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https://www.readbyqxmd.com/read/29780288/the-assessment-of-carbon-dioxide-automated-angiography-in-type-ii-endoleaks-detection-comparison-with-contrast-enhanced-ultrasound
#1
Chiara Mascoli, Gianluca Faggioli, Enrico Gallitto, Vincenzo Vento, Giuseppe Indelicato, Rodolfo Pini, Andrea Vacirca, Andrea Stella, Mauro Gargiulo
Introduction: Iodinated contrast media completion angiography (ICM-A) may underestimate the presence of type II endoleak (ELII) after endovascular aortic repair (EVAR), particularly if they are at low flow. Contrast-enhanced ultrasound (CEUS) has been proposed as the gold standard in ELII detection during EVAR follow-up. Intraprocedural carbon dioxide (CO2 ) angiography has been shown to be useful in this setting; however no comparative studies including these three techniques are currently available...
2018: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29778557/nanotechnological-foundations-of-a-%C3%A2-new%C3%A2-nephrology
#2
M Laura Sorian, Alberto Rodríguez-Benot, Miguel Valcárcel
After contextualising the generic frameworks of nanotechnology and nanomedicine, the 2disciplines are discussed in the field of Nephrology. The potential downside to nanonephrology is the renal clearance of nanoparticles, the use of which is ever-increasing both for nanomedicinal purposes and in nanofoods. The positive impact of nanotechnology in Nephrology is centred on the development of renal nanodiagnostics for basic renal function studies, the early diagnosis of acute kidney injury, reliable and simple follow-up of chronic kidney disease and the improvement of magnetic resonance imaging...
May 16, 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29776385/generation-of-ventilation-perfusion-ratio-map-in-surgical-patients-by-dual-energy-ct-after-xenon-inhalation-and-intravenous-contrast-media
#3
Kohei Aoki, Yotaro Izumi, Wataru Watanabe, Yuji Shimizu, Hisato Osada, Norinari Honda, Toshihide Itoh, Mitsuo Nakayama
BACKGROUND: While many studies have evaluated the change in lung volume before and after lung resection and correlated this with pulmonary function test results, there is very little evidence on the changes in ventilation perfusion ratio (V/Q) before versus after lung resection. In the present pilot study, we evaluated if V/Q mapping can be constructed using dual energy CT images. METHODS: Thirty-one lung cancer patients planned for pulmonary resection were included in this study...
May 18, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29767782/factfinders-for-patient-safety-are-gadolinium-based-contrast-media-safe-alternatives-to-iodinated-contrast-agents-for-the-safe-performance-of-spinal-injection-procedures
#4
Adrian Popescu, Jaymin Patel, Zachary L McCormick, Timothy P Maus, Meghan Rodes, David R Walega, Clark C Smith
No abstract text is available yet for this article.
May 14, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
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
#5
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/29755070/-hemothorax-due-to-idiopathic-rupture-of-pulmonary-artery-with-defect-of-tunica-media
#6
Kazuyoshi Shimada, Masaki Kawamura
A 47-years-old man with hemodynamic shock was refered to our hospital by an ambulance. Chest computed tomography(CT)showed left hemothorax and the extravasation of contrast media in his left lung. Emergency operation was done. A lot of intrathoracic hematoma and pulsating bleeding from the lung was found, and lingular segmentectomy was performed. Pathologically, the rupture of pulmonary artery of 2.2 mm in diameter was found without the finding of imflammation nor degeneration due to any basal diseases. Around the lesion, some artery of 0...
March 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29752088/folic-acid-cysteamine-modified-gold-nanoparticle-as-a-nanoprobe-for-targeted-computed-tomography-imaging-of-cancer-cells
#7
Sara Khademi, Saeed Sarkar, Ali Shakeri-Zadeh, Neda Attaran, Sharmin Kharrazi, Mohammad Reza Ay, Hossein Ghadiri
Development of various cost-effective multifunctional nanoprobes for efficient targeted molecular imaging of tumors remains a great challenge in medicine. Herein, we report a simple method of forming folic acid-targeted multifunctional gold nanoparticles via cost-effective cysteamine as a template for tumor molecular computed tomography (CT) imaging technique. The formed multifunctional cysteamine-folic acid conjugated gold nanoparticles (FA-Cys-AuNPs) were characterized via different techniques. Colony assay, hematoxylin and eosin (H&E), MTT, and flow cytometry analysis were used to evaluate the cytocompatibility of the particles...
August 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29743905/intravenous-n-acetylcysteine-for-the-prevention-of-contrast-induced-nephropathy-a-prospective-single-center-randomized-placebo-controlled-trial-the-inproc-trial
#8
Barbara Biernacka-Fiałkowska, Marta Szuksztul, Wojciech Suślik, Karolina Dzierwa, Łukasz Tekieli, Magdalena Kostkiewicz, Piotr Podolec, Piotr Pieniążek
Introduction: Contrast-induced nephropathy (CIN) is a common clinical problem that is growing in importance as an increasing number of tests and procedures which utilize contrast media (CM) are performed. Aim: To evaluate the efficacy of intravenous N-acetylcysteine (NAC) for prevention of CIN after diagnostic and/or interventional procedures requiring CM administration. Material and methods: In a prospective, single-center, randomized, placebo-controlled trial the preventive effects of N-acetylcysteine were evaluated in 222 patients undergoing elective angiography and/or angioplasty...
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29739428/incidence-and-outcomes-of-acute-kidney-injury-in-octogenarians-in-jordan
#9
Ashraf O Oweis, Sameeha A Alshelleh
OBJECTIVE: Improvements in the health care system, resulted in a greater number of geriatric patients diagnosed with acute kidney injury (AKI). We evaluated the incidence and outcome of AKI in octogenarians, as studies in the Middle-East region are few; moreover, treatment approaches, in addition to medical decisions, may require special consideration for advanced age to improve the outcomes. RESULTS: At King Abdullah II teaching and referral hospital, we recruited patients aged 80-90 years who were admitted to the medical floor between January 2010 and December 2013...
May 8, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29730853/renalguard-system-to-prevent-contrast-induced-acute-kidney-injury-in-japanese-patients-with-renal-dysfunction-respect-kidney-study
#10
Hiromasa Katoh, Tsuyoshi Nozue, Kazuki Horie, Takashi Sozu, Naoto Inoue, Ichiro Michishita
Increasing the urine flow rate (UFR) reduces the toxic effect of contrast media. Use of the RenalGuard system enables the achievement of a high UFR by maintaining intravascular volume and prevents the development of contrast-induced acute kidney injury (CI-AKI). However, the efficacy and safety of RenalGuard system have not yet been evaluated in Japan. This multicenter prospective study evaluated the efficacy and safety of the RenalGuard therapy in preventing CI-AKI development in 60 Japanese patients with renal dysfunction [estimated glomerular filtration rate (eGFR) < 45 mL/min/1...
May 5, 2018: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29728370/serum-corin-level-is-associated-with-subsequent-decline-in-renal-function-in-patients-with-suspected-coronary-artery-disease
#11
Shang-Feng Yang, Ruey-Hsing Chou, Szu-Yuan Li, Shao-Sung Huang, Po-Hsun Huang
BACKGROUND: Higher circulatory corin in patients with cardiac diseases is associated with improved cardiovascular outcomes, and chronic cardiac dysfunction is a well-known cause of progressive renal dysfunction. This study aimed to determine the role of serum corin in predicting short-term and long-term renal outcomes after contrast exposure in patients with suspected coronary artery disease. METHODS AND RESULTS: Four hundred one patients who had received coronary angiography were enrolled...
May 4, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29724803/pharmacology-part-2-introduction-to-pharmacokinetics
#12
Geoffrey M Currie
Pharmacology principles provide key understanding that underpins the clinical and research roles of nuclear medicine practitioners. This article is the second in a series of articles that aims to enhance the understanding of pharmacological principles relevant to nuclear medicine. This article will build on the introductory concepts, terminology and principles of pharmacodynamics explored in the first article in the series. Specifically, this article will focus on the basic principles associated with pharmacokinetics...
May 3, 2018: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/29713447/over-the-scope-clip-otsc%C3%A2-closure-of-a-recto-acetabular-fistula
#13
Tobias S Schiergens, Cord-Christian Becker, Patrick Weber, Alena Sint, Markus Albertsmeier, Bernhard W Renz, Maria Burian, Axel Kleespies, Angela Reichelt, Markus O Guba, Markus Rentsch, Jens Werner, Christian P Schneider
A 25-year-old male Syrian refugee presented in our hospital with recurrent hip infections after having undergone hip arthroplasty abroad following destruction of his right hip joint by shell splinters in the Syrian civil war. The patient underwent hip arthroplasty revision with implantation of a cement spacer. CT-scan with rectal contrast media filling revealed a recto-acetabular fistula. Consecutively, the patient underwent ileostomy formation. The fistula was then successfully closed by endoscopic over-the-scope clipping (OTSC® )...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29707915/development-of-an-organ-specific-insert-phantom-generated-using-a-3d-printer-for-investigations-of-cardiac-computed-tomography-protocols
#14
Kamarul A Abdullah, Mark F McEntee, Warren Reed, Peter L Kench
INTRODUCTION: An ideal organ-specific insert phantom should be able to simulate the anatomical features with appropriate appearances in the resultant computed tomography (CT) images. This study investigated a 3D printing technology to develop a novel and cost-effective cardiac insert phantom derived from volumetric CT image datasets of anthropomorphic chest phantom. METHODS: Cardiac insert volumes were segmented from CT image datasets, derived from an anthropomorphic chest phantom of Lungman N-01 (Kyoto Kagaku, Japan)...
April 30, 2018: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/29704934/liver-enhancement-in-healthy-dogs-after-gadoxetic-acid-administration-during-dynamic-contrast-enhanced-magnetic-resonance-imaging
#15
P Borusewicz, E Stańczyk, K Kubiak, J Spużak, K Glińska-Suchocka, M Jankowski, J Nicpoń, P Podgórski
Dynamic contrast enhanced (DCE)-magnetic resonance imaging (MRI) consists of acquisition of native baseline images, followed by a series of acquisitions performed during and after administration of a contrast medium. DCE-MRI, in conjunction with hepatobiliary-specific contrast media, such as gadoxetic acid (GD-EOB-DTPA), allows for precise characterisation of the enhancement pattern of the hepatic parenchyma following administration of the contrast agent. The aim of the study was to assess the pattern of temporal resolution contrast enhancement of the hepatic parenchyma following administration of GD-EOB-DTPA and to determine the optimal time window for post-contrast assessment of the liver...
May 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29703048/tolvaptan-rescue-contrast-induced-acute-kidney-injury-a-case-report
#16
Wei-Chieh Lee, Hsiu-Yu Fang, Chih-Yuan Fang
RATIONALE: Contrast-induced acute kidney injury is one of the most serious adverse effects of contrast media and is related to three distinct but interacting mechanisms: medullary ischemia, formation of reactive oxygen species and direct tubular cell toxicity, especially in the patients with chronic kidney disease. The strategies of treatment, including stabilization of hemodynamic parameters and maintenance of normal fluid and electrolyte balance, were similar to the management of other types of acute kidney injury...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29702525/feasibility-of-dynamic-contrast-enhanced-magnetic-resonance-imaging-using-low-dose-gadolinium-comparative-performance-with-standard-dose-in-prostate-cancer-diagnosis
#17
Dianning He, Aritrick Chatterjee, Xiaobing Fan, Shiyang Wang, Scott Eggener, Ambereen Yousuf, Tatjana Antic, Aytekin Oto, Gregory S Karczmar
OBJECTIVES: This study investigates whether administration of low doses of gadolinium-based contrast agent (GBCA) for dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) can be as effective as a standard dose in distinguishing prostate cancer (PCa) from benign tissue. In addition, we evaluated the combination of kinetic parameters from the low- and high-dose injection as a new diagnostic marker. MATERIALS AND METHODS: Patients (n = 17) with histologically confirmed PCa underwent preoperative 3 T MRI...
April 27, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29694239/nausea-and-vomiting-after-exposure-to-non-ionic-contrast-media-incidence-and-risk-factors-focusing-on-preparatory-fasting
#18
Yeon Soo Kim, Soon Ho Yoon, Young Hun Choi, Chang Min Park, Whal Lee, Jin Mo Goo
OBJECTIVE: To prospectively evaluate the incidence of nausea and vomiting after exposure to non-ionic iodinated contrast media (ICM), and to identify potential risk factors, with a focus on fasting duration for solid food and fluids, separately. METHODS: From January to March 2017, 1175 patients (605 males, 570 females; median age, 60 years; range, 20-91 years) undergoing ICM-enhanced CT were included in this study. Patients received instructions for a 6 h preparatory fast from solid food...
April 25, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29691354/does-warming-intravenous-contrast-media-improve-patient-safety
#19
Kassidy Carroll Studer
No abstract text is available yet for this article.
March 2018: Radiologic Technology
https://www.readbyqxmd.com/read/29688455/advanced-image-processing-with-fusion-and-calcification-enhancement-in-transcatheter-aortic-valve-implantation-impact-on-radiation-exposure
#20
Pavel Overtchouk, Arnaud Sudre, Cédric Delhaye, Francis Juthier, Eric Van Belle, Augustin Coisne, Mohamad Koussa, Darren Mylotte, Thomas Modine
OBJECTIVES: Radiation exposure is a concern for both patients and operators during transcatheter aortic valve implantation (TAVI). Efforts to reduce radiation dose are warranted. We aimed at investigating if per-operative advanced image processing can reduce patient and operator irradiation use during TAVI. METHODS: We performed a prospective single-centre observational study comparing patient and operator radiation exposure using standard fluoroscopy (control group) or a novel technology of live advanced fluoroscopic image processing (test group) among consecutive patients undergoing TAVI between August 2015 and April 2016...
April 23, 2018: Interactive Cardiovascular and Thoracic Surgery
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