نتایج جستجو برای: magnetic resonanceimaging mri

تعداد نتایج: 409578  

سید مهدی میرمحمد, , علیرضا رحیم‌نیا, , فرهاد فخر جهانی, , کاووس وزیری, , یدالله رضایی, ,

Background: The knee is the most commonly injured joint. The internal components of the knee include the meniscuses, the anterior cruciate ligament (ACL) and posterior cruciate ligaments (PCL). Magnetic resonance imaging (MRI) is now used widely because of its high accuracy and noninvasiveness. Our objective was to diagnose internal knee component injuries by MRI and compare its diagnostic valu...

Armin Allahverdy Ayuob Faramarzi Mahmood Amiri Meysam Siyah Mansoory

Introduction: The brain tumor is an abnormal growth of tissue in the brain, which is one of the most important challenges in neurology. Brain tumors have different types. Some brain tumors are benign and some brain tumors are cancerous and malignant. Glioblastoma Multiforme (GBM) is the most common and deadliest malignant brain tumor in adults. The average survival rate for peo...

Cobalt ferrite nanoparticles (CoFe2O4) are well known for some distinctive characteristics such as high magnetic permeability and coercive force, good saturation magnetization, excellent physical, and chemical stability, which make them so attractive for magnetic storage, magnetic resonance imaging (MRI), drug delivery, optical-magnetic equipment, radar absorbing materials...

ژورنال: سنجش و ایمنی پرتو 2020

Nowadays, in order to improve the accuracy of treatment in radiation therapy, there are many attempts to use magnetic resonance imaging (MRI) due to the advantages of excellent soft tissue contrast and ultra-fast pulse sequences. On the other hand, carbon-ion radiation therapy is developing rapidly due to the benefits of greater relative biological effectiveness (RBE) and the application in the...

Journal: :iranian journal of radiology 0
yun hee cho department of radiology, anam hospital, korea university college of medicine, seoul, korea kyung-sik ahn department of radiology, anam hospital, korea university college of medicine, seoul, korea; department of radiology, anam hospital, korea university college of medicine, 126-1, 5-ga anam-dong, seongbuk-gu, seoul 136-705, korea. tel: +82-29206627, fax: +82-29293796 chang ho kang department of radiology, anam hospital, korea university college of medicine, seoul, korea chul hwan kim department of pathology, anam hospital, korea university college of medicine, seoul, korea

calcifying aponeurotic fibroma (caf) is a rare, benign fibroblastic tumor that typically occurs in the palms of the hands and soles of the feet, in children and adolescents. due to its infiltrative nature, this tumor can mimic malignancy on preoperative magnetic resonance imaging (mri) and has a predilection for local recurrence. there are very few reports in the literature that describe featur...

A R Montazerabadi A Takavar M H Zahmatkesh M Keshtkar,

Background: Polymer gel dosimeters combined with magnetic resonance imaging (MRI) can be used for dose verification of advanced radiation therapy techniques. However, the uncertainty of dose map measured by gel dosimeter should be known. The purpose of this study is to investigate the uncertainty related to calibration curve and MRI protocol for MAGIC (Methacrylic and Ascorbic acid in Gelatin I...

Journal: :iranian journal of neurology 0
abbas tafakhori iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran. vajiheh aghamollaii iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran amir hossein modabbernia iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran majid ghaffarpour iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran hossein ali ghelichnia omrani iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran mohammad hossein harirchian iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran

background: we evaluated the diagnostic value of electroencephalography (eeg), video-eeg monitoring (vem) and magnetic resonance imaging (mri) of the brain with epilepsy protocol in patients with complex partial epilepsy. methods: forty-two consecutive patients underwent complete neurological examination, eeg, and mri with a modified epilepsy protocol. a subset of these patients (n = 29) also u...

A. Shiravi B. Ganji M. Shiravi,

One of the main challenges in developing magnetic resonance imaging (MRI) systems is to create a static coil that needs to generate magnetic field density along with the characteristics of optimal homogeneity and magnitude size. To do this, two N42 Block PMs are used and the iron core is designed and optimized in accordance with the dimensions of PM pieces using ANSYS Maxwell software. Then, al...

Background: Back pain is a common patients’ complaint, and its etiology is important because of different potential treatment approaches (based on causes). For a better diagnosis, magnetic resonance imaging (MRI) is widely used in clinical settings that may result in inappropriate requests. This study aims to evaluate the appropriateness of the lumbosacral MRI requests in patients with ba...

Journal: :iranian journal of radiology 0
ryan ka lok lee department of imaging and interventional radiology, prince of wales hospital, chinese university of hong kong, hong kong, china; department of imaging and interventional radiology, prince of wales hospital, chinese university of hong kong, hong kong, china. tel: +852-26321247 edmond yuen hok yuen department of imaging and interventional radiology, prince of wales hospital, chinese university of hong kong, hong kong, china victor james abdullah department of ear, nose and throat, united christian hospital, hong kong, china yolanda yim ping lee department of imaging and interventional radiology, prince of wales hospital, chinese university of hong kong, hong kong, china anil tejbhan ahuja department of imaging and interventional radiology, prince of wales hospital, chinese university of hong kong, hong kong, china

symptomatic laryngeal chondrometaplasia is rare. to the best of our knowledge, there are only few case reports on laryngeal chondrometaplasia. the imaging appearance of this uncommon disease is even more rarely described. there are only two case reports describing its appearances in computed tomography (ct) and magnetic resonance imaging (mri). ultrasound (us) features have not been reported so...

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