نتایج جستجو برای: computedtomography imaging

تعداد نتایج: 457139  

Journal: :iranian journal of radiology 0
jian hui gu jiangsu province key laboratory of neuroregeneration, nantong university, nantong, jiangsu, china xue jun zhou department of radiology, affiliated hospital of nantong university, nantong, jiangsu, china dong sheng jin department of radiology, jiangsu province official hospital, nanjing, jiangsu, china wen quan ding department of hand surgery, ningbo no.6 hospital, ningbo university, ningbo, zhejiang, china; department of hand surgery, ningbo no.6 hospital, ningbo university, ningbo, zhejiang, china. tel: +86-18106606963 xin wang department of hand surgery, ningbo no.6 hospital, ningbo university, ningbo, zhejiang, china

conclusion vr reconstruction for both single-direction images and sushi using dti25 raw data provides excellent 3d displays of the peripheral nerves in the wrist region. sushi post-processing is a useful denoising tool because it automatically reduces the majority of isotropic object noise. results single-direction vr reconstruction clearly showed the nerves for both dti6 and dti25 but with obv...

Journal: :asia oceania journal of nuclear medicine and biology 0
toshihiko wakabayashi department of neurosurgery, nagoya university, graduate school of medicine toshihiko iuchi division of neurological surgery, chiba cancer center naohiro tsuyuguchi department of neurosurgery, osaka city university graduate school of medicine ryo nishikawa department of neuro-oncology/neurosurgery, saitama international medical center, saitama medical university yoshiki arakawa department of neurosurgery, kyoto university graduate school of medicine takashi sasayama department of neurosurgery, kobe university graduate school of medicine

objective(s): the study objective was to assess the diagnostic performance of positron emission tomography (pet) for gliomas using the novel tracer 18f-fluciclovine (anti-[18f]facbc) and to evaluate the safety of this tracer in patients with clinically suspected gliomas.methods: anti-[18f]facbc was administered to 40 patients with clinically suspected high- or low-grade gliomas, followed by pet...

Journal: :iranian journal of medical sciences 0
tamer sekmenli department of pediatric surgery, selcuk university, faculty of medicine konya, turkey metin gündüz department of pediatric surgery, selcuk university, faculty of medicine konya, turkey ilhan ciftci department of pediatric surgery, selcuk university, faculty of medicine konya, turkey

undescended ovary is a rare entity and usually presentedas a case report. it is associated with urinary and uterine anomalies. symptomatic patients are diagnosed during surgery. most of the patients are asymptomatic and treatment is unnecessary. they are incidentally diagnosed during infertility evaluation and treatment such as ovarian hyperstimulation studies. a 15-year-old female patient pres...

A Asilian AA Forouz Mehr F Fatemi

Since the discovery of X-rays, the use of imaging technology has continued to play an important role in medicine. Technological advancements have led to the development of various imaging modalities, most of which have been used to image organs deep within the human body. More recently, attention has focused on the application of imaging technology for evaluation of the skin. A variety of techn...

Journal: :middle east journal of cancer 0
milad baradaran-ghahfarokhi medical physics and medical engineering department, school of medicine, isfahan university of medical sciences, isfahan, iran mohammad hadi bagheri medical imaging research center and department of radiology, shiraz university of medical sciences, shiraz, iran mehrzad lotfi medical imaging research center and department of radiology, shiraz university of medical sciences, shiraz, iran mohammad amin mosleh-shirazi center for research in medical physics and biomedical engineering and radiotherapy department, shiraz university of medical sciences, shiraz, iran reza faghihi medical radiation department, school of mechanical engineering, shiraz university, shiraz, iran kamal hadad medical radiation department, school of mechanical engineering, shiraz university, shiraz, iran

background : safe dose escalation is highly desirable in radiotherapy for prostate cancer. prostate displacement due to bladder filling can be significant, so improved targeting of the prostate by ultrasound imaging potentially allows for a reduction in the target margin and consequently less toxicity. this study estimates the accuracy of ultrasound for prostate and bladder volume measurements ...

Journal: :iranian journal of nuclear medicine 2010
ramin sadeghi hosnoddin nabiev vahid reza dabbagh kakhki mehdi momennezhad toktam mohammadi rana

introduction: although pet scanning using f-18[fdg] is considered the superior radiotracer for tumnor imaging, gallium-67 is still in use for some malignancies such as lymphoma and hepatoma. one of the strategies to improve the diagnostic accuracy of gallium is to perform spect which is reported to be more sensitive compared to planar imaging. in this study we compared the sensitivity of spect ...

Herein we report the possibility of using green and red emitting silica-coated cadmium selenide (CdSe) quantum dots (QDs) for remarkable stem and cancer cellular imaging, efficient cellular uptake and fluorescence imaging of semi and ultra-thin sections of tumor for in vivo tumor targeted imaging applications. The comparative studies of high contrast cellular imaging behaviours of the silica-co...

Introduction: Computed tomography (CT) imaging is the choice of investigation for evaluation of extent of tumor under the mucosa, locally and regionally. This study was undertaken to assess the accuracy of preoperative CT imaging in the staging of carcinoma of the larynx and hypopharynx.   Materials and Methods: In this retrospective study, all cases who were clinically (c) staged T3–T4 and w...

Background & Aim: Molecular imaging enables us to non-invasively visualize tissue microstructures and lesion characterization, allowing accurate diagnosis of diseases at early stages. A successful molecular imaging requires a nontoxic contrast agent with high sensitivity. Nowadays, a wide range of nanoparticles have been developed as contrast agents for medical imaging modalities. Here, we revi...

تکاور, عباس ,

Basic physical principles of nuclear magnetic resonance imaging (N.M.R.I), a nonionizing medical imaging technique, are described. Principles of NMRI with other conventional imaging methods, ie, isotope scanning, ultrasonography and radiography have been compared. T1 and T2 and spin density (S.D.) factors and different image construction techniques based on their different combinations is discu...

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