Results 261 to 270 of about 3,372,624 (300)

Contrast‐enhanced MR angiography

Journal of Magnetic Resonance Imaging, 1993
AbstractMagnetic resonance (MR) angiography, although still in its infancy, is recognized as a valuable diagnostic tool. Investigation of the utility of contrast media as applied to MR angiography is, to no surprise, preliminary. In restricted instances, with present techniques, contrast media‐enhanced MR angiography can provide additional valuable ...
V M, Runge, J E, Kirsch, C, Lee
openaire   +2 more sources

Contrast-enhanced MR angiography

Der Radiologe, 1996
Despite many optimizations, the current limitations of plain MR angiography include: saturation that impairs the visualization of veins and arteries with slow flow and spin-dephasing signal voids in locations with turbulent flow. Recently, the use of contrast agents has been proposed to cope with these remaining problems.
H, Bosmans, G, Marchal
openaire   +2 more sources

Contrast-Enhanced Ultrasound Ventriculography

Operative Neurosurgery, 2012
During external ventricular drainage (EVD) weaning, cranial computed tomography (cCT) is necessary to evaluate ventricle width. Because intrahospital transfer of critically ill patients is associated with higher mortality, bedside techniques are necessary to evaluate ventricle width.
Andreas, Becker, Daniela, Kuhnt, Udo, Bakowsky, Christopher, Nimsky   +3 more
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Contrast-enhanced ultrasound fundamentals: the pharmacodynamics and pharmacokinetics of contrast. Basics of contrast-enhanced ultrasound imaging

Radiología (English Edition)
Contrast-enhanced ultrasound (CEUS) is a medical imaging technique that offers multiple advantages over other modalities such as computed tomography (CT) and magnetic resonance imaging (MRI). These advantages include portability, no ionising radiation and no renal toxicity, with the great advantage of real-time imaging.
Echeveste M, González T, Pascual E
openaire   +3 more sources

A Histogram Adaptation for Contrast Enhancement

2011
Histogram equalization is the common methods used for improving contrast in image processing application. But this technique is not well suited for implementation in consumer electronics such as television as it introduces unnecessary visual deterioration such as the saturation effect. It causes changes in the brightness of the input image.
Lisha Thomas, K. Santhi
openaire   +1 more source

Comparison of Contrast-Enhanced Mammography and Contrast-Enhanced Breast MR Imaging

Magnetic Resonance Imaging Clinics of North America, 2018
Contrast-enhanced mammography (CEM) is a contrast-enhanced modality for breast cancer detection that utilizes iodinated contrast and dual-energy imaging performed on a digital mammography unit with only slight modifications. It is approved by the US Food and Drug Administration, commercially available, and in routine clinical use at centers around the ...
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Contrast-Enhanced Ultrasound for the Prostate

2009
Imaging of the prostate can be performed using different imaging techniques and has several applications in the evaluation of benign and malignant prostate diseases. Many imaging techniques are used to detect and follow up abnormalities of the prostate such as prostatitis, abscesses, benign prostate hyperplasia, and prostate cancer, or to investigate ...
Wondergem, N., de la Rosette, J. J. M. C. H.   +1 more
openaire   +2 more sources

A novel fuzzy logic approach to contrast enhancement

Pattern Recognition, 2000
Huijuan Xu, H D Cheng
exaly  

A Histogram Modification Framework and Its Application for Image Contrast Enhancement

IEEE Transactions on Image Processing, 2009
Tarik Arici, Yücel Altunbaşak
exaly  

Spatial Entropy-Based Global and Local Image Contrast Enhancement

IEEE Transactions on Image Processing, 2014
Turgay Çelik
exaly