hydatid disease (hd) is a parasitic infection that is most commonly caused by the larval stage of echinococcus granulosus. unusual location for this disease can cause diagnostic and therapeutic problems. we herein report a case of sacrococcygeal hd at an unusual location in a 30-year-old woman. she was evaluated using computed tomography (ct) imaging and magnetic resonance imaging (mri) after t...

dissection of the internal carotid artery (ica) is a rare condition that accounts for a significant proportion of ischemic strokes in young adults. iatrogenic dissection as a complication of neurointerventional procedures is a traumatic dissection which has been reported relatively rare in the literature. in this report, a case of dissection of the ica is reported that was caused by repetitive ...

results the maximum si was obtained at the highest applied flip angle (45°). the linear relationship between si and nanoparticle concentration was seen up to 112.21 and 98.83 μmol fe/l for the short (10°) and the long (45°) flip angles, respectively (r2 = 0.95). these values were reduced up to 48.54 and 42.73 μmol fe/l for these flip angles with r2 of 0.99. conclusions the maximum si will be in...

abstract deep seated cavernous angioma (ca) is a very rare entity, those occurring in the hypothalamus are still less common. we present a case of a 52-year-old man who presented with behavior and memory disturbance attacks. he had a ca of the hypothalamus as revealed by magnetic resonance imaging (mri). we will discuss the role and importance of imaging in such scenario and also the differenti...

neurofibroma is an autosomal dominant disorder which has major criteria such as hyperpigmentation (cafe-au lait spots), cutaneous and subcutaneous tumors and bone deformities. in this report, a case of multifocal intraosseous neurofibroma in a 16-year-old male with right facial asymmetry, multiple unerupted maxillary posterior teeth and a previous history of infratemporal and orbital neurofibro...

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...

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...

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...

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...

High-frequency coils are widely used in medical applications, such as Magnetic Resonance Imaging (MRI) systems. A typical medical MRI includes a local radio frequency transmit/receive coil. This coil is designed for maximum energy transfer or wave transfer through magnetic resonance. Mutual inductance is a dynamic parameter that determines the energy quantity to be transferred wirelessly by ele...