blood oxygen level dependent MRI
Breath Hold Blood Oxygen Level–Dependent MRI: A Tool for the Assessment of Cerebrovascular Reserve in Children with Moyamoya Disease
... disease. Blood oxygen level– dependent MR imaging assessment of cerebrovascular reactivity, using voluntary breath-hold hypercapnic challenge, is one such simple ...
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4D Image Analysis And Diagnosis Of Kidney Disease Using Dce-Mri Images
... gray level co-occurrence ...in MRI of the ...for MRI interpretation of Blood Oxygen Level Dependent (BOLD) measurement, also the challenges with respiratory and bulk ...
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Multiparametric functional magnetic resonance imaging for evaluation of hepatic warm ischemia-reperfusion injury in a rabbit model
... (IVIM) MRI and diffusion tensor im- aging (DTI) are advanced techniques based on diffusion- weighted imaging ...22]. Blood oxygen level – dependent (BOLD) MRI is a MRI ...
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Resting State Functional MRI: Everything That Nonexperts Have Always Wanted to Know
... ABBREVIATIONS: ALFF ⫽ Amplitude of Low Frequency Fluctuations; BOLD ⫽ blood oxygen level– dependent; FCD ⫽ functional connectivity density; ICA ⫽ independent component analysis; ReHo ⫽ r[r] ...
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Altered blood oxygen level-dependent signal variability in chronic post-traumatic stress disorder during symptom provocation
... The exclusion criteria included a history of head injury or loss of consciousness, significant medical and neurological conditions, other lifetime or current psychiatric disorders, alcohol or drug abuse or dependence, or ...
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Regional dynamic signal changes during controlled hyperventilation assessed with blood oxygen level dependent functional MR imaging
... cerebral oxygen con- sumption in healthy persons ...with oxygen 15 by several research groups (7, ...in blood oxygen level– dependent (BOLD) contrast functional MR im- ...
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Reduction of Motion Artifacts and Noise Using Independent Component Analysis in Task Based Functional MRI for Preoperative Planning in Patients with Brain Tumor
... Blood oxygen level– dependent BOLD functional MR imaging relies on the detection of subtle signal changes related to the relationship of oxy- and deoxyhemoglobin as a surrogate marker of[r] ...
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Diffusion weighted imaging and blood oxygen level dependent MR imaging of kidneys in patients with lupus nephritis
... and blood oxy- gen level-dependent MR imaging are novel functional MRI techniques with repeatable nature that have potential to assess glomerular filtration, parenchymal oxygenation and renal ...
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Blood oxygenation level-dependent MRI for assessment of renal oxygenation
... of oxygen partial pressure (pO 2 ) by oxygen-sensing electrodes penetrating the renal parenchyma remains the gold standard for assessing renal tissue ...venous blood oxygen levels. However, in ...
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Modulation of renal oxygenation and perfusion in rat kidney monitored by quantitative diffusion and blood oxygen level dependent magnetic resonance imaging on a clinical 1.5T platform.
... In this study, we developed and applied a multi- parametric MRI strategy to evaluate the combination of DW and BOLD MRI for the assessment of rat renal function in vivo on a 1.5T clinical platform. IVIM DWI ...
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Application of mean-shift clustering to Blood oxygen level dependent functional MRI activation detection
... Using the proposed CCA + MSC technique, true positive rates were plotted to examine the behavior of the tech- nique at various kernel sizes. The statistical threshold was applied at Z = 3. The kernel sizes used were in ...
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Intrinsic Inter-Subject Variability in Functional Neuroimaging: Verification Using Blind Source Separation Features
... Prior to initiating this study, ethical approval was obtained from the Human Research Protections Office at the University of New Mexico (UNM), and the study was conducted in accordance with the principles expressed in ...
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Advanced magnetic resonance imaging techniques in brain tumours surgical planning
... barium. MRI, on the other hand, uses non- ionizing Radio Frequency (RF) signals to acquire its im- ages and is best suited for soft tissue ...other), MRI provides comparable resolution with far better ...
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Measuring prefrontal cortex response to virtual reality exposure therapy in freely moving participants
... cravings (Moon & Lee, 2009), or twelve or more sessions for treatment of PTSD (Roy & Francis, 2010). The current study detected changes in brain activity during the third session due to a few potential factors. ...
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Neurophysiology of the BOLD fMRI Signal in Awake Monkeys
... To examine the contribution of the MUA and LFP signals to the BOLD response, we also applied time-dependent fre- quency analysis to the raw data. The magnitude of the time- dependent Fourier transform ...
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Abnormal Blood Oxygen Level–Dependent Fluctuations in Focal Cortical Dysplasia and the Perilesional Zone: Initial Findings
... Using resting-state functional MR imaging, we assessed the time signature of spontaneous blood oxygen level– dependent (BOLD) fluctuations in patients with FCD. We evaluated 3 known BOLD ...
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Identifying Significant Changes in Cerebrovascular Reactivity to Carbon Dioxide
... of blood flow resulting from the establishment of spontaneously developing and surgically established collateral blood ...stable level at the final follow-up ...
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The Effect of Prior Surgery on Blood Oxygen Level–Dependent Functional MR Imaging in the Preoperative Assessment of Brain Tumors
... A number of other possible explanations exist for the results. First, it has been shown that there is a decrease in the volume of fMRI activation adjacent to GBMs (4, 18, 19). It has been suggested that this may be due ...
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What light have resting state fMRI studies shed on cognition and mood in Parkinson’s disease?
... Two studies applied graph theory to RS fMRI data to examine brain networks associated with PD cognitive impairment. Baggio et al. examined network-level changes associated with mild CI in PD while patients were ON ...
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Spatial–temporal signature of resting-state BOLD signals in classic trigeminal neuralgia
... The exclusion criteria for both groups were: 1) related neurologic conditions or chronic pains other than CTN (for the patients with CTN); 2) current chronic pains, or family history of neuralgia (for the healthy ...
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