نتایج جستجو برای: other imaging
تعداد نتایج: 2156575 فیلتر نتایج به سال:
Magnetic induction tomography (MIT) is a promising modality for noninvasive imaging due to its contactless technology. Being a non-contact safe imaging technique, MIT has been an appropriate method in compare to other electrical tomography. In this imaging method, a primary magnetic field is applied by excitation coils to induce eddy currents in the material to be studied and a secondary magnet...
conclusions cmr with stir sequences, free breathing sequences and late gadolinium imaging can prove extremely useful for diagnosing constrictive pericarditis. case presentation a 77-year-old man from a country with high incidence of tuberculosis presented with severe dyspnea. echocardiography revealed a small left ventricle with normal systolic and mildly impaired diastolic function. left heart...
results stereoscopic displays of the nerves were obtained in all 24 elbows by vr, mip, and fiber tractography post-processing methods. the vr/mip post-processing methods were easier to perform compared to fiber tractography. there was no significant difference among the scores of fiber tracking and vr/mip reconstruction for single direction. the imaging quality scores of fiber tractography and ...
rhabdomyosarcoma is a common primary childhood malignancy that rarely metastasizes to the breast. we report a patient with a primary sinonasal rhabdomyosarcoma metastasizing to the breast, with no distant spread. we describe the imaging appearance of rhabdomyosarcoma on magnetic resonance imaging (mri), particularly on diffusion-weighted imaging (dwi) and apparent diffusion coefficient (adc) se...
microphthalmia is defined as a globe with a total axial length that is at least two standard deviations below the mean for age. it may be isolated or part of a syndrome with other associated anomalies. causes can be divided into environmental, heritable or unknown. some researchers believe that microphthalmia and anophthalmia belong to one family. unilateral and bilateral anophtalmia have been ...
carcinoid tumor is a slow-growing type of neuroendocrine tumor, originating in the enterochromaffin cells and secreting mainly serotonin. the diagnosis is based on clinical symptoms, hormone levels, radiological and nuclear imaging, and histological confirmation. the clinical symptoms are characterized by flushing, diarrhea, abdominal pain, telangiectasia and/or bronchoconstriction. however, mo...
introduction this study is an effort to diagnose breast cancer by processing the quantitative and qualitative information obtained from medical infrared imaging. the medical infrared imaging is free from any harmful radiation and it is one of the best advantages of the proposed method. by analyzing this information, the best diagnostic parameters among the available parameters are selected and ...
Background & Aims: Superior Mesenteric Artery Syndrome (SMAS) is a rare cause of upper intestinal obstruction manifested by retching or vomiting. Thanks to the difficulties arising in its diagnosis, it is usually done by elimination of other causes. We tried to report on the radiological manifestation of this rare syndrome aiming to find reliable predictable signs in imaging. Materials & ...
در بین انواع نانوذره ها، نانوذره های مغناطیسی (mnps) نظر به کاربرد های بسیاری که در حوزه های مختلفی همچون مایعات مغناطیس (magnetic fluids) کاتالیز (catalysis) ، تصویربرداری رزونانس مغناطیسmagnetic resonance imaging) ) و بازسازی محیط زیست (environmental remediation) دارند توجه پژوهشگران را به خود جلب نموده اند [1]. این نانوذره ها سوپرپارامغناطیس هایی اند که می توانند جذب میدان مغاطیسی شوند اما خ...
X-ray computed tomography is an imaging method which makes tomographic images with high contrast and resolution. However, CT-scans deliver much more radiation dose compared with other imaging techniques. The aim of this study was to evaluate two-dimensional dose distribution in a PMMA phantom as well as investigationof the effect ofcollimation factor on the dose distribution measuredusing GAF-C...
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