نتایج جستجو برای: fuzzy structured element fse
تعداد نتایج: 420171 فیلتر نتایج به سال:
Introduction The FRFSE sequence is a modification to the standard FSE sequence in which additional RF pulses are used to accelerate recovery of longitudinal magnetization after the echo train is acquired. The sequence can provide enhanced fluid signal in the setting of short TR for joint imaging. We compared this sequence to standard FSE using a long TR for axial endorectal coil T2 weighted ima...
Edge detection finds its use in numerous applications such as feature extraction, diagnosis in medical imaging and computer vision. Number of techniques are being used for filtering out the less relevant information from the images while preserving the basic structural properties. In this paper a comparative study of Sobel, Laplacian of Gaussian, Canny, Gabor Wavelets, Structured Forests and Mo...
An interpretation of intuitionistic fuzzy sets is proposed based on random set theory and prototype theory. The extension of fuzzy labels are modelled by lower and upper random set neighbourhoods, identifying those element of the universe within an uncertain distance threshold of a set of prototypical elements. These neighbourhoods are then generalised to compound fuzzy descriptions generated a...
BACKGROUND AND PURPOSE 3D FSE T1WI has recently been used for carotid plaque imaging, given the potential advantages in contrast and spatial resolutions. However, its diagnostic performance remains unclear. Hence, we compared the ability of this technique to readily assess plaque characteristics with that of conventional images and validated the results with histologic classification. MATERIA...
Most query languages are designed to retrieve information from databases containing precise and certain data using precisely specified commands. Due to the advancements in various kinds of data repositories in the recent years, there is a steep increase in complex queries. Most of the complex Queries are uncertain and vague. The existing Structured Query Language exhibits its inefficiency in ha...
INTRODUCTION: Balanced steady-state free precession (b-SSFP) techniques yielding high SNR images in short scan times with T2-like image contrast have several appealing attributes for clinical breast MRI [1]. Clinical T2 imaging in the breast is routinely performed using a fat suppressed 2D Fast Spin Echo (FSE) pulse sequence with high in-plane spatial resolution. The 3-5 mm slice thickness obsc...
There is a need for an imaging sequence that can provide high-resolution diffusion tensor images at 3T near air-tissue interfaces. By employing a radial fast spin-echo (FSE) collection in conjunction with magnitude filtered back-projection reconstruction, high-resolution diffusion-weighted images can be produced without susceptibility artifacts. However, violation of the Carr-Purcell-Meiboom-Gi...
Image registration accuracy was<2mm for all anatomic head and neck landmark displacements in the x, y and z direction relative to CT. Image quality was found to be comparable to the commissioning benchmark. SNR data for T1 FSE and T2 FSE were not statically significantly different (p= 0.53, 0.10) from benchmark dataset. However, the benchmark configuration appears to provide more optimized sign...
There is considerable similarity between proton density-weighted (PDw) and T2-weighted (T2w) images acquired by dual-contrast fast spin-echo (FSE) sequences. The similarity manifests itself in image space as consistency between the phases of PDw and T2w images and in k-space as correspondence between PDw and T2w k-space data. A method for motion artifact reduction for dual-contrast FSE imaging ...
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