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Journal of Medical Imaging and Radiation Oncology

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https://www.readbyqxmd.com/read/28623872/uptake-in-sympathetic-ganglia-on-68-ga-psma-hbed-pet-ct-a-potential-pitfall-in-scan-interpretation
#1
Gowri L Kanthan, Edward Hsiao, Dzung Vu, Geoffrey Paul Schembri
INTRODUCTION: The aim of this study was to assess the frequency of PSMA-HBED uptake in coeliac and stellate ganglia in patients presenting for PSMA-HBED PET/CT scan. METHODS: Prostate-specific membrane antigen-HBED PET/CT scans of 100 consecutive patients were analysed. Coeliac and stellate ganglia were identified by their anatomical location. PSMA-HBED uptake in these ganglia was recorded as either present or absent. If present, the SUVmax value for each ganglion was measured and compared to SUVmax of mediastinal blood pool...
June 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28623852/frusemide-aids-diagnostic-interpretation-of-68-ga-psma-positron-emission-tomography-ct-in-men-with-prostate-cancer
#2
Niall Fennessy, Jonathan Lee, Jane Shin, Bao Ho, Syed Aman Ali, Royce Paschkewitz, Louise Emmett
INTRODUCTION: (68) Ga-PSMA positron emission tomography-computed tomography (PET/CT) is useful for both staging and assessment of biochemical relapse in men with prostate cancer. Renal excretion of (68) Ga-PSMA can lead to difficulties in scan interpretation, particularly in the pelvis. We evaluated if intravenous Frusemide at the time of (68) Ga-PSMA injection reduces excreted activity artefact and improves diagnostic certainty. METHODS: Sixty-two men with prostate cancer undergoing clinically indicated (68) Ga-PSMA PET/CT were prospectively included, 30 men receiving Frusemide at the time of radiotracer injection...
June 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28623847/toxicity-after-post-prostatectomy-image-guided-intensity-modulated-radiotherapy-using-australian-guidelines
#3
Stephen Chin, Noel J Aherne, Andrew Last, Hassan Assareh, Thomas P Shakespeare
INTRODUCTION: We evaluated single institution toxicity outcomes after post-prostatectomy radiotherapy (PPRT) via image-guided intensity-modulated radiation therapy (IG-IMRT) with implanted fiducial markers following national eviQ guidelines, for which late toxicity outcomes have not been published. METHODS: Prospectively collected toxicity data were retrospectively reviewed for 293 men who underwent 64-66 Gy IG-IMRT to the prostate bed between 2007 and 2015. RESULTS: Median follow-up after PPRT was 39 months...
June 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28608503/acute-radiation-oesophagitis-associated-with-2-deoxy-2-18f-fluoro-d-glucose-uptake-on-positron-emission-tomography-ct-during-chemo-radiation-therapy-in-patients-with-non-small-cell-lung-cancer
#4
Sarah Everitt, Jason Callahan, Eman Obeid, Rodney J Hicks, Michael Mac Manus, David Ball
INTRODUCTION: Acute radiation oesophagitis (ARO) is frequently experienced by patients receiving concurrent chemo-radiation therapy (cCRT) for non-small-cell lung cancer (NSCLC). We investigated ARO symptoms (CTCAE v3.0), radiation dose and oesophageal FDG PET/CT uptake. METHOD: Candidates received cCRT (60 Gy, 2 Gy/fx) and sequential FDG PET/CT (baseline FDG0 , FDGwk2 and FDGwk4 ). Mean and maximum standardized uptake value (SUVmean and SUVmax) and radiation dose (Omean and Omax ) were calculated within the whole oesophagus and seven sub-regions (5-60 Gy)...
June 13, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28600853/mixed-methods-study-on-the-use-of-and-attitudes-towards-safety-checklists-in-interventional-radiology
#5
Zachary Munn, Kristy Giles, Edoardo Aromataris, Anita Deakin, Timothy Schultz, Catherine Mandel, Micah Dj Peters, Guy Maddern, Alan Pearson, William Runciman
INTRODUCTION: The use of safety checklists in interventional radiology is an intervention aimed at reducing mortality and morbidity. Currently there is little known about their practical use in Australian radiology departments. The primary aim of this mixed methods study was to evaluate how safety checklists (SC) are used and completed in radiology departments within Australian hospitals, and attitudes towards their use as described by Australian radiologists. METHODS: A mixed methods approach employing both quantitative and qualitative techniques was used for this study...
June 10, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28585398/genetic-status-determines-18-f-fdg-uptake-in-pheochromocytoma-paraganglioma
#6
Ankita Tiwari, Nalini Shah, Vijaya Sarathi, Gaurav Malhotra, Ganesh Bakshi, Gagan Prakash, Kranti Khadilkar, Reshma Pandit, Anurag Lila, Tushar Bandgar
INTRODUCTION: Although few studies have demonstrated utility of (18) F- fluoro-2-deoxy-d-glucose positron emission tomography/computerised tomography ((18) F-FDG PET/CT) in benign pheochromocytoma/paragangliomas (PCC/PGLs), there limited data on factors predicting the FDG uptake in PCC/PGL. METHODS: The study was conducted at a tertiary health care centre. In addition to the routine investigations, all patients (n = 96) with PCC/PGL were evaluated with (18) F-FDGPET/CT and majority (n = 78) underwent (131) I-metaiodobenzyl guanidine ((131) I-MIBG) scintigraphy...
June 5, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28581195/minimal-preparation-ct-a-literature-review-of-a-minimally-invasive-imaging-technique-for-colorectal-cancer-in-a-frail-aged-population
#7
REVIEW
Andrew D Csillag, Anna R Quirk, Michael V Chan, Lloyd J Ridley
Colorectal cancer (CRC) is a common malignancy with increased incidence in the elderly. When CRC is suspected, patients are typically evaluated with optical colonoscopy (OC) or CT Colonography (CTC). Unfortunately, in the frail and elderly patient, these investigations can be difficult to perform and are often not tolerated. Minimal preparation computed tomography (MPCT) is a CT technique to evaluate the colon. Although protocols vary, typically, no preparation is required apart from administration of oral contrast for faecal tagging...
June 5, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28581035/effective-doses-and-standardised-risk-factors-from-paediatric-diagnostic-medical-radiation-exposures-information-for-radiation-risk-communication
#8
Giovanni Bibbo
INTRODUCTION: In the paediatric medical radiation setting, there is no consistency on the radiation risk information conveyed to the consumer (patient/carer). Each communicator may convey different information about the level of risk for the same radiation procedure, leaving the consumer confused and frustrated. There is a need to standardise risks resulting from medical radiation exposures. In this study, paediatric radiographic, fluoroscopic, CT and nuclear medicine examination data have been analysed to provide (i) effective doses and radiation induced cancer risk factors from common radiological and nuclear medicine diagnostic procedures in standardised formats, (ii) awareness of the difficulties that may be encountered in communicating risks to the layperson, and (iii) an overview of the deleterious effects of ionising radiation so that the risk communicator can convey with confidence the risks resulting from medical radiation exposures...
June 5, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28557310/larynx-motion-considerations-in-partial-larynx-volumetric-modulated-arc-therapy-for-early-glottic-cancer
#9
Houda Bahig, Phuc Félix Nguyen-Tan, Édith Filion, David Roberge, Pensavan Thanomsack, Jacques de Guise, Danis Blais, Robert Doucet, Laurent Létourneau-Guillon, Louise Lambert
INTRODUCTION: To assess laryngeal motion in early glottic cancer in order to determine safe margins for partial larynx volumetric modulated arc therapy (PL-VMAT), and to quantify dosimetric advantages of PL-VMAT. METHODS: This prospective study included T1-2N0 glottic cancers treated with whole larynx VMAT (WL-VMAT). Pre- and mid-treatment 4D-computed tomography (4D-CT) and dynamic magnetic resonance imaging (MRI) allowed for assessment of larynx swallowing and respiratory motion...
May 30, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28517240/imaging-after-treatment-in-uterine-malignancies-spectrum-of-normal-findings-and-most-common-complications
#10
REVIEW
Maura Miccò, Anna Maria Telesca, Benedetta Gui, Pier Paolo Grimaldi, Francesco Cambi, Maria Giulia Marini, Anna Lia Valentini, Lorenzo Bonomo
Uterine malignancies account for the majority of gynaecologic cancers. Different treatment options are available depending on histology, disease grade and stage. Hysterectomy is the most frequent surgical procedure. Chemotherapy and radiation therapy (CRT) represents the preferred therapeutic choice for locally advanced uterine and cervical malignancies. Imaging of the female pelvis following these treatments is particularly challenging due to alteration of the normal anatomy. Radiologists should be familiar with both the expected post-treatment imaging findings and the imaging features of possible complications to make the correct interpretation and avoid possible pitfalls...
May 18, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28508466/comparison-of-the-time-taken-for-localised-breast-surgery-pre-and-post-introduction-of-intra-operative-digital-specimen-mammography
#11
Vinicius Carraro do Nascimento, Anita G Bourke
INTRODUCTION: More than half of the patients with an impalpable malignant breast lesion have a mammographically detected and imaged-guided localisation, which can be technically challenging for the breast surgeon. Specimen imaging is used to confirm successful excision of the localised index lesion and has improved the operating list efficiency resulting in a higher number of excisions per surgical list. The aim of this study was to evaluate whether introducing IDSM (intra-operative digital specimen mammography) saved operation time for localised breast surgery...
May 16, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28508462/role-of-diffusion-weighted-imaging-in-distinguishing-thoracoabdominal-neuroblastic-tumours-of-various-histological-types-and-differentiation-grades
#12
Yang Wen, Yun Peng, Xiao Min Duan, Nan Zhang
INTRODUCTION: Diffusion-weighted MR imaging (DWI) has demonstrated a great potential to help distinguish benign from malignant tumours in paediatric body. Our purpose is to evaluate whether DWI allow discrimination of thoracoabdominal neuroblastic tumours of various histological types and differentiation grades. METHODS: We retrospectively analysed DWI scans of the thoracoabdominal neuroblastic tumours in 25 children (11 girls, 14 boys). DWI was performed with two b-values of 0 and 800 s/mm(2) on a 3...
May 16, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28477339/dose-discrepancy-between-planning-system-estimation-and-measurement-in-spine-stereotactic-body-radiation-therapy-a-case-report
#13
Sankar Arumugam, Megan Berry, Cesar Ochoa, Aitang Xing, Bradley Beeksma, Philip Vial
Stereotactic body radiation therapy (SBRT) to treat spinal metastases has shown excellent clinical outcomes for local control. High dose gradients wrapping around spinal cord make this treatment technically challenging. In this work, we present a spine SBRT case where a dosimetric error was identified during pre-treatment dosimetric quality assurance (QA). A patient with metastasis in T7 vertebral body consented to undergo SBRT. A dual arc volumetric modulated arc therapy plan was generated on the Pinnacle treatment planning system (TPS) with a 6 MV Elekta machine using gantry control point spacing of 4°...
May 6, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28470944/patterns-of-practice-survey-for-brachytherapy-for-cervix-cancer-in-australia-and-new-zealand
#14
Karen Lim, Sylvia van Dyk, Pearly Khaw, Jacqueline Veera, Linda Mileshkin, Lucy Ohanessian, Michelle Harrison, Shalini K Vinod
INTRODUCTION: The purpose of this survey was to explore the current patterns of practice for brachytherapy in cervix cancer in Australia and New Zealand. The survey was also intended to explore clinician attitudes towards image-guided adaptive brachytherapy (IGABT) and identify barriers to the implementation of IGABT. METHODS: Electronic surveys were sent to all radiotherapy centres in Australia and New Zealand under collaboration with Australia New Zealand Gynaecology and Oncology Group (ANZGOG), in order to identify patterns of radiotherapy practice...
May 4, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28466967/anatomical-variations-of-the-renal-arterial-vasculature-an-australian-perspective
#15
Daniel T Tardo, Christopher Briggs, Gerard Ahern, Alexander Pitman, Sankar Sinha
INTRODUCTION: Variations of the renal arteries have been studied and published across various population groups, but similar information for the ethnically diverse nation of Australia is lacking. This study describes the pattern of renal artery anomalies in a section of the Australian population based on computed tomography (CT) angiograms of the abdomen and cadaveric dissection. METHODS: The renal arterial vasculature of 594 kidneys from 300 subjects (28 cadavers, 272 CT) was studied...
May 3, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28464541/accuracy-of-dual-bolus-single-acquisition-computed-tomography-in-the-diagnosis-and-grading-of-adult-traumatic-splenic-parenchymal-and-vascular-injury
#16
Paul Marovic, Paul Anthony Beech, Jim Koukounaras, Helen Kavnoudias, Gerard S Goh
INTRODUCTION: Dual Bolus Single Acquisition Computed Tomography (DBSA-CT) has been advocated for use in trauma imaging through its ability to concurrently optimise abdominal arterial and visceral parenchymal enhancement while minimising scan times and radiation dose. However, concerns have been raised regarding excessive splenic parenchymal heterogeneity using this technique. The purpose of this study is to establish and compare the accuracy of DBSA-CT to traditional sequential multiphase scanning techniques in the diagnosis and grading of traumatic adult splenic injury...
May 2, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432758/specificity-and-sensitivity-of-magnetic-resonance-imaging-findings-in-the-diagnosis-of-progressive-supranuclear-palsy
#17
REVIEW
Stephen Bacchi, Ivana Chim, Sandy Patel
Progressive supranuclear palsy (PSP) is a neurodegenerative condition that can only be diagnosed conclusively on pathological examination. Currently, the diagnosis is based upon the National Institute of Neurological Disorders and Stroke and the Society for PSP criteria. These criteria consist of purely clinical findings. Elements of brain MRI that are being investigated for this role include identifying structural features on conventional MRI, volume changes, signal abnormalities and diffusion changes. The aim of this study is to conduct a systematic search to identify which MRI findings have evidence to support their sensitivity/specificity/accuracy in the diagnosis of PSP...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432731/association-between-progressive-hepatic-morphology-changes-on-serial-mr-imaging-and-clinical-outcome-in-primary-sclerosing-cholangitis
#18
Yu Xuan Kitzing, Siobhan A Whitley, Sara S Upponi, Brijesh Srivastava, Graeme Jm Alexander, David J Lomas
INTRODUCTION: Hepatic morphology changes are well described in Primary Sclerosing Cholangitis and characterised by a combination of atrophy and hypertrophy changes. This study investigates the relationship between progression of these changes over time and clinical outcome in patients with PSC. METHODS: Fifty-three patients with PSC (mean age 44, 28 males and 25 females) who underwent serial MRI liver studies at least one year apart were identified. The first and the last MRI studies were selected for the retrospective analysis...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432730/assessment-of-voluntary-deep-inspiration-breath-hold-with-cine-imaging-for-breast-radiotherapy
#19
Reuben Patrick Estoesta, Lani Attwood, Diana Naehrig, Elizabeth Claridge-Mackonis, David Odgers, Darren Martin, Melissa Pham, Joanne Toohey, Susan Carroll
Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28419756/posterior-ankle-labral-changes-at-mri-a-preliminary-study
#20
Nasir Khan, Navdeep Sahota, Michael L Shepel, Haron Obaid
INTRODUCTION: The transverse ligament in the ankle joint has been described as a labrum-like structure in a previous cadaveric study. The purpose of this study is to assess the spectrum of abnormal changes related to this structure on imaging/MRI, and correlate these findings with other ankle joint findings and patient symptoms. METHOD: A retrospective observational review of 172 ankle MRI scans was carried out independently by two fellowship trained musculoskeletal Radiologists...
April 17, 2017: Journal of Medical Imaging and Radiation Oncology
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