functional MR imaging
Functional MR Imaging in Alzheimer's Disease during Memory Encoding
... after functional MR imaging, while still in the imager, participants were tested for recognition: they saw all 40 novel line drawings with one of the two objects in each drawing left ...
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Reproducibility of Visual Activation in Functional MR Imaging and Effects of Postprocessing
... Usually, statistical thresholding at a particular value is performed to identify regions of activation in functional MR imaging experiments. However, there is a trade-off between sensitivity and ...
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Assessment of Functional MR Imaging in Neurosurgical Planning
... the functional sensorimotor ho- munculus (5, ...‘‘Is functional MR imaging neces- sary when the anatomic features marking the motor strip/central sulcus are clearly visible?’’ The an- swer is ...
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Reproducibility of Functional MR Imaging Results Using Two Different MR Systems
... applying functional MR imaging in a clinical setting has grown, in partic- ular in neuro-oncology where functional MR imaging could be used as a helpful tool for presurgical ...
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The Effect of Age on Odor Stimulated Functional MR Imaging
... other functional MR imaging experiments in an attempt to optimize visualization of the inferomedial temporal and orbitofrontal ...6-minute functional MR ...
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Functional MR Imaging of the Human Cervical Spinal Cord
... all subjects, the distribution of detected activity varied with the task (Fig 2) but remained, for the most part, consistent across subjects (Fig 3). More- over, the observed location of activity for each task primarily ...
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Linear Dynamic Sparse Modelling for functional MR imaging
... Functional MR imaging (fMRI) technique has been widely used for measuring brain ...brain MR images in order to localise brain activity which relies on neuron activity across the brain or in a ...
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Central Processing of Rectal Pain: A Functional MR Imaging Study
... of functional MR imaging mapping of rectal pain and assessing the activation patterns in healthy subjects constitutes our first step toward identifying possible aberra- tions in the activation ...
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Functional Connectivity in the Thalamus and Hippocampus Studied with Functional MR Imaging
... MR images were acquired using a 1.5-T commercial imager equipped with high-speed gradients. Preliminary anatomic im- ages were obtained with multislice spin-echo sequences. For functional connectivity ...
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Quantification and Reproducibility of Tracking Cortical Extent of Activation by Use of Functional MR Imaging and Magnetoencephalography
... Functional MR imaging was performed using a GE Signa ...echo-planar imaging was performed with the following parameters: 2000/69 (TR/TE); flip angle, 60 8 ; matrix, 256 3 128; field of view, ...
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Functional MR Imaging on an Open 1T MR Imaging System: Exploiting the Advantages of an Open MR Imaging System for Functional MR Imaging
... All subjects underwent 2 scanning sessions on an open 1T whole- body scanner (Panorama; Philips Best, the Netherlands) and 1 scan- ning session on a 3T whole-body scanner (Intera; Philips Healthcare) on different days. ...
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Hemodynamic Response Changes in Cerebrovascular Disease: Implications for Functional MR Imaging
... ther dilatation is possible. At this stage, termed “mis- ery perfusion,” the tissue extracts an increased amount of oxygen from the blood to meet its meta- bolic needs (36). In cerebrovascular disease, there may not be ...
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Precision of Cerebrovascular Reactivity Assessment with Use of Different Quantification Methods for Hypercapnia Functional MR Imaging
... (BOLD) MR imaging contrast in response to hypercapnia, but the reliability of its quantification is ...hypercapnia functional MR imaging (fMRI) in healthy volunteers and to assess the ...
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Intrasubject Reproducibility of Functional MR Imaging Activation in Language Tasks
... Variables estimating the head motion and the temporal signal intensity–to-noise ratio (SNR) were calculated for each single dataset. These variables were used to estimate the quality of the images for each subject and ...
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Functional Homotopic Changes in Multiple Sclerosis with Resting State Functional MR Imaging
... and functional connectivity along the pathways con- necting either Broca area and supplementary area or Broca area and Wernicke ...visual functional deficit previously or recently occurring in these ...
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The Role of Functional MR Imaging in Patients with Ischemia in the Visual Cortex
... sion, MR imaging is usually performed, and ap- parent lesions such as infarction, hemorrhage, or tumor can then be ...es, MR imaging may show no abnormal ...fMR imaging might be ...
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Lateralization of Cortical Function in Swallowing: A Functional MR Imaging Study
... important functional feature in swallowing, as the internal capsule serves to func- tionally connect cortical and brain stem nuclei via the cortical bulbar ...
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Success Rates for Functional MR Imaging in Children
... the MR imaging scanner, continual communication, feedback, and reas- surance of children, have been found to be important to our suc- cess ...the imaging session, they have helped us achieve a better ...
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The Cerebellum's Role in Reading: A Functional MR Imaging Study
... deficient in dyslexic readers (28 2 32), seems to be associated with an increased cerebellar role when compared with the word-rhyme condition with which the use of highly familiar stimuli lessens de- mands on this ...
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Functional MR Imaging Evidence of Altered Functional Activation in Metabolic Syndrome
... Working Memory Paradigm. Working memory was assessed by using a verbal 2-back task. During this task, a series of individual consonants was presented visually for 500 ms each with a 2500-ms interstimulus interval. ...
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