The DNA Fragmentation Index (DFI) is a newer and potentially more reliable marker for male infertility, with higher values indicating poorer sperm genetic quality. This study assesses the effect of varicocele embolization on DFI in infertile men. Conducted at a single center from January 2016 to September 2021, this retrospective study involved 22 patients with a mean age of 35.
View Article and Find Full Text PDFAJR Am J Roentgenol
November 2024
Background: Hepatocellular carcinoma (HCC) a leading cause of cancer mortality worldwide and approximately one-third of patients present with intermediate-stage disease. The treatment landscape of intermediate-stage HCC is rapidly evolving due to developments in local, locoregional and systemic therapies. Treatment recommendations focused on this heterogenous disease stage and that take into account the Canadian reality are lacking.
View Article and Find Full Text PDFCan Assoc Radiol J
February 2023
This review explores the priorities and future opportunities of interventional radiology in Canada.
View Article and Find Full Text PDFComplete tumor coverage by the thermal ablation zone and with a safety margin (5 or 10 mm) is required to achieve the entire tumor eradication in liver tumor ablation procedures. However, 2D ultrasound (US) imaging has limitations in evaluating the tumor coverage by imaging only one or multiple planes, particularly for cases with multiple inserted applicators or irregular tumor shapes. In this paper, we evaluate the intra-procedural tumor coverage using 3D US imaging and investigate whether it can provide clinically needed information.
View Article and Find Full Text PDFGraphical Abstarct: PURPOSE: To report the results of the first-in-human trial evaluating the safety and efficacy of the percutaneous ultrasound gastrostomy (PUG) technique.
Methods: A prospective, industry-sponsored single-arm clinical trial of PUG insertion was performed in 25 adult patients under investigational device exemption (mean age 64 ± 15 years, 92% men, 80% inpatients, mean BMI 24.5 ± 2.
Purpose: Lu-Dotatate is an emerging treatment modality for patients with unresectable or metastatic well-differentiated NETs. This study examines survival predictors in patients who received Lu-Dotatate.
Methods: A retrospective single-center review was conducted, examining 47 individuals with progressive well-differentiated NETs treated with Lu-Dotatate (four induction cycles of 5.
Peptide receptor radionuclide therapy (PRRT) has been recently established as a treatment option for progressive gastro-entero-pancreatic neuroendocrine tumors (NETs) including four 200 mCi induction cycles. The purpose of this phase 2 trial is to expand use of PRRT to different types of NETs with the application of dose adjustment and evaluate value of maintenance therapy in patients who had disease control on induction therapy. Forty-seven PRRT naïve NET patients with different primary origin received Lu-DOTATATE induction therapy, ranging from 75 to 150 mCi per cycle, based on patients' clinical status such as liver and renal function, extent of metastases, and previous therapies.
View Article and Find Full Text PDFObjective: To determine if insertion of rIVCF for PE prophylaxis in high risk trauma patients could result in a clinically meaningful reduction (>24 h) in time that patients are left unprotected from PEs SUMMARY AND BACKGROUND DATA: Trauma patients are at high risk for the development of pulmonary embolism (PE). Early pharmacologic PE prophylaxis is ideal, however many patients are unable to receive prophylaxis due to concomitant injuries. Current guidelines are conflicting on the role of prophylactic retrievable inferior vena cava filters (rIVCF) for PE prevention in this patient population, and robust data to guide clinicians is lacking.
View Article and Find Full Text PDFWe present the case of a 73-year-old female who underwent percutaneous cryoablation for recurrent life-threatening pancreatic vasoactive intestinal polypeptide-producing tumor (VIPoma) following a pancreaticoduodenectomy and chemotherapy 5 years earlier. She presented with profuse watery diarrhea causing severe electrolyte and acid-base abnormalities, along with acute kidney injury. Cryoablation was successful in treating her profound symptoms, completely reversing her clinical course.
View Article and Find Full Text PDFPurpose: The aim of this national survey was to assess the overall impact of the coronavirus disease 2019 (COVID-19) pandemic on the provision of interventional radiology (IR) services in Canada.
Methods: An anonymous electronic survey was distributed via national and regional radiology societies, exploring (1) center information and staffing, (2) acute and on-call IR services, (3) elective IR services, (4) IR clinics, (5) multidisciplinary rounds, (6) IR training, (7) personal protection equipment (PPE), and departmental logistics.
Results: Individual responses were received from 142 interventional radiologists across Canada (estimated 70% response rate).
The current coronavirus disease 2019 (COVID-19) pandemic is creating significant challenges to the Canadian health system, including the practice of interventional radiology (IR). Interventional radiology will continue to play an important role in patient care, during this crisis. This document serves to guide interventional and general radiologists in safely performing IR procedures on patients with suspected or confirmed COVID-19, using the best evidence, guidelines and expert recommendations available.
View Article and Find Full Text PDFPercutaneous ultrasound gastrostomy (PUG) technique was developed to allow for gastrostomy tube insertion to be performed solely under ultrasound guidance without need for fluoroscopy or endoscopy. This report discusses the new device, proposed PUG technique, and the first-in-human experience. Five patients had PUG tube insertion performed as part of a Health Canada approved investigational study.
View Article and Find Full Text PDFAJR Am J Roentgenol
October 2018
Objective: We aim to define the practice of interventional radiology (IR) in Canada, barriers that have been faced by interventional radiologists, and ways in which the Canadian Interventional Radiology Association (CIRA) have attempted to address these issues.
Conclusion: IR has faced significant challenges in the Canadian setting. Recognizing the need to address these challenges, leaders in the field of IR in Canada founded the CIRA to serve as our national voice and lobby group.
Purpose: Our objective was to assess 30-day mortality and complication rates associated with percutaneous enteral feeding tube insertion using a single-puncture, dual-suture anchor gastropexy and peel-away sheath technique. We explored differences in complications based on indication and gastrostomy versus gastrojejunostomy tube.
Methods: A retrospective review was conducted of adult patients undergoing fluoroscopically guided gastrojejunostomy (GJ) and gastrostomy (G) tube insertions between July 2011 and 2014 by five interventional radiologists at a single tertiary care centre.
Can Assoc Radiol J
February 2018
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 < .
Intralobar pulmonary sequestration is a rare congenital malformation characterized by the presence of dysplastic lung that does not communicate with the tracheobronchial tree, and has aberrant systemic arterial supply. While most are asymptomatic, they rarely can present with hemoptysis, which has been traditionally managed with surgical resection of the sequestration. We report a case of an 18-year-old male who presented with acute large-volume hemoptysis on a background of recurrent minor episodes of hemoptysis, due to intralobar sequestration.
View Article and Find Full Text PDFAdrenocorticotropic hormone production by pancreatic neuroendocrine tumor (PNET) is rare and results in hyperstimulation of the adrenal gland to produce ectopic Cushing syndrome. Our case showcases the safety and effectiveness of percutaneous CT-guided microwave ablation of the adrenal gland in a 49-year-old female with PNET and hepatic metastases who presented with ectopic Cushing syndrome despite surgical resection of the primary pancreatic tumor and left adrenal gland. Prior to ablation, the right adrenal gland measured 4.
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