نتایج جستجو برای: micro vessel density

تعداد نتایج: 597580  

Journal: :Turk patoloji dergisi 2015
Azadeh Andishehtadbir Ali Dehghani Najvani Soheil Pardis Zohreh Jafari Ashkavandi Mohammad Javad Ashraf Bijan Khademi Fereshteh Kamali

OBJECTIVE Metastasis-associated protein 1 (MTA1) has been associated with poor prognosis in several carcinomas. Recent investigation has found that in different tumors, MTA1 protein significantly correlates with tumor angiogenesis, suggesting that MTA1 may be a possible angiogenesis-promoting molecule in malignant tumors. Thus, the current study was performed to determine the role of MTA1 prote...

2012
X.-L. Qi J. Liu P. N. Burns G. A. Wright

Blood supply is crucial for rapid growth of a malignant tumor; medical imaging can play an important role in evaluating the vascular characterstics of tumors. Magnetic resonance imaging (MRI) and micro-computed tomography (CT) are able to detect tumors and measure blood volumes of microcirculation in tissue. In this study, we used MR imaging and micro-CT to assess the microcirculation in a VX2 ...

Journal: :International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience 2009
Laurent Risser Franck Plouraboué Peter Cloetens Caroline Fonta

This paper describes the use of a new 3D high-resolution imaging technique dedicated to functional vessels for a systematic quantitative study of angiogenesis in the primate cortex. We present a new method which permits, using synchrotron X-ray micro-tomography imaging, the identification of micro-vascular components as well as their automatic numerical digitalization and extraction from very l...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2014
Markus Rempfler Matthias Schneider Giovanna D. Ielacqua Xianghui Xiao Stuart R. Stock Jan Klohs Gábor Székely Bjoern Andres Bjoern H. Menze

We introduce an integer programming-based approach to vessel network extraction that enforces global physiological constraints on the vessel structure and learn this prior from a high-resolution reference network. The method accounts for both image evidence and geometric relationships between vessels by formulating and solving an integer programming problem. Starting from an over-connected netw...

Faezeh Foroughi Fahimeh Asadi Amoli, Hormoz Shams Issa Jahanzad

  Background and Objectives: Retinoblastoma is the most common intraocular pediatric malignancy. Angiogenic factor expression such as VEGF (vascular endothelial growth factor) in retinoblastoma can be confirmatory angiogenic potential of this tumor. This study was performed to determine the role of angiogenesis in local invasion of retinoblastoma and its correlation with patients’ sur...

Journal: :Biomaterials 2006
Sumona Sarkar George Y Lee Joyce Y Wong Tejal A Desai

The fabrication of functional small diameter blood vessel analogs has implications in vascular disease treatment. Current 3D models of the medial vessel layer lack micron-scale topographical cues that have shown promise in vitro by recapitulating native vascular smooth muscle cell (VSMC) behavior. A major obstacle to fabricating 3D scaffolds is maintaining adequate nutrient diffusion to cells. ...

Hossein Ghadiri, Zahra Khodabakhshi

Introduction: Microbubbles are widely used as contrast agent in diagnostic ultrasound. Recently they have shown good potential for applications in the therapeutic field such as drug delivery to the brain. Recent studies have shown focused ultrasound in conjunction with injected micro-bubbles could temporarily disrupt blood-brain barrier and let therapeutic agents transport into...

Journal: :Hearing research 1985
L C Shaddock R P Hamernik C G Wright

A computer based system was developed for morphometric analysis of the cochlear lateral wall vasculature. Variables measured were vascular density, RBC density, vessel width, aggregation density, lumen compression count, WBC count and pigment density. Vessels were divided into three systems based on the lateral wall structures that they supplied. The results indicated that these three vessel sy...

Journal: :Journal of the Japan Society of Colour Material 1962

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