نتایج جستجو برای: imaging tomography

تعداد نتایج: 588111  

Journal: :iranian journal of medical physics 0
seyed mahdi safavi m.sc. in nuclear engineering, faculty of nuclear engineering, shahid beheshti university, tehran, iran. hamid jafari m.sc. in nuclear engineering, faculty of nuclear engineering, shahid beheshti university, tehran, iran. alireza kamali asl assistant professor of radiation medical engineering., shahid beheshti university, tehran, iran. majid shahreyari professor, nuclear engineering dept, shahid beheshti university, tehran, iran.

introduction: radiation imaging is one of the applicable methods in diagnostic medicine and nondestructive testing for industrial applications. in nondestructive 3d imaging, in addition to the radiation source, there is a requirement for a suitable detection system, data acquisition system, mechanical sections for moving objects, reconstruction algorithm and finally a computer for processing an...

Journal: :acta medica iranica 0
tugce ozlem kalayci department of radiology, malatya beydagi government hospital, malatya, turkey. ayşe nur akatlı department of pathology, school of medicine, malatya, turkey. fitnet sönmezgöz department of radiology, malatya beydagi government hospital, malatya, turkey. emine türkmen şamdancı department of pathology, school of medicine, malatya, turkey.

giant uterine leiomyomas are extremely rare neoplasms and are challenging both diagnostically and therapeutically. a 49-year-old premenopausal female presented at our department complaining of abdominal pain and distention for several years. ultrasound (us), color doppler us, abdominal computed tomography imaging after administration of contrast material, and abdominal magnetic resonance imagin...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده فنی و مهندسی 1388

چکیده ندارد.

Journal: :iranian journal of radiology 0
han yoo-bee department of radiology, incheon st. mary’s hospital, college of medicine, the catholic university of korea, incheon, republic of korea shin yu ri department of radiology, incheon st. mary’s hospital, college of medicine, the catholic university of korea, incheon, republic of korea; department of radiology, incheon st. mary’s hospital, college of medicine, the catholic university of korea, incheon, republic of korea. tel: +82-322805233, fax: +82-322805230 kim ki jun department of radiology, incheon st. mary’s hospital, college of medicine, the catholic university of korea, incheon, republic of korea kim jiyoung department of hospital pathology, incheon st. mary’s hospital, college of medicine, the catholic university of korea, incheon, republic of korea

perivascular epithelioid cell tumor (pecoma) is a rare mesenchymal tumor composed of immunohistochemically and histologically distinctive perivascular epithelioid cells. here, we report on the computed tomography (ct) and magnetic resonance imaging (mri) findings of ovarian pecoma with pulmonary metastasis. the tumor was visible as a multilocular hemorrhagic mass that encased the ovarian vessel...

Journal: :asia oceania journal of nuclear medicine and biology 0
jin-suk kim department of nuclear medicine, konyang university hospital, daejeon, south korea shin young park department of pathology, konyang university hospital, daejeon, south korea

an inflammatory pseudotumor (ipt) is a rare benign lesion, characterized by nonneoplastic proliferation of inflammatory cells and presence of intermingling collagen fibers. ipt commonly occurs in the lungs and orbita, while an intraspinal ipt is extremely rare. ipt can mimic both clinically and radiologically malignant processes, and making a definitive preoperative diagnosis is often difficult...

Ali Bagherpour Maryam Mohammadzadeh Rezaei Shahrokh Nasseri

Precise localization of the third molars in relation to the inferior alveolar nerve canal is critical from a clinical point of view and strongly affects the surgical treatment outcome. Recently, by using three-dimensional modeling software, the relationship of third molar root apices and inferior alveolar nerve canal can be better understood. In this study, the spatial relationship of two surgi...

Journal: :asia oceania journal of nuclear medicine and biology 0
yoshio monzen department of radiology, hiroshima prefectural hospital, hiroshima, japan akihisa tamura department of radiology, hiroshima prefectural hospital, hiroshima, japan hajime okazaki department of radiology, hiroshima prefectural hospital, hiroshima, japan taichi kurose department of radiology, hiroshima prefectural hospital, hiroshima, japan masayuki kobayashi department of radiology, hiroshima prefectural hospital, hiroshima, japan masatsugu kuraoka department of pathology, hiroshima prefectural hospital, hiroshima, japan

objective(s): in this study, we aimed to analyze the relationship between the diagnostic ability of fused single photon emission computed tomography/computed tomography (spect/ct) images in localization of parathyroid lesions and the size of adenomas or hyperplastic glands. methods: five patients with primary hyperparathyroidism (phpt) and 4 patients with secondary hyperparathyroidism (shpt) we...

Ali Parach Fatollah Bouzarjomehri, Mahdieh Ghadimi Reza Nafisi-Moghadam Seyed Mohammad Jalil Abrisham

Introduction: Increasing in refer to computed tomography (CT-scan) imaging causes to increase in cumulative dose. Stereoradiography (EOS) is an X-ray imaging technology that, by eliminating scattering radiation, reduces patient's absorption dose and improves image quality.   Materials and Methods: This cross-sectional study was carried out in a hosp...

Fakher Rahim, Gholamreza Dianat Morteza Tahmasebi Nader Saki,

Objective: The purpose of this study was to compare the use of cross-sectional imaging techniques verses surgery in locating parotid masses. Material and Methods: Our study was performed on patients assumed to have parotid masses from Dec 2010 to Dec 2011. Before surgery, imaging studies (Computed Tomography and Magnetic Resonance Imaging) of parotid were done. After surgery, we compared the s...

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