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Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes

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https://read.qxmd.com/read/30772107/an-environmental-scan-of-the-national-and-provincial-diagnostic-reference-levels-in-canada-for-common-adult-computed-tomography-scans
#1
REVIEW
Michelle Linda Ferderbar, Thomas E Doyle, Reza Samavi, David Koff
Several regulatory bodies have agreed that low-dose radiation used in medical imaging is a weak carcinogen that follows a linear, non-threshold model of cancer risk. While avoiding radiation is the best course of action to mitigate risk, computed tomography (CT) scans are often critical for diagnosis. In addition to the as low as reasonably achievable principle, a more concrete method of dose reduction for common CT imaging exams is the use of a diagnostic reference level (DRL). This paper examines Canada's national DRL values from the recent CT survey and compares it to published provincial DRLs as well as the DRLs in the United Kingdom and the United States of America for the 3 most common CT exams: head, chest, and abdomen/pelvis...
February 13, 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30635216/imaging-of-post-transthoracic-needle-biopsy-complications
#2
REVIEW
Jean-Philippe Dubé, Ziad Azzi, Alexandre Semionov, Karl Sayegh, John Kosiuk, Josephine Pressacco
When faced with characterization of a suspicious lung lesion, transthoracic needle biopsy (TTNB) is the standard technique used to retrieve a pathological specimen. Usual complications reported for this intervention are pneumothorax, hemorrhage, air embolism, and tumor seeding. This pictorial essay illustrates imaging of these complications.
January 8, 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30600125/retrievable-inferior-vena-cava-filters-a-tertiary-centre-perspective-and-quality-assurance-study
#3
Ramin Hamidizadeh, David Liu, Faisal Khosa, John Chung, Darren Klass, Behrang Homayoon
PURPOSE: To conduct a retrospective review and quality assurance study of inferior vena cava (IVC) filter retrieval over a two-year period at a tertiary care centre. METHODS: Patients who underwent IVC filter placement or retrieval over a two-year period were identified. Medical records were reviewed for patient characteristics, filter indication, time to filter retrieval, and complications. RESULTS: IVC filters were placed in 229 patients between January 1, 2015 and December 31, 2016...
December 29, 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30600124/effect-of-patient-characteristics-on-vessel-enhancement-in-pediatric-chest-computed-tomography-angiography
#4
Takanori Masuda, Takeshi Nakaura, Yoshinori Funama, Tomoyasu Sato, Tetsuya Nitta, Toru Higaki, Yasutaka Baba, Yoriaki Matsumoto, Naoyuki Imada, Kazuo Awai
INTRODUCTION: To evaluate the effect of sex, age, height, cardiac output (CO), total body weight (TBW), body surface area (BSA), and lean body weight (LBW) on vessel enhancement of the ascending aorta in pediatric chest computed tomography angiography (c-CTA). MATERIALS AND METHODS: This retrospective study received institutional review board approval; parental prior informed consent for inclusion was obtained for all patients. All 50 patients were examined using our routine protocol; iodine (600 mg/kg) was the contrast medium (CM)...
December 29, 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691569/the-efficacy-of-computed-tomography-guided-percutaneous-spine-biopsies-in-determining-a-causative-organism-in-cases-of-suspected-infection-a-systematic-review
#5
REVIEW
Madeleine Sertic, Leighanne Parkes, Sabrina Mattiassi, Kenneth Pritzker, Michael Gardam, Kieran Murphy
PURPOSE: In suspected spondylodiscitis and vertebral osteomyelitis, computed tomography (CT)-guided biopsies are often performed to determine a causative organism and guide antimicrobial therapy. The aim of this study is to determine the diagnostic culture yield of CT-guided biopsies performed in cases of suspected spinal infections. METHODS: A literature search of PubMed and MEDLINE up to April 2017 was performed for keywords "CT guided vertebral biopsy infection," "CT-guided spine biopsy infection," "CT guided spine biopsy yield," and "CT guided vertebral biopsy yield...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691568/applicability-of-magnetic-resonance-imaging-in-the-assessment-of-fetal-urinary-tract-malformations
#6
Tatiana Mendonça Fazecas, Edward Araujo Júnior, Heron Werner, Pedro Daltro, Alberto Borges Peixoto, Glaucia Macedo Lima, Adauto Dutra Barbosa
OBJECTIVE: To assess the applicability of magnetic resonance imaging (MRI) to complement ultrasound in the diagnosis of fetal urinary tract anomalies. METHODS: This was a retrospective cohort study that included 41 women between 19 weeks and 37 weeks and 6 days of gestation carrying fetuses with malformations of the urinary tract which were initially diagnosed by ultrasound and then referred for MRI. In all cases, the diagnosis was confirmed after birth either through imaging or autopsy...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691567/imaging-based-3-dimensional-printing-for-improved-maxillofacial-presurgical-planning-a-single-center-case-series
#7
Will Guest, Diana Forbes, Colin Schlosser, Stephen Yip, Robin Coope, Jason Chew
PURPOSE: 3-D printing is an increasingly widespread technology that allows physical models to be constructed based on cross-sectional medical imaging data. We sought to develop a pipeline for production of 3-dimensional (3-D) models for presurgical planning and assess the value of these models for surgeons and patients. METHODS: In this institutional review board-approved, single-center case series, participating surgeons identified cases for 3-D model printing, and after obtaining patient consent, a 3-D model was produced for each of the 7 participating patients based on preoperative cross-sectional imaging...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691566/retrospective-application-of-the-2015-american-thyroid-association-guidelines-for-ultrasound-classification-biopsy-indications-and-follow-up-imaging-of-thyroid-nodules-can-improved-reporting-decrease-testing
#8
Manijeh Mohammadi, Carrie Betel, Kirsteen Rennie Burton, Kevin McLughlin Higgins, Zeina Ghorab, Ilana Jaye Halperin
INTRODUCTION: Thyroid ultrasound has been widely used to determine which nodules need further investigation. The goal of this study is to determine if using an ultrasonographic features checklist based on 2015 American Thyroid Association (ATA) guidelines can improve reporting and decrease unnecessary further testing. METHODS: In this retrospective study, ultrasonographic images of all nodules biopsied at our institution in 2014 and 2015 were reviewed by radiologists blinded to fine needle aspiration (FNA) biopsy result using a checklist...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691565/follow-up-of-benign-thyroid-nodules-can-we-do-less
#9
Manijeh Mohammadi, Carrie Betel, Kirsteen Rennie Burton, Kevin McLughlin Higgins, Zeina Ghorab, Ilana Jaye Halperin
OBJECTIVE: To determine the incidence of malignancy, follow-up ultrasound (US), and repeat fine needle aspiration (FNA) in thyroid nodules that have been previously biopsied as benign. METHODS: This is a retrospective, descriptive study of benign thyroid nodules evaluated by US between 2010-2011. We determined the frequency of follow-up ultrasounds and FNAs, mean years of follow-up, interval between follow-up US, change in nodule size, reasons for repeat FNA (rFNA), frequency of thyroidectomy, and thyroid malignancy during 5 years of follow-up...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691564/imaging-of-gastrointestinal-and-abdominal-emergencies-in-binge-drinking
#10
REVIEW
Trishna R Shimpi, Sumer N Shikhare, Raymond Chung, Peng Wu, Wilfred C G Peh
Excess alcohol consumption is a leading cause of preventable morbidity and mortality globally. The pattern of consumption of alcoholic beverages has changed in our society in the recent past, with binge drinking becoming more and more common, especially among young adults. Abdominal pain following alcohol consumption can be secondary to a wide range of pathologies, the treatment algorithm of which can range from medical supportive treatment to more invasive life-saving procedures such as transarterial embolization and emergency laparotomy...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691563/computer-vision-syndrome-darkness-under-the-shadow-of-light
#11
REVIEW
Ashish Chawla, Tze Chwan Lim, Sumer N Shikhare, Peter L Munk, Wilfred C G Peh
Radiologists typically spend long hours staring at the computer monitor. This unavoidable nature of our work can lead to detrimental effects on the eyes. Moreover, there is little awareness among radiologists with regards to such potential harm. Ocular hazards, such as computer vision syndrome, are increasingly becoming more relevant to the radiology community. In this article, we discuss the ocular occupational hazards faced by radiologists and suggestions that may help in minimizing such hazards.
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691562/interobserver-variation-of-colonic-polyp-measurement-at-computed-tomography-colonography
#12
Gurjeet Dulku, Chandra Hewavitharana, Tonya Halliday, Duncan Ramsay, Richard Ho, Michael Phillips, Richard Mendelson
BACKGROUND: The concept of "advanced polyps" is well accepted and is defined as polyps ≥10 mm and/or those having a villous component and/or demonstrating areas of dysplasia. Of these parameters, computed tomography colonography (CTC) can only document size. The accepted management of CTC-detected "advanced polyps" is to recommend excision if feasible, whereas the management of "intermediate" (6-9 mm) polyps is more controversial, and interval surveillance may be acceptable...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691561/spine-intervention-an-update-on-injectable-biomaterials
#13
REVIEW
Nureddin Ashammakhi, Olivier Clerk-Lamalice, Gamal Baroud, Mohammad Ali Darabi, Bassem Georgy, Douglas Beall, Derrick Wagoner
Back pain is the second most common reason for primary-care physician visits after the common cold. New understanding of the spine pathophysiology and biomechanics led to the development of novel injectable biomaterials to treat those pain generators. Although not all biomaterials are currently ready for common use, there is significant interest by the medical community to invest time, resources, and energy to optimize these injectables. This review introduces basic concepts and advancements in the field of bioinjectables tailored for the vertebral body...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691560/diagnostic-imaging-referral-guidelines-where-are-we-now
#14
REVIEW
Martin H Reed
No abstract text is available yet for this article.
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691559/musculoskeletal-corticosteroid-administration-current-concepts
#15
REVIEW
Amit Shah, Davina Mak, A Mark Davies, S L James, Rajesh Botchu
Numerous corticosteroid preparations are available, but the type and dose administered is frequently at the discretion of the clinician. This is often based on anecdotal evidence and experience rather than formal clinical guidelines. In order to better understand current practice, we anonymously surveyed 100 members of the British Society of Skeletal Radiologists. The results of the survey demonstrated the arbitrary use of all types of steroid preparation at different anatomical locations. In this article, we review the commonly used corticosteroids and propose a guideline to help practitioners decide on the type and dose of steroid depending on the treatment location...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691558/acute-aortic-syndrome-yield-of-computed-tomography-angiography-in-patients-with-acute-chest-pain
#16
Jane Meng, Vincent M Mellnick, Sandra Monteiro, Michael N Patlas
No abstract text is available yet for this article.
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691557/retrospective-analysis-of-emergency-computed-tomography-imaging-utilization-at-an-academic-centre-an-analysis-of-clinical-indications-and-outcomes
#17
Jason Seidel, Mary Beth Bissell, Sannihita Vatturi, Angus Hartery
PURPOSE: To explore resource utilization through evaluation of computed tomography (CT) imaging trends in the emergency department by examining common indications/outcomes for imaging in this setting. METHODS: A retrospective analysis of clinical indications/outcomes for all CT imaging in 3 emergency departments over a 1-year period was conducted. Scans were divided by body part and the most common indications for each type of scan were determined. Clinical outcomes from each study were extracted from final interpretations by the reporting radiologist...
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691556/artificial-intelligence-radiology-and-the-way-forward
#18
Sabeena Jalal, Savvas Nicolaou, William Parker
No abstract text is available yet for this article.
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30691555/reflections-on-editorship-10-years-at-the-helm-of-the-carj
#19
EDITORIAL
Peter L Munk
No abstract text is available yet for this article.
February 2019: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://read.qxmd.com/read/30390964/the-common-among-the-rare-a-pictorial-essay-of-the-most-common-diffuse-lung-diseases-in-children
#20
REVIEW
Angeliki Pastroma, Georgia Papaioannou, Maria Raissaki, Efthymia Alexopoulou
No abstract text is available yet for this article.
November 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
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