Journal of Medical Radiation Sciences最新文献

Three-Dimensional Printing in Breast Radiation Therapy: A Scoping Review of the Literature. 三维打印在乳房放射治疗中的应用：文献综述。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-27 DOI: 10.1002/jmrs.70000

Chamitha Weerasinghe, Patrick Estoesta, Ashley Cullen, Elizabeth Claridge Mackonis

{"title":"Three-Dimensional Printing in Breast Radiation Therapy: A Scoping Review of the Literature.","authors":"Chamitha Weerasinghe, Patrick Estoesta, Ashley Cullen, Elizabeth Claridge Mackonis","doi":"10.1002/jmrs.70000","DOIUrl":"https://doi.org/10.1002/jmrs.70000","url":null,"abstract":"Introduction: Tissue equivalent bolus is used to increase dose to skin and superficial tissue in adjuvant breast or chest wall radiation therapy. Three-dimensional (3D) printed bolus offers a customised conformal device and potential for improved anatomic conformity and dose distribution.Methods: A literature search was defined as per PRISMA guidelines for scoping review. Inclusion criteria were determined using PICO guidelines. The parameters of interest, including year, journal, study type, intervention details, clinical sample size and pre-clinical case numbers, were extracted from each article. The reported outcomes, such as dosimetry, anatomic conformity, dose to organs at risk and toxicity data were recorded.Results: Thirteen publications were reviewed, six studies were pre-clinical and seven were clinical. Ten were performed in the post-mastectomy setting and utilised polylactic acid (PLA) bolus. Overall, most studies reported marginal improvement in dosimetry, anatomic conformity, organ at risk dosimetry and toxicity with 3D printed bolus. However, sample sizes utilised were small and study design was variable with unusual choices of comparator arm and introduction of other variables.Conclusion: Three-dimensional printed bolus is an emerging technology in radiation oncology. Most available data in the setting of breast radiation therapy is positive, though interpretation of results is difficult given the small sample sizes and variable study design. Further investigations in larger cohorts in a clinical setting is warranted.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Local Diagnostic Reference Levels in Digital Breast Tomosynthesis. 数字乳腺断层合成的局部诊断参考水平。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-25 DOI: 10.1002/jmrs.892

Peter Barnes, Michelle Kostidis, Julie Nguyen, Molly O'Donohue

{"title":"Local Diagnostic Reference Levels in Digital Breast Tomosynthesis.","authors":"Peter Barnes, Michelle Kostidis, Julie Nguyen, Molly O'Donohue","doi":"10.1002/jmrs.892","DOIUrl":"https://doi.org/10.1002/jmrs.892","url":null,"abstract":"Introduction: Diagnostic Reference Levels (DRLs) are a guideline to indicate whether the radiation administered during medical procedures performed under routine conditions is unusually low or high. Currently, there are no national DRLs in Australia for Digital Breast Tomosynthesis Mammography (DBT). Given the radiosensitivity of breast tissue, establishing DRLs for DBT is of great importance. This research aims to develop Local Diagnostic Reference Levels (LDRLs) for DBT that can be used as a guide for monitoring radiation delivery levels, and a Quality Assurance tool to assist in monitoring the performance of the mammography unit.Methods: Average Glandular Dose (AGD) was collected from patient data through OpenREM software. Other data collected included breast density, compression force, compressed breast thickness (CBT), operative and treatment status. LDRLs were set using the 75th percentile (third quartile AGD values), categorised into four CBT ranges and compared against the median AGD values.Results: LDRLs were similar for both craniocaudal and mediolateral oblique views. LDRLs for CBT ranges of 13-49 mm, 50-74 mm, 75-99 mm and 100-118 mm were calculated to be 1.5, 2.70, 3.90 and 4.70 mGy, respectively. There was no statistically significant correlation between breast density and AGD.Conclusion: It was found that CBT had a larger impact on dose than density. Significant differences were found between the LDRLs for each of the CBTs; therefore, setting a single LDRL for all CBTs may result in missing unacceptably high or low breast doses. LDRLs should be reviewed frequently to ensure the radiation dose patients receive is within optimal levels.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144497324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creating Our Professional Evidence-Base: A Journey, Not a Destination. 创建我们的专业证据基础：一个旅程，而不是目的地。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-23 DOI: 10.1002/jmrs.70003

Jonathan P McNulty

引用次数: 0

Optimising Radiation Dose Estimation: UNSCEAR DAP-to-ED Conversion in Uterine Artery Embolisation. 优化辐射剂量估计：UNSCEAR子宫动脉栓塞中dap到ed的转换。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-19 DOI: 10.1002/jmrs.70002

Don J Nocum, John Robinson, Warren Reed

{"title":"Optimising Radiation Dose Estimation: UNSCEAR DAP-to-ED Conversion in Uterine Artery Embolisation.","authors":"Don J Nocum, John Robinson, Warren Reed","doi":"10.1002/jmrs.70002","DOIUrl":"10.1002/jmrs.70002","url":null,"abstract":"Introduction: Radiographers and physicians working in interventional radiology (IR) departments are responsible for monitoring and optimising radiation dose exposure to both patients and staff. The dose-area product (DAP) is a common measurement of radiation output but does not directly correlate with stochastic risks. Pre-determined conversion factors allow estimation of effective dose (ED) for IR procedures to better assess radiation exposure risks. This study evaluates the clinical utility of DAP-to-ED conversion factors to improve knowledge of radiation risk assessment.Methods: Retrospective data on DAP (Gray per centimetre-squared/Gy.cm2) from uterine artery embolisation (UAE) procedures were analysed. Conversion factors were obtained from the 'United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) Global Survey on Medical Exposure: A User Manual'. Group A (n = 50), which followed standard protocols, was compared with Group B (n = 50) which implemented dose optimisation techniques.Results: Multivariable linear regression (MVLR) analysis demonstrated that DAP correlated with the converted ED values for both groups (p < 0.01). The mean ED was 9.5 milliSieverts (mSv) for Group A and 8.7 mSv for Group B.Conclusion: MVLR analysis confirmed a strong correlation between DAP and the ED conversions, demonstrating that the 'UNSCEAR User Manual' has potential to serve as a DAP-to-ED estimation tool for common interventional procedures. The mean ED found was equivalent to the radiation dose of approximately one abdominal computed tomography (CT) scan. Implementing DAP-to-ED conversion can be valuable in improving both clinicians and patients' awareness of radiation exposure.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Digital Breast Tomosynthesis on Extra Views and Concomitant Ultrasound Examinations in One Year Post Breast-Conserving Surgery Patients. 数字乳房断层合成对保乳术后1年患者额外视点及伴随超声检查的影响。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-16 DOI: 10.1002/jmrs.70001

Michelle Kostidis, Yasha Pathmaperuma, Numan Kutaiba, Mia Le Plastrier

{"title":"Impact of Digital Breast Tomosynthesis on Extra Views and Concomitant Ultrasound Examinations in One Year Post Breast-Conserving Surgery Patients.","authors":"Michelle Kostidis, Yasha Pathmaperuma, Numan Kutaiba, Mia Le Plastrier","doi":"10.1002/jmrs.70001","DOIUrl":"https://doi.org/10.1002/jmrs.70001","url":null,"abstract":"Introduction: Imaging surveillance of patients post breast surgery for breast cancer is routinely performed with mammography. In practice, a large number of patients receive a concomitant ultrasound. The latter has not been established as routine practice and varies across imaging departments and referrers. This study aims to determine if the use of digital breast tomosynthesis (DBT) has decreased the need for concomitant ultrasound and extra mammographic views compared to digital mammography (DM).Methods: Data was retrospectively reviewed for patients undergoing surveillance mammography for two periods: 2015-2016 (DM) and 2018-2019 (DBT). Patients identified as first-year post breast-conserving surgery (BCS) were included in the study. Comparison of proportions of concomitant ultrasound use between the two periods, with subgroup analysis for breast density categories, was performed using Chi-squared tests.Results: The study included 499 patients, of which 245 and 254 represented the DM and DBT periods, respectively, with a mean age of 60.1 years (SD 13.1) for the entire cohort. During DBT period, the percentage of patients having concomitant ultrasounds decreased by 15 percentage points (95% CI 8.9%-21.1%) (p < 0.0001) when compared to the DM period. During DBT period, the percentage of patients having extra views decreased by 44 percentage points (95% CI 36.1%-51.1%) (p < 0.0001).Conclusion: The introduction of DBT resulted in fewer concomitant ultrasound examinations and extra mammographic views performed in the first-year post breast cancer treatment. The role of ultrasound in cancer surveillance post-treatment is debatable and large prospective studies investigating its value are warranted.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144310031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuing Professional Development - Medical Imaging. 持续专业发展-医学影像。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-11 DOI: 10.1002/jmrs.894

引用次数: 0

Development and Initial Evaluation of an In-House Paediatric CT Immobilisation Device. 一种室内儿科CT固定装置的开发和初步评估。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-03 DOI: 10.1002/jmrs.891

Maeve Masterson, Vinay Krishnan, Ahilan Kuganesan, Mohamed K Badawy

{"title":"Development and Initial Evaluation of an In-House Paediatric CT Immobilisation Device.","authors":"Maeve Masterson, Vinay Krishnan, Ahilan Kuganesan, Mohamed K Badawy","doi":"10.1002/jmrs.891","DOIUrl":"https://doi.org/10.1002/jmrs.891","url":null,"abstract":"Introduction: Paediatric imaging often requires immobilisation to reduce motion artefacts, reduce the risk of repeat imaging and subsequently reduce patient radiation exposure. Commercial immobilisation devices may be expensive and infrequently used, making them difficult to justify for institutions with budget constraints. This study aimed to design and evaluate a cost-effective, in-house alternative.Methods: An in-house CT immobilisation device was developed using acrylic and polyethylene foam, tailored for newborns under 5 kg. Image quality was assessed using a Gammex ACR phantom on a CT scanner. Hounsfield units, noise and artefacts were compared between the in-house and commercial devices. Artefacts were independently evaluated by a radiographer and a medical physicist.Results: The in-house device performed comparably to the commercial version, with uniformity deviation within 2 HU and noise within 2.4 SD of baseline values; artefacts were minimal for both devices. There was no significant difference between the two immobilisation devices (p = 0.711). Stability concerns with the in-house device's square base could be resolved using immobilisation straps, and future iterations should address the foam insert's porous nature.Conclusion: The in-house CT immobilisation device offers a cost-effective alternative without compromising image quality, making it a viable option for healthcare institutions with limited budgets. However, its implementation would require further clinical evaluation and compliance with local regulations.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimising Beam Geometry in Orthopaedic X-Rays: A Phantom Study. 优化骨科x射线的光束几何形状：一个幻影研究。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-06-03 DOI: 10.1002/jmrs.895

Jodie Ringin, Zac Maibaum, Lucy Fox, Will Merritt

{"title":"Optimising Beam Geometry in Orthopaedic X-Rays: A Phantom Study.","authors":"Jodie Ringin, Zac Maibaum, Lucy Fox, Will Merritt","doi":"10.1002/jmrs.895","DOIUrl":"https://doi.org/10.1002/jmrs.895","url":null,"abstract":"Introduction: Antoni Cieszynski, a 19th-century Polish dentist, pioneered a rule of isometry for accurate dental radiography. His bisecting angle technique improved the precision of imaging teeth by angling the x-ray tube perpendicular to a 'bisecting line' between the object and the image receptor, thereby minimising geometric distortion and achieving more anatomically accurate images. This study explored the potential use of this rule for x-ray imaging of long bones when routine positioning techniques are compromised.Methods: Using an adult phantom forearm, an experiment was conducted to quantify the effectiveness of the bisecting angle technique on a long bone. A control image using a straight tube with the bone parallel to the digital image receptor (IR) was taken. This was followed by x-rays of the phantom forearm at 15° increments with a straight tube, matching tube angle and the bisecting angle technique. The resulting images were analysed by a single scribe and reviewed by one other peer for geometric distortion using the calliper measurement tool.Results: The control image measured 21.4 cm. When the central ray matched the angle of the phantom forearm, the maximum elongation exceeded the length of the detector (> 43 cm). When a straight tube angle was applied, the maximum foreshortening measured 13.5 cm. Meanwhile, the maximum length of the phantom forearm, when the bisecting angle was applied, was 24.1 cm. While the use of the bisecting angle technique did not eliminate geometric distortion, it greatly reduced it. The experiment identified that common radiographic practice has the potential to be improved.Conclusions: The bisecting angle technique offers a promising method to improve long bone imaging. While it does not fully eliminate geometric distortion, it effectively minimises elongation, suggesting a potential to enhance imaging accuracy for long bones in clinical settings.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuing Professional Development—Medical Imaging 持续专业发展-医学影像。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-05-19 DOI: 10.1002/jmrs.886

引用次数: 0

Digitally Enhanced Plaster of Paris Imaging of Distal Radial Fractures Is Preferred by Orthopaedic Surgeons and Radiologists: A Single Site Survey. 数字增强的Paris石膏成像桡骨远端骨折是骨科医生和放射科医生的首选：一项单一部位调查。

IF 1.8

Journal of Medical Radiation Sciences Pub Date : 2025-05-14 DOI: 10.1002/jmrs.890

Paul Kelly, Annie K Lewis, Haoji Sima, Amy M Dennett

{"title":"Digitally Enhanced Plaster of Paris Imaging of Distal Radial Fractures Is Preferred by Orthopaedic Surgeons and Radiologists: A Single Site Survey.","authors":"Paul Kelly, Annie K Lewis, Haoji Sima, Amy M Dennett","doi":"10.1002/jmrs.890","DOIUrl":"https://doi.org/10.1002/jmrs.890","url":null,"abstract":"Introduction: X-rays of bone fractures immobilised with Plaster of Paris (POP) produce images of reduced diagnostic quality due to the increased density and irregular pattern of the POP overlying the anatomy of interest. Post-processing parameters in digital radiography (DR) can be applied to POP images to increase diagnostic quality without increasing radiation dose. The aim of this study was to evaluate the preferred image quality of POP immobilised distal radius fractures using optimised digital image manipulation algorithms.Methods: A cross-sectional, quantitative survey study was conducted between November 2021 and December 2023 at a large metropolitan health network. The manufacturer standard algorithm and three new image post-processing algorithms were applied to pre-selected image sets. Orthopaedic surgeons (n = 34) and radiologists (n = 35) were surveyed to rank image quality of 10 random image sets (80 images in total). Data were described and analysed using median rankings, Mann-Whitney U tests and Friedman rank tests with post hoc Wilcoxin rank tests.Results: A total of 13 orthopaedic surgeons and 14 radiologists participated. A highly enhanced algorithm using contrast boost (Algorithm D) was the most preferred set (n = 18/27) due to better visibility of bony detail and fracture sites. There was no difference in rankings between clinician groups.Conclusion: In this single site survey, both orthopaedic surgeons and radiologists preferred the highly enhanced post-processing algorithm (D) indicating that image quality can be improved using optimised digital manipulation. POP post-processing parameters with contrast boosting could be implemented to potentially increase diagnostic accuracy without increasing radiation dose for x-ray imaging of the wrist with POP.","PeriodicalId":16382,"journal":{"name":"Journal of Medical Radiation Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0