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    2077 results match your criteria Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes[Journal]

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    Financial Impact of PEVAR Compared with Standard Endovascular Repair in Canadian Hospitals.
    Can Assoc Radiol J 2018 Jan 23. Epub 2018 Jan 23.
    Division of Vascular and Interventional Radiology, Toronto General Hospital, Toronto, Ontario, Canada.
    Objectives: The percutaneous endovascular abdominal aortic repair (PEVAR) approach is a minimally invasive technique that has demonstrated clinical benefit over traditional surgical cut down associated with standard endovascular abdominal aortic aneurysm (AAA) repair (EVAR). The objective of our study was to evaluate the budget impact to a Canadian hospital of changing the technique for AAA repair from the EVAR approach to the PEVAR approach.

    Methods: We examined the budget impact of replacing the EVAR approach with the PEVAR approach in a Canadian hospital that performs 100 endovascular AAA repairs annually. Read More

    Laparoscopic Sleeve Gastrectomy: A Radiological Guide to Common Postsurgical Failure.
    Can Assoc Radiol J 2018 Jan 27. Epub 2018 Jan 27.
    Department of Radiology, McGill University Health Center, McGill University, Montreal, Quebec, Canada.
    Laparoscopic sleeve gastrectomy is one of the most common bariatric procedures worldwide. It has recently gained in popularity because of a low complication rate, satisfactory resolution of comorbidities, and excellent weight loss outcome. This article reviews the surgical technique, expected postsurgical imaging appearance, and imaging findings of common complications after laparoscopic sleeve gastrectomy. Read More

    Staging Computed Tomography in Patients With Noncurative Laparotomy for Periampullary Cancer: Does Nonstructured Reporting Adequately Communicate Resectability?
    Can Assoc Radiol J 2017 Dec 7. Epub 2017 Dec 7.
    Department of Radiology, London Health Sciences Centre, London, Ontario, Canada; Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada.

    A Day in the Life of MRI: The Variety and Appropriateness of Exams Being Performed in Canada.
    Can Assoc Radiol J 2017 Nov 30. Epub 2017 Nov 30.
    Department of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
    Purpose: This study aimed to determine the volumes and types of magnetic resonance imaging exams being performed across Canada, common indications for the exams, and exam appropriateness using multiple evaluation tools.

    Methods: Thirteen academic medical institutions across Canada participated. Data were obtained relating to a single common day, October 1, 2014. Read More

    Comparison of General Anesthesia and Conscious Sedation During Computed Tomography-Guided Radiofrequency Ablation of T1a Renal Cell Carcinoma.
    Can Assoc Radiol J 2017 Nov 30. Epub 2017 Nov 30.
    Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
    Purpose: Percutaneous radiofrequency ablation is so painful that this treatment requires pain control such as conscious sedation or general anesthesia. It is still unclear which type of anesthesia is better for treatment outcomes of renal cell carcinoma. This study aimed to compare general anesthesia and conscious sedation in treating patients with renal cell carcinoma with radiofrequency ablation. Read More

    Informed Consent for Radiation in Interventional Radiology Procedures.
    Can Assoc Radiol J 2017 Nov 29. Epub 2017 Nov 29.
    Victoria Hospital, London Health Sciences Centre, Department of Medical Imaging, Western University, London, Ontario, Canada.
    Purpose: To explore the patient perception on radiation-related cancer risk from interventional radiology (IR) procedures and whether informed radiation consent is warranted.

    Methods: A multiple-choice survey was prospectively administered to 68 adults undergoing a body or neuro-IR procedure with ionizing radiation exposure. Subgroup analysis with chi-square or Fisher exact test was performed based on patient past IR history (P < . Read More

    What Is the Role of the Bacterium Propionibacterium acnes in Type 1 Modic Changes? A Review of the Literature.
    Can Assoc Radiol J 2017 Nov 3;68(4):419-424. Epub 2017 Oct 3.
    Joint Department of Medical Imaging, University Health Network, Toronto, Ontario, Canada.
    This review presents a summary of the pathology and epidemiology of Modic changes and the possible role of Propionibacterium acnes. This information is followed by a synthesis of the most recent clinical research involved in culturing the discs of patients with degenerative disc disease for the presence of bacteria. We also discuss a randomized controlled trial that investigates the effects of antibiotics on patients with chronic low back pain and type 1 Modic changes. Read More

    Variable Appearances of Ductal Carcinoma In Situ Calcifications on Digital Mammography, Synthesized Mammography, and Tomosynthesis: A Pictorial Essay.
    Can Assoc Radiol J 2017 Sep 22. Epub 2017 Sep 22.
    Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
    This pictorial essay demonstrates the variable appearances of ductal carcinoma in situ on full-field digital mammography, synthesized mammography, and digital breast tomosynthesis. The spectrum of intercase and intracase variability suggests further refinement of reconstruction algorithms for synthesized mammography may be necessary to maximize early detection of ductal carcinoma in situ. Read More

    Comparative Evaluation of Iodine-125 Radioactive Seed Localization and Wire Localization for Resection of Breast Lesions.
    Can Assoc Radiol J 2017 Nov 15;68(4):447-455. Epub 2017 Sep 15.
    Breast Imaging Center, Department of Radiology, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada. Electronic address:
    Purpose: Radioactive seed localization (RSL) uses a titanium seed labeled with iodine-125 energy for surgery of nonpalpable breast lesions. RSL facilitates radiology-surgery scheduling and allows for improved oncoplasty compared with wire localization (WL). The purpose of this work was to compare the 2 techniques. Read More

    Antithrombotic Use Predicts Recanalization of Embolized Pulmonary Arteriovenous Malformations in Hereditary Hemorrhagic Telangiectasia.
    Can Assoc Radiol J 2017 11 15;68(4):463-467. Epub 2017 Sep 15.
    Department of Radiology, St Michael's Hospital, Toronto, Ontario, Canada; Keenan Research Centre of the Li Ka Shing Knowledge Institute and St Michaels Hospital, Toronto, Ontario, Canada; Department of Medical Imaging, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

    Magnetic Resonance Signal Abnormalities Within the Pericruciate Fat Pad: A Possible Secondary Sign for Acute Anterior Cruciate Ligament Tears.
    Can Assoc Radiol J 2017 Nov 6;68(4):438-444. Epub 2017 Sep 6.
    Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy. Electronic address:
    Purpose: The study sought to investigate the presence of magnetic resonance (MR) signal alterations within the pericruciate fat pad in patients with an acute anterior cruciate ligament (ACL) tear as well as evaluate its diagnostic value in comparison with the main secondary signs of ACL tears.

    Methods: Two musculoskeletal radiologists retrospectively reviewed knee MR examinations performed from May to October 2015. The ACL was considered as torn or intact based on either previous arthroscopic findings or unequivocal MR imaging interpretation if arthroscopic correlation was unavailable. Read More

    Imaging of Ankle Impingement Syndromes.
    Can Assoc Radiol J 2017 Nov 31;68(4):431-437. Epub 2017 Aug 31.
    Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Republic of Singapore. Electronic address:
    Ankle impingement syndromes are a commonly encountered clinical entity seen in athletes, secondary to repetitive forceful microtrauma. Symptoms are related to impingement of osseous or soft tissue abnormalities in the ankle joint, in particular the tibiotalar joint, which may result in painful limitation of ankle movements. Imaging modalities, such as radiographs and magnetic resonance imaging, are very useful in diagnosing osseous and soft tissue abnormalities seen in different types of ankle impingement syndromes. Read More

    The Positive Outcome of MRI-Guided Vacuum Assisted Core Needle Breast Biopsies Is Not Influenced by a Prior Negative Targeted Second-Look Ultrasound.
    Can Assoc Radiol J 2017 Nov 21;68(4):401-408. Epub 2017 Aug 21.
    Cedar Breast Clinic, McGill University Health Center, Royal Victoria Hospital, Montréal, Québec, Canada; Département d'imagerie médicale, Centre République, Clermont-Ferrand, France. Electronic address:
    Purpose: The study sought to investigate the outcome of breast magnetic resonance-guided biopsies as a function of the indication for magnetic resonance imaging (MRI), the MRI features of the lesions, and the performance or not of a targeted second-look ultrasound (SLUS) prior breast MRI-guided biopsy.

    Methods: We identified 158 women with MRI-detected breast lesions scheduled for MRI-guided biopsy (2007-2013). Patient demographics, performance of targeted SLUS, imaging characteristics, and subsequent pathology results were reviewed. Read More

    Risk Stratification in Multinodular Goiter: A Retrospective Review of Sonographic Features, Histopathological Results, and Cancer Risk.
    Can Assoc Radiol J 2017 Nov 21;68(4):425-430. Epub 2017 Aug 21.
    Department of Radiology, Adelaide Meath Incorporating the National Children's Hospital, Tallaght, Ireland.
    Purpose: In the management of thyroid nodules, although the potential for malignancy exists, there is also the potential for overtreatment of subclinical disease. Although the TI-RADS (Thyroid Imaging-Reporting and Data System) system outlines a risk stratification score based on suspicious ultrasound findings, it has not been universally accepted. Many TI-RADS 2 or 3 patients proceed to fine needle aspiration biopsy (FNAB), potentially unnecessarily. Read More

    Utility of Magnetic Resonance Imaging for the Diagnosis of Appendicitis During Pregnancy: A Canadian Experience.
    Can Assoc Radiol J 2017 Nov 18;68(4):392-400. Epub 2017 Jul 18.
    Department of Surgery, St Paul's Hospital & University of British Columbia, Vancouver, British Columbia, Canada.
    Purpose: The objective of the study was to evaluate the performance of magnetic resonance imaging (MRI) for the diagnosis of appendicitis during pregnancy.

    Methods: We conducted a retrospective review of all MRI scans performed at our institution, between 2006 and 2012, for the evaluation of suspected appendicitis in pregnant women. Details of the MRI scans performed were obtained from the radiology information system as well as details of any ultrasounds carried out for the same indication. Read More

    Assessment of Cirrhotic Liver Enhancement With Multiphasic Computed Tomography Using a Faster Injection Rate, Late Arterial Phase, and Weight-Based Contrast Dosing.
    Can Assoc Radiol J 2017 Nov 15;68(4):371-378. Epub 2017 Jul 15.
    Department of Diagnostic Radiology, QE II Health Sciences Centre, Dalhousie University, Halifax, Nova Scotia, Canada. Electronic address:
    Purpose: This study aimed to update our liver computed tomography (CT) protocol according to published guidelines, and to quantitatively evaluate the effect of these modifications.

    Methods: The modified liver CT protocol employed a faster injection rate (5 vs 3 mL/s), later arterial phase (20-second vs 10-second postbolus trigger), and weight-based dosing of iodinated contrast (1.7 mL/kg vs 100 mL fixed dose). Read More

    Global Health Imaging in Radiology Residency: A Survey of Canadian Radiology Residents.
    Can Assoc Radiol J 2017 Nov 15;68(4):348-356. Epub 2017 Jul 15.
    Department of Medical Imaging, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada; London Health Sciences Centre, Victoria Hospital, London, Ontario, Canada.
    Purpose: The study sought to determine Canadian radiology resident perception of and interest in global health imaging (GHI) and the barriers they encounter in pursuing GHI experiences during residency training.

    Methods: A peer-reviewed, online, anonymous, multiple-choice survey was distributed to Canadian radiology residents at English-language programs.

    Results: Fifty residents responded to the survey (∼16% response rate); 72% of respondents perceived an unmet need for medical imaging in the developing world. Read More

    Multiparametric Magnetic Resonance Imaging of the Prostate for Tumour Detection and Local Staging: Imaging in 1.5T and Histopathologic Correlation.
    Can Assoc Radiol J 2017 Nov 15;68(4):379-386. Epub 2017 Jul 15.
    Second Department of Radiology, General University Hospital Attikon, Haidari, Athens, Greece.
    Purpose: The study sought to prospectively evaluate which technique among T2-weighted images, dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI), diffusion-weighted (DW) MRI, or a combination of the 2, is best suited for prostate cancer detection and local staging.

    Methods: Twenty-seven consecutive patients with biopsy-proven adenocarcinoma of the prostate underwent MRI on a 1.5T scanner with a surface phased-array coil prior radical prostatectomy. Read More

    Vascular Compression of the Anterior Optic Pathway: A Rare Occurrence?
    Can Assoc Radiol J 2017 Nov 15;68(4):409-413. Epub 2017 Jul 15.
    Department of Neurological Surgery, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan.
    Background: Vascular compression of the anterior optic pathway has been documented as an infrequent cause of visual impairments. Here we characterize such vascular compression using magnetic resonance imaging.

    Methods: A total of 183 patients without pathologies affecting the optic pathways underwent T2-weighted or constructive interference steady-state sequence magnetic resonance imaging. Read More

    Congenital Anomalies of the Superior Vena Cava: Embryological Correlation, Imaging Perspectives, and Clinical Relevance.
    Can Assoc Radiol J 2017 Nov 14;68(4):456-462. Epub 2017 Jul 14.
    Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, Texas, USA. Electronic address:
    There is a wide spectrum of congenital anomalies of the superior vena cava, which are more increasingly recognized in cross-sectional imaging. Although some of these anomalies are asymptomatic, others have important clinical and interventional implications. Imaging modalities such as computed tomography and magnetic resonance imaging play an important role in the accurate characterization of these anomalies, which is essential for mapping prior to surgeries or interventions. Read More

    Managing Incidentalomas Safely: Do Computed Tomography Requisitions Tell Us What We Need to Know?
    Can Assoc Radiol J 2017 Nov 13;68(4):387-391. Epub 2017 Jul 13.
    Department of Diagnostic Radiology, Dalhousie University, Halifax, Nova Scotia, Canada. Electronic address:
    Purpose: Technological advancements and the ever-increasing use of computed tomography (CT) have greatly increased the detection of incidental findings, including tiny pulmonary nodules. The management of many "incidentalomas" is significantly influenced by a patient's history of cancer. The study aim is to determine if CT requisitions include prior history of malignancy. Read More

    A Pictorial Review of Hepatobiliary Magnetic Resonance Imaging With Hepatocyte-Specific Contrast Agents: Uses, Findings, and Pitfalls of Gadoxetate Disodium and Gadobenate Dimeglumine.
    Can Assoc Radiol J 2017 Aug 2;68(3):293-307. Epub 2017 Jun 2.
    Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
    Magnetic resonance imaging (MRI) has a well-established role as a highly specific and accurate modality for characterizing benign and malignant focal liver lesions. In particular, contrast-enhanced MRI using hepatocyte-specific contrast agents (HSCAs) improves lesion detection and characterization compared to other imaging modalities and MRI techniques. In this pictorial review, the mechanism of action of gadolinium-based MRI contrast agents, with a focus on HSCAs, is described. Read More

    Imaging Intra-abdominal Burkitt's Lymphoma: From Discrete Bowel Wall Thickening to Diffuse Soft Tissue Infiltration.
    Can Assoc Radiol J 2017 Aug 31;68(3):286-292. Epub 2017 May 31.
    Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
    Burkitt's lymphoma is a highly aggressive non-Hodgkin's B-cell lymphoma, which often presents with intra-abdominal involvement. The purpose of this pictorial review is to illustrate the various intra-abdominal imaging findings of Burkitt's lymphoma. Extranodal disease at presentation is common, including involvement of the bowel, stomach, pancreas, spleen, and mesentery. Read More

    Development of an Undergraduate Radiology Curriculum: Ten-Year Experience From the University of British Columbia.
    Can Assoc Radiol J 2017 Aug 26;68(3):237-242. Epub 2017 May 26.
    University of British Columbia, Vancouver, British Columbia, Canada; Department of Radiology, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada.

    Greening the Radiology Department: Not a Big Mountain to Climb.
    Can Assoc Radiol J 2017 Aug 11;68(3):234-236. Epub 2017 May 11.
    Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore.
    An environmental-friendly radiology department should be a requirement of the future era. The aim of this article is to make radiologists aware of their responsibilities for a greener world. We have suggested a number of minor but important changes in various sections of a radiology department that can make the radiology department more environmentally friendly. Read More

    Radiology Exposure in the Undergraduate Curriculum: A Medical Student Perspective on Quality and Opportunities for Positive Change.
    Can Assoc Radiol J 2017 Aug 11;68(3):249-256. Epub 2017 May 11.
    Department of Medical Imaging, London Health Sciences Centre, Victoria Hospital, London, Ontario, Canada.
    Purpose: This article is a continuation of a qualitative study designed to explore how radiology exposures can impact medical student opinions and perceptions of radiology and radiologists. We focused on: 1) conducting a radiology exposure inventory from the perspective of the medical student; 2) student evaluation of the quality of the radiology exposures and suggestions for positive change; and 3) development of a framework to address the needs of medical students as it relates to radiology education in the undergraduate medical curriculum.

    Methods: Research methodology and design for this qualitative study were described in detail in a previous article by Visscher et al [1]. Read More

    Early Radiographic and Tomographic Manifestations of Legionnaires' Disease.
    Can Assoc Radiol J 2017 Aug 4;68(3):328-333. Epub 2017 May 4.
    Centre de recherche, Centre de pneumologie, Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Québec City, Québec, Canada. Electronic address:
    Purpose: Legionnaires' disease (LD) may occur sporadically or in the course of outbreaks, where the typical radiological manifestations of the disease may better be delineated. We took advantage of a rare community-based epidemic of LD (181 patients) that occurred in 2012 in Quebec City, Canada, to describe the radiographic features of LD and compare the its tomographic presentation with that of community-acquired pneumonia caused by common bacteria other than Legionella pneumophila.

    Methods: From the 181 individuals affected in the outbreak, we obtained the chest radiographs of 159 individuals (mean 63 ± 15 years of age) for detailed analysis; 33 patients had a computed tomography (CT) scan performed during the course of their illness. Read More

    Fungal Rhinosinusitis: A Radiological Review With Intraoperative Correlation.
    Can Assoc Radiol J 2017 May;68(2):178-186
    Neuroradiology, University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
    The interaction between fungi and the sinonasal tract results in a range of clinical presentations with a broad spectrum of clinical severity. The most commonly accepted classification system divides fungal rhinosinusitis into invasive and noninvasive subtypes based on histopathological evidence of tissue invasion by fungi. Invasive fungal rhinosinusitis is subdivided into acute invasive and chronic invasive categories. Read More

    Intradiscal OO: Rationale, Injection Technique, Short- and Long-term Outcomes for the Treatment of Low Back Pain Due to Disc Herniation.
    Can Assoc Radiol J 2017 May;68(2):171-177
    Neuroradiology Department, Cardarelli Hospital, Naples, Italy.
    The management of low back pain should always start with a conservative approach; however, when it fails, intervention is required and at that moment the most appropriate choice remains unclear. Before invasive surgery, minimally invasive techniques can be adopted. In European trials and in a trans-Canadian clinical trial 03 ozone has been used successfully. Read More

    Disinfection of the Radiologist Workstation and Radiologist Hand Hygiene: A Single Institution Practice Quality Improvement Project.
    Can Assoc Radiol J 2017 Aug 7;68(3):270-275. Epub 2017 Apr 7.
    Department of Medical Imaging, the Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada.
    Purpose: The purpose of this study was to evaluate the workstation disinfection rates and hand hygiene of radiologists and trainees at shared departmental workstations and assess the impact of education and reminder placards on daily habits.

    Methods: A 10-question survey was administered to all staff radiologists, fellows, and residents at our institution. The questions pertained to workstation disinfection, hand hygiene habits, and accessibility to disinfectant wipes and hand sanitizer stations. Read More

    Transradial Access for Interventional Radiology: Single-Centre Procedural and Clinical Outcome Analysis.
    Can Assoc Radiol J 2017 Aug 7;68(3):318-327. Epub 2017 Apr 7.
    Department of Interventional Radiology, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada. Electronic address:
    Purpose: The study sought to describe a single centre's technical approach to transradial intervention and report on clinical outcomes and safety.

    Methods: A total of 749 transradial access (TRA) procedures were performed at a single hospital in 562 patients (174 women and 388 men). Procedures included 445 bland embolizations or chemoembolizations of the liver, 88 uterine artery embolizations, and 148 procedures for Selective Internal Radiation Therapy (Y90), which included mapping and administration. Read More

    Canadian Radiologists Do Not Support Screening Mammography Guidelines of the Canadian Task Force on Preventive Health Care.
    Can Assoc Radiol J 2017 Aug 25;68(3):257-266. Epub 2017 Mar 25.
    Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada; Sadie Diamond Breast Program, BC Women's Hospital and Health Centre, Vancouver, British Columbia, Canada.
    Purpose: The study sought to determine screening mammography recommendations that radiologists in Canada promote to average-risk patients and family or friends, and do or would do for themselves.

    Methods: An online survey was delivered from February 19, 2014, to July 11, 2014. Data included radiologists' recommendations for mammography and their personal screening habits based on gender. Read More

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