نتایج جستجو برای: functional magnetic resonance imaging fmri
تعداد نتایج: 1280435 فیلتر نتایج به سال:
background : magnetic resonance imaging of the breast is becoming a useful adjunct to mammography and sonography for the detection of breast lesions. however, it is not yet accepted as a routine examination for all breast cancer patients due to the lack of data regarding whether breast magnetic resonance imaging impacts recurrence or survival. this trial examines the use of magnetic resonance i...
Background and purpose: Insomnia is a common sleep disorder with negative consequences such as decreased quality of life. In this study, the effect of sleep deprivation on memory in both young and older adults was investigated using functional magnetic resonance imaging (fMRI). Materials and methods: In this retrospective study, fMRI data of 40 healthy subjects (17 young and 23 older people) w...
Functional Magnetic Resonance Imaging (functional MRI or fMRI) is a noninvasive neuroimaging technique that can be used for studying human brain function in vivo. Functional MRI extends the use of Magnetic Resonance Imaging to provide information about biological function in addition to the anatomical information. Seiji Ogawa first demonstrated that by measuring the blood-oxygenation-level-depe...
Functional magnetic resonance imaging (fMRI) is a relative newcomer in the field of biomarkers for Alzheimer’s disease (AD). fMRI has several potential advantages, particularly for clinical trials, as it is a noninvasive imaging technique that does not require the injection of contrast agent or radiation exposure and thus can be repeated many times during a longitudinal study. fMRI has relative...
introduction: the current study aimed to elucidate the role of preparatory cognitive control in decision making and its neural correlates using functional magnetic resonance imaging (fmri). to this effect, by employing a series of new cognitive tasks, we assessed the role of preparatory cognitive control in monetary (risky) decision making. methods: the participants had to decide between a risk...
Functional magnetic resonance imaging (fMRI) is widely used to detect changes in the resting-state brain networks of migraine patients. connectivity fMRI analysis examines functional organization based on temporal correlations blood oxygen level-dependent signal different regions. Most previous studies have assumed that between regions remains relatively stable over time. However, it now known ...
Functional Magnetic Resonance Imaging (fMRI) is an essential tool for the pre-surgical planning of brain tumor removal, which allows identification functional networks to preserve patient’s neurological functions. One fMRI technique used identify network resting-state-fMRI (rs-fMRI). This not routinely available because necessity have expert reviewer who can manually each network. The lack suff...
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