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- - 2011
No proven decline in mortality; no tangible prevention of pulmonary embolism; beware of bleeding.
Naylor A Ross - - 2011
It has been nearly 60 years since Felix Eastcott published his seminal paper on carotid reconstruction, which paved the way for carotid endarterectomy (CEA) and then carotid artery stenting (CAS) to assume prominent roles in the prevention of stroke. Yet the ensuing 60 years has witnessed repeated cycles of challenges to practice, ...
He Yi Y Department of Radiology, Anzhen Hospital, Capital Medical University, Beijing, - - 2012
To evaluate the ability of black-blood coronary arterial wall MRI to identify the coronary artery plaque, using intravascular ultrasound (IVUS) as the golden standard. Nineteen consecutive patients underwent IVUS and coronary artery wall MRI. Cross-sectional images were acquired on the lesion of coronary artery from the ostium to the middle ...
Yildirim Afra - - 2011
Congenital thoracic arterial anomalies can be incidentally detected in adults from imaging studies performed for other indications. Multidetector computed tomography plays a critical role in the noninvasive assessment of these anomalies and associated cardiac, mediastinal, or parencyhmal changes by providing volumetric data. Radiologists should be familiar with imaging findings of ...
Kubota Hiroshi - - 2011
To reduce the risk of stroke during open surgery for the treatment of descending thoracic or thoracoabdominal aortic diseases, we attempted to insert a proximal elephant trunk to stabilize the atherosclerosis at the site of the proximal anastomosis. Although the patients had dense atherosclerotic lesions, they recovered well without neurologic ...
Razavian Mahmoud M Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, - - 2011
Inflammation plays a key role in the development of vascular diseases. Monocytes and macrophages express α(v)β(3) integrin. We used an α(v) integrin-specific tracer, (99m)Tc-NC100692, to investigate integrin-targeted imaging for detection vessel wall inflammation. The binding of a fluorescent homologue of NC100692 to α(v)β(3) on human monocytes and macrophages was shown ...
Lopes Demetrius Klee - - 2011
IntroductionOptical coherence tomography (OCT) provides high resolution imaging of tissue; this technology has been validated using intra-arterial catheters in the evaluation of arterial anatomy, pathology and treatments. The perforating cerebral arteries and intracranial stents have not been previously visualized with an OCT catheter.MethodsUsing a standard transfemoral endovascular technique, a LightLab ...
Saba Luca - - 2011
In the study of carotid arteries, modern techniques of imaging allow to analyze various alterations beyond simple luminal narrowing, including the morphology of atherosclerotic plaques, the arterial wall and the surrounding structures. By using CTA and MRI it is possible to obtain three-dimensional rendering of anatomic structures with excellent detail ...
Mwambingu Thomas L - - 2011
A 65-year-old male was referred to our team after the incidental finding of a large non-coronary sinus of Valsalva aneurysm on computed tomography (CT)-scan of the thorax. Further imaging with transesophageal echocardiography (TOE) excluded intracardiac shunting. Unusually, the aneurysm had ruptured into the interatrial septum and was seen to be ...
Ross Charles B - - 2011
The role of carotid artery stenting (CAS) as an alternative to carotid endarterectomy for the treatment of extracranial carotid occlusive disease for stroke prevention continues to evolve. Although technical and device refinements aimed at making CAS safer continue to this day, safety as measured by 30-day and 1-year outcomes has ...
Bellinger David C DC Department of Neurology, Harvard Medical School, Boston, MA 02115, USA. - - 2011
We report neuropsychological and structural brain imaging assessments in children 16 years of age with d-transposition of the great arteries who underwent the arterial switch operation as infants. Children were randomly assigned to a vital organ support method, deep hypothermia with either total circulatory arrest or continuous low-flow cardiopulmonary bypass. ...
Kimura Toshikazu - - 2011
: In aneurysm surgery, understanding the microanatomy around the aneurysm such as perforating arteries and cranial nerves is mandatory. : To assess the usefulness in determining the microanatomy around the cerebral aneurysms by the use of fast imaging employing steady-state acquisition (FIESTA) images of magnetic resonance imaging preoperatively, in addition ...
Field Thalia S - - 2011
Venous thromboembolism (VTE), encompassing deep venous thrombosis and pulmonary embolism, is a potentially fatal but preventable complication of stroke. Reported rates of VTE after stroke have decreased over the last four decades, possibly due to the implementation of stroke units, early mobilization and hydration, and increased early use of antiplatelets. ...
Morisaki Koichi - - 2011
This report describes three cases of a delayed closure to prevent the occurrence of abdominal compartment syndrome (ACS) in patients presenting with ruptured abdominal aortic aneurysms (rAAA). The delayed closure technique is useful for rAAA in order to prevent ACS.
Altiok Ertunc - - 2011
Aims Different two-dimensional (2D) and three-dimensional (3D) imaging techniques are used for procedure planning and selection of prosthesis size before transcatheter aortic valve implantation. This study sought to compare different 2D and 3D imaging techniques and determine the accuracy of 3D transoesophageal echocardiography (TEE) for accurate analysis of aortic annulus ...
Klok Frederikus A - - 2011
PURPOSE OF REVIEW: The aim is to review the evidence on the diagnostic value of computed tomography pulmonary angiography (CTPA) as a single test to rule out acute pulmonary embolism by focussing on the most recent literature and potential alternative and additional imaging modalities or diagnostic strategies. RECENT FINDINGS: Clinical ...
Fathi Ali Reza - - 2011
BACKGROUND: Delayed cerebral vasospasm after aneurysmal subarachnoid hemorrhage (SAH) is a major cause of high morbidity and mortality. The reduced availability of nitric oxide (NO) in blood and cerebrospinal fluid (CSF) is well established as a key mechanism of vasospasm. Systemic administration of glyceryl trinitrate (GTN), an NO donor also ...
Schoenhagen Paul - - 2011
For patients with severe aortic stenosis, open-heart surgical valve replacement remains the current clinical standard with documented, excellent long-term outcome. Over the past few years, transcatheter aortic valve implantation (TAVI) has developed into a treatment alternative for high-risk patients with severe aortic stenosis. Because transcatheter valvular procedures are characterized by ...
Jassar Arminder Singh - - 2011
Misaligned deployment refers to eccentric flaring of the bare stent portion of the endograft that causes proximal device retroflexion resulting in suboptimal graft placement. A 71-year-old woman with 6.8-cm distal aortic arch aneurysm underwent hybrid repair with combination of open aortic arch debranching and subsequent thoracic endovascular aortic repair. During ...
Habibzadeh Mohammad Reza - - 2011
No-reflow is a failure to restore normal coronary flow despite appropriate treatment of coronary obstruction. It is most commonly seen during interventions in saphenous vein grafts and is associated with poor outcome. The cause of no-reflow is complex and multifactorial. Various mechanisms including vasospasm and distal embolization of debris released ...
O'Keefe Kathryn L - - 2011
Aortic valve replacement with stentless xenografts has become routine since their introduction in the early 1990s. Although concerns of structural valve deterioration and long-term durability have been voiced, the reports on the causes or pathology associated with early valve failure have been sparse. We report two unusual cases of failure ...
Kataoka Hiroshi - - 2011
The middle cerebellar peduncle (MCP) is supplied mainly by the anterior inferior cerebellar artery and partly by the superior cerebellar artery. The bilateral MCP infarctions in previous patients were attributed to alternations of two vessels, such as the unilateral vertebral artery and basilar artery or both vertebral arteries. We describe ...
Simsek C - - 2011
The occurrence of restenosis and acute vessel closure postballoon angioplasty was the driving force for the introduction of coronary artery stenting in the 1980s. Although the first generation of coronary artery stents were highly valuable and efficient in scaffolding (non-)threatened coronary vessels, they proved to be associated with iatrogenic side ...
Schubert Heinrich M - - 2011
BACKGROUND:: Among many aspects, wound healing depends on early restoration of venous blood flow across wound margins. The type of surgical occlusion of vein stumps during operations was assumed to have an influence on the early postoperative reunion of vein stumps and thereby on wound healing. Currently, there are different ...
Munakata Akira - - 2011
it is hypothesized that free radical reactions evoked by oxyhemoglobin (oxyHb) cause cerebral vasospasm after aneurysmal subarachnoid hemorrhage (SAH), even though the detailed mechanisms have not yet been fully established. The aims of this study were thus to investigate, through the use of the double-hemorrhage rabbit model, the possibility that ...
Fan Feng - - 2011
Untreated, ruptured vertebral dissecting aneurysms are associated with high incidences of rebleeding and consequent mortality. Double-origin of the posterior inferior cerebellar artery (PICA) is an infrequent congenital variation, which showing predilection for the formation of intracranial aneurysm. We describe an endovascular approach toward the treatment of a ruptured vertebral dissecting ...
Majid Y - - 2011
Noninvasive imaging of coronary artery disease is rapidly replacing angiography as the first line of investigation. Multislice CT is the non-invasive modality of choice for imaging coronary artery disease and provides high speed with good spatial resolution. CT coronary angiography in addition to detecting and characterising atherosclerotic coronary artery disease ...
Henjes Christiane R - - 2011
Diagnosis of extracardiac intrathoracic vascular anomalies is of clinical importance, but remains challenging. Traditional imaging modalities, such as radiography, echocardiography, and angiography, are inherently limited by the difficulties of a 2-dimensional approach to a 3-dimensional object. We postulated that accurate characterization of malformations of the aorta would benefit from 3-dimensional ...
Tang Yamei - - 2010
A 39-year-old Chinese man developed ocular ischemic syndrome (OIS) in both eyes 14 years after radiation therapy for nasopharyngeal squamous cell carcinoma. Digital subtraction angiography disclosed occlusion of common carotid arteries and stenosis of both vertebral arteries. Following stenting of the vertebral arteries, visual function improved and ophthalmoscopic abnormalities of ...
Youssef A Samy - - 2010
The extradural portion of the vertebral artery (VA-V3) has a unique anatomy at the craniovertebral junction. The exposure of V3 can be accompanied by profuse bleeding from the venous plexus in addition to the potential risk of inadvertent injury of the VA during surgery at the craniovertebral junction. The natural ...
Tobin W Oliver - - 2010
A 48-year-old man presented with a posterior circulation stroke secondary to left lateral medullary infarction. Contrast-enhanced magnetic resonance angiography (CEMRA) revealed 40-45% intracranial left vertebral artery stenosis, likely atherosclerotic in nature. CEMRA and subsequent computed tomography angiography also identified a duplicate origin of the left vertebral artery. The importance of ...
Kotzé S H - - 2010
Bathyergus suillus are subterranean rodents found in the Western Cape of South Africa, where they inhabit sandy, humid burrows. Vertebral venous plexuses around the vertebral column have been implicated in aiding the maintenance of a constant central nervous system temperature via its connections with muscles and interscapular brown adipose tissue. ...
Eskander Mark S - - 2010
The aim of this study is to characterize the anatomy of vertebral arteries using magnetic resonance imaging scans of 250 consecutive patients. To document the prevalence of midline vertebral artery (VA) migration in a subgroup of patients presenting with neck pain, radiculopathy, or myelopathy and to identify the course of ...
Rolph R - - 2010
Objectives To clarify how carotid and vertebral dissections present. Presentation and outcome data were recorded for all cervical arterial dissections reported radiologically between 2005 and 2009. Results 15 cases were identified. Symptoms associated with nine vertebral artery dissections were vomiting, vertigo and ataxia. All except one had cerebellar signs. On ...
Greiner Hansel M - - 2010
Rotational vertebral artery occlusion (RVAO), sometimes known as "Bow hunter syndrome," is an important and diagnostically challenging cause of posterior circulation stroke in children. It is caused by impingement of osseous and/or ligamentous structures on the vertebral artery. We review the differential diagnosis and recommended workup for posterior circulation stroke ...
Cardoso Mario J - - 2010
Pedicle screw placement in the proximal thoracic spine may result in unwanted bicortical breach. An understanding of the potential structures at risk is paramount to safe screw placement. To assess the anatomic location of structures at risk with the placement of bicortical pedicle screw fixation in the proximal thoracic spine. ...
Fiorella David - - 2010
The Pipeline embolization device (PED) is a new endoluminal construct designed to exclude aneurysms from the parent cerebrovasculature. We report the very late (>1 year) thrombosis of a PED construct placed for the treatment of a left vertebral aneurysm. A patient with an occluded right vertebral artery and a large, ...
Gordhan Ajeet - - 2010
This technical note describes a complication related to the use of the Merci embolectomy device not previously reported. The device can induce critical flow limitation within an accessed vessel because of a combination of vasospasm and anatomic conformational changes. Furthermore, this can limit the safe removal of the device from ...
D'Antoni Anthony V - - 2010
The anatomy of the muscular branches of the vertebral arteries has clinical relevance during surgical procedures, suboccipital injections, and manual therapies. Each vertebral artery is divided into four segments. Segment V3, found in the suboccipital triangle, courses posteromedially around the lateral mass to lie in a groove on the posterior ...
Phillips John - - 2010
"Migraine associated vertigo" is emerging as a popular diagnosis for patients with recurrent vertigo. However, in view of our current understanding of both migraine and vertigo, "migraine associated vertigo," in contrast to basilar artery migraine, is neither clinically nor biologically plausible as a migraine variant.
Kim Esther S H - - 2010
The appearance of the vertebral artery (VA) waveform on a pulsed Doppler examination performed during standard carotid duplex ultrasonography (CDU) may suggest vertebrobasilar disease. We sought to determine the radiographic importance of high-resistive (HR) pulsed Doppler VA waveforms seen on CDU. The Noninvasive Vascular Laboratory database was queried for CDU ...
Pascual-Castroviejo I - - 2010
We report on a girl with a left facial hemangioma and absence of the right ear and canal who also showed absence of the left vertebral and anterior cerebral arteries (ipsilateral to the facial hemangioma), and absence of the external carotid artery and presence of stapedial artery on the right ...
Chung Joonho - - 2010
We report a patient with a right vertebral artery (VA) dissecting aneurysm who was treated by placing an Enterprise stent (Cordis Neurovascular, Miami Lakes, FL) from the proximal VA to the posterior inferior cerebellar artery (PICA) in order to save the patency of the PICA. A 47-year-old man was admitted ...
Watanabe Tatsuaki - - 2010
We report a patient with left apical lung carcinoma involving the left subclavian artery with the origin of the vertebral artery who had hypoplasia of the right vertebral artery and the bilateral posterior communicating arteries. After induction chemoradiotherapy, a vein graft was used to create a bypass between the left ...
Charles Yann Philippe - - 2011
The aim of this study was to describe the preoperative topography of the Adamkiewicz artery and the blood supply of the lumbosacral spinal cord in patients who underwent spinal surgery. The relevance for anterior approaches of the thoracolumbar spine was then analyzed. One hundred consecutive spinal angiographies were reviewed. Surgical ...
Chuang Y M - - 2011
Objectives To test the hypothesis that vertebral artery hypoplasia (VAH) may affect the lateralisation of vestibular neuropathy (VN), probably through haemodynamic effect on the vestibular labyrinth. Methods 69 patients with unilateral VN were examined with a magnetic resonance angiographic (MRA) and caloric test. 50 healthy subjects served as controls. The ...
Czabanka Marcus - - 2011
Endovascular occlusion of hemorrhagic dissecting aneurysms of the vertebral artery (VA) is not possible when the posterior inferior cerebellar artery (PICA) originates from the dissecting aneurysm or when the contralateral VA provides inadequate collateral blood flow to the distal basilar circulation. The authors introduce a VA-PICA bypass with radial artery ...
Créac'h Christelle - - 2010
Symptomatic cluster-like headaches have been described with lesions of the trigeminal and parasympathetic systems. Here, we report the case of a 44-year-old woman with continuous auricular pain and a positional cluster-like headache associated with red ear syndrome. Clinical data and morphological investigations raised the hypothesis of a neurovascular compression between ...
Kawano Hiroyuki - - 2010
There are very few reports describing the presence of a stump embolism after vertebral artery occlusion. We describe three patients who presented with posterior circulation ischemic strokes after vertebral artery occlusion. These patients were successfully treated with anticoagulation therapy without surgical or endovascular treatment.
Heo D H - - 2010
Injury to spinal segmental arteries may potentially occur during spinal surgery, particularly during anterior or minimally invasive approaches. Use of a noninvasive radiologic tool to evaluate these arteries before surgery may reduce this risk. We performed spinal CT angiography and reconstructed 3D images of segmental arteries in 41 patients. We ...
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