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Koffie Robert M RM Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, White 502, Boston, MA 02114, - - 2014
Infectious intracranial aneurysms are rare vascular lesions that classically occur in patients with infective endocarditis. We present a 49-year-old man with altered mental status and headache with rapid growth and rupture of an infectious intracranial aneurysm with catastrophic intracranial hemorrhage, and review issues related to open neurosurgical and endovascular interventions.
Yu Sheng S Partners HealthCare Personalized Medicine, Brigham and Women's Hospital & Harvard Medical School, Boston, MA, United States. Electronic address: - - 2014
In this paper we describe an efficient tool based on natural language processing for classifying the detail state of pulmonary embolism (PE) recorded in CT pulmonary angiography reports. The classification tasks include: PE present vs. absent, acute PE vs. others, central PE vs. others, and subsegmental PE vs. others. Statistical ...
Bujak Marcin M Department of Internal Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, - - 2014
Percutaneous Carotid Artery Stenting (CAS) has emerged as a less invasive alternative to carotid endarterectomy for the treatment of carotid atherosclerotic disease. The main risk of CAS is the occurrence of neuro-vascular complications, however Carotid Artery Stenting-related Dysautonomia (CAS-D) (hypertension, hypotension, and bradycardia) is the most frequently reported problem occurring ...
Valeyre Dominique D aAP-HP, Hôpital Avicenne, Service de Pneumologie bUniversité Paris 13, EA2363, Sorbonne Paris Cité, Bobigny cAPHP, Laboratoire d'anatomie et cytologie pathologique, Hôpital Tenon dDépartement d'histologie, Université Pierre et Marie Curie Paris 6, Paris, - - 2014
To present an update on the most recent contributions in advanced pulmonary sarcoidosis (APS). Pathology is better described and the differences between fibrosing pulmonary sarcoidosis and usual interstitial pneumonia (UIP) are clarified. Serial spirometry is the most reliable tool for monitoring evolution. Survival may be predicted by an integrative algorithm ...
Yousefi Rasoul - - 2014
We propose an algorithm for separating arterial and venous-related signals using second order statistics of red and infrared signals in a blind source separation technique. The separated arterial signal is used to compute accurate arterial oxygen saturation. We have also introduced an algorithm for extraction the respiratory pattern from the ...
Peach Thomas William TW Institute of Biomedical Engineering & Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, - - 2014
This paper presents the computational modeling of a variety of flow-diverting stents, deployed in a number of patient-specific aneurysm geometries. We consider virtual device deployment and hemodynamics as well as thrombus formation, with the scope to assess pre-operatively the efficacy of specific devices in treating particular aneurysms. An algorithm based ...
Douma Matthew M 1Collaborative Program in Resuscitation Science, Faculty of Medicine,University of - - 2014
Introduction Penetrating junctional trauma is a leading cause of preventable death on the battlefield. Similarly challenging in civilian settings, exsanguination from the vessels of the abdomen, pelvis, and groin can occur in moments. Therefore, iliac artery or abdominal aortic compression has been recommended. Based on prior research, 120 lbs (54 ...
Qureshi M Umar MU Department of Mathematics, International Islamic University, Sector H10, Islamabad, 44000, Pakistan, - - 2014
A novel multiscale mathematical and computational model of the pulmonary circulation is presented and used to analyse both arterial and venous pressure and flow. This work is a major advance over previous studies by Olufsen et al. (Ann Biomed Eng 28:1281-1299, 2012) which only considered the arterial circulation. For the ...
Kim Ji-Sun JS Department of Neurology, College of Medicine, Korea University, Seoul, - - 2014
To identify power motion-mode Doppler (PMD) patterns and assess their diagnostic value for the diagnosis of middle cerebral artery (MCA) stenosis. Retrospective analyses of PMD data were performed for the identification of specific patterns related to MCA stenosis. The interrater reliability and the validity of these patterns were studied, using ...
Büyükkaya Ramazan - - 2013
Pulmonary sequestration is a rare pulmonary parenchymal anomaly. The localization of the aberrant artery and its relation with sequestration are of importance in the process of diagnosis in the preoperative period. The feeding artery can be identified by color Doppler ultrasonography. We report two cases of pulmonary sequestration in two ...
Elsaftawy Ahmed - - 2013
Abstract Trans-metacarpal hand replantation is one of the most complex and difficult procedures in the reconstructive microsurgery. As far as we know the arrangement of the palmar arterial network, the problem lies in the absence of accurate venous maps at the dorsum of the hand. The quality of venous circulation ...
Thakkar Vivek - - 2013
Pulmonary arterial hypertension (PAH) is a major cause of mortality in systemic sclerosis (SSc). Screening guidelines for PAH recommend multiple investigations, including annual echocardiography, which together have low specificity and may not be cost-effective. We sought to evaluate the predictive accuracy of serum N-Terminal pro-brain natriuretic peptide (NT-proBNP) in combination ...
Saw Jacqueline - - 2013
Spontaneous coronary artery dissection (SCAD) is under-diagnosed and the true prevalence is underestimated. Unfortunately SCAD is frequently missed on coronary angiogram since the arterial wall is not imaged with this test. Optical coherence tomography or intravascular ultrasound should be the true gold-standard to diagnose SCAD. Given the elusive angiographic diagnosis ...
Takx Richard A P - - 2013
To compare coronary plaque size and composition as well as degree of coronary artery stenosis on coronary Computed Tomography angiography (CCTA) using three levels of iterative reconstruction (IR) with standard filtered back projection (FBP). In 63 consecutive patients with a clinical indication for CCTA 55 coronary plaques were analysed. Raw ...
Corcos Olivier - - 2013
Gastro-Intestinal Vascular Emergencies include all digestive ischaemic injuries related to acute or chronic vascular and/or haemodynamic diseases. Gastro-intestinal ischaemic injuries can be occlusive or non-occlusive, arterial or venous, localized or generalized, superficial or transmural and share the risks of infarction, organ failure and death. The diagnosis must be suspected, at ...
Kraaijeveld A O - - 2013
We report the occurrence of coronary vasospasm following forceful compression of the brachial artery after coronary angiography.
Terlizzi Joseph P - - 2013
Peliosis hepatis (PH) is a rare condition characterized by multiple blood-filled spaces within the hepatic parenchyma that can lead to fatal hemorrhage. There is no consensus on the best treatment algorithm for PH, and therapy is directed at removing the potential causative agent with operative intervention when necessary. Here we ...
Suarez-Sipmann Fernando - - 2013
Dead space ratio is determined using Enghoff's modification (VDB-E/VT) of Bohr's formula (VDBohr/VT) in which arterial is used as a surrogate of alveolar PCO2. In presence of intrapulmonary shunt Enghoff's approach overestimates dead space. In 40 lung-lavaged pigs we evaluated the Kuwabara's and Niklason's algorithms to correct for shunt effects ...
Sinkovskaya Elena - - 2013
Sonographic evaluation of the fetal venous system in normal and abnormal conditions has drawn increasing interest in recent years. Whereas the assessment of the fetal heart and the related arteries is standardized using well-defined planes, the fetal venous system is still lacking a systematic approach. In this article we present ...
Monge Garcia Manuel Ignacio - - 2013
The reliability of pulse pressure analysis to estimate cardiac output is known to be affected by arterial load changes. However, the contribution of each aspect of arterial load could be substantially different. In this study, we evaluated the agreement of eight non-commercial algorithms of pulse pressure analysis for estimating cardiac ...
Hall Heather A - - 2013
Peripheral aneurysms typically present as asymptomatic incidental findings or may present with symptoms when there is local compression of other structures, such as nerves or veins, with ischemia, or rarely with rupture. Larger and symptomatic aneurysms should be repaired. Ultrasonography, computed tomography angiography, and magnetic resonance angiography can be used ...
Kirişli H A - - 2013
Though conventional coronary angiography (CCA) has been the standard of reference for diagnosing coronary artery disease in the past decades, computed tomography angiography (CTA) has rapidly emerged, and is nowadays widely used in clinical practice. Here, we introduce a standardized evaluation framework to reliably evaluate and compare the performance of ...
Duru Serap S Dışkapı Yıldırım Beyazıt Research and Education Hospital, Ankara, - - 2014
Pulmonary embolism (PE) is a major cause of cardiovascular mortality and financial burden that affects the community. The diagnosis of PE can be difficult because of the nonspecific symptoms, which include cough, dyspnea, hemoptysis and pleuritic chest pain. Hereditary and acquired risk factors are associated with PE. Incidence of PE ...
Kang Dongwoo - - 2013
Purpose: Visual analysis of three-dimensional (3D) coronary computed tomography angiography (CCTA) remains challenging due to large number of image slices and tortuous character of the vessels. The authors aimed to develop a robust, automated algorithm for unsupervised computer detection of coronary artery lesions.Methods: The authors' knowledge-based algorithm consists of centerline ...
Saba Luca - - 2013
Objectives The purpose of this study was to compare automated and semiautomated algorithms for analysis of carotid artery wall thickness and intima-media thickness on multidetector row computed tomographic (CT) angiography and sonography, respectively, and to study the correlation between them. Methods Twenty consecutive patients underwent multidetector row CT angiographic and ...
Barron David J - - 2013
Evolution of the Norwood procedure has culminated in there currently being three treatment strategies available for initial management: the 'classical' Norwood (utilizing a Blalock-Taussig shunt), the Norwood with right-ventricle to pulmonary artery (RV-PA) conduit, and the 'hybrid' Norwood procedure utilizing bilateral pulmonary artery banding and ductal stenting. Each variant has ...
Joseph Vivek - - 2013
We report a case of a right radial pseudoaneurysm due to assault. The pseudoaneurysm was treated successfully with prolonged ultrasound-guided compression for more than 300 minutes over multiple sittings coupled with the use of a compression device. We believe that if initial compression fails, a prolonged ultrasound-guided compression repair coupled ...
MacDonald David - - 2012
The calcification of cervical carotid artery atheroma (CCAA) represents maturation of a lumenal atherosclerotic plaque that has been associated with a high risk of cerebral stroke. The demonstration of CCAA on rotational panoramic images has received increasing attention in dentistry since it was first described in 1981. The purposes of ...
Early Heather - - 2012
Difficult iliac artery access remains one of the limiting factors in the successful application of endovascular management of abdominal and thoracic aortic pathologies. An understanding of the scope of the problem, as well as the recognition of patient characteristics that increase the likelihood of difficult access are paramount in preoperative ...
Zamani Boroujeni Farsad - - 2012
Of interest is the accurate and robust delineation of vessel center-lines for complete arterial tree structure in coronary angiograms which is an imperative step towards 3D reconstruction of coronary tree and feature-based registration of multiple view angiograms. Most existing center-line tracking methods encounter limitations in coping with abrupt variations in ...
Demirozu Zumrut T - - 2012
Different institutions have different strategies for managing both native and prosthetic aortic valves in recipients of left ventricular assist devices (LVADs). Anticoagulation protocols and pump-flow algorithms remain nonstandardized. We describe our institutional experience with thrombotic complications and our evolving approach to this important clinical problem. We report the cases of ...
Loizou C P CP Department of Computer Science, Intercollege, Limassol, Cyprus. - - 2012
The degree of stenosis of the common carotid artery (CCA) but also the characteristics of the arterial wall including plaque size, composition and elasticity represent important predictors used in the assessment of the risk for future cardiovascular events. This paper proposes and evaluates an integrated system for the segmentation of ...
Sahani Ashish Kumar AK Department of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, India. - - 2012
Evaluation of arterial compliance is very significant in early detection of coronary heart disease. Here we present an imageless portable system for automated estimation of local arterial compliance, designed to be operated by a general medical practitioner with no prior knowledge of ultrasonography. An algorithm for automatic detection and tracking ...
Nikas D N - - 2011
Nowadays, carotid artery stenting (CAS) offers a potential alternative to carotid endarterectomy (CEA). CAS main advantages over CEA are the less invasive approach and the almost equal performance to CEA in terms of stroke prevention and complications. One of the most important factors which played significant role to CAS evolution ...
Kranioti Elena F - - 2011
Virtual approximation of the middle meningeal arterial networks and various sinuses of a Cioclovina brain. See Figure 4 in Kranioti et al., on page 1089, in this issue.
Shafi Neelofer N Department of Neurology, Comprehensive Stroke Center, Comprehensive Stroke Center, Philadelphia, PA 19104, - - 2011
The initial therapeutic approach to acute ischemic stroke consists of thrombolytic therapy and early initiation of supportive care, usually commenced prior to the determination of the underlying stroke etiology. Varying stroke mechanisms may call for specific, etiology-based treatment. The majority of strokes result from cardioembolism, large-vessel atherothromboembolism, and small-vessel occlusive ...
Arnold Marcel - - 2011
The management of cervicocephalic arterial dissections raises many unsolved issues such as: how to best acutely treat patients who present with ischemic stroke or occasionally with sub-arachnoid hemorrhage? How to best prevent ischemic stroke in patients who present with purely local signs such as headache, painful Horner Syndrome or neck ...
Corris Paul A - - 2011
The development of targeted therapies for pulmonary arterial hypertension currently based on prostaglandin, nitric oxide, and endothelin pathways has resulted in major advances in the treatment of patients with pulmonary arterial hypertension. This article reviews the current evidence that supports both the use of mono- and combination therapy. The article ...
Tremoulet Adriana H - - 2011
This study compared characteristics of Kawasaki disease (KD) in Filipino and non-Filipino children. Filipino KD patients had a higher coronary artery Z-score (P = 0.016) and aneurysm rate (P = 0.021) than KD patients of non-Filipino Asian and non-Asian descent.
Howard Virginia J VJ Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, - - 2011
In the randomised Carotid Revascularization Endarterectomy versus Stenting Trial (CREST), the primary endpoint did not differ between carotid artery stenting and carotid endarterectomy in patients with symptomatic and asymptomatic stenosis. A prespecified secondary aim was to examine differences by sex. Patients who were asymptomatic or had had a stroke or ...
Kaempf Michael - - 2011
PURPOSE: To evaluate CT reconstruction parameters to improve stent lumen visualization in vitro. MATERIAL AND METHODS: 12 latest superficial femoral artery (SFA) stents were placed in a vessel phantom (diameter 4.7mm, intravascular attenuation 250HU, extravascular density 50HU). Stents were imaged with a 128-slice scanner (SOMATOM Definition Flash, Siemens, Germany) with ...
Schreiber Benjamin E - - 2011
INTRODUCTION: We describe the successful treatment of pulmonary arterial aneurysms in Behçet's syndrome using a tumor necrosis factor (TNF) inhibitor. METHODS: A case is reported of Behçet's syndrome complicated by pulmonary arterial aneurysms that responded to anti-TNF therapy. This is accompanied by a literature review of previously published cases. We ...
Greer-Bayramoglu Rebecca J RJ Divisions of Cardiac Surgery and Plastic Surgery, University of Western Ontario, London, Ontario, - - 2011
Autologous free flap breast reconstruction using the internal mammary artery is common; however, its use may compromise treatment of occult coronary artery disease. The authors investigated whether internal mammary artery harvest for breast reconstruction is compatible with future use for coronary bypass. An anatomic analysis of 10 preserved female cadavers ...
Hare S S - - 2011
Systemic arterial air embolism is a rarely encountered but much feared complication of percutaneous lung biopsy. We present a comprehensive review of iatrogenic air embolism post-lung biopsy, a complication that is often suboptimally managed. This review was inspired by our own institutional experience and we use this to demonstrate that ...
Lazzaro Marc A - - 2011
Standard measurement criteria for vertebral artery origin (VAO) stenosis have not yet been established. We propose such criteria and report on interrater agreement using two measurement methods in a series of patients referred for endovascular therapy. Three experienced angiography raters independently reviewed magnified cerebral angiograms. The formula [1 - (Ds/Dn)] ...
Politi Luigi - - 2011
Background: Occupational radiation exposure is a growing problem due to the increasing number and complexity of interventional procedures performed. Radial artery access has reduced the number of complications at the price of longer procedure duration. Radpad® scatter protection is a sterile, disposable bismuth-barium radiation shield drape that should be able ...
Khansa Ibrahim - - 2011
Two cases are reported of flap loss following microsurgical perforator flap breast reconstruction in patients diagnosed with a factor V Leiden mutation. Factor V Leiden is the most common inherited cause of hypercoagulability, leading to an increased risk of thrombotic events. The first patient underwent a deep inferior epigastric artery ...
Brzozowski Krzysztof - - 2011
BACKGROUND: Hyperactive thyroid gland in patients that are unable to tolerate or accept standard therapy is a common clinical problem. Aim of the study was to evaluate effectiveness of partial thyroid arterial embolization in patients with hyperthyroidism. MATERIAL/METHODS: From May 2004 to November 2005 partial thyroid gland embolization was performed ...
Lessne Mark L - - 2011
BACKGROUND:: The Neuroform™ Stent has facilitated the endovascular treatment of wide-necked cerebral aneurysms. It is unknown which factors pose risks of thromboembolic events following stent placement. Objective: This series is the largest single-center study reporting on incidence of and factors influencing thromboembolic complications following Neuroform™ stent placement. METHODS:: 235 patients ...
Hahne J D - - 2011
PURPOSE: To determine the correlation of maximal diameter measurements with volumetric evaluation of size after endovascular aortic repair (EVAR) of abdominal aortic aneurysms (AAA) using computed tomography angiography (CTA) and to survey its applicability for clinical follow-up. MATERIALS AND METHODS: 73 consecutive patients (2 females, 71 males; age 38-84 years; ...
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