نتایج جستجو برای: functional magnetic resonance imaging fmri

تعداد نتایج: 1280435  

Journal: :middle east journal of cancer 0
sedigheh tahmasebi general surgery department, shiraz university of medical sciences, shiraz, iran mohammad hasan hashemizadeh general surgery department, shiraz university of medical sciences, shiraz, iran abdolrasoul talei general surgery department, shiraz university of medical sciences, shiraz, iran sepideh sefidbakht department of radiology, shiraz university of medical sciences, shiraz, iran maral mokhtari department of pathology, shiraz university of medical sciences, shiraz, iran abdolkhalegh keshavarzi general surgery department, shiraz university of medical sciences, shiraz, iran

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...

2008
Krishna Prasad Miyapuram

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...

Journal: :archives of cardiovascular imaging 0
sim sai tin shantou medical center, shantou, china; shantou medical center, shantou, china. viroj wiwanitkit visiting professor, hainan medical university, haikou, china

2011
Reisa Sperling

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...

Journal: :basic and clinical neuroscience 0
ahmad sohrabi department of psychology, faculty of humanities and social sciences, university of kurdistan, sanandaj, iran. andra m. smith department of psychology, carleton university, ottawa robert l. west department of psychology, university of ottawa, ottawa ian cameron general hospital, university of ottawa, ottawa

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...

Journal: :OBM neurobiology 2022

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 ...

Journal: :Applied sciences 2022

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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