نتایج جستجو برای: acoustic magnetic resonance

تعداد نتایج: 481975  

Journal: :iranian journal of child neurology 0
s. inaloo md, assistant professor of pediatric neurology, shiraz university of medical science m.j. yavari medical student, fasa university of medical science, school of medicine s. saboori md ,medical student, bushehr university of medical sciences, school of medicine

objective multiple sclerosis (ms) is an inflammatory demyelinating disease of central nervous system (cns) that is increasingly being recognized as a disease affecting children. however, the clinical features of childhood ms at onset have been rarely reported from asia. materials & methods this report presents a retrospective chart review of 26 patients with ms (20 females and 6 males), with an...

Journal: :journal of medical signals and sensors 0
mostafa heydari mohammad reza karami

although there are many methods for image denoising, but partial differential equation (pde) based denoising attracted much attention in the field of medical image processing such as magnetic resonance imaging (mri). the main advantage of pde-based denoising approach is laid in its ability to smooth image in a nonlinear way, which effectively removes the noise, as well as preserving edge throug...

Journal: :journal of medical signals and sensors 0
seyed salman zakariaee mikaeil molazadeh abbas takavar alireza shirazi asghar mesbahi ahad zeinali

in radiation cancer treatments, the most of the side effects could be minimized using a proper dosimeter. gel dosimeter is the only three‑dimensional dosimeter and magnetic resonance imaging (mri) is the gold standard method for gel dosimeter readout. because of hard accessibility and high cost of sample reading by mri systems, some other alternative methods were developed. the optical computed...

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: :journal of sciences islamic republic of iran 0

study of the nuclear magnetic resonance spectra of glyoxaldihydrazone in dimethylsulfoxide and deuterochlorofonn leads to the conclusion that this compound exists predominantly in non-chelate structure

Journal: :Current opinion in otolaryngology & head and neck surgery 2009
David L Woods Claude Alain

PURPOSE OF REVIEW This review summarizes recent advances in functional magnetic resonance imaging that reveal similarities in the organization of human auditory cortex (HAC) and auditory cortex of nonhuman primates. RECENT FINDINGS Functional magnetic resonance imaging studies have shown that HAC is a compact region that covers less than 8% of the total cortical surface. HAC is subdivided int...

Journal: :Hypertension 2002
Saul G Myerson Hugh E Montgomery Michael J World Dudley J Pennell

The study of left ventricular (LV) hypertrophy is hindered by problems with LV mass measurement by echocardiography. Both the M-mode and 2D area-length formulas for calculating LV mass assume a fixed geometric shape, which may be a source of error. We examined this hypothesis by using cardiovascular magnetic resonance images to eliminate the confounding effects of acoustic access and image qual...

2014
Tomasz Gęca Arkadiusz Krzyżanowski Aleksandra Stupak Anna Kwaśniewska Tomasz Pikuła Radosław Pietura

INTRODUCTION Ultrasonography is used routinely during pregnancy to screen and detect fetal abnormalities. However, there are some conditions like anhydramnios (a prevalent state in renal agenesis) or maternal obesity that may limit the diagnostic accuracy of ultrasonography. Magnetic resonance imaging has proven to be useful when ultrasound alone is insufficient to make a correct diagnosis. C...

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