نتایج جستجو برای: functional magnetic resonance imaging

تعداد نتایج: 1267317  

Journal: :iranian journal of pediatric hematology and oncology 0
shokoh taghipour zahir department of clinical and surgical pathology, shahid sadoughi university of medical sciences, yazd, iran mohammad rezaei sadrabadi medical student, shahid sadoughi university of medical sciences, yazd, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید صدوقی یزد (shahid sadooghi university of medical sciences) f dehghani department of dermatology, shahid sadoughi university of medical sciences, yazd, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید صدوقی یزد (shahid sadooghi university of medical sciences)

abstract background cerebral neoplasm arises from brain, spinal cord and meningeal cells. not only malignant cerebral neoplasm also benign tumor could lead to death due to mass effect on vital structures. access to these tumors is difficult, and mri and ct scan could be helpful in determining anatomical location of tumors and distinction of malignant from benign. objective for better and earlie...

Journal: :iranian journal of radiology 0
jinyoung chang department of radiology, hallym university sacred heart hospital, anyang, south korea sun-young park department of radiology, hallym university sacred heart hospital, anyang, south korea; department of radiology, hallym university sacred heart hospital, anyang, south korea. tel: +82-313803756 soo kee min department of pathology, hallym university sacred heart hospital, anyang, south korea sung hye koh department of radiology, hallym university sacred heart hospital, anyang, south korea kwan seop lee department of radiology, hallym university sacred heart hospital, anyang, south korea

inflammatory myofibroblastic tumor (imt) in the spine or paraspinal area is extremely rare. here, we report a rare case of a 56-year-old man who had pathological-proven spinal epidural imt showing a malignancy-like infiltrative feature on mr imaging with alteration of t2 signal intensity on follow-up from slightly high to low compared with initial mr imaging. to the best of our knowledge, this ...

Introduction As functional magnetic resonance imaging (fMRI) is too expensive and time consuming, its frequent implementation is difficult. The aim of this study is to evaluate repeatability of detecting visual cortex activity in fMRI. Materials and Methods In this study, 15 normal volunteers (10 female, 5 male; Mean age±SD: 24.7±3.8 years) attended. Functional magnetic resonance images were ob...

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...

Journal: :basic and clinical neuroscience 0
mehdi behroozi mohammad reza daliri huseyin boyaci

functional magnetic resonance imaging (fmri) is a safe and non-invasive way to assess brain functions by using signal changes associated with brain activity. the technique has become a ubiquitous tool in basic, clinical and cognitive neuroscience. this method can measure little metabolism changes that occur in active part of the brain. we process the fmri data to be able to find the parts of br...

A Lavasani A Mahdavi A Mojebi A Rezvanizadeh H Saberi MA Oghabian N Riahi

Pre-operative determination of the dominant hemisphere for speech and speech associated sensory and motor regions has been of great interest for the neurological surgeons. This dilemma has been of at most importance, but difficult to achieve, requiring either invasive (Wada test) or non-invasive methods (Brain Mapping). In the present study we have employed functional Magnetic Resonance Imaging...

Atefeh Hadian Masoud Shayesteh Azar, Mohammad Ali Mohseni-Bandpei Seyed Ahmad Shahab Kowsarian

Kienbock's disease, which is an idiopathic osteonecrosis and collapse of the lunate bone, is an uncommon disease in children. This report describes a case of an 11-year-old girl, who presented with avascular necrosis of lunate bone confirmed by radiographic and magnetic resonance imaging evidence. After a short period of casting, the case was fully recovered within one year. The signal change w...

Huseyin Boyaci, Mehdi Behroozi, Mohammad Reza Daliri,

Functional magnetic resonance imaging (fMRI) is a safe and non-invasive way to assess brain functions by using signal changes associated with brain activity. The technique has become a ubiquitous tool in basic, clinical and cognitive neuroscience. This method can measure little metabolism changes that occur in active part of the brain. We process the fMRI data to be able to find the parts of br...

A Lavasani A Mahdavi A Mojebi A Rezvanizadeh H Saberi MA Oghabian N Riahi

Pre-operative determination of the dominant hemisphere for speech and speech associated sensory and motor regions has been of great interest for the neurological surgeons. This dilemma has been of at most importance, but difficult to achieve, requiring either invasive (Wada test) or non-invasive methods (Brain Mapping). In the present study we have employed functional Magnetic Resonance Imaging...

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