نتایج جستجو برای: micro vessel density

تعداد نتایج: 597580  

ژورنال: سنجش و ایمنی پرتو 2017

The attenuation ability of composites containing micro and nano-sized WO3 was measured and compared with the attenuation ability of composites containing micro-size and nano-sized PbO for X-rays in diagnostic energy range. For the purpose, after synthesizing nano and micro-scaled particles, different percentages of them were imbedded in poly vinyl chloride (EPVC) emulsion and prepared as shield...

2016
Adeleh Yarmohammadi Linda M. Zangwill Alberto Diniz-Filho Min Hee Suh Patricia Isabel Manalastas Naeem Fatehee Siamak Yousefi Akram Belghith Luke J. Saunders Felipe A. Medeiros David Huang Robert N. Weinreb

PURPOSE The purpose of this study was to compare retinal nerve fiber layer (RNFL) thickness and optical coherence tomography angiography (OCT-A) retinal vasculature measurements in healthy, glaucoma suspect, and glaucoma patients. METHODS Two hundred sixty-one eyes of 164 healthy, glaucoma suspect, and open-angle glaucoma (OAG) participants from the Diagnostic Innovations in Glaucoma Study wi...

Journal: :Investigative ophthalmology & visual science 2017
Fangyao Tang Carol Y Cheung

Purpose To compare optical coherence tomography (OCT) angiographic parameters in retina and choriocapillaris between control subjects and diabetic patients without diabetic retinopathy (NDR). Correlations were studied between OCT angiography parameters, retinal structure parameters, and systemic characteristics in all subjects. Methods Sixty-two patients were included in the study: control su...

2017
Axel Neulen Tobias Pantel Michael Kosterhon Stefanie Kirschner Marc A. Brockmann Sven R. Kantelhardt Alf Giese Serge C. Thal

INTRODUCTION Quantification of cerebral vasospasm after subarachnoid hemorrhage (SAH) is crucial in animal studies as well as clinical routine. We have developed a method for computer-based volumetric assessment of intracranial blood vessels from cross-sectional imaging data. Here we demonstrate the quantification of vasospasm from micro computed tomography (micro-CT) data in a rodent SAH model...

2014
Vijayaragavan Muralidharan Linh Nguyen Jonathan Banting Christopher Christophi

Background. Colorectal Cancer (CRC) is the most common form of cancer diagnosed in Australia across both genders. Approximately, 40%-60% of patients with CRC develop metastasis, the liver being the most common site. Almost 70% of CRC mortality can be attributed to the development of liver metastasis. This study examines the pattern and density of lymphatics in colorectal liver metastases (CLM) ...

Journal: :AJNR. American journal of neuroradiology 2012
G Figueiredo H Boll M Kramer C Groden M A Brockmann

BACKGROUND AND PURPOSE Investigation of the anatomy, patency, and blood flow of arterial and venous vessels in small animal models of cerebral ischemia, venous thrombosis, or vasospasm is of major interest. However, due to their small caliber, in vivo examination of these vessels is technically challenging. Using micro-CT, we compared the feasibility of in vivo DSA and CTA of the murine cerebro...

Journal: :Development 2016
Emma C Watson Monica N Koenig Zoe L Grant Lachlan Whitehead Evelyn Trounson Grant Dewson Leigh Coultas

The growth of hierarchical blood vessel networks occurs by angiogenesis. During this process, new vessel growth is accompanied by the removal of redundant vessel segments by selective vessel regression ('pruning') and a reduction in endothelial cell (EC) density in order to establish an efficient, hierarchical network. EC apoptosis has long been recognised for its association with angiogenesis,...

Journal: :Biophysical journal 2003
Michael L Smith David S Long Edward R Damiano Klaus Ley

High-resolution near-wall fluorescent microparticle image velocimetry (micro-PIV) was used in mouse cremaster muscle venules in vivo to measure velocity profiles in the red cell-depleted plasma layer near the endothelial lining. micro-PIV data of the instantaneous translational speeds and radial positions of fluorescently labeled microspheres (0.47 microm) in an optical section through the mids...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2003
Maximilian Bockhorn Yoshikazu Tsuzuki Lei Xu Andreja Frilling Christoph E Broelsch Dai Fukumura

PURPOSE The objectives of this study were to investigate the effects of anti-vascular endothelial growth factor (VEGF) treatment on various vascular functions, gene expression, and growth of orthotopic human pancreatic cancer xenografts and thus to provide useful preclinical data for novel cancer treatments. EXPERIMENTAL DESIGN Small pieces of a human pancreatic carcinoma, PANC-1, were implan...

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