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Total 43642 results found since Jan 2013.

Radiological assessment of vascular access in haemodialysis patients.
Authors: Kamper L, Frahnert M, Grebe SO, Haage P Abstract Clinical examination is still the most important diagnostic tool and duplex ultrasonography is the imaging method of first choice. Radiological assessment of vascular access for haemodialysis includes preoperative analysis of vessel anatomy and postoperative surveillance for access maturation as well as diagnosis in vascular access insufficiency. Compared to ultrasonography digital subtraction angiography is superior for the evaluation of the central veins and allows diagnosis and treatment in one session. Computed tomography should only be used in patients ...
Source: The Journal of Vascular Access - November 27, 2014 Category: Surgery Tags: J Vasc Access Source Type: research

Imaging in vascular disease
This article introduces the basic principles, advantages and limitations of imaging frequently used to assess patients with vascular disease. The roles of duplex ultrasonography (DUS), magnetic resonance imaging (MRI), computerized tomography (CT) and digital subtraction angiography (DSA) in the vascular patient are reviewed.
Source: Surgery (Medicine Publishing) - June 9, 2015 Category: Surgery Authors: Andy R. Weale, Daniel Urriza-Rodriguez Tags: Vascular surgery I Source Type: research

Asynchronous vascular consultation via electronic methods: A feasibility pilot
Management of chronic disease often requires multidisciplinary clinical efforts and specialist care. With the emergence of Accountable Care Organizations (ACOs), health care systems are incentivized to evaluate methods of information exchange between generalists and specialists in order to provide value while preserving quality. Our objective was to evaluate patient and referring provider satisfaction and outcomes of asynchronous electronic consultations in vascular care in a large tertiary academic medical center. Referring providers were offered a vascular ‘e-consult’ option through an electronic referral man...
Source: Vascular Medicine - November 23, 2015 Category: Internal Medicine Authors: Chittle, M. D., Rao, S. K., Jaff, M. R., Patel, V. I., Gallen, K. M., Avadhani, R., Ferris, T. G., Wasfy, J. H. Tags: Original Articles Source Type: research

Imaging in vascular disease
This article introduces basic principles, advantages and limitations of imaging modalities frequently used to assess patients with vascular disease. The roles of duplex ultrasonography (DUS), computed tomography (CT), magnetic resonance imaging (MRI), and digital subtraction angiography (DSA) in the vascular patient are reviewed.
Source: Surgery (Medicine Publishing) - April 26, 2018 Category: Surgery Authors: Alexander D. Horsch, Andy R. Weale Tags: Vascular surgery – I Source Type: research

An atypical case of contrast-induced encephalopathy after carotid artery stenting.
Abstract Neurotoxicity caused by contrast agents is a rare and less known complication of percutaneous carotid and coronary interventions. Radiological signs, such as cortical enhancement and brain edema, are of utmost importance in diagnosis. A 70-year-old female patient underwent left carotid artery stenting to treat a post-traumatic asymptomatic carotid dissection. Three hours after intervention, a mild aphasia developed with no brain alteration on diffusion-weighted magnetic resonance imaging (DW-MRI). Twelve hours after intervention, symptoms worsened but a new DW-MRI scan showed no pathological findings. Sin...
Source: Vascular - April 1, 2013 Category: Surgery Authors: Menna D, Capoccia L, Rizzo AR, Sbarigia E, Speziale F Tags: Vascular Source Type: research

Comparison of vascular growth factors in the murine brain reveals placenta growth factor as prime candidate for CNS revascularization
Vascular bypass procedures in the central nervous system (CNS) remain technically challenging, hindered by complications and often failing to prevent adverse outcome such as stroke. Thus, there is an unmet clinical need for a safe and effective CNS revascularization. Vascular endothelial growth factors (VEGFs) are promising candidates for revascularization; however, their effects appear to be tissue-specific and their potential in the CNS has not been fully explored. To test growth factors for angiogenesis in the CNS, we characterized the effects of endothelium-specific growth factors on the brain vasculature and parenchym...
Source: Blood - August 1, 2013 Category: Hematology Authors: Gaal, E. I., Tammela, T., Anisimov, A., Marbacher, S., Honkanen, P., Zarkada, G., Leppanen, V.-M., Tatlisumak, T., Hernesniemi, J., Niemela, M., Alitalo, K. Tags: Vascular Biology, Gene Therapy Source Type: research

Image-guided Intervention in Management of Complications of Portal Hypertension: More than TIPS for Success Vascular/Interventional Radiology
Management of clinically important sequelae of portal hypertension, such as variceal bleeding and ascites, may involve a combination of medical, endoscopic, surgical, and interventional approaches and procedures. Although clinically significant esophageal and rectal varices are typically visible endoscopically, ectopic varices may require multiplanar portal venous phase computed tomography or magnetic resonance imaging for diagnosis. A detailed understanding of individual vascular anatomy, flow dynamics, and patient-related factors such as cardiac and hepatic status is necessary for appropriate treatment selection in patie...
Source: Radiographics recent issues - September 11, 2013 Category: Radiology Authors: Kirby, J. M., Cho, K. J., Midia, M. Tags: Interventional Radiology, Vascular Imaging Vascular/Interventional Radiology Source Type: research

Establishment and effect evaluation of an aortic dissection model induced by different doses of β-aminopropionitrile in rats.
CONCLUSIONS: An aortic dissection model with a high incidence and low mortality was successfully and stably developed with 0.08% β-aminopropionitrile. This model will enable further studies investigating aortic dissection pathogenesis and drug therapy. Magnetic resonance imaging may be a reliable technique for imaging the aorta in rats. PMID: 33357159 [PubMed - as supplied by publisher]
Source: Vascular - December 23, 2020 Category: Surgery Authors: Lv X, Hu Y, Chen X, Chen X, Chen L, Lin Y, Hou Y Tags: Vascular Source Type: research

Endovascular Treatment of Slow-Flow Vascular Malformations
Symptomatic slow-flow vascular malformations include venous malformations and lymphatic malformations, as well as combined anomalies. Endovascular therapy, consisting mainly of intralesional sclerosant injection, is now accepted as the primary treatment for most of these lesions. Magnetic resonance imaging and ultrasonography supplement physical examination for diagnosis and assessment of the extent of malformation. Endovascular treatment is usually carried out under general anesthesia. Sclerosants for venous malformations include ethanol, 3% sodium tetradecyl sulfate, and bleomycin. Lymphatic malformations can be injected...
Source: Techniques in Vascular and Interventional Radiology - March 1, 2013 Category: Radiology Authors: Patricia E. Burrows Source Type: research

Animal models of atherosclerosis and magnetic resonance imaging for monitoring plaque progression.
Abstract Atherosclerosis, the main cause of heart attack and stroke, is the leading cause of death in most modern countries. Preventing clinical events depends on a better understanding of the mechanism of atherosclerotic plaque destabilization. Our knowledge on the characteristics of vulnerable plaques in humans has grown past decades. Histological studies have provided a precise definition of high-risk lesions and novel imaging methods for human atherosclerotic plaque characterization have made significant progress. However the pathological mechanisms leading from stable lesions to the formation of vulnerable pl...
Source: Vascular - March 14, 2013 Category: Surgery Authors: Millon A, Canet-Soulas E, Boussel L, Fayad Z, Douek P Tags: Vascular Source Type: research

Diagnosis and Whole Body Screening Using Blood Pool Scintigraphy for Evaluating Congenital Vascular Malformations
Conclusion: WBBPS is a valuable diagnostic and screening modality for the initial evaluation of CVM because of its high characterizing accuracy of 97.1% and the ability to image the whole body.
Source: Annals of Vascular Surgery - December 2, 2013 Category: Surgery Authors: Young Hwan Kim, Joon Young Choi, Young-Wook Kim, Dong-Ik Kim, Young Soo Do, Yearn Seong Choe, Kyung-Han Lee, Byung-Tae Kim Tags: Clinical Research Source Type: research

Arterial Tortuosity: An Imaging Biomarker of Childhood Stroke Pathogenesis? Clinical Sciences
Conclusions— In children with dissection and transient cerebral arteriopathy, cerebral arteries demonstrate increased tortuosity. Quantified arterial tortuosity may represent a clinically relevant imaging biomarker of vascular biology in pediatric stroke.
Source: Stroke - April 24, 2016 Category: Neurology Authors: Wei, F., Diedrich, K. T., Fullerton, H. J., deVeber, G., Wintermark, M., Hodge, J., Kirton, A., the Vascular Effects of Infection in Pediatric Stroke (VIPS) Investigators, Dowling, Benedict, Bernard, Fox, Friedman, Lo, Ichord, Tan, Mackay, Hernandez, Hump Tags: Risk Factors, Angiography, Magnetic Resonance Imaging (MRI), Ischemic Stroke, Vascular Disease Clinical Sciences Source Type: research

Primary venous aneurysms: A 20-year retrospective analysis.
CONCLUSIONS: Primary venous aneurysms present infrequently. Despite their rarity, primary venous aneurysms have been reported to occur throughout the venous system. The majority of primary venous aneurysms in this series were found incidentally and can present both symptomatically or asymptomatically. The findings of our 20-year experience were consistent with the existing literature. Because the risk of rupture is negligible, the indications for surgical management remain for cosmesis, symptom management or high risk of thromboembolic events. PMID: 32393107 [PubMed - as supplied by publisher]
Source: Vascular - May 10, 2020 Category: Surgery Authors: Gabriel S, Eisenberg N, Kim D, Jaberi A, Roche-Nagle G Tags: Vascular Source Type: research

Imaging in vascular surgery
A modern vascular service cannot function without high quality, timely and relevant diagnostic imaging. In this age of evidence-based medicine, radiological findings and their expert interpretation are fundamental in aiding decisions with regard to patient management and surgical intervention. In this chapter we present the basic principles, clinical indications, advantages and limitations of the different imaging modalities used to assess vascular patients including duplex ultrasound (DUS), computed tomography (CT), magnetic resonance imaging (MR) and digital subtraction angiography (DSA).
Source: Surgery (Medicine Publishing) - April 15, 2021 Category: Surgery Authors: Tarryn Carlsson Tags: Vascular surgery – I Source Type: research

Ultra-Sensitive Molecular MRI of Vascular Cell Adhesion Molecule-1 Reveals a Dynamic Inflammatory Penumbra After Strokes Basic Sciences
Conclusions— MPIOs-αVCAM-1–enhanced imaging seems to be promising in the detection of individuals presenting with severe cerebrovascular responses after stroke, which could therefore benefit from anti-inflammatory treatments.
Source: Stroke - June 24, 2013 Category: Neurology Authors: Gauberti, M., Montagne, A., Marcos-Contreras, O. A., Le Behot, A., Maubert, E., Vivien, D. Tags: Computerized tomography and Magnetic Resonance Imaging, Thrombolysis, Endothelium/vascular type/nitric oxide Basic Sciences Source Type: research