Contrast-enhanced ultrasound
An original methodology for quantitative assessment of perfusion in small animal studies using contrast-enhanced ultrasound.
... Abstract— The aim of this paper was to validate the com- binaison of two original methods for assessing perfusion in small animal studies using Contrast-Enhanced Ultrasound. Respiratory motion was ...
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Utility of Elastography and Contrast-enhanced Ultrasound For The Differentiation of Tumor Modifications Between Antiangiogenic and Cytotoxic Therapy
... Actes des Journées Recherche en Imagerie et Technologies pour la Santé - RITS 2015 66 Abstract – Robust, novel information on tumor microenvironment would improve therapeutic follow-up in oncology. Shear wave ...
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Local classification of microvascular function based on contrast-enhanced ultrasound data: a feasibility study
... Dynamic contrast-enhanced ultrasound can detect microvascular flow changes during tumor develop- ment and antiangiogenic ...trasound contrast agent in the ...
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en fr Quantification of tissue perfusion using contrast-enhanced ultrasound : toward robust exam comparison Quantification de la perfusion tissulaire en échographie de contraste : vers la comparaison robuste d'examens
... for indicator-dilution theory, and Axel [ 7 ] for perfusion computed-tomography imaging. In 1994 , Rempp et al. [ 129 ] investigated susceptibility Gd-DTPA2-enhanced MRI to quan- tify cerebral perfusion in a ...
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VEGFR2-targeted contrast-enhanced ultrasound to distinguish between two antiangiogenic treatments
... volume, contrast-enhanced area and dTE) were normalized with respect to the baseline values (fixed at 100%) for each mouse to evaluate individual ...
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Empirical Research On The Optimization Of The Frequency Parameters Of " Chirp " Sequences Used In Contrast Ultrasound Imaging
... and Contrast Ultrasound Imaging. 1. Introduction Contrast Enhanced Ultrasound imaging (CEUS) is an imaging technique involving the flushing of a contrast agent (made up of ...
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Contrast-enhanced and targeted ultrasound
... of ultrasound waves at clinical diagnostic transmit ...the contrast in B-mode imaging. These so-called ultrasound contrast agents consist of microscopically small gas bubbles encapsulated in ...
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Dynamic contrast-enhanced MRI: Study of inter-software accuracy and reproducibility using simulated and clinical data
... Twenty-seven consecutive patients (22 males, 5 females, mean age 62 years, range 31-82), screened in our institution for the GRECCAR 4 study investigating early response to chemotherapy in locally advanced rectal cancer, ...
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Automated Quantification of Right Ventricular Fat at Contrast-enhanced Cardiac Multidetector CT in Arrhythmogenic Right Ventricular Cardiomyopathy
... Methods: This study was approved by the institutional review board, and all patients gave informed consent. Thirty-six patients with ARVC (mean age 6 standard deviation, 46 years 6 15; seven women) were compared with 36 ...
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Pathological mechanism for delayed hyperenhancement of chronic scarred myocardium in contrast agent enhanced magnetic resonance imaging
... relaxation rate of P792 (large molecular weight) between scarred and normal myocardium. Saeed et al also found that intravascular CA did not produce the delayed hyperenhancement of 8-week-old scar tissue [23]. The ...
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Reconstruction of Enhanced Ultrasound Images From Compressed Measurements Using Simultaneous Direction Method of Multipliers
... APPENDIX B COMPARISON WITH CLASSICAL DECONVOLUTION METHODS Our reconstruction framework can be used as a decon- volution method if the full data is considered, i.e., without randomly decreasing the number of ...
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Collateral circulation formation determines the characteristic profiles of contrast-enhanced MRI in the infarcted myocardium of pigs
... Lack of collateral flow and the hypoenhancement of first-pass perfusion and delayed enhancement MRIs in acute myocardial infarction The acutely infarcted myocardium did not show an increase in signal intensity on either ...
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Contrast-to-Tissue Ratio Improvement by Transmitted Optimized Binary Signal in Ultrasound Pulse Inversion Imaging
... netic algorithm required 0.4(12N s )+6 random selections per generation to achieve the optimum. Taking into account the computing power available for a personal computer, the two last operations must not slow down the ...
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Reconstruction of Enhanced Ultrasound Images From Compressed Measurements Using Simultaneous Direction Method of Multipliers
... A PPENDIX B C OMPARISON W ITH C LASSICAL D ECONVOLUTION M ETHODS Our reconstruction framework can be used as a decon- volution method if the full data is considered, i.e., without randomly decreasing the number of ...
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Automatic Approach Seeking Optimal Frequency Modulation Parameters In Chirp Inversion and Chirp Reversal Ultrasound Contrast Imaging
... Automatic Approach Seeking Optimal Frequency Modulation Parameters In Chirp Inversion and Chirp Reversal Ultrasound Contrast Imaging A. Zaylaa a,b,c , S. Ménigot a,b , J. Charara d and J.-M. Girault a,b a. ...
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Can dynamic contrast-enhanced magnetic resonance imaging combined with texture analysis differentiate malignant glioneuronal tumors from other glioblastoma?
... Figure 1: From top to bottom T1-weighted MR image before and 3 min after contrast agent injection, calculated map of transfer constant ( K trans in min −1 ) and of extracellular extravascular space fraction ( v e ...
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Computing lexical contrast
... lexical contrast in a resource-poor language by using a bilingual lexicon to connect the words in that language with words in another resource-rich ...lexical contrast in a language even if it does not have ...
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Contrast enhancement of propagation based X-ray phase contrast imaging
... These results are show that X-ray phase contrast tomography has significant potential in the medical imaging applications. In the future, X-ray phase CT may find many applications in diagnostic medicine. For ...
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Chromatic Contrast Sensitivity
... Chromatic contrast refers to the occurrence of differences in chromaticity (saturated, hue- full color) in a visual percept (scene, image, stimu- ...chromatic contrast) or in changes of chromaticity across ...
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Contrast-enhanced MR microscopy of amyloid plaques in five mouse models of amyloidosis and in human Alzheimer’s disease brains
... to detect amyloid plaques in animals. As with PET, optical imaging is too low-resolution to identify individual plaques. Two-photon imaging, however, can reveal individual amyloid plaques at very high resolution (1 μm) ...
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