Radiology & MRI

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The Centre for Medical Image Computing combines excellence in medical imaging sciences with innovative computational methodology.

UK Imaging Informatics Group >> Welcome

http://www.pacsgroup.org.uk/cgi-bin/forum/show.cgi?17823/17823 Welcome to the UK Imaging Informatics Group
http://www.revisemri.com/questions/misc/mri_abbrev

MRI Abbreviations

Adaptive Phase Array
Cambridge Breast Unit, Addenbrooke’s Hospital, Cambridge University Hospital NHS Foundation Trust and NIHR Cambridge Biomedical Research Centre, Cambridge CB2 2QQ, UK Cambridge Breast Unit, Addenbrooke’s Hospital, Cambridge University Hospital NHS Foundation Trust and NIHR Cambridge Biomedical Research Centre, Cambridge CB2 2QQ, UK.

The genomic and transcriptomic architecture of 2,000 breast tumours reveals novel subgroups : Nature

http://www.nature.com/nature/journal/vaop/ncurrent/full/nature10983.html
Note : This code is compatible with 64bit Matlab versions.

Kinect Matlab - File Exchange - MATLAB Central

http://www.mathworks.com/matlabcentral/fileexchange/30242-kinect-matlab?s_cid=edu_cr_2984
While satellite photographs and radar provide high-resolution images of virtually every square meter of the earth's surface, views of the ocean floor are spottier and less detailed.

Italia - Developing and Deploying Sonar and Echosounder Data Analysis Software - MathWorks Newsletter

http://www.mathworks.it/company/newsletters/articles/developing-and-deploying-sonar-and-echosounder-data-analysis-software.html?s_v1=40215688_1-5RQ292

www.mrc.wayne.edu

The arrows in the SWI image may show the tissue at risk that has been affected by the stroke (A, B, C) and the location of the stroke itself (D). -first image: Contrast enhanced T1 weighted imaging showing the leptomeningeal enhancement present in Sturge-Weber disease. http://www.mrc.wayne.edu/swi.htm
. Our aim was to determine whether age, sex, the degree of weakness, anticonvulsants, the histology of the underlying lesion(s), the presence of oedema or the distance of the lesion from the motor region have an impact on the blood oxygenation level-dependent (BOLD) signal strength and therefore on the validity of functional MRI (fMRI). We studied 98 patients with masses near the central region imaged for surgical planning at 1.5 tesla, employing a BOLD sequence during a motor task.

Neuroradiology, Volume 44, Number 6 - SpringerLink

http://www.springerlink.com/content/jv6pfkch7kcua9tb/
Macroscopic magnetic field inhomogeneities severely limit sensitivity of blood oxygenation level-dependent (BOLD) functional MRI (fMRI) in frontal and central brain regions close to brain stem. http://www.sciencedirect.com/science/article/pii/S1053811902000162

NeuroImage - Single-shot T2* mapping with 3D compensation of local susceptibility gradients in multiple regions

Anatomic localization and quantitative analysis o... [Neuroimage. 1997] - PubMed - NCBI

Functional magnetic resonance imaging (fMRI) techniques, such as echo-planar imaging, can permit rapid, sensitive, whole-brain measurements of local blood flow-induced MR signal changes seen during cognitive paradigms. Changes in blood oxygenation due to mismatch of flow and oxygen metabolism cause dynamic variations in microscopic susceptibility effects, leading to the blood oxygenation level-dependent (BOLD) signal measured by fMRI techniques. A related static macroscopic susceptibility effect is known to cause artifacts that attenuate the MR signal, leading to "blind spots" in some regions of brain adjacent to bone and air sinuses.

Physiological basis for BOLD MR signal change... [Magn Reson Med. 1998] - PubMed - NCBI

An NMR method is applied for separating blood volume and magnetic susceptibility effects in response to neuronal stimulation in a rat model.

Compensation of susceptibility-induced BOLD sensi... [Neuroimage. 2002] - PubMed - NCBI

Gradient-echo echo-planar imaging is a standard technique in functional magnetic resonance imaging (fMRI) experiments based on the blood oxygenation level-dependent (BOLD) effect. A major problem is the occurrence of susceptibility gradients near air/tissue interfaces. As a consequence, the detection of neuronal activation may be greatly compromised in certain brain areas, especially in the temporal lobes and in the orbitofrontal cortex.

Echo time dependence of BOLD contrast and suscept... [Neuroimage. 2002] - PubMed - NCBI

Echo-planar imaging with gradient echo allows whole-brain images to be rapidly acquired. However, its main limitation is that magnetic field inhomogeneities in regions of the brain close to bone and air-filled sinuses result in reduced signal-to-noise ratio and signal loss. In particular this is a problem for imaging the temporal lobes, and can therefore affect the results of some language-related studies.

Single-shot T(2)* mapping with 3D compensation of... [Neuroimage. 2003] - PubMed - NCBI

Department of Psychiatry and Behavioral Neuroscience, Wayne State University, 4201 St.