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Journal of Medical Radiation Sciences

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https://www.readbyqxmd.com/read/28731288/radiation-therapists-perspectives-on-participating-in-research
#1
Georgia K B Halkett, Melissa Berg, Martin A Ebert, David Cutt, Michael Davis, Desley Hegney, Michael House, Michelle Judson, Rachel Kearvell, Michele Krawiec, Leanne Lester, Sharon Maresse, Peter McLoone, Jan McKay
INTRODUCTION: The objectives of this research were to: (1) determine the extent of Australian radiation therapists (RTs) research participation; (2) evaluate the impact of research involvement on career perceptions (3) explore which research topics require investigation and (4) identify benefits and barriers to research participation. METHODS: This study used mixed methods to collect qualitative and quantitative data using an online survey from a larger workforce study of RTs and radiation oncology medical physicists...
July 21, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28661036/intracavitary-vaginal-brachytherapy-using-a-custom-balloon-applicator
#2
Dean B Paterson, Shelley M Pearson, Andrew N Wilson
A custom balloon applicator was created to deliver intracavitary high-dose-rate brachytherapy to a patient with a superficial vaginal cancer. The patient was unable to be treated conventionally due to an extremely narrow introitus that prevented the introduction of a conventional cylinder applicator. The custom applicator was constructed by inserting a straight titanium tandem applicator through the drainage lumen of a Foley catheter. The applicator was inserted and the catheter balloon was inflated when positioned at the vaginal apex...
June 29, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28653426/achieving-success-in-clinically-based-research-the-importance-of-mentoring
#3
Elizabeth C Ward, Catriona Hargrave, Elizabeth Brown, Georgia Halkett, Peter Hogg
Within the professions of radiation therapy and medical imaging, clinician led research activity is becoming more prevalent. However, more is needed. A key component of continuing to develop professional groups who are both research active and producing high quality clinical research, is research mentoring. The authors of this paper share a common interest in enhancing research capacity through research mentoring within the health workforce, and came together to run a workshop on this issue at the 11th Annual Scientific Meeting of Medical Imaging and Radiation Therapy (ASMMIRT 2016) conference in Brisbane...
June 26, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28580762/static-beam-tomotherapy-as-an-optimisation-method-in-whole-breast-radiation-therapy-wbrt
#4
Matthew Squires, Yunfei Hu, Mikel Byrne, Ben Archibald-Heeren, Sonja Cheers, Bruno Bosco, Amy Teh, Andrew Fong
INTRODUCTION: TomoTherapy (Accuray, Sunnyvale, CA) has recently introduced a static form of tomotherapy: TomoDirect™ (TD). This study aimed to evaluate TD against a contemporary intensity modulated radiation therapy (IMRT) alternative through comparison of target and organ at risk (OAR) doses in breast cancer cases. A secondary objective was to evaluate planning efficiency by measuring optimisation times. METHODS: Treatment plans of 27 whole-breast radiation therapy (WBRT) patients optimised with a tangential hybrid IMRT technique were replanned using TD...
June 4, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28573710/margins-matter-current-radiation-therapy-practice-and-future-directions
#5
EDITORIAL
Catriona Hargrave, Tanya Holt
Commentary is provided in the context of current practices for calculating radiation therapy margins and future directions that will impact on this.
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28263044/mri-for-premature-neonatal-brain-injury-a-case-report
#6
Alexander Langham
This case report aims to extend analytical thinking and clinical reasoning of clinicians and radiographers when presented with diagnosing premature neonatal brain injuries (PNBI). The report considers the uses and merit of magnetic resonance imaging (MRI) in the primary assessment of PNBI. The traditional technique of cranial ultrasound as the first modality of choice can have several limitations, which includes a lower temporal resolution in its ability to differentiate grey-white matter distribution patterns, lower spatial resolution in its ability to accurately map white matter fibre tracts and distribution patterns which are critical in white matter injury pathological events...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28247587/establishment-of-institutional-diagnostic-reference-level-for-computed-tomography-with-automated-dose-tracking-software
#7
Chong R Liang, Priscilla X H Chen, Jeevesh Kapur, Michael K L Ong, Swee T Quek, Subhash C Kapur
INTRODUCTION: The aim of this study was to establish institutional diagnostic reference levels (DRLs) by summarising doses collected across the five computed tomography (CT) system in our institution. METHODS: CT dose data of 15940 patients were collected retrospectively from May 2015 to October 2015 in five institutional scanners. The mean, 75th percentile and 90th percentile of the dose spread were calculated according to anatomic region. The common CT examinations such as head, chest, combined abdomen/pelvis (A/P), and combined chest/abdomen/pelvis (C/A/P) were reviewed...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28240447/comparison-of-treatment-techniques-for-reduction-in-the-submandibular-gland-dose-a-retrospective-study
#8
Christopher Hoyne, Marcus Dreosti, John Shakeshaft, Siddartha Baxi
INTRODUCTION: Recent studies have suggested reducing the dose submandibular glands receive when patients undergo head and neck radiotherapy can play a crucial role in preventing xerostomia. However, they are traditionally not spared due to concern that target coverage may be compromised. We investigated the possibility of sparing the contralateral submandibular gland (cSM) by utilising modern planning techniques. METHODS: 10 head and neck patients previously treated with conformal therapy at our centre were retrospectively planned using intensity modulated radiation therapy (IMRT), and volumetric modulated arc therapy (VMAT)...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27998039/a-randomised-comparison-of-three-different-immobilisation-devices-for-thoracic-and-abdominal-cancers
#9
Catherine Hubie, Maddison Shaw, Sean Bydder, Jonny Lane, Gemma Waters, Megan McNabb, Rachel Kearvell, Alicia Concannon, Chrianna Bharat, Rob Appleyard
INTRODUCTION: Patient immobilisation is critically important for both highly conformal conventionally fractionated radiotherapy and for stereotactic body radiotherapy. Different immobilisation devices are available to maintain patient position for radiotherapy but the most suitable one remains unknown. METHODS: Forty-five patients were randomly allocated to one of three immobilisation devices; the Q fix arm shuttle, BodyFIX without wrap or BodyFIX with wrap. Patients were imaged before and after treatment to ascertain intra-fraction and inter-fraction motion...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27863171/radiation-therapy-students-perceptions-of-their-learning-from-participation-in-communication-skills-training-an-innovative-approach
#10
Gay M Dungey, Hazel A Neser
INTRODUCTION: Communication skills training has been progressively integrated into the Bachelor of Radiation Therapy programme in New Zealand throughout the last 3 years. This innovative study aimed to explore students' perceptions of their learning from participation in communication skills workshops. The purpose was to expose students to a variety of common clinical situations that they could encounter as a student radiation therapist. METHODS: Common scenarios from the radiation therapy setting were developed, using trained actors as a standardised patient, staff member or member of the public...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27860454/geographical-miss-of-the-prostate-during-image-guided-radiotherapy-with-a-6-mm-posterior-expansion-margin
#11
Richard Oates, Daryl Jones, Farshad Foroudi, Suki Gill, Prabhakar Ramachandran, Michal Schneider, Michael Lim Joon, Tomas Kron
INTRODUCTION: Our department commonly uses a planning target volume (PTV) expansion of 6 mm posterior and 1 cm in all other directions when treating prostate cancer patients with image-guided radiotherapy (IGRT). This study aimed to test the adequacy of this PTV expansion by assessing geographical miss of the prostate on post-treatment cone-beam CT (CBCT) and identify those at risk of geographical miss. METHODS: Twenty-two prostate cancer patients receiving IGRT with implanted fiducial markers underwent daily pre-treatment orthogonal kV imaging followed by a post-treatment CBCT for a total of 432 fractions...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27741387/reducing-cardiac-doses-a-novel-multi-leaf-collimator-modification-technique-to-reduce-left-anterior-descending-coronary-artery-dose-in-patients-with-left-sided-breast-cancer
#12
Briana Welsh, Michael Chao, Farshad Foroudi
INTRODUCTION: When irradiating the left breast, a small portion of the heart and left anterior descending coronary artery (LAD) are often included in the treatment field. Deep inspiration breath-hold (DIBH) techniques reduce dose to coronary structures, but are resource intensive and may not be tolerated by all patients. The aim of this study was to evaluate a simple multi-leaf collimator (MLC) modification technique with respect to target coverage and organ-at-risk sparing. METHODS: Forty nine patients with left-sided breast cancer, planned with a simultaneous integrated boost technique were retrospectively replanned with additional shielding of the LAD...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27741381/reduced-dose-to-small-bowel-with-the-prone-position-and-a-belly-board-versus-the-supine-position-in-neoadjuvant-3d-conformal-radiotherapy-for-rectal-adenocarcinoma
#13
Rohen White, Farshad Foroudi, Joseph Sia, Mary Ann Marr, Daryl Lim Joon
INTRODUCTION: No consensus exists regarding the optimal treatment setup for neoadjuvant radiotherapy of rectal cancer using a 3D conformal (3D CRT) technique. Positioning the patient prone with a belly board aims to reduce the amount of small bowel irradiated. METHODS: Twenty-five patients with locally advanced rectal cancer underwent computed tomography (CT) planning for neoadjuvant chemoradiotherapy. Patients were simulated prone with a belly board and then in the supine position...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27741378/assessing-feasibility-compliance-and-toxicity-of-concomitant-chemo-radiotherapy-in-head-and-neck-cancers-in-the-northern-territory-initial-experience-and-challenges
#14
Ajay Gupta, Siddhartha Baxi, Christopher Hoyne
INTRODUCTION: Comprehensive oncology services have recently been introduced in the Northern Territory (NT) enabling delivery of concurrent chemo-radiotherapy (CCRT) in locally advanced head and neck squamous cell carcinoma (LAHNSC). The purpose of this study is to assess feasibility, compliance and toxicity of CCRT in remote Australia. METHODS: Chart review was conducted for all patients >18 years, with biopsy-proven LAHNSC, receiving curative intent CCRT between January 2010 and September 2012...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27741377/comparison-of-set-up-accuracy-among-three-common-immobilisation-systems-for-intensity-modulated-radiotherapy-of-nasopharyngeal-carcinoma-patients
#15
Cheng-Guang Lin, Sen-Kui Xu, Wen-Yan Yao, Yu-Qi Wu, Jian-Lan Fang, Vincent W C Wu
INTRODUCTION: In intensity modulated radiotherapy (IMRT) of nasopharyngeal carcinoma (NPC) patients, an effective immobilisation system is important to minimise set up deviation. This study evaluated the effectiveness of three immobilisation systems by assessing their set up deviations. METHODS: Patients were randomly assigned to one of the three immobilisation systems: (1) supine on head rest and base plate (HB); (2) supine with alpha cradle supporting the head and shoulder (AC); (3) supine with vacuum bag supporting the head and shoulder (VB)...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/27741376/dichotomy-between-theory-and-practice-in-chest-radiography-and-its-impact-on-students
#16
Benard O Botwe, Lawrence Arthur, Michael K K Tenkorang, Samuel Anim-Sampong
INTRODUCTION: It is important that theory is synchronous with clinical practices that students engage in. Lack of congruence between theory and practice presents serious problems to students. This study was therefore conducted to determine if there was a theory-practice gap in chest radiography during clinical rotations, and any associated causes and effects on radiography students. METHOD: A descriptive survey design was used to conduct this study from 2 February to 27 July 2014...
June 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28440052/doctoral-profile-of-the-medical-radiation-sciences-a-baseline-for-australia-and-new-zealand
#17
Ernest U Ekpo, Beverly Snaith, Martine A Harris, Mark F McEntee
INTRODUCTION: Research is critical to evidence-based practice, and the rapid developments in technology provide opportunities to innovate and improve practice. Little is known about the research profile of the medical radiation science (MRS) profession in Australia and New Zealand (NZ). This study provides a baseline of their doctoral activity. METHODS: A cross-sectional survey of MRS professionals in Australia and NZ holding a doctorate or undertaking doctoral studies, was performed using an online tool (Bristol Online Survey(®) , Bristol, UK)...
April 25, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28407440/improving-education-and-supervision-of-queensland-x-ray-operators-through-video-conference-technology-a-teleradiography-pilot-project
#18
Marnie Rawle, Tanya Oliver, Alison Pighills, Daniel Lindsay
INTRODUCTION: X-ray Operator (XO) supervision in Queensland is performed by radiographers in a site removed from the XO site. This has historically been performed by telephone when the XO requires immediate help, as well as post-examination through radiographer review and the provision of written feedback on images produced. This project aimed to improve image quality through the provision of real-time support of XOs by the introduction of video conference (VC) supervision. METHODS: A 6-month pilot project compared image quality with and without VC supervision...
April 13, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28374502/the-role-of-digital-breast-tomosynthesis-in-the-breast-assessment-clinic-a-review
#19
REVIEW
Suneeta Mall, Sarah Lewis, Patrick Brennan, Jennie Noakes, Claudia Mello-Thoms
Mammography has long been considered as the primary technique in breast cancer detection and assessment. Despite low specificity, mammography has been preferred over other contemporary techniques such as magnetic resonance imaging (MRI), computed tomography (CT) and ultrasonography (US) due to superior sensitivity and significant health economic benefits. The development of a new technique, a limited angle cone beam pseudo-three-dimensional tomosynthesis, digital breast tomosynthesis (DBT), has gained momentum...
April 4, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28271639/first-australian-experience-of-treating-localised-prostate-cancer-patients-with-cyberknife-stereotactic-radiotherapy-early-psa-response-acute-toxicity-and-quality-of-life
#20
Ashutosh Dixit, Colin Tang, Sean Bydder, Mary-Anne Kedda, Eva Vosikova, Chrianna Bharat, Suki Gill
INTRODUCTION: This study is to evaluate biochemical response, acute toxicity and health-related quality-of-life (QOL) outcomes among prostate cancer patients following stereotactic body radiation therapy (SBRT) in the first Australian CyberKnife facility. METHODS: Forty-five consecutive patients with clinically localised prostate cancer were treated with SBRT using CyberKnife technology and enrolled in this study. Protocol treatment consisted of 36.25 Gy in five fractions...
March 8, 2017: Journal of Medical Radiation Sciences
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