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Lücke C C Diagnostic and Interventional Radiology, University Leipzig - Heart Centre, - - 2014
Purpose: To compare the performance of server-based (CSS) versus stand-alone post-processing software (ES) for the evaluation of cardiovascular CT examinations (cvCT) and to determine the crucial steps. Materials and Methods: Data of 40 patients (20 patients for coronary artery evaluation and 20 patients prior to transcatheter aortic valve implantation [TAVI]) ...
Araki T T Division of Cardiovascular Medicine, Toho University Ohashi Medical Center, Ohashi Meguro-ku, Tokyo, Japan - - - 2014
Establishing relationship between coronary calcium volumes from Intravascular Ultrasound (IVUS) and automated carotid intima-media thickness (cIMT) helps in understanding the genetic nature of atherosclerosis disease. In this research, we have quantified the detected calcium from IVUS video frames and associated a relationship between coronary calcium volumes computed and automated cIMT ...
Nijs Jan J Jan Nijs, Bastian BLJH Kietselaer, Orlando Parise, Mark La Meir, Cardiothoracic Surgery, University Hospital, 1020 Brussels, - - 2014
Effective height, which represents the height difference between the central free margins and the aortic insertion lines can be easily determined by 2-D echocardiography and allows for identification of prolapse in the native cusps and assessment of prolapse correction after valve repair. Nonetheless, it allows to see only two of ...
Porciello F F Department of Veterinary Medicine, University of Perugia, Perugia, - - 2014
Transcatheter occlusion of patent ductus arteriosus (PDA) is usually performed by fluoroscopy alone or together with transesophageal echocardiography (TEE). Transthoracic echocardiography (TTE) guidance has been used for deployment of Amplatz Canine Ductal Occluder (ACDO), but sometimes is limited by suboptimal acoustic windows. Transesophageal echocardiography can overcome such issues and provides ...
Park Keun Young KY Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of - - 2014
Coil packing density (PD) can be calculated via a formula (PDF ) or software (PDS ). Two types of PD can be different from each other for same aneurysm. This study aimed to evaluate the interobserver agreement and relationships between the 2 types of PD relative to aneurysm size. Consecutive ...
Madssen Erik - - 2014
Abstract Objectives Variability in data acquisition from intervened coronary arteries could represent a source of error that has implications for the design of serial stent studies. We assessed inter-pullback reproducibility of volumetric grayscale and radiofrequency intravascular ultrasound (IVUS) data in stented coronary arteries. Design Fifteen patients with coronary artery lesions ...
Chen Peng Roc PR Department of Neurosurgery, University of Texas Medical School at Houston, - - 2014
It is generally considered difficult and risky to treat a small aneurysm (less than 4 mm) by use of coil embolization. The main issues are related to the following factors: frequently broad-based aneurysm with shallow dome, complex in shape, difficult to maintain microcatheter stability in an aneurysm, difficult to achieve ...
Fiorella David D Stony Brook University Medical Center, Stony Brook, New York, - - 2014
The WEB (WEB aneurysm embolization system, Sequent Medical, Aliso Viejo, California, USA) is a self-expanding, nitinol, mesh device designed to achieve aneurysm occlusion after endosaccular deployment. The WEB Occlusion Scale (WOS) is a standardized angiographic assessment scale for reporting aneurysm occlusion achieved with intrasaccular mesh implants. This study was performed ...
Kabutey Nii-Kabu NK Department of Radiology, Boston University Medical Center, 820 Harrison Ave., FGH Building, 3rd Floor, Boston, MA 02118; Department of Surgery, University of California, Irvine Medical Center, 333 City Blvd. W. Ste, 700, Orange, CA 92868. Electronic address: - - 2014
To describe the salvage of a left axillary artery to right atrium hemodialysis graft using endovascular techniques. A 54-year-old man with multiple arteriovenous graft failures presented with a thrombosed left axillary artery to right atrium Gore-tex hemodialysis graft. The graft was salvaged using rheolytic catheter thrombectomy, mechanical thrombectomy, balloon angioplasty, ...
Zhao Shijia - - 2014
A computational framework was implemented and validated to better understand the hypertensive artery remodeling in terms of both geometrical and material adaptations. Integrating the stress-modulated remodeling equations with commercial finite element codes allow better control and visualization of local mechanical parameters. Both arterial thickening and stiffening effect were captured and ...
Makimoto Hisaki H Department of Cardiology, Asklepios Klinik St. - - 2014
In addition to contact force (CF), catheter stability is considered to be an important factor in creating radiofrequency lesions.To evaluate the catheter stability during pulmonary vein isolation (PVI) using CF-sensing catheter.PVI was performed in 32 patients using a CF-sensing catheter. Operators were blinded to CF. The application was arbitrarily defined ...
Amin Faisal Mohammad - - 2014
Non-invasive magnetic resonance angiography (MRA) has facilitated repeated measurements of human cranial arteries in several headache and migraine studies. To ensure comparability across studies the same automated analysis software has been used, but the intra- and interobserver, day-to-day and side-to-side variations have not yet been published. We hypothesised that the ...
Lauric Alexandra A Cerebrovascular and Endovascular Division, Department of Neurosurgery, Tufts Medical Center and Tufts University School of Medicine, Boston, - - 2014
While high-resolution cone-beam computational tomographic (CBCT) angiography has gained use in intracranial vascular imaging, digital subtraction angiography (DSA) and 3-dimensional-rotational angiography (3D-RA) remain the preferred acquisition modalities for intracranial aneurysm imaging. This case report highlights the utility of the greater spatial resolution afforded by CBCT for cerebral aneurysm imaging. A ...
Weissmann-Brenner Alina A Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Tel-Hashomer, 52621 Ramat Gan, Israel. - - 2014
Objectives- The purpose of this study was to investigate the ability to depict the 4-chamber and 3-vessel and trachea views of the fetal heart using 3-dimensional sonography. Methods- Three-dimensional color Doppler volumes of the fetal heart were acquired prospectively in 31 fetuses between 19 and 25 gestational weeks. The initial ...
Gory Benjamin B Department of Interventional Neuroradiology, Hôpital Neurologique Pierre Wertheimer, Bron, - - 2014
Flow-diverter stents are the new promising tools in the treatment of intracranial aneurysms allowing progressive aneurysm occlusion. Here, we report a case where high-resolution magnetic resonance imaging showed thrombus at fundus of the aneurysm sac, indicating a progressive intraaneurysmal thrombosis after flow-diverter placement.
Mielke Dorothee D Department of Neurosurgery, Georg-August-University - - 2014
Indocyanine green (ICG) angiography is used to detect vessel compromise by the clip, residual aneurysms after clipping, or persistent aneurysm filling due to incomplete clipping. For ICG angiography, the microscope must be in a direct line-of-sight with the region of interest, limiting the identification of hidden arteries and dog-ear remnants. ...
Wallen Jack J Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Ontario, - - 2014
Surgical repair of tricuspid regurgitation after medical management of infective endocarditis can present a challenging scenario. We present the case of a 53-year-old man in whom a conventional tricuspid valve operation was deemed suboptimal. Instead, we used a commercially available extracellular matrix (ECM) to perform an extensive reconstruction of his ...
Molinari Giovani José Dal Poggetto - - 2014
Introduction: Endovascular aneurysm repair requires the precise deployment of the graft. In order to achieve accurate positioning, the anatomical and morphological characteristics of the aorta and its branches is mandatory. Software that perform three dimensional reformatting of multislice tomographic images, allow for the study of the whole aorto-iliac axis and ...
Caroff J J From the Department of Interventional Neuroradiology (J.C., C.M., H.N., L.I., N.B., J.M., L.S.), Beaujon Medical Centre, Clichy, France; and Interventional X-Ray Innovation (D.R.), Philips Healthcare, Best, the - - 2014
The WEB aneurysm embolization system is still under evaluation but seems to be a promising technique to treat wide-neck bifurcation aneurysms. However, this device is barely visible using conventional DSA; thus, high-resolution contrast-enhanced flat panel detector CT (VasoCT) may be useful before detachment to assess the sizing and positioning of ...
Garvin Robert P RP Geisinger Medical Center, Danville, Pennsylvania, - - 2014
Purpose : To make interventionists aware of the potential for type IV endoleak on completion carbon dioxide (CO2) angiography during endovascular aneurysm repair (EVAR) using the Endurant stent-graft. Case Report : A 74-year-old man with chronic kidney disease underwent EVAR with an Endurant stent-graft using CO2 angiography to guide graft ...
Stidd David A DA Department of Neurosurgery, Rush University Medical Center, Chicago, IL, - - 2014
Coil herniation, premature deployment, and fracture are procedure associated complications of endovascular aneurysm embolization that optimally necessitate coil retrieval when feasible. Several published techniques describe different strategies for managing coil complications including various snare retrieval devices, alligator retrieval devices, stent fixation, and open surgical resection of coils when distal blood ...
Patel Saharsh S Department of Ophthalmology, University of Florida, Gainesville, Florida, - - 2014
Large and giant paraclinoid aneurysms are challenging to treat by either surgical or endovascular means. Visual dysfunction secondary to optic nerve compression and its relationship with aneurysm size, pulsation and thrombosis is poorly understood. We present a patient with a giant paraclinoid aneurysm resulting in bilateral visual loss that worsened ...
Gemayel Gino G Department of Cardiovascular Surgery, University Hospital of Geneva, Faculty of Medicine, University of Geneva, - - 2014
We report a case of a life-threatening internal iliac artery aneurysm rupture managed successfully with an on-table reversed flared iliac limb stentgraft and embolization. This easily off-the-shelf reproducible technique avoids using a more complex and expensive bifurcated aorto-iliac graft and could be a good solution in emergency situation where a ...
Van Linden Arnaud A Department of Cardiac Surgery, Kerckhoff-Klinik, Bad Nauheim, - - 2014
Precise measurements of aortic annulus dimensions are crucial for prosthesis size selection in patients undergoing transcatheter aortic valve implantation (TAVI). The so-called effective diameter (derived from area) measured in multislice computed tomography (MSCT) images has evolved to be the most precise measurement tool. Usually, the operator must manually adjust the ...
André Florian - - 2014
The important detection of in-stent restenosis in cardiovascular computed tomography (CT) is still challenging. The first study assessing the in-vitro stent lumen visualization of the state of the art 256 multislice CT (256-MSCT), which was performed by our research group, yielded promising results. As the applied technical approach is not ...
Lawton Michael L ML University of California, San Francisco, Neurosurgery, San Francisco, - - 2014
In this operative video, we demonstrate the approach to a 10-mm distal left vertebral artery and proximal basilar artery blister aneurysm in a 62-year-old male presenting with subarachnoid hemorrhage. He initially underwent clipping of the ruptured ACoA aneurysm and two incidental right MCA aneurysms. Ten days later, the posterior circulation ...
Patel Saharsh S Department of Ophthalmology, University of Florida, Gainesville, Florida, - - 2014
Large and giant paraclinoid aneurysms are challenging to treat by either surgical or endovascular means. Visual dysfunction secondary to optic nerve compression and its relationship with aneurysm size, pulsation and thrombosis is poorly understood. We present a patient with a giant paraclinoid aneurysm resulting in bilateral visual loss that worsened ...
Vishak K A KA Department of Pulmonary Medicine, Kasturba Medical College, Attavar, Manipal University, Mangalore, Karnataka, - - 2014
Pulmonary aspergilloma is caused by colonization and proliferation of Aspergillus in the preexisting cavities in lungs. Diagnosis of pulmonary aspergilloma is usually made based on chest X-ray findings, presence of serum precipitins against aspergillus and sputum culture. Bronchoscopic visualization of aspergilloma is very infrequent and more over calcification is rarely ...
Kaplowitz Jeremy J Department of Anesthesiology, University of Maryland School of Medicine, 22 S. Greene Street S11C00, Baltimore, MD 21201, - - 2014
Ultrasound guidance is recommended for cannulation of the internal jugular vein. Use of ultrasound allows you to identify relevant anatomy and possible anatomical anomalies. The most common approach is performed while visualizing the vein transversely and inserting the needle out of plane to the probe. With this approach needle tip ...
Rand Katherine K Clinical Research Associate in the Department of Newborn Medicine at Brigham & Women's Hospital, Boston, Mass., and a pre-medical - - 2014
Young healthy women without a genetic predisposition are considered to be at low risk for deep vein thrombosis and pulmonary emboli. We present an unusual case of pulmonary embolism in a 21-year-old female competitive rower likely caused by oral contraception and trauma of the axillary-subclavian vein by extrinsic compression due ...
Kohli Santvana S 0000-0003-1410-6933 Department of Anesthesiology, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi 110029, - - 2014
Use of ultrasonography for performance of nerve and plexus blocks has made the process simpler and safer. However, at times, variant anatomy of the visualized structures can lead to failure of blocks or complications such as intravascular injections. This is especially true in case of novice operators. We report a ...
Oberoi Shane S 1 Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Ashley River Tower, Charleston, SC - - 2014
The objective of our study was to evaluate the reproducibility of noncalcified coronary artery plaque burden quantification from coronary CT angiography (CTA) across different commercial analysis platforms. For this study, 47 patients (36 men, 11 women; mean age ± SD, 62 ± 13 years) with noncalcified plaques on coronary CTA ...
Iwazawa Jin J Deparment of Radiology, Nissay Hospital, Osaka, - - 2013
We aimed to investigate the feasibility of using vessel-detection software to identify damaged arteries during endovascular embolization in five patients with visceral arterial hemorrhages. We used a software program originally developed to detect tumor feeder vessels in liver tumor embolization with C-arm computed tomography datasets to detect the vessels responsible ...
Morbelli Silvia - - 2013
To compare regional vascular distribution and biological determinants of visible calcium load, as assessed by computed tomography, as well as of molecular calcium deposition as assessed by (18)F-NaF positron emission tomography. Eighty oncologic patients undergoing (18)F-NaF PET/CT scan were included in the study. Cardiovascular-risk stratification was performed according to a ...
Tam Matthew D B S - - 2013
Purpose : To describe rapid prototyping or 3-dimensional (3D) printing of aneurysms with complex neck anatomy to facilitate endovascular aneurysm repair (EVAR). Case Report : A 75-year-old man had a 6.6-cm infrarenal aortic aneurysm that appeared on computed tomographic angiography to have a sharp neck angulation of ∼90°. However, although ...
Takao H - - 2013
BACKGROUND AND PURPOSE:Precise aneurysm measurements and volume embolization ratios are essential for long-term durability of endovascular coil embolization. We evaluated the accuracy of newly developed semiautomatic cerebral aneurysm measurement software, NeuroVision, and explored the value of volume embolization ratio in the prediction of re-treatment.MATERIALS AND METHODS:We compared software-derived volume measurements ...
Laspas Fotios - - 2013
In recent years, computed tomography coronary angiography is commonly performed as a follow-up examination after coronary artery bypass graft surgery. Coronary grafts owing to their minimal motion are well visualized by computed tomography coronary angiography, allowing radiologists to assess their patency noninvasively with very high diagnostic accuracy. The purpose of ...
Mehta Vimal - - 2013
Broken catheter fragment in a coronary artery during percutaneous coronary angioplasty is a rare complication. It can result in serious problems as a result of thrombus formation and embolization of broken fragment. We report an unusual complication of a broken balloon catheter during angioplasty, which was successfully retrieved by balloon ...
Kawajiri Hidetake - - 2013
A 25-year-old woman was admitted to our hospital after being involved in a high-energy motorcycle accident. Computed tomography angiography demonstrated a blunt traumatic aortic injury (BTAI) of the lesser curvature of the distal aortic arch accompanied by splintered fractures of the 7th thoracic vertebra and left clavicle. If the pseudoaneurysm ...
Kim James D - - 2013
: During evaluation for monocular visual loss, a 48-year-old woman was found to have a posttraumatic paraophthalmic internal carotid artery (ICA) pseudoaneurysm. She underwent reconstruction of the ophthalmic segment of the right ICA with a Pipeline embolization device but her vision did not return.
Peris-Celda Maria - - 2013
The endoscope is being introduced as an adjuvant to improve visualization of certain areas in open cranial surgery. To describe the endoscopic anatomy of common aneurysm sites, and to compare it with the microsurgical anatomy. Pterional, anterior interhemispheric, and subtemporal approaches to the most common aneurysm sites were examined in ...
Rossi Umberto G - - 2013
<bold>Purpose</bold>: To describe the possible ultrasound guidance techniques for the insertion of central venous catheters (CVCs), with emphasis particularly to the lateral short axis in-plane technique. <bold>Methods</bold>: Numerous articles have shown significant benefits of using ultrasound guidance for venous access. Two main approaches to vein puncture are available, when considering ...
Tokumine Asako - - 2013
Medical simulators have mainly been used as educational tools. They have been used to train technicians and to educate potential users about safety. We combined software for hybrid-type extracorporeal circulation simulation (ECCSIM) with a CPB-Workshop console. We evaluated the performance of ECCSIM, including its accuracy and repeatability, during simulated ECC. ...
Hung Ying-Ying - - 2013
Double aortic arch with an atretic left arch distal to the origin of left subclavian artery was diagnosed with multi-detector row computed tomography (MDCT) in two children with dysphagia. This rare type of complete vascular ring is clinically important because it may be confused with right aortic arch in mirror ...
Hong Cheng - - 2013
Optical coherence tomography (OCT) is a new imaging technique capable of obtaining high-resolution intravascular images and has been used in interventional cardiology. However, an application of OCT in pulmonary arteries had seldom been documented. In this case, OCT imaging is performed in peripheral pulmonary arteries and shows mural red thrombi. ...
Doulaverakis Charalampos - - 2013
There is an ongoing research and clinical interest in the development of reliable and easily accessible software for the 3D reconstruction of coronary arteries. In this work, we present the architecture and validation of IVUSAngio Tool, an application which performs fast and accurate 3D reconstruction of the coronary arteries by ...
Watanabe Yusuke Y Institut Cardiovasculaire Paris, Hôpital Privé Jacques Cartier, Générale de Santé, Massy, - - 2013
This study sought to evaluate the accuracy, reproducibility, and predictive value for post-procedural aortic regurgitation (AR) of an automated multidetector computed tomography (MDCT) post-processing imaging software, 3mensio Valves (version 5.1.sp1, 3mensio Medical Imaging BV, the Netherlands), in the assessment of patients undergoing transcatheter aortic valve implantation (TAVI). Accurate pre-operative aortic ...
Fujimura Shintaro - - 2013
Arteriovenous fistula (AVF), a type of vascular anomaly, is a relatively uncommon disease characterized by abnormal connections between the arterial and venous systems. Recently, remarkable advances in four-dimensional computed tomographic angiography (4D-CTA) have enabled detailed analysis of the hemodynamic features of vascular anomalies, which cannot be achieved by conventional imaging ...
Dumaswala Bhavin - - 2013
In this retrospective study, we identified 7 cases where Lambl's excrescences were identified by two-dimensional transesophageal echocardiography (2DTEE) and also had live/real time three-dimensional transesophageal echocardiography (3DTEE) studies available for comparison. We subsequently assessed them for the presence of Lambl's excrescences (LE) and nodules of Arantius (NA) on the aortic ...
Solinas Marco - - 2013
We describe a patch augmentation of the anterior leaflet of the tricuspid valve to address tricuspid valve regurgitation due to leaflet retraction. The area of the anterior leaflet is measured using a tricuspid valve annuloplasty sizer; a glutaraldehyde-fixed autologous pericardial patch is trimmed with slight 5 mm oversize. The anterior leaflet ...
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