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Interventional radiologist

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https://www.readbyqxmd.com/read/29789910/a-radiopaque-3d-printed-anthropomorphic-phantom-for-simulation-of-ct-guided-procedures
#1
Paul Jahnke, Felix Benjamin Schwarz, Marco Ziegert, Tobias Almasi, Owais Abdelhadi, Maximilian Nunninger, Bernd Hamm, Michael Scheel
OBJECTIVES: To develop an anthropomorphic phantom closely mimicking patient anatomy and to evaluate the phantom for the simulation of computed tomography (CT)-guided procedures. METHODS: Patient CT images were printed with aqueous potassium iodide solution (1 g/mL) on paper. The printed paper sheets were stacked in alternation with 1-mm thick polyethylene foam layers, cut to the patient shape and glued together to create an anthropomorphic abdomen phantom. Ten interventional radiologists performed periradicular infiltration on the phantom and rated the phantom procedure regarding different aspects of suitability for simulating CT-guided procedures...
May 22, 2018: European Radiology
https://www.readbyqxmd.com/read/29784243/management-of-severe-and-or-refractory-epistaxis
#2
Patricia García-Cabo, Laura Fernández-Vañes, Daniel Pedregal, Marta Menéndez Del Castro, Eduardo Murias, Pedro Vega, José Luis Llorente, Juan Pablo Rodrigo, Fernando López
OBJECTIVE: The objective was to determine the results of the treatment of severe and/or refractory epistaxis requiring hospital admission. In addition, the results of arterial ligation versus embolization were compared. MATERIAL AND METHOD: Sixty-three patients with severe and/or refractory epistaxis requiring hospital admission between August 2014 and December 2016 were included prospectively. RESULTS: Eleven patients (17%) underwent embolization, 5 (8%) endoscopy ligation and the remaining 47 (75%) underwent conservative treatment with tamponade...
May 18, 2018: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/29783028/thoracic-duct-embolization-a-survey-of-practice-patterns
#3
Samantha A Jayasinghe, Ravi N Srinivasa, Anthony N Hage, Joseph J Gemmete, Bill S Majdalany, Jeffrey Forris Beecham Chick
PURPOSE: To determine training, treatment techniques, outcomes, and practice patterns of practitioners performing thoracic duct embolization (TDE). MATERIALS AND METHODS: From September to October of 2017, a 34-question survey focusing on training, treatment techniques, outcomes, and practice patterns of TDE was distributed through the Open Forum using the Society of Interventional Radiology Connect website. 54 practitioners completed the entire survey. Percentages were calculated for answers to the questions...
May 18, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29777838/acute-renal-vein-thrombosis-a-case-report-of-successful-treatment-with-mechanical-thromboaspiration
#4
Tarryn Lee Carlsson, Katharine Lewis
Treatment of renal vein thromboses has previously been limited to conventional anticoagulation. We describe a case of successful treatment of acute native renal vein thrombosis in a 61-year-old fit and well female using mechanical thromboaspiration without the use of thrombolysis. The report demonstrates the CT appearances of an acute renal vein thrombosis, the venographic images pre- and post-thromboaspiration and the MR imaging of the kidney 3 months later, showing complete resolution of the thrombus and normal appearances of the kidney...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29771696/the-future-of-anesthesia-for-interventional-radiology
#5
Annie Amin, Jason Scott Lane
PURPOSE OF REVIEW: To review novel procedures in interventional radiology and describe anesthetic implications. RECENT FINDINGS: Noninvasive treatment options for patients who are nonsurgical candidates are on the rise. The complication rate for patients receiving anesthesia in the interventional radiology suite is higher than other nonoperating room anesthetizing locations. The investigative use of catheter-directed thrombolysis for acute submassive pulmonary embolism will likely lead to an increased demand for anesthesia assistance...
May 15, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29770927/a-review-of-existing-and-potential-computer-user-interfaces-for-modern-radiology
#6
REVIEW
Antoine Iannessi, Pierre-Yves Marcy, Olivier Clatz, Anne-Sophie Bertrand, Maki Sugimoto
The digitalization of modern imaging has led radiologists to become very familiar with computers and their user interfaces (UI). New options for display and command offer expanded possibilities, but the mouse and keyboard remain the most commonly utilized, for usability reasons. In this work, we review and discuss different UI and their possible application in radiology. We consider two-dimensional and three-dimensional imaging displays in the context of interventional radiology, and discuss interest in touchscreens, kinetic sensors, eye detection, and augmented or virtual reality...
May 16, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29763951/dynamic-4d-ct-angiography-for-guiding-transarterial-chemoembolization-impact-on-the-reduction-of-contrast-material-operator-radiation-exposure-catheter-consumption-and-diagnostic-confidence
#7
Moritz H Albrecht, Thomas J Vogl, Julian L Wichmann, Simon S Martin, Jan-Erik Scholtz, Sebastian Fischer, Renate M Hammerstingl, Marc Harth, Nour-Eldin A Nour-Eldin, Axel Thalhammer, Stephan Zangos, Ralf W Bauer
PURPOSE:  This study was carried out to investigate the impact of abdominal dynamic four-dimensional CT angiography (4D-CTA) for guiding transarterial chemoembolization (TACE) on the amount of contrast material used, operator radiation exposure, catheter consumption, and diagnostic confidence. MATERIALS AND METHODS:  Written consent was waived for this IRB-approved retrospective study. 29 patients (20 men; mean age: 65.7 ± 11.5 years) with malignant liver lesions underwent 4D-CTA, prior to initial TACE...
June 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29757723/ct-and-mr-imaging-features-of-artificial-urinary-sphincters-penile-prostheses-and-other-devices-in-the-male-lower-genitourinary-tract
#8
Elizabeth T Chorney, Parvati Ramchandani, William I Jaffe, Evan S Siegelman
Urinary incontinence and erectile dysfunction are relatively common conditions in the aging male population. Surgical interventions for urinary incontinence include placement of an artificial urinary sphincter (AUS), perineal sling, or sacral nerve stimulator and injections of periurethral bulking agents. Erectile dysfunction can be treated surgically with placement of a penile prosthesis. The complications of these devices can be broadly categorized as device component malposition, malfunction, and infection...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29752684/natural-history-of-gas-configurations-and-encapsulation-in-necrotic-collections-during-necrotizing-pancreatitis
#9
Janneke van Grinsven, Sandra van Brunschot, Mark C van Baal, Marc G Besselink, Paul Fockens, Harry van Goor, Hjalmar C van Santvoort, Thomas L Bollen
BACKGROUND: Decision-making on invasive intervention in patients with clinical signs of infected necrotizing pancreatitis is often related to the presence of gas configurations and the degree of encapsulation in necrotic collections on imaging. Data on the natural history of gas configurations and encapsulation in necrotizing pancreatitis are, however, lacking. METHODS: A post hoc analysis was performed of a previously described prospective cohort in 21 Dutch hospitals (2004-2008)...
May 11, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29750297/col2a1-mutation-c-3508g-a-leads-to-avascular-necrosis-of-the-femoral-head-in-a-chinese-family-a-case-report
#10
Fang Liu, Zhizheng Xiong, Qi Liu, Jinxi Hu, Wenhua Li, Na Zhang
Avascular necrosis of the femoral head (ANFH) is a consequence of ischemia. Although the majority of cases of ANFH are sporadic, certain familial cases of ANFH have been reported to be associated with collagen type II α1 chain (COL2A1) mutations, which lead to COL2A1 gene dysfunction. The structure of secreted type II collagen contains a core area with a triple helical glycine (Gly)‑X‑Y domain, and the replacement of Gly in this region as a result of COL2A1 mutations may damage the structure of type II collagen...
May 7, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29734489/diagnostic-performance-of-intravoxel-incoherent-motion-diffusion-weighted-imaging-in-the-assessment-of-the-dynamic-status-of-myocardial-perfusion
#11
Dong-Aolei An, Bing-Hua Chen, Rui-Wu, Ruo-Yang Shi, Jun Bu, Heng Ge, Jiani Hu, Jian-Rong Xu, Lian-Ming Wu
BACKGROUND: Acute myocardial infarction (AMI) is a major cause of morbidity and mortality worldwide and places a significant financial burden on our society. PURPOSE: To determine the feasibility of cardiac intravoxel incoherent motion (IVIM) in the consecutive evaluation of myocardial perfusion in myocardial infarction patients postpercutaneous coronary intervention (PCI) and to investigate the dynamic biological phenomena in myocardial perfusion after AMI. STUDY TYPE: Prospective observational study...
May 7, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29723954/endovascular-interventions-for-the-morbidly-adherent-placenta
#12
REVIEW
Claire Kaufman, Anthony Tadros
Morbidly adherent placentas are a spectrum of abnormalities ranging from placental invasion of the myometrium to invasion past the myometrium and muscular layers into adjacent structures. This entity is becoming more prevalent recently with increased number of cesarean deliveries. Given the high risk of morbidity and mortality, this was traditionally treated with pre-term planned cesarean hysterectomy. However, recently, uterine preservation techniques have been implemented for those women wishing to preserve future fertility or their uterus...
May 1, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29696193/a-prospective-development-study-of-software-guided-radio-frequency-ablation-of-primary-and-secondary-liver-tumors-clinical-intervention-modelling-planning-and-proof-for-ablation-cancer-treatment-clinicimppact
#13
Martin Reinhardt, Philipp Brandmaier, Daniel Seider, Marina Kolesnik, Sjoerd Jenniskens, Roberto Blanco Sequeiros, Martin Eibisberger, Philip Voglreiter, Ronan Flanagan, Panchatcharam Mariappan, Harald Busse, Michael Moche
Introduction: Radio-frequency ablation (RFA) is a promising minimal-invasive treatment option for early liver cancer, however monitoring or predicting the size of the resulting tissue necrosis during the RFA-procedure is a challenging task, potentially resulting in a significant rate of under- or over treatments. Currently there is no reliable lesion size prediction method commercially available. Objectives: ClinicIMPPACT is designed as multicenter-, prospective-, non-randomized clinical trial to evaluate the accuracy and efficiency of innovative planning and simulation software...
December 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29693420/present-role-and-future-perspectives-of-interventional-radiology-in-the-treatment-of-painful-bone-lesions
#14
Antonio Barile, Francesco Arrigoni, Federico Bruno, Pierpaolo Palumbo, Chiara Floridi, Roberto L Cazzato, Alfonso Reginelli, Marcello Zappia, Luca Brunese, Luigi Zugaro, Carlo Masciocchi
Interventional radiology has experienced an exponential growth in the last years. Nowadays it is possible to treat painful benign lesions or metastases with optimal results in terms of pain management and disease control. Among the benign lesions, osteoid osteoma is the most frequently treated with minimal invasive techniques and the results are excellent. Another lesion, traditionally treated with surgery (osteoblastoma) represent today another field of application. In the oncological field, metastases are, numerically, the most diffuse indications for treatment...
April 25, 2018: Future Oncology
https://www.readbyqxmd.com/read/29692534/ultrasound-guided-peripheral-nerve-interventions-for-common-pain-disorders
#15
B P Krishna Prasad, Binu Joy, Vijayakumar A Raghavendra, Ajith Toms, Danny George, Brijesh Ray
There are a number of common pain disorders that can be managed effectively by injections around or ablation of peripheral nerves. Ultrasound is a universally available imaging tool, is safe, cost-effective, and is excellent in imaging many peripheral nerves and guiding needles to the site of the nerves. This article aims to present an overview of indications and techniques of such procedures that can be effectively performed by a radiologist.
January 2018: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29690541/colorectal-vaginal-fistulas-imaging-and-novel-interventional-treatment-modalities
#16
REVIEW
M-Grace Knuttinen, Johnny Yi, Paul Magtibay, Christina T Miller, Sadeer Alzubaidi, Sailendra Naidu, Rahmi Oklu, J Scott Kriegshauser, Winnie A Mar
Colovaginal and/or rectovaginal fistulas cause significant and distressing symptoms, including vaginitis, passage of flatus/feces through the vagina, and painful skin excoriation. These fistulas can be a challenging condition to treat. Although most fistulas can be treated with surgical repair, for those patients who are not operative candidates, limited options remain. As minimally-invasive interventional techniques have evolved, the possibility of fistula occlusion has enriched the therapeutic armamentarium for the treatment of these complex patients...
April 22, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29685402/angiomyolipoma-of-the-kidneys-current-perspectives-and-challenges-in-diagnostic-imaging-and-image-guided-therapy
#17
REVIEW
Abdul Razik, Chandan J Das, Sanjay Sharma
Angiomyolipomas (AML) are benign tumors of the kidneys frequently encountered in radiologic practice in large tertiary centers. In comparison to renal cell carcinomas (RCC), AML are seldom treated unless they are large, undergo malignant transformation or develop complications like acute hemorrhage. The common garden triphasic (classic) AML is an easy diagnosis, however, some variants lack macroscopic fat in which case the radiologic differentiation from RCC becomes challenging. Several imaging features, both qualitative and quantitative, have been described in differentiating the 2 entities...
March 20, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29682138/successful-retrograde-recanalization-of-acute-right-dominant-vertebral-artery-occlusion-through-the-left-posterior-communicating-artery-in-a-patient-with-acute-vertebrobasilar-ischemic-stroke
#18
Anton A Khilchuk, Maksim V Agarkov, Sergey V Vlasenko, Sergey G Scherbak, Andrey M Sarana, Svetlana V Lebedeva
Advanced endovascular technology and techniques allow interventional radiologists to utilize novel ways of basilar artery recanalization in the setting of acute ischemic stroke, especially when routine approaches are not eligible. Several authors described nonstandard revascularization techniques in acute ischemic strokes due to basilar and middle cerebral arteries occlusions with full technical and clinical success. In this report, we present retrograde right vertebral artery recanalization using left posterior communicating artery for subsequent anterograde balloon angioplasty and stenting of a right vertebral artery ostium followed by full vertebrobasilar blood flow restoration...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29679214/improvement-of-radiology-reporting-in-a-clinical-cancer-network-impact-of-an-optimised-multidisciplinary-workflow
#19
A W Olthof, J Borstlap, W W Roeloffzen, P M C Callenbach, P M A van Ooijen
PURPOSE: To assess the effectiveness of implementing a quality improvement project in a clinical cancer network directed at the response assessment of oncology patients according to RECIST-criteria. METHODS: Requests and reports of computed tomography (CT) studies from before (n = 103) and after (n = 112) implementation of interventions were compared. The interventions consisted of: a multidisciplinary working agreement with a clearly described workflow; subspecialisation of radiologists; adaptation of the Picture Archiving and Communication System (PACS); structured reporting...
April 20, 2018: European Radiology
https://www.readbyqxmd.com/read/29677117/developing-interventional-radiology-anticoagulation-guidelines-process-and-benefits-%C3%A2
#20
J Scott Kriegshauser, Howard H Osborn, Sailen G Naidu, Eric A Huettl, Maitray D Patel
We created, posted, and updated radiology department anticoagulation guidelines and identified various steps in the process, including triggering events, consensus building, legal analysis, education, and distribution of the guidelines to nurses and clinicians. Supporting data collected retrospectively, before and after implementation, included nursing satisfaction survey results and the number of procedure cancellations. After the guidelines were developed and posted, significantly fewer procedures were cancelled, nursing satisfaction was higher, and radiologists performed procedures with less variability...
April 20, 2018: Journal of Clinical Medicine
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