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Clinical Trials About "Functional magnetic resonance imaging Blood Oxygenation Level Dependent" RSS

05:19 EST 20th January 2020 | BioPortfolio

We list hundreds of Clinical Trials about "Functional magnetic resonance imaging Blood Oxygenation Level Dependent" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.

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Showing "Functional magnetic resonance imaging Blood Oxygenation Level Dependent" Clinical Trials 1–25 of 38,000+

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Functional Evaluation of the Fetal Lung by Functional Magnetic Resonance Imaging - Blood Oxygenation Level Dependent (MRI-BOLD), in Congenital Diaphragmatic and Parietal Malformations

The objective is to evaluate the quality of the response to the Blood Oxygen Level Dependent effect in fetuses with diaphragmatic hernias and abdominal wall malformations and to correlate with postnatal respiratory outcome. Pulmonary involvement is a constant in diaphragmatic hernias, it is classic in omphaloceles and especially hepatomphaloceles, and exceptional in laparoschisis. As this is an original exploratory study, no preliminary data are available. If a correlati...


MRI in Assessing Hypoxia in Patients With Localized Prostate Cancer Undergoing Stereotactic Body Radiation Therapy

RATIONALE: Diagnostic procedures, such as MRI, may help measure oxygen levels in tumor cells. It may also help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This clinical trial is studying how well MRI works in assessing hypoxia in patients with localized prostate cancer undergoing stereotactic body radiation therapy.

Assess the Blood-Oxygen-Level-Dependent (BOLD) Signal Changes in the Brain by Paracetamol as Measured by Functional Magnetic Resonance Imaging (fMRI) in Subjects With Osteoarthritis (OA)

Blood-Oxygen-Level-Dependent (BOLD) functional Magnetic Resonance Imaging (fMRI) responses to painful mechanical stimulation of the OA knee following treatment with four consecutive doses (at 8 hour intervals) of a sustained released paracetamol treatment or placebo. The fMRI and pain assessments will occur approximately 2-5 hours after taking the final dose.


Evaluation of Kidney Function by Multi-modal Magnetic Resonance Imaging and Spectroscopy

Multimodal functional magnetic resonance (MR) methods, including MR diffusion, Blood-Oxygenation Level Dependent (BOLD) imaging and MR spectroscopy may provide complementary information about the functional status of a kidney. The researchers hypothesize that these non-invasive methods correlate with histology as "gold standard" and compete favorably with conventional in part invasive evaluation methods, and thus provide specific and early detection of kidney diseases of variou...

Functional MRI in Finding Hypoxia in Patients Undergoing Chemotherapy and Radiation Therapy for Stage III or Stage IV Head and Neck Cancer

RATIONALE: Diagnostic procedures, such as functional MRI, may help measure oxygen levels in tumor cells and may help in planning cancer treatment. PURPOSE: This phase I trial is studying functional MRI to see how well it works in finding hypoxia in patients undergoing chemotherapy and radiation therapy for stage III or stage IV head and neck cancer.

Study Where Pharmaco Magnetic Resonance Imaging (MRI) Effects of AZD6765 Will be Compared to Placebo in Depressive Male and Female Subjects

The purpose of this study is to determine the effect of a single dose infusion of AZD 6765 compared with placebo and ketamine on the blood oxygen level dependent signal using fMRI (functional Magnetic Resonance Imaging) in depressed subjects.

Molecular-Functional Imaging of Hypoxia in Childhood Sarcomas

This study will test the feasibility of using novel/existing imaging technologies focused on hypoxia measurements to determine "response to therapy" in pediatric soft tissue sarcomas as a pilot study. Specifically, the investigators will compare the sensitivity of Blood Oxygen Level Dependent [BOLD], Diffusion-Weighted [DW] MRI, Magnetic Resonance Spectroscopy (MRS) and 18F-FAZA PET-MRI with that of conventional MRI to detect measurement changes between the start and completion...

3 Tesla MRI in Patients With Bladder Cancer

RATIONALE: New diagnostic procedures, such as 3 Tesla magnetic resonance imaging (MRI), may help find bladder cancer and learn the extent of disease. PURPOSE: This clinical trial is studying how well 3 Tesla MRI works in finding cancer in patients with bladder cancer.

Functional MRI in Lupus Nephritis

The primary objectives of the study are as follows: To develop and optimize a renal functional magnetic resonance imaging (MRI) protocol consisting of Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI), Blood-Oxygen- Level-Dependent MRI (BOLD-MRI), Arterial Spin Labeling MRI (ASL-MRI), Phase Contrast MRI (PC-MRI), and T1rho-MRI; To compare renal functional MRI cross-sectional readouts between normal healthy volunteers (NHV) and lupus nephritis (LN) participants. Th...

Magnetic Resonance Imaging in Evaluating Response to RadiationTherapy in Patients With High Grade Glioma

RATIONALE: Diagnostic procedures, such as magnetic resonance imaging, may help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This clinical trial is studying magnetic resonance imaging in response to radiation therapy in patients with high grade glioma.

Functional Magnetic Resonance Imaging of Brain Activity in Patients With Painful Diabetic Neuropathy

Patients with painful diabetic neuropathy (PDN) often combine with anxiety and depression. However, the pathogenesis of PDN is unclear, especially the mechanism associated with central nervous system. The investigators used fraction Amplitude of Low Frequency Fluctuation (fALFF) and Regional Homogeneity (ReHo) of resting-state functional Magnetic Resonance Imaging (rs-fMRI) to explore the brain activity in patients with PDN in order to study the central mechanism.The investigat...

Magnetic Resonance Imaging and Magnetic Resonance Spectroscopic Imaging in Evaluating Patients Who Are Undergoing Treatment for Gliomas

RATIONALE: Diagnostic procedures, such as magnetic resonance imaging (MRI) and magnetic resonance spectroscopic imaging (MRSI), (done before, during, and after treatment) may help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This phase II trial is studying how well MRI and MRSI evaluate patients who are undergoing treatment for gliomas.

Olfactory Contributions to Sleep-dependent Food Craving

This within-subject crossover experiment uses one night of acute sleep restriction (4h) vs normal sleep (8h) to study state-dependent changes in olfactory processing. Odor-evoked blood oxygen level dependent (BOLD) responses will be measured in olfactory brain regions using functional magnetic resonance imaging (fMRI). Food intake will be measured at a buffet.

Resting-State Functional MRI in Glioma Patients Before and After Surgery

This clinical trial studies how well resting-state functional magnetic resonance imaging (MRI) and cerebrovascular reactivity (CVR) MRI performed before and after surgery works in measuring the effects on language in patients with glioma. Mapping language function before brain tumor resection is crucial for preventing post-surgical deficits and maximizing restoration of language function following surgery. Additional imaging, such as resting-state functional MRI and CVR MRI, ma...

Assessing Treatment Response in Breast Cancer With Functional Imaging

Patients with large primary operable breast cancers are offered chemotherapy prior to surgery to shrink the tumour and enable breast conserving surgery. Conventional assessment of response to chemotherapy relies on a change in tumour size which does not always correlate with the change in amount of viable tumour. Newer techniques such as functional MRI, microbubble and optoacoustic ultrasound offer the potential to detect responses to chemotherapy by evaluating functional chang...

Intracoronary Thrombus Detection by Magnetic Resonance Imaging

This study involves the use of Magnetic Resonance Imaging (MRI) to determine whether blood clots can be identified within the blood vessels supplying blood to the heart in patients with angina and who have recently suffered a heart attack.

Quantifying Abnormalities in Cortical Activation Associated With Auditory Hallucinations Using Functional Magnetic Resonance Imaging

The goal of the project is to characterize abnormalities in brain structure and function related to schizophrenia. The investigators will use advanced magnetic resonance imaging (MRI) techniques to measure the degree and distribution of neuronal activity during specific cognitive tasks, alterations in neuronal connectivity, and how these are related to disease symptoms and treatment.

Perfusion Magnetic Resonance Imaging in Diagnosing Patients With Kidney Tumors

This pilot clinical trial studies perfusion magnetic resonance imaging in diagnosing patients with kidney tumors. Diagnostic procedures, such as perfusion magnetic resonance imaging, may help find and diagnose kidney tumors and predict and monitor a patient's response to treatment.

Impact of Varenicline on Blood-Oxygen-Level Dependent (BOLD) Functional Magnetic Resonance Imaging (fMRI) Activation on Smokers

The purpose of this study is to evaluate the impact of varenicline treatment on cue induced craving to smoking using brain imaging. The investigators hypothesize that participants will report reduced urges to smoke and will have less activation in parts of the brain associated with craving.

Magnetic Resonance Imaging (MRI) of Normal Volunteers

Magnetic resonance is an imaging technique that uses magnetic fields and radio waves to create images of the body. The technology used in magnetic resonance imaging continues to improve. Advancements in magnetic resonance imaging (MRI) requires researchers to study new techniques in normal volunteers in order to understand how to use them in patients with diseases. In this study researchers plan to do a variety of diagnostic tests including magnetic resonance imaging o...

Non-invasive Prediction of Microvascular Invasion in Hepatocellular Carcinoma by Blood-Oxygen-Level Dependent Magnetic Resonance Imaging (BOLD MRI)

Liver resection and liver transplantation are the acceptable treatment of Hepatocellular Carcinoma (HCC). But the long-term survival is unsatisfactory as a result of high rate of intra and extra hepatic recurrences. Microvascular invasion (MVI) is the most significant risk factor affecting recurrence-free survival in patients following liver resection and liver transplantation. Tumor hypoxia (lack of adequate blood supply) is the single most important factor that predict MVI an...

BOLD Functional Magnetic Resonance Imaging (fMRI) and Cerebral Blood Flow Measurements as Biomarkers for Cognition Enhancing Drugs (3134-006)

This study will evaluate functional magnetic resonance imaging (fMRI) and methods for measuring drug induced changes in cerebral blood flow as biomarkers for attention-improving drugs.

Cue Induced Imaging in Nicotine Dependent Smokers

The purpose of this study is to evaluate the relationship between craving to smoke and areas activated in brain. The researchers are using functional magnetic resonance imaging (MRI) that measures brain blood flow, or perfusion, to study this brain activation.

Magnetic Resonance Imaging and Magnetic Resonance Spectroscopic Imaging in Diagnosing the Extent of Disease in Patients With Prostate Cancer

RATIONALE: Imaging procedures such as magnetic resonance imaging (MRI) and magnetic resonance spectroscopic imaging (MRSI) may improve the ability to detect the extent of prostate cancer. It is not yet known if MRI combined with MRSI is more effective than MRI alone in detecting the extent of prostate cancer. PURPOSE: Diagnostic trial to compare the effectiveness of combining MRI with MRSI to that of MRI alone in determining the extent of prostate cancer in patients who are sc...

Brain Mechanisms of Juvenile Fibromyalgia

This study evaluates whether differences exist between adolescent females with juvenile-onset fibromyalgia and healthy controls in processing of pain and emotion at the neural level as assessed by functional magnetic resonance imaging (fMRI). The study includes a longitudinal component to evaluate changes in neural processing of pain and emotion before and after different treatment strategies.


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