETRY IN LUNG AND HEAD-NECK TUMORS WITH BIOLOGICAL EFFECTIVE DOSE MODEL

In recent lung and prostate cancer-radiotherapy contributions, [101-5], 3D imaging-processing Isodosezones [ Casesnoves, 2022 ], delimited by 3D Isodoselines were explained in lung cancer and other tumor types, such as prostate or lung. The radiotherapy model applied was the classical BED one algorithm. Modern biological-model-based Treatment Planning Optimization can get objective improvements by using Isodosezones/lines when selecting the optimal dose delivery/schedule for any personalized treatment. Improved programming, from [ Casesnoves, May 7th, 2024 ], and engineered software is perfectioned-developed for numerical hyperfractionated 3D TPO lung and head-neck cancer imaging-processing with upgraded previous database. Mathematical algorithms are explained-detailed. Developed programming patters and arrays are briefed. A series of imaging-processing graphics results obtained with the 3D Isodosezones Pareto-Multiobjective Optimization programming database are shown and explained in detailed. Applications in radiotherapy-oncology medical physics are subsequently briefed.

Friedrich Dessauer (1881-1963): the forgotten medical physicist, politician, and philosopher.

Today, the name Friedrich Dessauer is almost forgotten; however, his scientific, social, and political works should not be. Dessauer's professional career began at ayoung age as aprofessor of physics in Frankfurt am Main. It is said that he published 400 papers and 65book chapters and pamphlets. He was atechnical inventor who established laws that dealt with theories to explain the limited understanding of the effects of radiation on cells. He advocated for methods to improve the therapeutic ratio. As adevout Catholic politician, Dessauer was an early opponent of National Socialism. This led to him being thrown into prison for political reasons in 1933. He did not leave until 1934, and then for Istanbul, largely thanks to Turkish efforts and his appointment as director of alarge new institution. While he was already awell-known physicist in Germany, he had to start from scratch in order to build amodern institute. Arecent article in the journal Radiotherapy and Oncology celebrated his important contributions to radiology from Turkey. After his contract in Istanbul expired in 1937, he left for the small University of Fribourg in Switzerland, where he was unfortunately unable to continue his scientific productivity. Dessauer wrote textbooks as well as political and philosophical books, and attempted to bridge the gap between Catholicism and science. Additionally, after the war, he began to teach again in Frankfurt. In photos of Dessauer, radiation-induced skin changes on his face and hands were clearly visible. Towards the end of his life, he received many medals and honors for his achievements in Germany, some of them posthumously.

Rhizophora-based particleboard bonded with soy flour and lignin as potential phantom

Rhizophora-based particleboard was evaluated for its suitability as phantom material, especially in medical physics applications. The elemental composition, effective atomic number, micrographic structures, computed tomography (CT), and attenuation properties of Rhizophora-based particleboards were examined. These investigations considered three different particle sizes and three distinct adhesive mixtures. Rhizophora sample at particle sizes of 0 to 103 µm, with 4.5% soy flour and 1.5% lignin (C6) presented with a homogenous compound with better uniformity compared with other samples, and Rhizophora sample at particle sizes of 104 to 210 µm, with 9% soy flour and 3% lignin (B12) demonstrated an effective atomic number of 8.15, which is similar to water. C6 also presented with a density distribution profile with close proximity to water. The measured attenuation coefficients of samples were aligned closely with those of water, as determined by XCOM. The results suggest that the formulation of soy flour and lignin as adhesives for Rhizophora-based particleboard is suitable for the fabricating of phantom material for medical physics applications, especially mainly due to its natural origin.

Binary classification of dead detector elements in flat panel detectors using convolutional neural networks.

Objective.Medical physicists routinely perform quality assurance on digital detection systems, part of which involves the testing of flat panel detectors. Flat panels may degrade over time as an increasing number of individual detector elements begin to malfunction. The pixels that correspond to these elements are corrected for using information elsewhere in the detector system, however these corrected elements still constitute a loss in image quality for the system as a whole. These correction methods, as well as the location and number of dead detector elements, are often only available to the vendor of the digital detection system, but not to the medical physicist responsible for the quality assurance of the system.Approach.We greatly expand upon a previous work by providing a novel technique for classifying dead detector elements at single pixel resolution. We also demonstrate that this technique can be trained on one detector, and then tested and validated on another with moderate success, which demonstrates some ability to generalize to different detectors. The technique requires 3 flat field, or 'noise', images to be taken to predict the dead detector element maps for the system.Main results.Models using only for-processing pixel data were unable to successfully generalize from one detector to the other. Models preprocessed using the standard deviation across three for-processing images were able to classify dead detector element maps with an F1score ranging from 0.4527 to 0.8107 and recall ranging from 0.5420 to 0.9303 with better performance, on average, observed using the low exposure data set.Significance. Many physicists do not have access to the dead detector maps for their diagnostic digital radiography systems. CNNs are capable of predicting the dead detector maps of flat panel detectors with single pixel resolution. Physicists can implement this tool by acquiring three flat field images and then inputting them into the model. Model performance saw a marginal increase when trained on the low exposure set data, as opposed to the high exposure set data, indicating high exposure, low relative noise images may not be necessary for optimal performance. Model performance across detectors manufactured by different vendors requires further investigation.

First Five Years Performance of FDG PET-CT in Institute of Nuclear Medical Physics, SavarAbstract to be submitted Bangladesh J. Nuclear Med. 27(1): page, 2024

First Five Years Performance of FDG PET-CT in Institute of Nuclear Medical Physics, SavarAbstract to be submitted Bangladesh J. Nuclear Med. 27(1): page, 2024

Biological-equivalent-dose-based integrated optimization framework for fast-energy-switching Bragg peak FLASH-RT using single-beam-per-fraction.

When comparing the delivery of all beams per fraction (ABPF) to single beam per fraction (SBPF), it is observed that SBPF not only helps meet the FLASH dose threshold but also mitigates the uncertainty with beam switching in the FLASH effect. However, SBPF might lead to a higher biological equivalent dose in 2Gy (EQD2) for normal tissues. This study aims to develop an EQD2-based integrated optimization framework (EQD2-IOF), encompassing robust dose, delivery efficiency, and beam orientation optimization (BOO) for Bragg peak FLASH plans using the SBPF treatment schedule. The EQD2-IOF aims to enhance both dose sparing and the FLASH effect. A superconducting gantry was employed for fast energy switching within 27ms, while universal range shifters were utilized to improve beam current in the implementation of FLASH plans with five Bragg peak beams. To enhance dose delivery efficiency while maintaining plan quality, a simultaneous dose and spot map optimization (SDSMO) algorithm for single field optimization was incorporated into a Bayesian optimization-based auto-planning algorithm. Subsequently, a BOO algorithm based on Tabu search was developed to select beam angle combinations (BACs) for 10 lung cases. To simultaneously consider dose sparing and FLASH effect, a quantitative model based on dose-dependent dose modification factor (DMF) was used to calculate FLASH-enhanced dose distribution. The EQD2-IOF plan was compared to the plan optimized without SDSMO using BAC selected by a medical physicist (Manual plan) in the SBPF treatment schedule. Meanwhile, the mean EQD2 in the normal tissue was evaluated for the EQD2-IOF plan in both SBPF and ABPF treatment schedules. No significant difference was found in D2% and D98% of the target between EQD2-IOF plans and Manual Plans. When using a minimum DMF of 0.67 and a dose threshold of 4Gy, EQD2-IOF plans showed a significant reduction in FLASH-enhanced EQD2mean of the ipsilateral lung and normal tissue by 10.5% and 11.5%, respectively, compared to Manual plans. For normal tissues that received a dose greater than 70% of the prescription dose, using a minimum DMF of 0.7 for FLASH sparing compensated for the increase in EQD2mean resulting from replacing ABPF with SBPF schedules. The EQD2-IOF can automatically optimize SBPF FLASH-RT plans to achieve optimal sparing of normal tissues. With an energy switching time of 27ms, the loss of fractionate repairing using SBPF schedules in high-dose regions can be compensated for by the FLASH effect. However, when an energy switching time of 500ms is utilized, the SBPF schedule needs careful consideration, as the FLASH effect diminishes with longer irradiation time.

Nanoparticles Prepared by Spray Pyrolysis Technology for UV Detector Improvement: Study Bacterial Activity with Medical Physics

Nanoparticles Prepared by Spray Pyrolysis Technology for UV Detector Improvement: Study Bacterial Activity with Medical Physics

H-BN layered material: A new frontier in radiation dosimetry

This study explores the potential of hexagonal boron nitride (h-BN) nanostructures for dosimetry of diverse ionizing radiation. We focus on the crucial thermoluminescence (TL) properties of h-BN, including glow curve, dose-response, reproducibility, sensitivity, and fading, within the conventional framework of TL dosimetry. The h-BN powder samples were exposed to different ionizing radiations, including 60Co gamma-rays with a mean energy of 1.25 MeV, electrons (6 MeV), and photons (6 MV), at levels of dose familiar in radiotherapy ranging from 2 Gy to 15 Gy. The h-BN's effective atomic number of 6.25, similar to human tissue, opens up exciting possibilities for applications in medical imaging and dosimetry. Notably, h-BN demonstrates a linear response within the dose range of interest, showcasing excellent sensitivity, particularly at low doses and low photon energies. Additionally, h-BN samples exhibit remarkable reproducibility, with a standard deviation of less than 2.4%, albeit accompanied by significant fading. Regarding the trapping parameters underpinning the manifestation of the glow curves of the irradiated samples, use was made of the peak shape method with different models to estimate the order of kinetics (b), activation energy (E), and frequency factor (s) or escape probability and trap lifetime (τ). The data suggest that the TL glow peaks of the h-BN obey general-order kinetics. These findings underscore the transformative potential of h-BN layered material in advancing radiation dosimetry, particularly in medical physics fields. The inherent characteristics of h-BN, coupled with its effective atomic number, excellent linearity over a wide range of radiation doses especially for electron irradiation and better reproducibility, positioned it as a suitable tool for precise and reliable dose measurement in medical imaging and therapy, heralding a new frontier in radiation dosimetry.

Concept Inventory Development for Medical Physics Education

Concept Inventory Development for Medical Physics Education

Aspects of Throughput Rate and Scientific Output in Doctoral Education: Changes over Time at the Departmental Level

Doctoral education has been shaped by a continuous interaction between the research community and representatives of the governmental authorities. In Sweden, doctorates were organised into structured educational programmes in 1969. In this study, the development of doctoral education in Medical Radiation Physics at Lund University, Sweden, was analysed over approximately 50 years, in terms of quantitative parameters related to throughput rate and scientific production making up the doctoral theses. Theses from two time periods (1970 to 1999 versus 2001 to 2023) were compared in terms of the total number of full papers (either accepted or in manuscript form), number of accepted full papers and number of accepted full papers as first author. For all three categories of included papers, median values were not significantly different between the two time periods while the variances were significantly smaller for the period 2001 to 2023 (level of significance 0.05). The time between admission and thesis defence decreased with time, according to linear correlation analysis, while the number of supervisors increased. Doctoral theses showed a significantly more uniform composition after a major political reform in 1998. Hence, doctoral education can be described as becoming more efficient and predictable. It is suggested that the primary causes include the introduction of individual study plans and secured personal financial support. The increased efficiency can also be problematised regarding, for example, insufficient independence and limited freedom of research.

Autofinding egg parasitoids in moth eggs by using machine learning methods in synchrotron-coherent X-ray imaging

The use of a non-destructive technique, such as the propagation-based X-ray phase contrast radiography (PBR) can be an innovative method for automatic parasitism analysis, especially if it presents standard structures. Herein, an artificial intelligence (AI) model is applied in order to establish a computer vision of egg parasitoids in PBRs of parasitized moth eggs acquired at the Synchrotron Radiation for Medical Physics (SYRMEP) beamline at ELETTRA. PBRs of eggs parasitized in four different stages of parasitism (0 days, 3 days, 5 days and 7 days) have been tested. The AI model performance was evaluated by using different metrics. Average Precision (AP), which measures the accuracy of object detection, was found to be 0.866 and 0.741 for the moth eggs and for the parasites, respectively. Additionally, we found that as stage of parasitism becomes longer, the accuracy of parasitism detection also increases (76 % at 7 days).

HDR brachytherapy afterloader quality assurance optimization using monolithic silicon strip detectors.

There currently exists no widespread high dose-rate (HDR) brachytherapy afterloader quality assurance (QA) tool for simultaneously assessing the afterloader's positional, temporal, transit velocity and air kerma strength accuracy. The purpose of this study was to develop a precise and rigorous technique for performing daily QA of HDR brachytherapy afterloaders, incorporating QA of: dwell position accuracy, dwell time accuracy, transit velocity consistency and relative air kerma strength (AKS) of an Ir-192 source. A Sharp ProGuide 240mm catheter (Elekta Brachytherapy, Veenendaal, The Netherlands) was fixed 5mm above a 256 channel epitaxial diode array 'dose magnifying glass' (DMG256) (Centre for Medical and Radiation Physics, University of Wollongong). Three dwell positions, each of 5.0s dwell times, were spaced 13.0mm apart along the array with the Flexitron HDR afterloader (Elekta Brachytherapy, Veenendaal, The Netherlands). The DMG256 was connected to a data acquisition system (DAQ) and a computer via USB2.0 link for live readout and post-processing. The outputted data files were analyzed using a Python script to provide positional and temporal localization of the Ir-192 source by tracking the centroid of the detected response. Measurements were repeated on a weekly basis, for a period of 5weeks to determine the consistency of the measured parameters over an extended period. Using the DMG256 for relative AKS measurements resulted in measured values within 0.6%-3.0% of the expected activity over a 7-week period. The sub-millisecond temporal accuracy of the device allowed for measurements of the transit velocity with an average of (10.88±1.01) cm/s for 13mm steps. The dwell position localization for 1, 2, 3, 5, and 10mm steps had an accuracy between 0.1 and 0.3mm (3σ), with a fixed temporal accuracy of 10ms. The DMG256 silicon strip detector allows for clinics to perform rigorous daily QA of HDR afterloader dwell position and dwell time accuracy with greater precision than the current standard methodology using closed circuit television and a stopwatch. Additionally, DMG256 unlocks the ability to perform measurements of transit velocity/time and relative AKS, which are not possible using current standard techniques.

МЕТОДОЛОГИЯ КЛИНИЧЕСКИХ АУДИТОВ ОТДЕЛЕНИЙ ЛУЧЕВОЙ ТЕРАПИИ В РФ НА ОСНОВЕ ПРИНЦИПОВ АУДИТА МАГАТЭ QUATRO

Purpose: To describe the essence, tasks and algorithm of comprehensive audit in radiotherapy departments of medical institutions in Rus sian Federation. The methodology of audits conducted by the International Atomic Energy Agency (IAEA) and adapted for its further application, was used as a model. The global goal of the audit project is to standardize and harmonize procedures to ensure safety and quality control of treatment of cancer patients in different institutions, to enable comparison of radiation therapy results among participating institutions, to conduct interclinical studies and, possibly, to create a unified data register. Material and methods: One of the main aspects of clinical audits is the harmonization of standards between different departments. Clinical audits in radiotherapy can be an important tool for interclinical quality assurance (QA) program, effectiveness and safety of radiotherapy, and treatment protocols synchronization. Audits allow an in-depth analysis of the procedures and processes governing patient care in a particular clinic. Such clinical audits cover the whole chain of patients care, the organization of structural units, the infrastructure, clinical, physics and technical aspects underlying the radiotherapy department. This audit is a peer review process conducted by an audit team consisting of a radiation oncologist (RO), medical physicist (MP) and radiation technologist (RTT) and is known as QUATRO and stands for Quality Assurance Team in Radiation Oncology). Possible audit tools include: 1. Saff interviewing. 2. Examination of the structure of the entire department. 3. Review and evaluation of procedures and all relevant documentation, including analysis of patient charts. 4. Conducting independent measurements of absorbed doses and other methods of local procedures monitoring, where relevant and appropriate. 5. Observation of the practical implementation of operating procedures. Results: It was decided to use the IAEA QUATRO methodology for clinical audits and to adapt it to the specifics of radiotherapy in Russian Federation. One of the advantages of such a clinical audit is that the formalism and algorithm of this approach will be identically applied in all departments, which will allow comparing and analyzing the results. In order to obtain structured information, a detailed research protocol, which is a questionnaire, has been developed. The questions in the questionnaire allow to assess key aspects of the radiotherapy process that affect clinical outcomes and treatment efficiency.

Effect of war on radiotherapy in Ukraine and how to help.

1513 Background: The full-scale Russian invasion of Ukraine on February 24th, 2022 brought the largest humanitarian disaster to the heart of Europe since the World War II. In this work, we describe the impact of the full-scale Russian invasion on the radiation therapy (RT) services in Ukraine and suggest how to help. Methods: We collected the information on operation of RT centers in Ukraine during the war. In addition, in 2023 an annual survey was conducted by Grigoriev Institute for Medical Radiology in Kharkiv for the IAEA DIRAC database. The survey was sent to 41 RT centers in Ukraine requesting information on equipment, staffing, and patient volume. Due to the war conditions the data provided in the survey is limited to the un-occupied territories. Results: After the initial Russian invasion of Ukraine in 2014 and occupation of Crimea and parts of Donbas, Ukraine lost access to 7 RT centers with 18 external beam radiotherapy (EBRT) machines (17% of total). Just before the full-scale invasion in 2022, there were a total of 44 Co-60 machines (57%) and 33 linear accelerators (43%) in the unoccupied territories. As a result of the full-scale invasion of Ukraine in 2022, almost all RT centers suspended operation in the first weeks of war. The most challenging period for RT in Ukraine was in March when Kyiv (where 20 EBRT machines are located) was partially surrounded by the occupiers. Based on the DIRAC survey, compared to 2021 data, in 2022 the number of radiation oncologists decreased on average by 2.9%, medical physicists by 6.7%, and therapists by 6.5% but there was a large variation in staffing levels depending on the region and its proximity to war. The workload in the RT centers close to the combat zone almost halved, while increasing by 10 - 60% in the western and central Ukraine. The total number of patients treated with EBRT decreased by 11% and brachytherapy by 21%. Brachytherapy services sustained the most interruption (47% decrease in LDR and 18% decrease in HDR patient volume) due to inability to perform source exchanges. Overall, approximately 5,500 less patients were treated in 2022 compared to 2021. Despite the ongoing war, Ukrainian cancer centers installed 8 new linear accelerators, with 5 linear accelerators pending installation. In addition, the Ministry of Heath of Ukraine has recently purchased 15 linear accelerators to replace the aging Co-60 machine fleet as the future source exchanges might not be possible. There is an acute need in helping Ukraine transition from Co-60 to modern IMRT/VMAT linear accelerators. Conclusions: Radiotherapy in Ukraine sustained significant damages since the 2014 Russian invasion, which was exacerbated further by the full-scale invasion in 2022. To support the vitality and absorptive capacity of RT services in Ukraine, the democratic world can help by donating equipment, hardware, software, and participating in training of Ukrainian RT professionals as they transition to modern and high-quality RT care for Ukrainian cancer patients.

Preface

The Annual International Symposium on Physics and Applications (ISPA) is organized by the Department of Physics, Faculty of Sciences and Data Analytics at Institut Teknologi Sepuluh Nopember (ITS), Indonesia. Following the success of the 1st ISPA 2020 and the 2nd ISPA 2021, the 3rd ISPA, scheduled for November 22-23, 2023, aims to provide a platform for physicists to exchange ideas and engage in discussions at both the national and international levels. The event is generously supported by Airlangga University, the State University of Surabaya, and the National University of Singapore. The symposium features six keynote speakers and six invited speakers from various countries, including Japan, Turkey, Taiwan, Iraq, Saudi Arabia, Malaysia, and Indonesia. With a total of 51 full papers and 12 abstracts received for oral presentations, the selected contributions cover a wide range of research topics, including theoretical physics, modeling, computational physics, laser and optoelectronics, instrumentation and acoustics, earth sciences and geophysics, bio and medical physics, as well as material physics. Acknowledgments are extended to the advisory committee members, namely Suminar Pratapa, A. Rusydi, Madlazim, and G. Nabi, for their valuable contributions in creating a well-balanced scientific program. The organizers express their delight at the active participation of numerous graduate students and extend gratitude to the keynote and invited speakers, as well as all contributors to the 3rd ISPA 2023. Furthermore, the organizers express our gratitude to ITS for partially funding this conference. The organizers hope that the symposium will foster the initiation of research collaborations among participants, thereby supporting and enhancing the quality of research in the field of Physics and its applications, particularly within Indonesia. List of Organizing Committee, Keynote Speakers and Invited Speakers are available in this pdf.

Book review: “Guidelines on professional ethics for medical physicists”, Training Course Series 78, Vienna, 2023

Abstract The International Atomic Energy Agency (IAEA) has published the document namely “Guidelines on professional ethics for medical physicists” in 2023. This document complements several other IAEA publications on similar topics like IAEA Human Health Series 25. The “code of ethics” in medical physics practices is an essentially important topic and this publication covers the topic comprehensively. However, a few areas of improvement like the correlation of this publication with the concepts of leadership, safety culture, etc. have been identified in this review.

Commissioning of the first hospital-based PET radiopharmaceutical cyclotron in Greece: personnel dose assessment

The role of 18F–fluoro–deoxy–glucose in positron emission tomography (PET) imaging is well established in diagnosis and management of cancer patients. Installations of on-site self-shielded mini cyclotrons are increasing. The Dose on Demand Biomarker Generator BG-75 was installed at Metaxa Cancer Hospital, Greece, in May 2021 and is the first hospital-based PET radiopharmaceutical cyclotron in the country. Personnel expected external exposure was established during commissioning; internal exposure is not expected. Personnel dose was estimated with two methods: survey meter measurements in various locations combined with the time spent in each location, and direct measurement using electronic personal dosemeters. Gamma and neutron radiation readings outside the cyclotron vault were at background levels. Inside the cyclotron vault, the highest recorded radiation readings by the target were 18 μSv h−1 for both gammas and neutrons with cyclotron in operational mode; at one meter, the values were 5 μSv h−1 and 4 μSv h−1, respectively. The annual expected whole body dose per cyclotron operator is 0.6 mSv, and the respective extremity dose 16 mSv. The annual expected whole body and extremity dose for the radiochemist is 0.3 mSv and 25 mSv, respectively. The respective annual dose estimates for the medical physicists are < 1 mSv. The expected personnel doses are well below the regulatory limits and local as low as reasonably achievable (ALARA) levels. With experience and a robust ALARA program, personnel exposure could be further reduced.

Workforce evaluation in the field of radiation oncology: National data from a limited-resource setting.

e13576 Background: The workforce shortage in the field of radiation oncology is a critical challenge in developing countries. This study's main objective was to evaluate the workload of radiation oncologists (RO) in Armenia. Methods: In this cross-sectional study, the adapted questionnaire from Gunasekera et al. (2021) survey was used. The study setting was the only two RO centers operating in Armenia (public and private). For data collection purposes, census sampling was done and self-administered questionnaires were distributed. The data collection time frame was 15-25 July 2023. Descriptive statistics was done to analyze and present data through portions. Results: In total, data on 16 ROs and residents was collected. The ratio of ROs per million population was 6 in 2023, in Armenia. Primary consultations in median lasted 25 minutes (range: 10-40 mins). Similarly, consults of the patients on active treatment lasted in median of 12.5 minutes (min-60 mins). The median duration of follow-up oncology care consults was 7.5 minutes per day (range: 10- 40 mins). In terms of clinic hours, physicians in public settings reported spending a median of 50 hours per week. According to the respondents, on average radiation therapy specialists allocated 50% of their working time to providing direct patient care, 35% to fulfilling administrative responsibilities, 5% to educational and teaching endeavors, and 10% to conducting scientific research. The median radiation therapy delay was 1 week. Namely, treatment delay in the non-metastatic setting was 1․19, and in the metastatic setting 1 week. By the ROs, the most common barriers to delivering cancer care were treatment high cost (68%, n=11), lack of access to imaging (18.7%, n=3) and pathological (18.7%, n=3) diagnostic procedures, and lack of physicians' time to dedicate to patients (31%, n=5). Conclusions: Our study offers some insight into the radiation oncology workload in Armenia. From this research, we conclude that Armenian healthcare is understaffed in terms of radiation oncologists and medical physicists compared to other upper-middle-income and high-income income countries. Moreover, the median daily workload of the ROs exceeds the upper limit of the amount of consults suggested by the international societies. Hence, further research is required for a detailed evaluation of the RO workforce and specific intervention development that will be able to address this issue in Armenia and other resource-limited settings.

Editorial: Editor’s challenge in medical physics and imaging: quantitative medical imaging

Editorial: Editor’s challenge in medical physics and imaging: quantitative medical imaging

Strengthening education and training programmes for medical physics in Asia and the Pacific: the IAEA non-agreement technical cooperation (TC) regional RAS6088 project.

This article documents the work conducted in implementing the IAEA non-agreement TC regional RAS6088 project "Strengthening Education and Training Programmes for Medical Physics". Necessary information on the project was collected from the project counterparts via emails for a period of one month, starting from 21st September 2023, and verified at the Final Regional Coordination Meeting in Bangkok, Thailand from 30th October 2023 to 3rd November 2023. Sixty-three participants were trained in 5 Regional Training Courses (RTCs), with 48%, 32% and 20% in radiation therapy, diagnostic radiology, and nuclear medicine, respectively. One RTC was successfully organised to introduce molecular biology as an academic module to participants. Three participating Member States, namely United Arab Emirates (UAE), Nepal and Afghanistan have initiated processes to start the postgraduate master medical physics education programmes by coursework, adopting the IAEA TCS56 Guidelines. UAE has succeeded in completing the process while Nepal and Afghanistan have yet to initiate the programme. The postgraduate master medical physics programmes by coursework were strengthened in Indonesia, Jordan, Malaysia, Pakistan, Syria, and Thailand, along with the national registration of medical physicists. In particular, Thailand has revised 6 postgraduate master medical physics programmes by coursework during the tenure of this project. Home Based Assignment and RTCs have resulted in two publications. In conclusion, the RAS6088 project was found to have achieved its planned outcomes despite challenges faced due to the COVID-19 pandemic. It is proposed that a follow up project be implemented to increase the number of Member States who are better prepared to improve medical physics education and training in the region.