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Results 101 - 150 of 2012
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Cho Akihiro - - 2013
In previous reports of laparoscopic pancreaticoduodenectomy, the Kocher maneuver with a wide mobilization of the right colonic flexure is carried out in the early phase, and dissection of the superior mesenteric artery is performed in the last phase of resection. This report describes laparoscopic superior mesenteric artery first approach, in ...
Kim Tae-Hee - - 2013
I thank Prof. Matsubara for his interest in my new procedure of uterine compression using an intrauterine balloon. Postpartum hemorrhage is a substantial burden for obstetricians. Thus, many methods for achieving hemostasis have been developed to preserve the uterus. Although uterine artery embolization is very effective for postpartum hemorrhage, hospitals ...
Azarnoush Kasra - - 2013
Aortic valve stenosis is one of the most common heart diseases in older patients. Nowadays, surgical aortic valve replacement is the 'gold standard' treatment for this pathology and the most implanted prostheses are biological ones. The three most implanted bovine bioprostheses are the Trifecta valve (St. Jude Medical, Minneapolis, MN, ...
Rashid Reza Javad - - 2013
Abstract Introduction: Multidetector-row computed tomography (MDCT) angiography is a reliable technique in preoperative renal anatomy evaluation in live renal donors. Objectives: To investigate the accuracy of early arterial phase findings and compares them with intraoperative findings. Methods: In this prospective study, 100 potential live donors undergoing preoperative MDCT and nephrectomy ...
Ruh Dominic D Gisela and Erwin Sick Chair of Micro-optics, Department of Microsystems Engineering, University of Freiburg, Freiburg, - - 2013
A refined model for the photon energy distribution in a living artery is established by solving the radiative transfer equation in a cylindrical geometry, using the Monte Carlo method. Combining this model with the most recent experimental values for the optical properties of flowing blood and the biomechanics of a ...
van Dijk Suzanne C - - 2013
Indices of arterial stiffness and aortic pressure are usually assessed by applanation tonometry. The more recently introduced oscillometric device is simpler to use. Several studies have investigated the agreement between these two devices, but not in populations with elevated levels of arterial stiffness. Therefore, we evaluated the agreement in an ...
Wu Hao - - 2013
The application of pulmonary valved conduit to reconstruct the continuity between right ventricles and pulmonary artery is one of the major surgeries. This study aimed to establish an in vivo model of in situ implantation using pulmonary valved conduit in large animals under off-pump condition to validate the long-term effects ...
Inoue Yoshito - - 2013
Anomalous origin of the right coronary artery (ARCA) from the left coronary sinus is a rare anatomic anomaly. It may cause myocardial ischemia and sudden death. Several treatments have been tried, including coronary bypass grafting, unroofing, and reimplantation. These techniques, however, have disadvantages such as postoperative flow competition, aortic insufficiency, ...
Qiao Aike - - 2013
We sought to investigate the effects of endovascular stents with different links for treating stenotic vertebral artery and to determine the relationship between the shape of the link and in-stent restenosis (ISR). We also attempted to provide scientific guidelines for stent design and selection for clinical procedures. Models of three ...
Roszelle Breigh N - - 2013
Background: Whether treated surgically or with endovascular techniques, large and giant cerebral aneurysms are particularly difficult to treat. Nevertheless, high porosity stents can be used to accomplish stent-assisted coiling and even standalone stent-based treatments that have been shown to improve the occlusion of such aneurysms. Further, stent assisted coiling can ...
Bayramoğlu Tünzale T Çukurova University, Faculty of Medicine, Department of Cardiology, Adana, - - 2013
Objective: Pulse wave velocity (PWV) and aortic augmentation index (AI) are indicators of arterial stiffness. Pulse wave reflection and arterial stiffness are related to cardiovascular events and sickle cell disease. However, the effect of these parameters on the heterozygous sickle cell trait (HbAS) is unknown. The aim of this study ...
Nikolić Igor M IM Clinic of Neurosurgery, Clinical Center of Serbia, Belgrade, Serbia. - - 2013
Aneurysms in brain blood vessels are expanding bags composed of a neck, body and fundus. Clear visibility of the neck, the position of the aneurysm and surrounding structures are necessary for a proper choice of methods for excluding the aneurysm from the circulation. The aim of this study was to ...
Chung Ju-Hye - - 2013
Epicardial adipose tissue (EAT) is a contributing factor of metabolic syndrome (MS) and coronary artery disease (CAD). However, it is still unclear which measurement location of EAT area best reflects its cardiometabolic risk. The purpose of our study was to investigate the distribution of EAT and its relationship to the ...
Vismara R R Department of Electronic, Information and Bioengineering, Politecnico di Milano, via Golgi 39, Milan 20133, Italy; ForCardioLab, Fondazione per la Ricerca in Cardiochirurgia ONLUS, Milan, Italy. Electronic address: - - 2013
Aortic interleaflet triangle reshaping (AITR) is a surgical approach to aortic valve incontinence that involves placing three stitches at half of the interleaflet triangles height. In this work, the relationship between the actual stitch height and valve functioning, and the safety margin that the surgeon can rely on in applying ...
Liu Yong - - 2013
Previous studies have demonstrated the higher accuracy of frequency-domain optical coherence tomography (FD-OCT) for quantitative measurements in comparison with intravascular ultrasound (IVUS). However, those analyses were based on the cross-sectional images. The aim of this study was to assess the accuracy of FD-OCT for longitudinal geometric measurements of coronary arteries ...
Vijarnsorn Chodchanok - - 2013
Children with right ventricular outflow tract obstructive (RVOTO) lesions require precise quantification of pulmonary artery (PA) size for proper management of branch PA stenosis. We aimed to determine which cardiovascular magnetic resonance (CMR) sequences and planes correlated best with cardiac catheterization and surgical measurements of branch PA size. Fifty-five children ...
Salman Loay - - 2013
Vessel diameter is objectively measured by a lead ruler positioned in the fluoroscopic field and software calibration during angioplasty. We conducted a prospective study to evaluate the accuracy of lead ruler determination of vessel diameter. Chronic hemodialysis patients undergoing an angioplasty procedure were included in this study (n = 37). Vessel diameter ...
Watanabe Shin - - 2013
Aims: To assess when and how the microcatheter-facilitated reverse wire technique should be applied to cross the guidewire into side branches in coronary bifurcations. Methods and results: Three interventional cardiologists with different levels of experience performed in vitro bench testing using an originally developed coronary bifurcation simulator which had six ...
Nilsson Tobias - - 2013
To improve cardiovascular research, there is a growing need for arterial characterization in small animals. We developed a method, ARTIC (arterial characterization) for measuring lumen diameter, distension and intima media thickness (IMT). In this study ARTIC was used to automatically characterize the aorta of premature rabbit pups. Automatic measurements were ...
Lopez-Mendez Maria A - - 2013
Worldwide preeclampsia (PE) is the leading cause of maternal death and affects 5 to 8% of pregnant women. PE is characterized by elevated blood pressure and proteinuria. Doppler Ultrasound (US) evaluation has been considered a useful method for prediction of PE; however, there is no complete data about the most ...
Bonnafy Tiphaine - - 2013
Despite favorable results of randomized studies and several guidelines, screening for abdominal aortic aneurysm is poorly implemented in most countries. In order to implement an effective abdominal aortic aneurysm screening programme, training of physicians other than cardiovascular imaging specialists is necessary. Also, the use of pocket-sized ultrasound systems seems an ...
Ikeda Chikako - - 2013
A new method was developed to harvest bilateral internal thoracic artery grafts using a subxiphoid approach and robotic assistance. The present study compared the potential utility of the subxiphoid method with that of the lateral thoracic approach. The first part of the study examined the optimal placement of the instrument ...
Ko Brian S - - 2013
To determine the accuracy of 320-row multidetector coronary computed tomography angiography (M320-CCTA) to detect functional stenoses using fractional flow reserve (FFR) as the reference standard and to predict revascularisation in stable coronary artery disease. One hundred and fifteen patients (230 vessels) underwent M320-CCTA and FFR assessment and were followed for ...
Washington Chad W - - 2013
Changing landscapes in neurosurgical training and increasing use of endovascular therapy have lead to decreasing exposure in open cerebrovascular neurosurgery. To ensure the effective transition of medical students into competent practitioners, new training paradigms must be developed. Using principles of pattern recognition, a classification scheme for middle cerebral artery bifurcation ...
Rahal Jason P JP Cerebrovascular and Endovascular Division, Department of Neurosurgery, Tufts Medical Center and Tufts University School of Medicine, 800 Washington Street #178, Proger 7, Boston, MA 02111, - - 2013
Several stent-supported coiling techniques have been devised for treating wide-necked bifurcation aneurysms including the Y-stent and waffle-cone constructs. The Y-stent technique is not technically possible with obtusely oriented daughter vessels, and the waffle-cone method is inadequate for aneurysms with necks exceeding the stent's maximal expansion diameter. We describe here the ...
Clouet J - - 2013
This study has two aims. The first is to compare conventional lipiodol chemo-embolization (Trans Arterial Chemo-Embolization - TACE) to one using pre-loaded particles (Trans Arterial Chemo-Embolisation-Drug Eluted Bead - TACE-DEB) using a cost minimization study. The second is to define the fundable nature of TACE-DEB and the conditions under which ...
Kanber Baris - - 2013
The purpose of this study was to determine whether surface irregularities measured from ultrasound images of carotid artery plaques and quantified using a novel method, correlate with the presence of ipsilateral hemispheric cerebrovascular symptoms. A plaque surface irregularity index (SII) was measured in 47 carotid artery plaques (32 subjects, stenosis ...
Forkert N D - - 2013
Objectives: The cerebroarterial system is a complex network of arteries that supply the brain cells with vitally important nutrients and oxygen. The inter-individual differences of the cerebral arteries, especially at a finer level, are still not understood sufficiently. The aim of this work is to present a statistical cerebroarterial atlas ...
Kono Kenichi - - 2013
In Y-stent-assisted coil embolization for cerebral aneurysms, open or closed cell stents are used. Different microcatheters for coil insertion are available. We investigated which microcatheter could be navigated into an aneurysm through a Y-stent with different stents. Double Neuroform open-cell stents or double Enterprise closed-cell stents were deployed in Y-configuration ...
Møller-Sørensen H - - 2013
Echocardiography is increasingly becoming an integrated tool for circulatory evaluation in the intensive care unit and the operating room. Therefore, it is imperative to know the reproducibility of measurements obtained by echocardiography. In this study, a comparison of cardiac output (CO) measurements obtained with transesophageal echocardiography (TEE) and pulmonary artery ...
Gonzales Joaquin U - - 2013
To test the hypothesis that volume or intensity of daily ambulatory activity would associate with greater large artery compliance in healthy untrained adults. Cross-sectional study. Forty-five recreationally active young adults (22±3yr, 51% women) wore an accelerometer for 5.3±1.3 days for determination of average daily steps (volume) and 30-min peak stepping ...
Muradi Akhmadu - - 2013
Acute spontaneous and isolated dissection of the iliofemoral artery is an extremely rare entity. Conservative, surgical, and endovascular treatment have been used to treat such cases. To the best of our knowledge we report the first case of using hybrid management to successfully treat isolated external iliac artery dissection extending ...
Saba Luca - - 2013
OBJECTIVE. The purpose of this study was to compare the type of plaque and the degree of stenosis in the carotid artery bifurcation and the carotid siphon to explore potential correlations between these parameters. MATERIALS AND METHODS. A total of 119 patients (87 men, 32 women; mean age, 69 years) ...
Subasi Irmak Durur - - 2013
A 76-year-old woman was referred to our hospital for evaluation of a parathyroid adenoma, detected on sonography. It had been located posteroinferiorly to the right thyroid lobe. Parathyroid scintigraphy confirmed the right inferior parathyroid adenoma. During physical examination of the neck, a pulsatile mass in the anterior inferior right was ...
Lipponen Jukka A - - 2013
Continuous electrocardiogram, blood pressure and carotid artery ultrasound video were analyzed from 15 diabetics and 28 healthy controls. By using these measurements artery elasticity, overall baroreflex sensitivity (BRS) assessed between RR and systolic blood pressure variation, and neural BRS assessed between RR and artery diameter variation were estimated. In addition, ...
Uehara Yoshiki - - 2013
We present a case of stenoses in the right coronary artery with a previously deployed stent showing gross protrusion into the aorta. Despite difficulty in cannulation of a guiding catheter into the coronary artery, percutaneous intervention was accomplished using a novel technique to engage the protruding stent. © 2013 Wiley ...
Ziadinov Edem - - 2013
Proper detection of the deeply embedded left anterior descending artery remains a challenge. Many authors proposed different methods for artery identification, such as ultrasound Doppler, cineangiography, retrograde dissection overlying tissues, and exposure over the probe. Choice of the technique often depends on the surgeon's acquaintance and experience. The article compares ...
Zumofen Daniel W DW Bernard and Irene Schwartz Interventional Neuroradiology Section, Department of Radiology, NYU Langone Medical Center, New York University School of Medicine, 660 First Avenue, 7th Floor, New York, NY 10016, USA; Department of Neurosurgery, NYU Langone Medical Center, New York University School of Medicine, New York, NY, USA. Electronic address: - - 2013
We report a case of temporary Solitaire FR stent (Covidien, Mansfield, MA, USA) scaffolding to reduce coil herniation during embolization of a large neck anterior communicating artery aneurysm. In contrast to classic stent-assisted coiling, the fully retrievable stent is recaptured prior to detachment of the last coil. The presented technical ...
Jones Robert G - - 2013
<sec id="st1"><title>ABSTRACT</title> <bold><italic>Introduction:</italic></bold> Loss of arteriovenous fistula as access for hemodialysis leads to significant morbidity and increased mortality risk. <bold><italic>Methods:</italic></bold> Maintenance of this access is of paramount importance and we describe a case of a patient with a functioning radiocephalic fistula with associated arm swelling due to poor narrow caliber ...
Oppermann Johannes - - 2013
The purpose of our study was to systematize the arterial supply of the talus and characterize the vessel damage occurring in the talus after total ankle replacement. Previous studies exist using vascular injection to visualize the topic [Giebel et al. (Surg Radiol Anat 19:231-235, 1997); Mulfinger and Trueta (J Bone ...
Soudah Eduardo - - 2013
An aortic dissection (AD) is a serious condition defined by the splitting of the arterial wall, thus generating a secondary lumen [the false lumen (FL)]. Its management, treatment and follow-up are clinical challenges due to the progressive aortic dilatation and potentially severe complications during follow-up. It is well known that ...
Saba Luca - - 2013
To develop a semiautomatic method based on level set method (LSM) for carotid arterial wall thickness (CAWT) measurement. Magnetic resonance imaging (MRI) of diseased carotid arteries was acquired from 10 patients. Ground truth (GT) data for arterial wall segmentation was collected from three experienced vascular clinicians. The semiautomatic variational LSM ...
Akkus Zeynettin - - 2013
As carotid intra-plaque neovascularization (IPN) is linked to progressive atherosclerotic disease and plaque vulnerability, its accurate quantification might allow early detection of plaque vulnerability. We therefore developed several new quantitative methods for analyzing IPN perfusion and structure. From our analyses, we derived six quantitative parameters-IPN surface area (IPNSA), IPN surface ...
Ali Murtaza Najabat - - 2013
Oesophageal cancer is the ninth leading cause of malignant cancer death and its prognosis remains poor, ranking as the sixth most frequent cause of death in the world. This research work aims to adopt an Auxetic (rotating-squares) geometry device, that had previously been examined theoretically and analysed by Grima and ...
Hoellering Adam B - - 2013
To compare the cardiac silhouette method with the vertebral body method in predicting the umbilical venous catheter tip position on ultrasound; to measure the length of the target zone for the umbilical venous catheter tip; and to determine the time taken for a neonatologist to ascertain position of the umbilical ...
Hiramoto Jun - - 2013
Kamiyama introduced a unique method of temporary cerebral revascularization using a radial artery graft (RAG) in his technical review. We tried original method with Sugita frame, and pointed out some disadvantages that include to avoid taking instruments or hands in and out, stability of hands, and unrestricted usage of brain ...
Lee Youn Joo - - 2013
There are very few reports assessing in-stent restenosis (ISR) after vertebral artery ostium (VAO) stents using multidetector computed tomography (MDCT). To compare the diagnostic accuracy of computed tomography angiography (CTA) using 64-slice MDCT with digital subtraction angiography (DSA) for detection of significant ISR after VAO stenting. The study evaluated 57 ...
Paryab Nasim - - 2013
Helical polymeric stents have been proposed as a suitable geometry for biodegradable drug-eluting polymer-based stents. However, helical stents often experience nonuniform local expansion (dog boning), which can prohibit full stent expansion using conventional methods. The development of stents and deployment methods is challenging and can be supported by numerical analysis; ...
Yoshioka Hideyuki - - 2013
Neck clipping of a large middle cerebral artery aneurysm was performed using a newly developed surgical microscope integrated with modules for both indocyanine green (ICG) and fluorescein videoangiography. During surgery, ICG and fluorescein videoangiography by intra-arterial or intravenous injection were safely carried out without interrupting the surgical procedure. Based on ...
Condino S - - 2013
The purpose of this in vitro study was to clinically assess the feasibility of a three-dimensional (3D) electromagnetic (EM) navigator, including sensorized catheters and guidewires, to determine any reduction in radiation dose and contrast medium injection. The study was performed using a navigator prototype developed at the EndoCAS center. The system ...
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