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Kan Jing J Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, - - 2014
Angiographic evaluation of left main coronary artery (LMCA) bifurcation lesions is often limited. two dimensional (2D) quantitative coronary angiography (QCA) with segmental analysis provides accuracy for quantification of the degree of stenosis in the main vessel and side branch ostium but can be affected by foreshortening and variable magnification. The ...
Dangoisse Vincent V C H U Mont Godinne UCL , Yvoir , - - 2014
Abstract Delivery of coronary stents can be challenging, but the use of a second or 'buddy' wire helps the progression of equipment through tortuous and rigid vessels. We successfully positioned a coronary stent in a distal lesion, intentionally jailing the buddy wire during stent delivery. The jailed wire was then ...
Oizumi Hiroyuki H Second Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, - - 2014
Pulmonary segmentectomy is generally acknowledged to be more technically complex than lobectomy. Three-dimensional computed tomography (3D CT) angiography is useful for understanding the pulmonary arterial and venous branching, as well as planning the surgery to secure adequate surgical margins. Comprehension of the intersegmental and intrasegmental veins makes the parenchymal dissection ...
Ural Alper V AV Faculty, Department of Cardiology, Bakirkoy Education and Research Hospital , Istanbul, Turkey - - 2014
Here in we are reporting a 35-year-old pregnant, hypertensive woman with a strict descending aorta coarctation. She had two missing pregnancies which were complicated with hypertension, but which were not diagnosed for any pathologies before. We diagnosed coarctation of aorta, but however postponed her treatment after delivery of baby, because ...
Tremblay Catherine C Université Laval, Dept. of Mechanical Engineering, Quebec, Quebec, Canada ; - - 2014
Tissue engineering appears as a promising option to create new heart valve substitutes able to overcome the serious drawbacks encountered with mechanical substitutes or tissue valves. The objective of this paper is to present the construction method of a new entirely biological stentless aortic valve using the self-assembly method and ...
Wei-Wei Wu W Department of Vascular Surgery, PUMC Hospital, CAMS and PUMC, Beijing 100032, - - 2014
Objective To construct an experimental abdominal aortic aneurysm(AAA)swine model with Dacron patch for evaluating endovascular aneurysm repair(EVAR)technique.Methods The experimental pigs were generally anesthetized for the open procedure of an aneurysm model creation with Dacron and subsequent arteriography and EVAR with stent graft.Repeat arteriography was performed after 3-month follow-up.Results AAA models ...
Vilchez-Monge A L AL Hospital General Universitario Gregorio Marañón, Madrid (Spain):2 Department of Statistics. Instituto de Investigación Sanitaria Gregorio, Marañón - - - 2014
Background: Liver transplantation (LT) implies hemodynamic instability, making invasive monitoring of cardiac output (CO) mandatory. Intermittent thermodilution with pulmonary artery catheter (PAC) remains the clinical gold standard to measure CO. The agreement between PAC and new monitoring methods in LT needs to be further investigated. Our aim is to clarify ...
Chubb H H Department of Congenital Cardiology, Evelina London Children's Hospital, London, UK; King's College London, London, UK; Work performed at Evelina London Children's Hospital, - - 2014
Objectives: The pulmonary valve (PV) annulus is routinely measured angiographically in PV stenosis prior to balloon dilation. We sought to establish whether this radiation exposure is justified, or whether echocardiographic measurements prior to the procedure are sufficient to guide balloon selection. Background: Previous studies have found a strong correlation between ...
Chang Sung Soo SS Department of General Thoracic, Breast, and Endocrinological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, - - 2014
The prognosis of patients with emphysema is poor as there is no truly effective treatment. Our previous study showed that the alveolar space was smaller and the microvessel density was higher in a canine emphysema model after the intrapulmonary arterial administration of gelatin microspheres slowly releasing basic fibroblast growth factor ...
Sander C Hällsjö CH Department of Anaesthesiology, Surgical Services and Intensive Care Medicine, Karolinska University Hospital, Solna SE-171 76, - - 2014
/st>It is important to be able to accurately monitor cardiac output (CO) during high-risk surgery and in critically ill patients. The invasiveness of the pulmonary artery catheter (PAC) limits its use, and therefore, new minimally invasive methods for CO monitoring are needed. A potential method is estimation of CO from ...
Murasato Yoshinobu Y Department of Cardiovascular Medicine, Heart Center, New Yukuhashi Hospital, Yukuhashi, - - 2014
Aims: To define the optimal kissing balloon inflation (KBI) after single-stent deployment in a coronary bifurcation model. Methods and results: We deployed stents in main vessels (MV) followed by KBI in various conditions and compared the stent configurations. A) KBI at the operator's discretion vs. under the guidelines of minimal ...
Descalzo M M Unidad de Imagen, Clínica Creu Blanca, Barcelona, España; Unidad de Imagen Cardiaca, Servicio de Cardiología, Hospital de la Santa Creu i Sant Pau, Barcelona, España. Electronic address: - - 2014
To confirm the value of the coronary artery calcium (CAC) score as an indicator of significant coronary artery disease (CAD) in the asymptomatic Spanish population, using noninvasive coronary angiography by multidetector computed tomography (MDCT). This was a retrospective study of 232 asymptomatic individuals, referred for a cardiovascular health checkup that ...
Miyairi Satoshi S Department of Cardiovascular Surgery, Seirei Hamamatsu General Hospital, Hamamatsu, - - 2014
Despite improvements in bioprosthetic valve function, increased human life-expectancy has led to a growing number of bioprosthetic valve deterioration cases requiring reoperation. We report 2 cases of primary tissue failure of a bioprosthetic valve, which were treated by mitral valve replacement using the valve-on-valve method. The reasons for the reoperations ...
Qiao Aike A a Center of Cardiovascular Medical Engineering, College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P.R. - - 2014
It was found that bypass graft alone could achieve great effects in treating aortic dissection. In order to investigate the mechanical mechanism and the haemodynamic validity of the bypassing treatment for DeBakey III aortic dissection, patient-specific models of DeBakey III aortic dissection treated with different bypassing strategies were constructed. One ...
Lee Chang-Joon CJ The Australian School of Advanced Medicine, Macquarie University, Sydney, NSW, - - 2014
Flow-diverting stents occlude aneurysms by diverting the blood flow from entering the aneurysm sac. Their effectiveness is determined by the thrombus formation rate, which depends greatly on stent design. The aim of this study was to provide a general framework for efficient stent design using design optimization methods, with a ...
Chiastra Claudio C Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, - - 2014
Although stenting is the most commonly performed procedure for the treatment of coronary atherosclerotic lesions, in-stent restenosis (ISR) remains one of the most serious clinical complications. An important stimulus to ISR is the altered hemodynamics with abnormal shear stresses on endothelial cells generated by the stent presence. Computational fluid dynamics ...
Patel Tejas T Apex Heart Institute, Ahmedabad, India; Department of Cardiology, Sheth V.S. General Hospital and Smt. N.H.L. Municipal Medical College, Ahmedabad, 380 006, - - 2014
Objectives: The aim of this review is to discuss different methods of working through subclavian, innominate and aortic arch anatomical challenges in order to increase the success rate of transradial approach (TRA). Background: Anatomical challenges in the subclavian, innominate and aortic arch regions are important reasons for failure of TRA. ...
Lu L L Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, - - 2014
Objective: To evaluate dual-energy CT (DECT) findings of pulmonary ischaemic-reperfusion injury (PIRI) and its pathophysiological correlation in the canine model. Methods: A PIRI model was established in 11 canines, utilizing closed pectoral balloon occlusion. Two control canines were also included. For the PIRI model, the left pulmonary artery was occluded ...
Gupta Ajay A From the Departments of Radiology (A.G., H.B., P.C.S.) and Neurology (H.K., A.M.), Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York; Department of Public Health, Weill Cornell Medical College, New York, NY (A.P., A.D., P.C.S.); and Department of Neurology, Columbia University Medical Center, NewYork-Presbyterian Hospital, New York - - 2014
Increasing evidence suggests that carotid artery imaging can identify vulnerable plaque elements that increase stroke risk. We correlated recently proposed markers, soft and hard plaque thickness measurements on axial computed tomography angiography source images, with symptomatic disease status (ipsilateral stroke or transient ischemic attack) in high-grade carotid disease. Soft plaque ...
Ferring Martin M 1 Department of Renal Medicine, Worcester Acute Hospitals NHS Trust, Worcester - - - 2014
<sec id="st1"><title>ABSTRACT</title> <bold><italic>Aim:</italic></bold> The aim of this article is to assess the accuracy of early clinical and ultrasound (US) examination in terms of predicting arteriovenous fistula (AVF) dialysis use. <bold><italic>Methods:</italic></bold> Physical and US examination of patent AVF was performed 4 weeks after fistula creation. AVF dialysis use was defined as ...
Duran Cassidy C The Methodist DeBakey Heart & Vascular Center, Houston, TX. Electronic address: - - 2014
The success of remotely steerable catheters designed for cardiac ablation procedures in the peripheral vasculature (in the laboratory and in highly select live cases) has led to the development of a vascular robotic system designed specifically for use in the arterial and venous systems. Limited bench-top and animal testing has ...
Black Ashley A Department of Thoracic and Cardiovascular Surgery, University of Florida, Gainesville, - - 2014
Sternal reentry for ascending aorta pseudoaneurysm repair presents a formidable challenge because of the risk of aneurysm rupture and hemorrhage. We describe two cases of large pseudoaneurysms at high risk for rupture during sternal reentry in which the chest was safely entered by use of an anterior sternal retraction technique. ...
Kim Chang-Young CY Department of Thoracic and Cardiovascular Surgery, Inje University Ilsan Paik Hospital, Inje University College of Medicine, - - 2014
It is expected that the stent graft will become an alternative method for treating aortic diseases or reducing the extent of surgery; therefore, thoracic endovascular aortic repair has widened its indications. However, it can have rare but serious complications such as paraplegia and retrograde type A aortic dissection. Here, we ...
Zhao Lin-Bo LB Department of Radiology and Research Institute of Radiology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea. ; Department of Radiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, - - 2014
Problem with embolization of arteriovenous fistula (AVF) with liquid embolic agent is its over-penetration into the veins or regurgitation to the proximal feeder without reaching the shunt point. We present a technique that controls the flow of AVF during embolization. Two microcatheter technique consists of positioning one microcatheter close to ...
Nakamura Yoshihiro Y Department of Pediatrics, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8655, Tokyo, - - 2014
It was analyzed in normal physiological arteries whether the least energy principle would suffice to account for the radius exponent x. The mammalian arterial system was modeled as two types, the elastic or the rigid, to which Bernoulli's and Hagen-Poiseuille's equations were applied, respectively. We minimized the total energy function ...
Raghavan Madhavan L ML Department of Biomedical Engineering, University of Iowa, Iowa City, IA, 52242, USA, - - 2014
The International Study of Unruptured Intracranial Aneurysms (ISUIA) is an epidemiologic international study of the natural history of unruptured intracranial aneurysms that enrolled 4,060 subjects. A conventional biplane cerebral angiogram available for central review was required for enrollment resulting in a large database. Data on aneurysms that ruptured during follow-up ...
Eburdery Harold H Plastic and Reconstructive Surgery Unit, CHU Toulouse Rangueil, 1 avenue Jean Poulhès, 31400, Toulouse, France, - - 2014
The main vessels in an injured leg can be spared with perforator-to-perforator anastomosis. However, supermicrosurgery is not a routine procedure for all plastic surgeons. Our objective was to establish if the diameter of the perforators of the leg could allow anastomosis with standard microsurgical procedures. Twenty lower legs harvested from ...
Govindaraju Kalimuthu K Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, Malaysia. Electronic address: - - 2014
Functional assessment of a coronary artery stenosis severity is generally assessed by fractional flow reserve (FFR), which is calculated from pressure measurements across the stenosis. The purpose of this study is to investigate the effect of porous media of the stenosed arterial wall on this diagnostic parameter. To understand the ...
Gaha M M From the Department of Radiology (M.G., C.R., G.G., A.W., D.R., M.C., J.R.), Centre Hospitalier de l'Université de Montréal Notre-Dame Hospital, Montreal, Quebec, Canada; Service de Radiologie (L.E.), Hôpital Maison Blanche, CHU Reims, France; and Department of Mathematics and Statistics (M.C.), Université de Montréal, Montreal, Quebec, - - 2014
Angiographic results are commonly used as surrogate markers of the success of intra-arterial therapies for acute stroke. Inter- and intraobserver agreement in judging angiographic results remain poorly characterized. Our goal was to assess 2 commonly used revascularization scales. A portfolio of 148 pre- and post treatment images of 37 cases ...
Ichikawa Tsuyoshi T Department of Neurosurgery, Fukushima Red Cross - - 2014
Intra-arterial fluorescence angiography from a catheter inserted into the external carotid artery (ECA) via the superficial temporal artery (STA) allowed us to satisfactorily evaluate cerebral arterial and venous blood flow. We report this novel method that allowed for repeated angiography within minutes with a low risk of complications due to ...
Aminian Adel A Adel Aminian, Jacques Lalmand, Dariouch Dolatabadi, Division of Cardiology, Centre Hospitalier Universitaire de Charleroi, 6000 Charleroi, - - 2014
Several recent reports have described the occurrence of longitudinal stent deformation (LSD, defined as the distortion or shortening of a stent along the longitudinal axis), following its successful deployment. However, few reports have described LSD prior to any stent deployment. This previously unrecognized complication is the result of modifications to ...
Jayachandran Sivakumar S NHS and Private practice, Birmingham, UK. Electronic address: - - 2014
This article describes an alternative method to establish the inclination of the occlusal plane by using the hamular notch, incisive papilla plane. By using this plane, the fabrication of occlusal rims that conform to an ideal relationship may make chairside trimming of the rims more straightforward.
Ma Jiayao J Department of Engineering Science, University of Oxford, Oxford, - - 2014
Brain arterial aneurysms are localised dilatation in the wall of cerebral arteries that are common among adult population and associated with high incidence of morbidity and mortality. Using flow diverter stent alone to treat cerebral aneurysm is recognized as a safe and effective method. However, flow diverter stents currently available ...
Ho Brian B Department of Otolaryngology, Georgia Regents University, Augusta, - - 2014
Objective: To define transnasal endoscopic surgical landmarks for the parapharyngeal segment of the internal carotid artery (ppICA) using radiographic analysis and cadaveric dissection. Study Design: Cadaveric and radiographic study Methods: 179 CT angiography studies of the head and neck were analyzed using Osirix third-party software (Pixmeo, Switzerland). Dissection of a ...
Voros Szilard S Stony Brook University, Stony Brook, NY, - - 2014
We previously validated a gene expression score (GES) based on age, sex and peripheral blood cell expression levels of 23 genes measured by quantitative real-time PCR (qRT-PCR) for diagnosis of obstructive coronary artery disease (CAD) (≥50% luminal diameter stenosis). In this study we sought to determine the association between the ...
Erhardt Salome - - 2014
Objectives: Aneurysm volume is routinely approximated calculating cylindrical volumes. Exact aneurysm volume assessment is crucial for liquid polymer embolization. The aim of this study was to compare simple cylindrical volume approximations with direct multiplanar reconstruction (MPR) segmentational volumetry in a saccular/complex experimental rabbit bifurcation aneurysm model. Methods: In 12 female ...
Ulger Fatma Esra Bahadir FE Department of Radiology, Kahramanmaraş Necip Fazıl City Hospital, Kahramanmaraş, - - 2014
We present a case of common carotid artery agenesis which is an extremely rare congenital anomaly. Less than 35 cases have been reported. These anomalies are typically asymptomatic and usually discovered as an incidental finding. Color Doppler ultrasonography is an effective and sensitive method for detecting absence of common carotid ...
Bales G G Department of Anatomy, Western University of Health Sciences, Pomona, - - 2014
The azygos vein (AV) is typically described (illustrated) as ascending vertically on the right of thoracic vertebrae. Most thoracic vein studies have focused on tributary patterns, but some have noted more leftward AV courses. This study statistically documents variation in AV course independent of tributary patterns. A more statistical approach ...
Hwang M-H MH Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, - - 2014
Aortic pulse wave velocity (AoPWV) and augmentation index (AIx) are commonly used measures of large elastic artery stiffness and wave reflection, respectively. Recently, a new cuff-based SphygmoCor device (Xcel) has been developed to measure both AoPWV and AIx. We sought to examine the following: (1) the validity of Xcel compared ...
Fujimoto Motoaki - - 2014
Objectives: Biomechanical stress distribution correlates with the biological responses after stenting. Computational analyses have contributed to the optimization of stent geometry. In particular, structural analysis based on pre-operative angiography can be used to predict the stent-artery interaction before endovascular treatments. However, the simulated results need to be validated. In this ...
Liu Chuanzhen C Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, People's Republic of - - 2014
We sought to explore and create a reliable, convenient, and economic hyperkinetic pulmonary artery hypertension (PAH) model and confirm the exact time of establishing a reversible or irreversible model to serve as a platform for future studies. We used a common carotid artery and jugular vein shunt with an anastomosis ...
Iannaccone F F IbiTech-bioMMeda, Department of Electronics and Information Systems, iMinds Future Health Department, Ghent University, Belgium. Electronic address: - - 2014
Carotid artery stenting is emerging as an alternative technique to surgery for the treatment of symptomatic severe carotid stenosis. Clinical and experimental evidence demonstrates that both plaque morphology and biomechanical changes due to the device implantation can be possible causes of an unsuccessful treatment. In order to gain further insights ...
Stroud Andrea A Department of Surgery, Dartmouth-Hitchcock Medical Center and the University of Massachusetts School of Medicine; Department of Surgery, Dartmouth-Hitchcock Medical Center and Dartmouth Medical - - 2014
Optimal central venous catheter (CVC) tip location is necessary to decrease the incidence of complications related to their use. We sought to create a practical method to reliably predict the length of catheter to insert into the subclavian vein during CVC placement in children. We performed a retrospective review of ...
Bapat Vinayak N VN Department of Cardiothoracic Surgery and Cardiology, Guy's and St. Thomas' Hospital, London, United Kingdom. Electronic address: - - 2014
The goal of this study was to provide a measurement of the true internal diameter (ID) of various surgical heart valves (SHV) to facilitate the valve-in-valve (VIV) procedure. During a VIV procedure, it is important to choose the right of the transcatheter heart valve (THV). Most users use the stent ...
Lauten Alexander A Department of Internal Medicine I (Cardiology, Angiology, Pneumology, Intensive Care Medicine), Jena University Hospital, Friedrich- Schiller University, Jena, - - 2014
Background: Caval Valve Implanatation (CAVI) has been suggested for transcatheter treatment of severe tricuspid regurgitation (TR). Combining the interventional technique with the promising surgical experience with decellularized valves we sought to evaluate the functional and structural outcome of decelluarized pericardial tissue valves (dTV) in the low-pressure venous circulation in a ...
Arokiaraj Mark C MC Professor, Cardiology, Pondicherry Institute of Medical Sciences, Kalathumettupathai street, Kalapet, Pondicherry, - - 2014
A novel large self-expanding endovascular stent was designed with strut thickness of 70 μm × 70 μm width. The method was developed and investigated to identify a novel simpler technique in aortic aneurysm therapy. Stage 1 analysis was performed after deploying it in a virtual aneurysm model of 6 cm wide × 6 cm ...
Duelsner André A Center for Cardiovascular Research (CCR), Universitaetsmedizin Berlin, Berlin, - - 2014
Unilateral common carotid artery occlusion (CCAO) is a standardized method to initiate collateral artery growth (arteriogenesis) in mouse brain. After CCAO is induced, blood circulation in the circle of Willis is changed and increases shear stress, which triggers increased arterial diameter and improvements in cerebrovascular reserve capacity. Functional improvement can ...
Imnadze Guram G Schuechtermann Clinic, Bad Rothenfelde, - - 2014
Catheter-directed intervention to treat atrial fibrillation (AF) is becoming widely accepted procedure in current clinical practice. For assessment of pulmonary vein (PV) anatomy, angiography of left atrium (LA) and/or PV is often performed. We present a new, simple angiographic method for PVs and LA opacification using SL1 sheath. Total of ...
Dziekiewicz Mirosław - - 2014
Abstract The study presented an approach to the morphometric image of atherosclerotic lesions of the final segment of the abdominal aorta, femoral and iliac arteries, considering possible endovascular intervention. The evaluation of these arteries is very important, because they are often used as a point of access for endovascular procedures ...
Di Somma Alberto A 0000-0002-3253-3448 Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Neurosurgery, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Naples, Italy ; Laboratory of Surgical Neuroanatomy (LSNA), Faculty of Medicine, Universitat de Barcelona, Villarroel 170, 08036 Barcelona, - - 2014
Introduction. The purpose of the present contribution is to perform a detailed anatomic and virtual reality three-dimensional stereoscopic study in order to test the effectiveness of the extended endoscopic endonasal approaches for selected anterior and posterior circulation aneurysms. Methods. The study was divided in two main steps: (1) simulation step, ...
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