نتایج جستجو برای: fuzzy structured element fse

تعداد نتایج: 420171  

2000
David Cheng Steven Thibodeau Steve Tan Clare M.C. Tempany

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...

2017
PARAMJEET SINGH M. J. NIGAM

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...

2010
Jonathan Lawry

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...

Journal: :AJNR. American journal of neuroradiology 2015
S Narumi M Sasaki T Natori M Yamaguchi Oura K Ogasawara M Kobayashi Y Sato Y Ogasawara J Hitomi Y Terayama

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...

Journal: :African J. of Inf. & Commun. Technology 2011
Bala Murugan vanniappan

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...

Journal: :Journal of Korean Institute of Intelligent Systems 2015

2009
C. Lee M. Saranathan G. Hesley R. Maxwell K. Brandt

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...

Journal: :Magnetic resonance in medicine 2008
Joelle E Sarlls Carlo Pierpaoli

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...

2010
E. Harris S. Collette C. E. Coles H. Bartelink J. Haviland P. Poortmans P. M. Evans J. Yarnold R. Jena

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...

2002
Eugene G. Kholmovski Alexei A. Samsonov Dennis L. Parker

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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