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https://www.readbyqxmd.com/read/28642205/radial-endoscopic-ultrasound-for-the-diagnosis-of-chronic-schistosomiasis-in-the-colorectum
#1
Chun-Hua Zhou, Wei-Xia Zhou, Duan-Min Hu
No abstract text is available yet for this article.
June 19, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28636520/radial-artery-occlusion-incidence-predictors-and-long-term-outcome-after-transradial-catheterization-clinico-doppler-ultrasound-based-study-rail-trac-study
#2
Santosh Kumar Sinha, Mukesh Jitendra Jha, Vikas Mishra, Ramesh Thakur, Amit Goel, Ashutosh Kumar, Avinash Kumar Singh, Mohit Sachan, Chandra Mohan Varma, Vinay Krishna
Background and aim The purpose of this study was to assess incidence, predictors and outcome of radial artery occlusion (RAO) after transradial catheterization (TRC) based on clinical and Doppler ultrasound study. Methods A total of 1,945 consecutive patients undergoing transradial catheterization for diagnostic evaluation or intervention were included. Radial artery examination was based on palpation and colour Doppler study on the day before, 1 day (D1), 1 month (D30) and 6 months (D180) following the procedure...
March 30, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28636509/evaluation-of-endothelial-dysfunction-with-flow-mediated-dilatation-after-transradial-coronary-angiography
#3
Bahar T Tak, Kevser G Balci, Hilal Erken, Demet M Gerede, Sercan Tak, Hüseyin Göksülük, Sibel Turhan, Çetin Erol
Objective Transradial coronary angiography (TRCA) may lead to endothelial dysfunction. Therefore, this study investigated the TRCA-related endothelial dysfunction and its relation to operator experience, the number of punctures and procedure duration. Methods and results A total of 57 patients (42 males and 17 females) who underwent TRCA were included in this single-centre study. Nine months after the procedure, all patients underwent radial artery B-mode ultrasound imaging, and flow-mediated dilatation (FMD) and nitroglycerin-mediated dilatation (NMD) techniques were employed...
March 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28626939/technical-note-a-3-d-rendering-algorithm-for-electromechanical-wave-imaging-of-a-beating-heart
#4
Pierre Nauleau, Lea Melki, Elaine Wan, Elisa Konofagou
PURPOSE: Arrhythmias can be treated by ablating the heart tissue in the regions of abnormal contraction. The current clinical standard provides electroanatomic 3- D maps to visualize the elec-trical activation and locate the arrhythmogenic sources. However, the procedure is time-consuming and invasive. Electromechanical Wave Imaging is an ultrasound- based non-invasive technique that can provide 2-D maps of the electromechanical activation of the heart. In order to fully visualize the complex 3-D pattern of activation, several 2-D views are acquired and processed separately They are then manually registered with a 3-D rendering software to generate a pseudo-3-D map However, this last step is operator-dependent and time-consuming...
June 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28616563/low-rate-of-access-site-complications-after-transradial-coronary-catheterization-a-prospective-ultrasound-study
#5
Violeta Mattea, Carsten Salomon, Niels Menck, Philipp Lauten, Frank Michael Malur, Anja Schade, Frank Steinborn, Lisa Costello-Boerrigter, Axel Neumeister, Harald Lapp
BACKGROUND: Transradial artery (TRA) left heart catheterization is an increasingly used technique for both diagnostic and interventional coronary procedures. This study evaluates the incidence of access site complications in the current interventional era. METHODS AND RESULTS: A total of 507 procedures were performed under standardized conditions. Each procedure was performed using high levels of anticoagulation, hydrophilic sheaths, and short post-procedural compression times...
March 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28606283/-assessment-of-the-radial-and-ulnar-arteries-hemodynamic-changes-by-ultrasound-in-patients-with-primary-palmar-hyperhidrosis-after-thoracic-sympathetic-block
#6
Y Fei, M M Xu, B Huang, K Y Xie, H D Ni, L Zhang, H P Zhang, M Yao
Objective: To evaluate the value of radial and ulnar arteries hemodynamic changes by ultrasound in patients with primary palmar hyperhidrosis after thoracic sympathetic block. Methods: This was a prospective study, from January 2016 to September 2016, 23 patients with primary palmar hyperhidrosis were admitted to the First Hospital of Jiaxing City, Zhejiang Province, 92 arteries of these patients who underwent thoracic sympathetic block were enrolled into this study. Diameters, peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive index (RI) of the radial and ulnar arteries were examined one day before and after the operation by color Doppler ultrasound...
June 13, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28604990/ultrasound-guided-radial-artery-catheterisation-increases-the-success-rate-among-anaesthesiology-residents-a-randomised-study
#7
Nigopan Gopalasingam, Marlene A Hansen, Sofie Thorn, Erik Sloth, Peter Juhl-Olsen
INTRODUCTION: The palpation technique is generally used for radial artery catheterisation, but is associated with a high rate of failure and complications. Dynamic needle tip positioning (DNTP) is a new ultrasound-guided technique. We aimed to compare the traditional palpation technique with DNTP performed by four anaesthesiology residents. METHODS: The study was a randomised, controlled, patient-blinded, crossover study. Fourty patients underwent bilateral radial artery catheterisation using both techniques...
June 6, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28601739/application-of-random-forest-radial-basis-function-neural-networks-and-central-composite-design-for-modeling-and-or-optimization-of-the-ultrasonic-assisted-adsorption-of-brilliant-green-on-zns-np-ac
#8
M H Ahmadi Azqhandi, M Ghaedi, F Yousefi, M Jamshidi
Two machine learning approach (i.e. Radial Basis Function Neural Network (RBF-NN) and Random Forest (RF) was developed and evaluated against a quadratic response surface model to predict the maximum removal efficiency of brilliant green (BG) from aqueous media in relation to BG concentration (4-20mgL(-1)), sonication time (2-6min) and ZnS-NP-AC mass (0.010-0.030g) by ultrasound-assisted. All three (i.e. RBF network, RF and polynomial) model were compared against the experimental data using four statistical indices namely, coefficient of determination (R(2)), root mean square error (RMSE), mean absolute error (MAE) and absolute average deviation (AAD)...
May 27, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28600019/safety-and-efficacy-outcomes-of-second-generation-everolimus-eluting-stents-in-octogenarians-compared-to-non-octogenarians
#9
Hironori Kitabata, Takashi Kubo, Kazuya Mori, Yasunori Yamamoto, Manabu Kashiwagi, Yu Arita, Takashi Tanimoto, Takashi Akasaka
BACKGROUND: In patients ≥80 years of age, the use of second-generation cobalt-chromium everolimus-eluting stents (CoCr-EES) versus bare-metal stents has been shown to reduce myocardial infarction (MI) and target vessel revascularization (TVR) rates, without an increase in bleeding. However, safety and efficacy of CoCr-EES in octogenarians compared to younger populations are less certain. We aimed to compare the clinical outcomes between octogenarian and non-octogenarian patients undergoing percutaneous coronary intervention (PCI) with CoCr-EES...
June 1, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28587366/investigation-of-the-predictive-value-of-speckle-tracking-imaging-for-the-assessment-of-cardiac-function-and-clinical-prognosis-in-patients-with-hypercholesterolemia
#10
Ling Zhang, Xiaoxu Chen
The predictive value of speckle tracking imaging (STI) for the assessment of cardiac function and clinical prognosis in patients with hypercholesterolemia was explored. One hundred forty-seven patients with hypercholesterolemia diagnosed in our hospital and 137 healthy adults from our health examination center over the same period were included in this study. Using STI and color Doppler ultrasound, we carried out follow-up of cardiac function in patients with hypercholesterolemia and statistical analysis based on collected data...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28575496/comparison-of-the-acute-effect-of-radial-shock-wave-therapy-and-ultrasound-therapy-in-the-treatment-of-plantar-fasciitis-a-randomized-controlled-study
#11
Bihter Akinoglu, Nezire Köse, Nuray Kirdi, Yavuz Yakut
Objective. : This study compared the effectiveness of radial extracorporeal shock wave therapy (r-ESWT) with ultrasound (US) therapy in the treatment of plantar fasciitis (PF). Study Design. : Level II, randomized controlled study. Design. : A total of 54 female patients with unilateral PF were randomly assigned to two study groups and one control group. All groups performed home exercises. In addition, the first study group received three sessions of r-ESWT treatment and the second study group received seven sessions of US treatment...
May 29, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28560040/spatially-segmented-undersampled-mri-temperature-reconstruction-for-transcranial-mr-guided-focused-ultrasound
#12
Pooja Gaur, Beat Werner, Xue Feng, Samuel W Fielden, Craig H Meyer, William A Grissom
BACKGROUND: Volumetric thermometry with fine spatiotemporal resolution is desirable to monitor MR-guided focused ultrasound (MRgFUS) procedures in the brain, but requires some form of accelerated imaging. Accelerated MR temperature imaging methods have been developed that undersample k-space and leverage signal correlations over time to suppress the resulting undersampling artifacts. However, in transcranial MRgFUS treatments, the water bath surrounding the skull creates signal variations that do not follow those correlations, leading to temperature errors in the brain due to signal aliasing...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28553852/an-anatomical-study-of-additional-radial-wrist-extensors-including-a-unique-extensor-carpi-radialis-accessorius
#13
Charles Timothy West, David Ricketts, Cecilia Brassett
BACKGROUND: In this study, 82 forearms from 41 cadavers were dissected to establish the incidence of variant additional radial wrist extensors. Three variants have been described in the literature: extensor carpi radialis intermedius (ECRI), extensor carpi radialis accessorius (ECRA) and extensor carpi radialis tertius (ECRT). MATERIALS AND METHODS: Of the 41 cadavers studied, 5/41 (12%) had an additional radial wrist extensor. Of these 5 individuals, 2 had bilateral additional muscles and 3 were unilateral...
May 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28552240/manual-heating-of-the-radial-artery-balbay-maneuver-to-facilitate-radial-puncture-prior-to-transradial-coronary-catheterization
#14
Sefa Ünal, Burak Açar, Çağrı Yayla, Mustafa Mücahit Balci, Ahmet Göktuğ Ertem, Meryem Kara, Orhan Maden, Ahmet Temizhan, Muharrem Tola, Yücel Balbay
OBJECTIVE: Transradial access is widely used for both diagnostic and interventional cardiac procedures. The use of transradial access offers several advantages, including decreased bleeding, fewer vascular complications, and reduced length of hospital stay and cost. However, the small size of the radial artery limits the size of the equipment that can be used via this approach. In this study we sought to investigate whether preprocedural manual heating of the radial artery facilitates radial artery puncture...
May 25, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28543090/association-of-pulse-pressure-with-left-ventricular-geometry-and-function-in-elderly-nonhypertensive-patients-with-diabetes-a-3d-speckle-tracking-echocardiography-study
#15
Qingqing Wang, Kaibin Tan, Hongmei Xia, Yunhua Gao
PURPOSE: The aims of this study were to investigate and compare the left ventricular (LV) geometry and function in elderly nonhypertensive type 2 diabetic patients with normal (NPP, <60 mm Hg) and with high (HPP, ≥60 mmHg) 24-hour pulse pressure, and to explore the independent predictors of LV strain values in these patients. METHODS: A total of 76 elderly nonhypertensive type 2 diabetic patients with normal (≥55%) LV ejection fraction (LVEF) were included, 36 of whom had HPP...
May 22, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28527820/adventitial-cystic-disease-of-radial-artery-apropos-of-a-case-and-review-of-literature
#16
Álvaro Torres-Blanco, Luis Ariel Pepén-Moquete, Vicente Molina-Nácher, Francisco Gómez-Palonés
Adventitial cystic disease is an uncommon condition that is characterized by the collection of mucinous material that accumulates in the adventitial layer of the artery. Predominantly, this entity affects the popliteal artery, whereas it is extremely rare in the radial artery. We report a 72-year-old female patient that underwent surgical treatment of an adventitial cyst of the right radial artery. The involved arterial segment was resected, and reconstruction by means of the interposition of a saphenous vein graft was performed...
May 11, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28524032/-preoperative-risk-factors-analysis-of-pulmonary-hypertension-crisis-during-perioperative-period-for-caesarean-section-of-woman-with-severe-pulmonary-hypertension
#17
Chunlei Zhang, Yaguang Liu, Enming Qing, Jun Ma
OBJECTIVE: To analyze preoperative risk factors of perioperative pulmonary hypertension crisis (PHC) for pregnant woman with severe pulmonary artery hypertension (PAH), and approach its clinical value. METHODS: A retrospective analysis was conducted. The clinical data from 152 pregnant women with severe PAH underwent cesarean delivery admitted to Beijing Anzhen Hospital from January 1st 2008 to December 31st 2016 was collected. The patients were divided into two groups according to with perioperative PHC or not...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28521772/feasibility-and-relevance-of-compound-strain-imaging-in-non-stenotic-arteries-comparison-between-individuals-with-cardiovascular-diseases-and-healthy-controls
#18
Martijn F H Maessen, Thijs M H Eijsvogels, Ayla Grotens, Maria T E Hopman, Dick H J Thijssen, Hendrik H G Hansen
BACKGROUND: Compound strain imaging is a novel method to noninvasively evaluate arterial wall deformation which has recently shown to enable differentiation between fibrous and (fibro-)atheromatous plaques in patients with severe stenosis. We tested the hypothesis that compound strain imaging is feasible in non-stenotic arteries and provides incremental discriminative power to traditional measures of vascular health (i.e., distensibility coefficient (DC), central pulse wave velocity [cPWV], and intima-media thickness [IMT]) for differentiating between participants with and without a history of cardiovascular diseases (CVD)...
May 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28509682/new-neurosurgical-approaches-for-tremor-and-parkinson-s-disease
#19
Alfonso Fasano, Andres M Lozano, Esther Cubo
PURPOSE OF REVIEW: The objective of this review is to gather the newest advances in the surgical treatment of tremor and Parkinson's disease. We will briefly discuss the potential applications of the new technologies of deep brain stimulation (DBS), and we will focus on MRI-guided focused ultrasound (MRgFUS). RECENT FINDINGS: Novel DBS devices are being progressively adopted, particularly electrodes allowing a longer stimulating surface (suitable for multiple targets stimulation) and current radial steering (to minimize side effects of stimulation)...
May 13, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28504278/high-frequency-linear-rheology-of-hydrogels-probed-by-ultrasound-driven-microbubble-dynamics
#20
Akaki Jamburidze, Marco De Corato, Axel Huerre, Angelo Pommella, Valeria Garbin
Ultrasound-driven microbubble dynamics are central to biomedical applications, from diagnostic imaging to drug delivery and therapy. In therapeutic applications, the bubbles are typically embedded in tissue, and their dynamics are strongly affected by the viscoelastic properties of the soft solid medium. While the behaviour of bubbles in Newtonian fluids is well characterised, a fundamental understanding of the effect on ultrasound-driven bubble dynamics of a soft viscoelastic medium is still being developed...
May 31, 2017: Soft Matter
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