Quantitative Magnetic Resonance Imaging
Improving Accuracy of Information Extraction from Quantitative Magnetic Resonance Imaging
... DWI provides useful quantitative information on tissue microstructure but has inherently low SNR because of the diffusion weighting gradients (see section 2.3.1). Due to the non- normal distribution of magnitude ...
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Quantitative magnetic resonance imaging and neuropathology of the hippocampus in temporal lobe epilepsy
... a quantitative MRI technique using T2 relaxation time mapping to investigate systematically the amygdalae in patients with intractable ...normal quantitative hippocampal measures, 15 o f whom had an ...
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An overview of quantitative magnetic resonance imaging analysis studies in the assessment of alzheimer’s disease
... In this paper, the techniques compared can be grouped into three categories. In the first category volume analysis techniques are being used, and mainly on the hippocam- pus. The second category, is based on VBM analysis ...
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Quantitative magnetic resonance imaging phantoms: A review and the need for a system phantom
... validate q-ball imaging (86). Fieremans et al. used high molecular-weight polyethylene fibers, packed together tightly in heat-shrink tubing, to compare the experimen- tal diffusion-weighted MRI and NMR results ...
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The use of quantitative magnetic resonance imaging in perinatal brain injury
... the resonance frequency of *H nuclei was dependent upon m olecular environm ...applied magnetic field by differing am ...local magnetic field that is different from the applied static ...
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Comparative Prognostic Utilities of Early Quantitative Magnetic Resonance Imaging Spin-Spin Relaxometry and Proton Magnetic Resonance Spectroscopy in Neonatal Encephalopathy
... CONCLUSIONS. Deep gray matter spin-spin relaxation time was increased in the first few days after birth in infants with an adverse outcome. Proton magnetic resonance spectroscopy was more prognostic than ...
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Multi organ assessment of compensated cirrhosis patients using quantitative magnetic resonance imaging
... of Magnetic Resonance Imaging to assess changes in compensated cirrhosis (CC), and relate this to disease severity and future liver related outcomes ...
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Propofol allows precise quantitative arterial spin labelling functional magnetic resonance imaging in the rat
... more quantitative assessment of cerebral ...functional imaging of the rat somatosensory cortex forelimb region (S1FL) during electrical stimulation of the forepaw under alpha chloralose anaesthesia ...
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Quantitative and qualitative assessment of structural magnetic resonance imaging data in a two-center study
... for within-center cortical thickness comparisons. Within- center comparisons of a selection of subcortical structure volumes also indicated differences in the performance of the protocols, with protocol C3 showing higher ...
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Quantitative cardiovascular magnetic resonance for molecular imaging
... cardiac magnetic resonance (CE-CMR) was used to characterize inflammation in the coronary vessel wall of patients after acute myocardial infarction (AMI) ...
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Cardiac dysfunction in the diabetic rat: quantitative evaluation using high resolution magnetic resonance imaging
... At the end of 8 weeks of diabetes, MRI scans were per- formed on rats using a 9.4 T horizontal bore scanner (Var- ian Inc., Palo Alto, CA) and a 60 mm radio frequency volume coil while the rats were under 1.5% isoflurane ...
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Advanced Magnetic Resonance Imaging and Quantitative Analysis Approaches in Patients with Refractory Focal Epilepsy
... an imaging perspective, the aforementioned sequences have an acquisition time of approximately four to ten minutes, whereas another “fast” MR imaging technique, called Echo Planar Imaging (EPI), is ...
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Quantitative aspects of diffusion-weighted magnetic resonance imaging in rectal cancer response to neoadjuvant therapy
... of magnetic resonance complete response, the residual tumor was absent in all sequences, and the ROI included the areas of fibrosis, which was char- acterized by the hypointense area on T2W and no residual ...
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Interrogating Tissue Perfusion And Oxygenation Using Dynamic Magnetic Resonance Imaging And Quantitative Susceptibility Mapping
... The temporal footprint of a single image in dynamic imaging may be defined as the temporal interval from which raw data is used for the reconstruction of that image (24). As TRACER updates the current frame with ...
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XXY (Klinefelter Syndrome): A Pediatric Quantitative Brain Magnetic Resonance Imaging Case-Control Study
... RESULTS. Total cerebral volume and all lobar volumes except parietal white matter were significantly smaller in the XXY group, whereas lateral-ventricle volume was larger. Consistent with the cognitive profile, the ...
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Quantitative Evaluation of Pulmonary Emphysema Using Magnetic Resonance Imaging and x-ray Computed Tomography
... multidimensional CT-derived tumor measurements in regular and irregular phantoms and in clinical CT of patients with lung tumors. Therefore the novelty of this work stems from the integrated evaluation of precision and ...
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Quantitative three dimensional cardiovascular magnetic resonance myocardial perfusion imaging in systole and diastole
... Finally, the model used for estimating MBF assumes a linear relation between signal and contrast agent con- centration i.e. ignoring saturation effects in the LV blood pool which can lead to underestimation of MBF [33]. ...
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Magnetic resonance imaging of the ligaments of the craniocervical region at 3Tesla magnetic resonance unit: Quantitative and qualitative assessment
... sufficient to delineate the ligaments from the surrounding tissues, like fat, muscle and cerebrospinal fluid [5] and to better identify their pathology [5,6]. PD sequence offers increased contrast resolution due to low ...
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Quantitative Mapping of Lung Ventilation Using Hyperpolarized Gas Magnetic Resonance Imaging
... lower magnetic field) are then ahead, whereas phases that were ahead of the mean phase (those in a local environment of higher magnetic field) are then ...higher magnetic field will have exactly ...
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Quantitative functional magnetic resonance imaging in cerebral small vessel disease
... Stroke is an important cause of damage to the brain leading to death or disability. Around one quarter of strokes are due to „small vessel disease‟. This type of stroke has been studied less and we know little about what ...
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