keyword
MENU ▼
Read by QxMD icon Read
search

ultrasound AND contrast media

keyword
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/29739796/prevalence-of-carotid-plaque-in-a-63-to-65-year-old-norwegian-cohort-from-the-general-population-the-ace-akershus-cardiac-examination-1950-study
#2
Håkon Ihle-Hansen, Thea Vigen, Hege Ihle-Hansen, Ole Morten Rønning, Trygve Berge, Bente Thommessen, Magnus Nakrem Lyngbakken, Eivind Bjørkan Orstad, Steve Enger, Ståle Nygård, Helge Røsjø, Arnljot Tveit
BACKGROUND: New data on extracranial carotid atherosclerosis are needed, as improved ultrasound techniques may detect more atherosclerosis, the definition of plaque has changed over the years, and better cardiovascular risk control in the population may have changed patterns of carotid arterial wall disease and actual prevalence of established cardiovascular disease. We investigated the prevalence of atherosclerotic carotid plaques and carotid intima-media thickness (cIMT) and their relation to cardiovascular risk factors in a middle-aged cohort from the general population...
May 8, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29685628/antegrade-papillotome-navigation-as-a-novel-next-line-approach-for-internalization-of-percutaneous-transhepatic-biliary-drainage
#3
V Zimmer
There is an increasing rivalry between percutaneous transhepatic (PTBD) vs. endoscopic ultrasound-guided biliary drainage (EUS-BD) as rescue techniques after failed endoscopic retrograde cholangiography (ERC) access. While EUS-BD procedures hold a bright future, innovations in PTBD technique are still possible and clinically meaningful, at least so, under the a conceptual framework understanding PTBD as a bridging, anatomy-respecting technology for definitive biliary metal stenting. This, however, calls for successful PTBD internalization as a sine qua non...
April 20, 2018: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29657604/the-role-of-intestinal-ultrasound-in-diagnostics-of-bowel-diseases
#4
REVIEW
Magdalena Andrzejewska, Marian Grzymisławski
Intestinal ultrasound is a safe and inexpensive method that allows visualisation of the gastrointestinal tract and detection of abnormalities. This examination involves the use of two different ultrasound transducers: a low-frequency convex probe and high-frequency linear probe. When needed, the performance of these methods can be enhanced by the use of contrast media or Doppler techniques. Intestinal ultrasound is mostly utilised for the diagnosis and follow-up of patients with inflammatory bowel diseases, helping to avoid frequent use of invasive and expensive diagnostic procedures and leading to early implementation of suitable treatment...
2018: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/29541613/recent-updates-on-echocardiography-and-ultrasound-for-kawasaki-disease-beyond-the-coronary-artery
#5
REVIEW
Nobutaka Noto, Akiko Komori, Mamoru Ayusawa, Shori Takahashi
Kawasaki disease (KD) is a systemic vasculitis with a predilection for damage to the coronary arteries. In the acute phase, clinical decision making for KD relies on the measurements of the coronary z-score obtained by 2-dimensional echocardiography (2DE). In the convalescent phase, KD patients with coronary artery abnormalities (CAAs) eventually show arteriosclerotic vascular remodeling characterized by marked intimal proliferation and neoangiogenesis after KD vasculitis, which often induces myocardial ischemia...
February 2018: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29496072/image-guided-percutaneous-renal-cryoablation-five-years-experience-results-and-follow-up
#6
Andre Arantes Pereira Azevedo, Antonio Rahal, Priscila Mina Falsarella, Gustavo Caserta Lemos, Oliver Rojas Claros, Arie Carneiro, Marcos Roberto Gomes de Queiroz, Rodrigo Gobbo Garcia
OBJECTIVES: To describe the experience of our institution in image-guided renal nodules percutaneous cryoablation, evaluating demographic and technical aspects as well as efficacy, safety and follow up. MATERIALS AND METHODS: Retrospective study approved by our institutional review board. Seventy-one renal tumors evaluated in 60 patients treated with image guided percutaneous renal cryoablation from January 2009 to December 2015. No patient was excluded from study, even those who were lost on follow up...
March 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29437024/uric-acid-metabolic-syndrome-and-atherosclerosis-the-chicken-or-the-egg-which-comes-first
#7
Giovanni De Pergola, Francesca Cortese, Gaetano Termine, Giovanni Meliota, Rossella Carbonara, Michele Masiello, Anna M Cortese, Francesco Silvestris, Domenico Caccavo, Marco Matteo Ciccone
BACKGROUND: A great debate in literature exists nowadays on the role of uric acid as a marker of cardiovascular and metabolic organ damage or a risk factor for cardiovascular and metabolic disease. METHODS: The study aimed to determine the relationship among serum uric acid and metabolic syndrome and atherosclerosis, by means of carotid intima media-thickness, in a cohort of 811 otherwise healthy overweight/obese subjects, without overt atherosclerosis not using any kind of drug...
2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29402147/carotid-im-gsm-is-better-than-imt-for-identifying-patients-with-multiple-arterial-disease
#8
Fisnik Jashari, Pranvera Ibrahimi, Elias Johansson, Christer Grönlund, Per Wester, Michael Y Henein
OBJECTIVE: Atherosclerosis is a systemic inflammatory disease that can affect more than one arterial bed simultaneously. The aim of this study was to determine the relationship between ultrasound markers of atherosclerosis and multiple arterial disease. DESIGN: We have included 87 currently asymptomatic carotid disease patients (mean age 69 ± 6 year, 34% females) in this study. Intima media thickness (IMT) and intima media-grey scale median (IM-GSM) were measured in the common carotid artery (CCA), and correlated with previous and/or current atherosclerotic vascular disease in the coronary, carotid and lower extremities...
April 2018: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/29362157/contrast-enhanced-cone-beam-breast-ct-analysis-of-optimal-acquisition-time-for-discrimination-of-breast-lesion-malignancy
#9
Johannes Uhlig, Uwe Fischer, Alexey Surov, Joachim Lotz, Susanne Wienbeck
OBJECTIVE: To investigate the optimal acquisition time of contrast-enhanced cone-beam breast-CT (CBBCT) for best discrimination of breast lesion malignancy and whether contrast enhancement can aid in classification of tumor histology. MATERIAL AND METHODS: The study included patients with BI-RADS 4 or 5 lesions identified on mammography and/or ultrasound. All patients were examined by non-contrast (NC-CBBCT) and contrast-enhanced CBBCT (CE-CBBCT) at 2 and 3min after contrast media (CM) injection...
February 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29259515/intravascular-ultrasound-guided-cardiac-intervention-in-a-fontan-patient-with-allergy-to-contrast-media
#10
Jun Muneuchi, Seigo Okada, Yusaku Nagatomo, Chiaki Iida, Ryouhei Matsuoka, Masamitsu Shirozu, Mamie Watanabe
Allergy to contrast media is hazardous in patients who need multiple cardiac catheterizations. We describe the case of a 16-year-old boy who presented with fatigue and cyanosis. He had undergone a Fontan operation 14 years previously, after which he developed an allergy to iodinated contrast media. Contrast echocardiograms by manual injection of microbubbles suggested the presence of a venovenous collateral vessel from the brachiocephalic vein draining into the pulmonary vein. We used intravascular ultrasound as the sole imaging method to identify the target vessel and to guide deployment of an Amplatzer Vascular Plug II...
October 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/29232724/inter-rater-reliability-of-air-saline-hycosy-hyfosy-and-hyfosy-combined-with-power-doppler-for-screening-tubal-patency
#11
Inga Ludwin, Artur Ludwin, Carolina O Nastri, Marcela A Coelho Neto, Jan Kottner, Wellington P Martins
Purpose  To estimate the inter-observer reliability and agreement of offline analyses of three different ultrasound techniques for assessing tubal patency. Methods  100 tubes (n = 100) in 50 women were evaluated for tubal patency between November 2013 and July 2015 using ultrasound as index tests and laparoscopy as the reference standard. Three different ultrasound techniques were applied: two-dimensional grayscale ultrasound using air + saline as the contrast media (2D-HyCoSy); two- and three-dimensional grayscale ultrasound using foam as the contrast media (2 D/3D-HyFoSy); and the same technique but adding bi-directional power Doppler (2 D/3D-Doppler-HyFoSy)...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29170545/increased-light-penetration-due-to-ultrasound-induced-air-bubbles-in-optical-scattering-media
#12
Haemin Kim, Jin Ho Chang
Light is an attractive tool for high spatial- and contrast-resolution imaging, highly sensitive molecular imaging, and target-selective therapy, and it does not exhibit the risks associated with ionizing radiation. The main limitation of using light in clinical applications is its superficial imaging and therapeutic depth caused by high optical scattering in biological media. Here, we demonstrate that the scattering and thus defocusing of the incident light can be alleviated when simultaneously delivered ultrasound generates air bubbles in the pathway of the incident light, thus increasing the light penetration...
November 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158937/connatal-urinary-ascites-in-a-female-preterm
#13
Barbara Brunner, Elisabeth Ralser, Elisabeth D'Costa, Kathrin Maurer, Ursula Kiechl-Kohlendorfer, Elke Griesmaier
Background: Connatal urinary ascites is rare in females without associated malformations and occurs following bladder rupture. Case Presentation: A female very preterm was delivered by caesarean section because of abnormal Doppler findings. The mother suffered from viral pneumonia requiring intensive care in the third trimester of pregnancy. Serial fetal ultrasound examinations showed a megacystis and ascites. Postnatally, pronounced isolated ascites was drained and its urinary nature was confirmed...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29153371/liver-metastases-detection-and-staging
#14
REVIEW
Therese Lincke, Christoph J Zech
The liver is more often involved with metastatic disease than primary liver tumors. The accurate detection and characterization of liver metastases are crucial since patient management depends on it. The imaging options, mainly consisting of contrast-enhanced ultrasound (CEUS), multidetector computed tomography (CT), magnetic resonance imaging (MRI) with diffusion-weighted imaging (DWI), extra-cellular contrast media and liver-specific contrast media as well as positron emission tomography/computed tomography (PET/CT), are constantly evolving...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29151981/cellular-uptake-of-plain-and-spion-modified-microbubbles-for-potential-use-in-molecular-imaging
#15
Mona Ahmed, Barbara Cerroni, Anton Razuvaev, Johan Härmark, Gaio Paradossi, Kenneth Caidahl, Björn Gustafsson
Introduction: Both diagnostic ultrasound (US) and magnetic resonance imaging (MRI) accuracy can be improved by using contrast enhancement. For US gas-filled microbubbles (MBs) or silica nanoparticles (SiNPs), and for MRI superparamagnetic or paramagnetic agents, contribute to this. However, interactions of MBs with the vascular wall and cells are not fully known for all contrast media. Methods: We studied the in vitro interactions between three types of non-targeted air-filled MBs with a polyvinyl-alcohol shell and murine macrophages or endothelial cells...
2017: Cellular and Molecular Bioengineering
https://www.readbyqxmd.com/read/29108077/characterization-of-focal-liver-lesions-using-ceus-and-mri-with-liver-specific-contrast-media-experience-of-a-single-radiologic-center
#16
Lukas Philipp Beyer, Florian Wassermann, Benedikt Pregler, Katharina Michalik, Janine Rennert, Isabel Wiesinger, Christian Stroszczynski, Philipp Wiggermann, Ernst Michael Jung
AIM:  The purpose of this study was to compare contrast-enhanced ultrasound (CEUS), magnetic resonance imaging (MRI) using liver-specific contrast agent and a combination of both for the characterization of focal liver lesions (FLL). METHODS:  83 patients with both benign and malignant liver lesions were examined using CEUS and MRI after the intravenous administration of liver-specific contrast media. All patients had inconclusive results from prior imaging examinations...
December 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29069539/low-intensity-pulsed-ultrasound-stimulation-for-mandibular-condyle-osteoarthritis-lesions-in-rats
#17
Akemi Kanaguchi Arita, Ikuo Yonemitsu, Yuhei Ikeda, Mutsumi Miyazaki, Takashi Ono
OBJECTIVE: This study evaluated low-intensity pulsed ultrasound effects for temporomandibular joint osteoarthritis in adult rats. MATERIAL AND METHODS: Osteoarthritis-like lesions were induced in 24 adult rats' temporomandibular joints with low-dose mono-iodoacetate injections. The rats were divided into four groups: control and mono-iodoacetate groups, injected with contrast media and mono-iodoacetate, respectively, at 12 weeks and observed until 20 weeks; and low-intensity pulsed ultrasound and mono-iodoacetate + low-intensity pulsed ultrasound groups, injected with contrast media and mono-iodoacetate, respectively, at 12 weeks with low-intensity pulsed ultrasound performed from 16-20 weeks...
October 25, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29030579/effect-of-iodinated-contrast-media-on-renal-perfusion-a-randomized-comparison-study-in-pigs-using-quantitative-contrast-enhanced-ultrasound-ceus
#18
Philipp Lamby, Friedrich Jung, Stefanie Graf, Lotte Schellenberg, Johannes Falter, Natascha Platz-da-Silva, Stephan Schreml, Lukas Prantl, Ralf P Franke, Ernst M Jung
The administration of iodinated contrast media (CM) can cause microcirculatory disorder leading to acute renal dysfunction. In a prospective, randomized investigation two CM (Iodixanol vs Iopromide) were compared in 16 pigs. Each animal received 10 intra-aortal injections (5 ml Iodixanol or 4.32 ml Iopromide). Microcirculation was assessed using contrast-enhanced ultrasound (CEUS) directly on the kidney surface using time-to-peak (TTP) and blood-volume-analysis. Macroscopic observations were documented...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28964468/safety-of-contrast-material-use-during-pregnancy-and-lactation
#19
REVIEW
Paulo Puac, Andrés Rodríguez, Carina Vallejo, Carlos A Zamora, Mauricio Castillo
The use of contrast media to image patients who are pregnant has increased during the past decades worldwide. Their use in pregnancy and in patients who are lactating remains a challenging issue for radiologists and other physicians. This article addresses the different types of contrast media that may be used in such patients according to the imaging modality (iodinated contrast media, barium, gadolinium-based, and ultrasound contrast agents), focusing on their adverse effects, potential teratogenic effects, strategies to minimize risks, and current clinical recommendation...
November 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/28964089/ultrasound-propagation-through-dilute-polydisperse-microbubble-suspensions
#20
Nicholas C Ovenden, Jean-Pierre O'Brien, Eleanor Stride
In a fully nonlinear model of wave propagation through bubbly media, computational complexity arises when the medium contains a polydisperse bubble population. This is because a nonlinear ordinary differential equation governing the bubble response must be solved for the current radius of each bubble size present at every spatial location and at every time step. In biomedical ultrasound imaging, commercial contrast agents typically possess a wide range of bubble sizes that exhibit a variety of differing behaviours at ultrasound frequencies of clinical interest...
September 2017: Journal of the Acoustical Society of America
keyword
keyword
75363
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"