Guylaine Collewet

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This paper gives an overview of SIMRI, a new 3D MRI simulator based on the Bloch equation. This simulator proposes an efficient management of the T2* effect, and in a unique simulator integrates most of the simulation features that are offered in different simulators. It takes into account the main static field value and enables realistic simulations of the(More)
Texture analysis methods quantify the spatial variations in gray level values within an image and thus can provide useful information on the structures observed. However, they are sensitive to acquisition conditions due to the use of different protocols and to intra- and interscanner variations in the case of MRI. The influence was studied of two protocols(More)
Complete dissection is the current reference method to quantify muscle and fat tissue on pig carcasses. Magnetic resonance imaging (MRI) is an appropriate nondestructive alternative method that can provide reliable and quantitative information on pig carcass composition without losing the spatial information. We have developed a method to quantify the(More)
We propose a method to reduce the noise and to eliminate the effects of the inhomogeneity of the Radio-Frequency (RF) pulses and of the sensivity of the RF reception, particularly in the case of MR T-weighted images acquired with a low-field MRI system. In T-weighted images the effects of the pulse inhomogeneities vary with the tissues. Consequently the(More)
We propose a correction method for magnetic resonance (MR) images to eliminate the effects of the inhomogeneity of the radio-frequency (RF) pulses and of the sensivity of the RF reception particularly in the case of T 1-weighted images. In this case the effects of the pulse inhomogeneities vary with the tissues, which prevents the use of simpler correction(More)
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